5. Divide 6/13 by 6 /12 -
O A. 12/13
O B. 9/16
O C. 13/12
O D. 1/12

Answers

Answer 1
The answer for 6/13 divided by 6/12 would be A. 12/13 :)
Answer 2
Answer is A. 12/13.

Explanation:
In order to divide fractions you have to use the method KCF which stands for: Keep, Change Flip.

Step 1: Keep 6/13 how it is, 6 over 13.
Step 2: (If you need to add the multiply symbol, change the division symbol into a multiplication symbol).
Step 3: Then flip 6/12 making it 12/6.
Step 4: Multiply the numerator straight across 6 times 12, which is 72, now multiply the denominator straight across by 13 times 6 which is 78.
Step 5: After this process you should get 72/78, (72 over 78, 72 on top, 78 on bottom.
Step 6: (Last Step): Simplify both 72 and 78 by 6, (divide 72 and 78), and you should get the answer of 12/13.

Related Questions

Three times a week tina walks 3/10 mile from school to library studies for 1 hour and then walks home 4/10 mile home. How much more will she need to walk to win a prize

Answers

Tina walks to the library for her studies three times a week. During each visit, she walks 3/10 mile to the library and then walks 4/10 mile back home. Therefore, Tina walks a total of 1.4 miles each week for her library studies (3 times a week x (3/10 mile to library + 4/10 mile back home) = 1.4 miles).

If Tina wants to win a prize for walking, she would need to walk more than 1.4 miles per week. The amount of additional distance she needs to walk depends on the requirements for the prize.

For example, if the prize requires her to walk 2 miles per week, Tina would need to walk an additional 0.6 miles (2 miles - 1.4 miles) to meet the goal. This could be achieved by adding an extra walk to her routine or extending the distance of her existing walks.

It is important to note that walking is a great form of exercise and can have many benefits for overall health and well-being. By incorporating regular walks into her routine, Tina can improve her physical fitness and potentially achieve her goal of winning a prize.

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22. Look at the given triangles.
4x + 2
7x+7
X+3
2x-5
x+7
5x-4
a. Write an expression in simplest form for the perimeter of each triangle.
b. Write another expression in simplest form that shows the difference between the perimeter
of the larger triangle and the perimeter of the smaller triangle.
c. Find the perimeter for each triangle when x = 3

Answers

Two triangles have perimeters that can be expressed as 12x + 12 and 8x - 2,  with a difference of 4x + 14, and have perimeters of 47 and 28 when x = 3.

a. The perimeter of each triangle can be found by adding up the lengths of all three sides:

Triangle 1: (4x+2) + (7x+7) + (x+3) = 12x + 12

Triangle 2: (2x-5) + (x+7) + (5x-4) = 8x - 2

b. To find the difference in perimeter between the larger triangle and the smaller triangle, we can subtract the smaller perimeter from the larger perimeter:

(12x + 12) - (8x - 2) = 4x + 14

c. To find the perimeter for each triangle when x = 3, we can substitute x = 3 into the expressions found in part (a):

Triangle 1: (4(3)+2) + (7(3)+7) + (3+3) = 47

Triangle 2: (2(3)-5) + (3+7) + (5(3)-4) = 28

Therefore, the perimeter of Triangle 1 is 47 units and the perimeter of Triangle 2 is 28 units when x = 3.

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What is the domain of the rational function f of x is equal to the quantity x squared plus x minus 6 end quantity over the quantity x cubed minus 3 times x squared minus 16 times x plus 48 end quantity question mark {x ∈ ℝ| x ≠ –4, –2, 3, 4} {x ∈ ℝ| x ≠ –4, 3, 4} {x ∈ ℝ| x ≠ –4, 4} {x ∈ ℝ| x ≠ –2, 3}

Answers

The domain of the rational function is: option (2)  {x ∈ ℝ | x ≠ -4, 3, 4}

What is Rational number ?

A rational number is any number that can be expressed as the ratio or fraction of two integers, where the denominator is not zero. In other words, a rational number is a number that can be written in the form of p/q, where p and q are integers, and q is not equal to zero.

The domain of a rational function is the set of all real numbers for which the function is defined, and the denominator is not equal to zero. So, we need to find the values of x for which the denominator of the given rational function is not zero.

The denominator of the given rational function is:

x³ - 3x² - 16x + 48

We can factor this polynomial using synthetic division or polynomial long division:

x³- 3x² - 16x + 48 = (x - 4)(x - 3)(x + 4)

So, the denominator of the rational function is not defined when:

x - 4 = 0 or x - 3 = 0 or x + 4 = 0

Solving these equations, we get:

x = 4 or x = 3 or x = -4

Therefore, the domain of the given rational function is:

{x ∈ ℝ| x ≠ –4, 3, 4}

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Write an inequality and a word sentence that represent the graph. Let x represent the unknown number.

A number line. The number line is shaded left of an open circle at 1.

Inequality:

Answers

The word sentence for the given number line represents the X is greater than zero. The inequality is the X is not less than or equal to zero.

In the given number line the values are from negative infinity to positive infinity. Though the number line is having all values, there is some part that is shaded only on certain parts of the number line. The part is from number 1 to positive infinity marking zero as a circle.

The circle represents the value starts counting from the next step. In the given number line circle is shaded at number zero and the value started from the next value which is number 1 onwards to positive infinity.

So, the given number line represents X is greater than zero and X is not less than or equal to zero.

In mathematical words,

X < 0 and X≠0

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Given question is not having enough information to solve, for better understanding attaching the number line image below.

Solve for x. −43x 16<79 drag and drop a number or symbol into each box to correctly complete the solution.

Answers

-43x < 79 - 16

How can the inequality −43x + 16 < 79 be solved?

To solve the inequality −43x + 16 < 79, we need to isolate the variable x.

Let's begin by subtracting 16 from both sides of the inequality:

−43x + 16 - 16 < 79 - 16

Simplifying the equation, we have:

−43x < 63

Next, we divide both sides of the inequality by -43. However, when we divide by a negative number, the direction of the inequality sign will be flipped:

x > 63 / -43

Simplifying further, we have:

x > -1.465

Therefore, the solution to the inequality is x > -1.465.

In interval notation, we can represent the solution as (-1.465, ∞), indicating that x is greater than -1.465 and extends indefinitely towards positive infinity.

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Graph


y=4x−9y, equals, 4, x, minus, 9.

Answers

The line crosses the y-axis at -9 and has a slope of 4, meaning it increases 4 units in the y-direction for every 1 unit increase in the x-direction.

What is graph?

A graph is a visual representation of data, typically involving the use of points, lines, and curves to show how different values are related to each other. Graphs can be used to display a wide range of information, from mathematical functions and scientific data to business trends and social networks.

Here,

To graph y = 4x - 9, we can start by plotting the y-intercept, which is -9 on the y-axis. Then, we can use the slope of 4 to find other points on the line.

Slope = 4 can be written as rise/run = 4/1. This means that for every increase of 1 in the x-direction, the y-value increases by 4.

Starting from the y-intercept (-9,0), we can go up 4 units and to the right 1 unit to get the point (1,-5). We can continue this pattern and plot more points on the line, or we can simply draw a straight line through the y-intercept and (1,-5) to represent the equation y = 4x - 9.

Here's what the graph looks like:

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Prove by cases that 25k^2 + 15k is an even integer whenever 5k- 3 is an integer. ​

Answers

We can prove that 25k² + 15k is an even integer whenever 5k - 3 is an integer by considering two cases: when k is even and when k is odd.

Let's assume that 5k - 3 is an integer. Then, we can write k as k = (5k - 3 + 3)/5 = (5k - 3)/5 + 3/5. Since (5k - 3)/5 is an integer, we can write it as (5k - 3)/5 = n, where n is an integer. Thus, we have k = n + 3/5.

Now, we can substitute this expression for k into 25k² + 15k as follows:

25k² + 15k = 25(n + 3/5)² + 15(n + 3/5)

Expanding the square, we get:

25(n² + 6n/5 + 9/25) + 15n + 9 = 25n² + 45n/5 + 34/5

Simplifying, we get:

25k² + 15k = 5(5n² + 9n) + 34/5

Since 5n² + 9n is an integer, we can write it as m, where m is an integer. Thus, we have:

25k² + 15k = 5m + 34/5

Now, we can consider two cases:

Case 1: k is even. In this case, k can be written as k = 2p, where p is an integer. Substituting this expression into 5k - 3, we get:

5k - 3 = 5(2p) - 3 = 10p - 3

Since 10p is even, we can conclude that 10p - 3 is odd. Therefore, m must be odd, since 5m + 34/5 is even. Thus, 25k² + 15k is even, since it can be written as 5m + 34/5, where 5m is even and 34/5 is even.

Case 2: k is odd. In this case, k can be written as k = 2p + 1, where p is an integer. Substituting this expression into 5k - 3, we get:

5k - 3 = 5(2p + 1) - 3 = 10p + 2

Since 10p is even, we can conclude that 10p + 2 is even. Therefore, m must be even, since 5m + 34/5 is even. Thus, 25k² + 15k is even, since it can be written as 5m + 34/5, where 5m is even and 34/5 is even.

In both cases, we have shown that 25k² + 15k is an even integer whenever 5k - 3 is an integer. Therefore, the statement is proved.

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if an i statement is true, what is the truth value of its corresponding a statement? true false logically undetermined

Answers

If an 'I' statement is true, then the truth value of its corresponding E statement is equals to the true. So, option(a) is right answer of this problem.

Truth value : The truth value of a statement is either true or false, depending on whether the logic makes sense or not. Let us assume two statements, p : Ram goes to school daily

q : Ram will get good marks

We use implication for determining value. In logic, implication is relationship between different propositions in which the second proposition is a logical consequence of the first.

If p is true and q is true, then (p implies q) is true.If p is true and q is false, then (p implies) must be false.

first case : If Ram does not go to school daily then he will get good marks. That is p is false and q is true, ¬ p --> q ⇒ true ( using implication rule)

second case : If Ram does not go to school daily then he will not get good marks. That is p is false and q is false , ¬ p --> ¬ q ⇒ true ( using implication rule)

Hence, required value of statement is true.

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If f(x) = 3(5") + x and g(x) = 3cos(x), what is (f9)'()? O (3(5*) In(5) + 1)(3cos(x)) + (3(5") + x)(sin(x)) O (3(5") In(5) + 1)(3sin(x)) O (3(5") In(5) + 1)(-3sin(x)) O (3(5) In(5) + 1)(3cos(x)) + (3(5") + x)(-3sin(x))

Answers

The derivative of (f∘g)(x) can be found using the chain rule, which states that the derivative of (f∘g)(x) is (f'(g(x)))(g'(x)).

In this case, (f∘g)(x) = f(g(x)) = 3(5^x) + 3cos(x), so we need to find f'(g(x)) and g'(x) and then multiply them together. The derivative of f(x) is f'(x) = 15^x * ln(5) + 1, so the derivative of f(g(x)) with respect to g(x) is f'(g(x)) = 15^(g(x)) * ln(5) + 1. The derivative of g(x) is g'(x) = -3sin(x). Therefore, using the chain rule, we have:(f∘g)'(x) = f'(g(x)) * g'(x) = (15^(g(x)) * ln(5) + 1) * (-3sin(x))Substituting g(x) = 3cos(x), we get:(f∘g)'(x) = (15^(3cos(x)) * ln(5) + 1) * (-3sin(x))So the correct answer is: (3(5^3cos(x)) ln(5) + 1) * (-3sin(x))

For more similar questions on topic a) The intervals for which f(x) = -5.5sin(x) + 5.5cos(x) is concave up and concave down on [0,2π] can be found by analyzing the second derivative of the function. Taking the second derivative of f(x), we get:

f''(x) = -5.5cos(x) - 5.5sin(x)

To find the intervals of concavity, we need to determine where f''(x) is positive and negative.

When f''(x) > 0, the function is concave up. When f''(x) < 0, the function is concave down.

Setting f''(x) = 0, we get:

-5.5cos(x) - 5.5sin(x) = 0

Simplifying, we get:

cos(x) + sin(x) = 0

Solving for x, we get:

x = 3π/4, 7π/4

These are the possible points of inflection for the function.

Using test intervals, we can determine the intervals of concavity:

When 0 ≤ x < 3π/4 or 7π/4 < x ≤ 2π, f''(x) < 0, so f(x) is concave down.

When 3π/4 < x < 7π/4, f''(x) > 0, so f(x) is concave up.

b) The possible points of inflection for f(x) on [0,2π] are x = 3π/4 and x = 7π/4. To find the coordinates of these points, we can substitute each value of x into the original function f(x):

f(3π/4) = -5.5sin(3π/4) + 5.5cos(3π/4) = 5.5√2 - 5.5√2/2 = 5.5√2/2

So the coordinates of the point of inflection at x = 3π/4 are (3π/4, 5.5√2/2).

Similarly, we can find the coordinates of the point of inflection at x = 7π/4:

f(7π/4) = -5.5sin(7π/4) + 5.5cos(7π/4) = -5.5√2 - 5.5√2/2 = -5.5(3/2)√2

So the coordinates of the point of inflection at x = 7π/4 are (7π/4, -5.5(3/2)√2).

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Factorize completely the expression (m+n)(2x-y)-x(m+n)

Answers

The complete factorization of the expression is  (m+n)(x-y).

What is the complete factorization of the expression?

The complete factorization of the expression is determined as follows;

To factorize the expression (m+n)(2x-y)-x(m+n), we can first factor out the common factor (m+n):

(m+n)(2x-y)-x(m+n) = (m+n)(2x-y-x)

Next, we will factorize completely as follows;

2x - x - y = x - y

(m+n)(2x-y-x)  = (m+n)(x-y)

Therefore, the fully factorized form of the expression is (m+n)(x-y).

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25. A small cone of height 8 cm is cut off from a bigger cone to leave a frustum of height 16 cm. If the volume of the smaller cone is 160 cm, find the volume of the frustum. ​

Answers

The volume of the frustum is approximately 634.3 cubic centimeters.

How to find the volume?

Let the radius of the smaller cone be 'r' and the radius of the bigger cone be 'R'.

Since the height of the smaller cone is 8 cm and its volume is 160 cm³, we have:

1/3 * π * r² * 8 = 160

r² = 60/π

r ≈ 4.03 cm

Now, using similar triangles, we can find the radius 'R' of the bigger cone:

(R - r)/16 = R/24

24R - 24r = 16R

R = 2r/3

R ≈ 2.69 cm

Therefore, the volume of the frustum is:

1/3 * π * (2.69² + 2.69*4.03 + 4.03²) * 16 - 1/3 * π * 4.03² * 8

≈ 634.3 cm³

So, the volume of the frustum is approximately 634.3 cubic centimeters.

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Item 8


Find the measure of a central angle of a regular polygon with 7 sides. Round your answer to the nearest tenth of a degree, if necessary

Answers

The measure of a central angle of a regular polygon with 7 sides is approximately 51.4 degrees.

What is the central angle in a regular 7-sided polygon, rounded to the nearest tenth of a degree?

For a regular polygon with 7 sides, we can substitute n = 7 into the formula:

central angle = 360 degrees / 7

central angle ≈ 51.4 degrees

A regular polygon is a polygon with equal sides and equal angles. The measure of each interior angle of a regular polygon with n sides is given by the formula:

interior angle = (n-2) x 180 degrees / n

For example, for a regular polygon with 7 sides:

interior angle = (7-2) x 180 degrees / 7

interior angle = 5 x 180 degrees / 7

interior angle ≈ 128.6 degrees

Since a central angle of a regular polygon is an angle formed by two consecutive radii from the center of the polygon, the measure of a central angle is equal to the measure of the exterior angle.

The measure of an exterior angle of a regular polygon with n sides is given by the formula:

exterior angle = 360 degrees / n

For a regular polygon with 7 sides, we can use the formula above to find the measure of each exterior angle:

exterior angle = 360 degrees / 7

exterior angle ≈ 51.4 degrees

Therefore, the measure of a central angle of a regular polygon with 7 sides is approximately 51.4 degrees, rounded to the nearest tenth of a degree as requested.

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If it takes 15 minutes to complete a lap aaround a park, what fraction of a lap has the runner run in 9 minutes,assuming she runs a constant pace?

Answers

Answer:

3/5

Step-by-step explanation:

If it takes 15 minutes to complete one lap around the park, then the runner completes 1/15 of a lap in 1 minute.

To find out what fraction of a lap the runner completes in 9 minutes, we can multiply the fraction completed in 1 minute by the number of minutes elapsed:

Fraction completed in 9 minutes = (1/15) x 9 = 9/15 = 3/5

Therefore, the runner has completed 3/5 of a lap in 9 minutes

The potters want to buy a small cottage costing $118,000 with annual insurance and taxes of $710. 00 and $2800. 0. They have saved $14,000. 00 for a down payment, and they can get a 5%, 15 year mortgage from a bank. They are qualified for a home loan as long as the total monthly payment does not exceed $1000. 0. Are they qualified?

Answers

The potters are qualified for the home loan as their total monthly payment is $831.02, which is less than $1000.00.

The total cost of the cottage along with the annual insurance and taxes is $118,000 + $710 + $2800 = $121,510.

The down payment made by the potters is $14,000. Therefore, the amount to be financed through a mortgage is $121,510 - $14,000 = $107,510.

Using the formula for the monthly payment of a mortgage, which is given by:

M = P [ i(1 + i)^n ] / [ (1 + i)^n - 1]

where P is the principal (amount to be financed), i is the monthly interest rate, and n is the total number of monthly payments.

For a 5%, 15-year mortgage, the monthly interest rate is 0.05/12 = 0.0041667, and the total number of monthly payments is 15 x 12 = 180.

Plugging in the values, we get:

M = $107,510 [ 0.0041667 (1 + 0.0041667)^180 ] / [ (1 + 0.0041667)^180 - 1 ]

M = $831.02

Therefore, the total monthly payment for the mortgage and the annual insurance and taxes is $831.02 + $59.17 + $233.33 = $1123.52, which is more than the maximum allowed payment of $1000.00. Hence, the potters are qualified for the home loan.

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Calculate the area.....................................

Answers

Area for triangle = 32ft
Area for rectangle = 240ft
Total area = 272ft squared

In ∆DEF, DG−→− bisects ∠EDF. Is ∆FDG similar to ∆EDG? Explain.


A. Yes; ∆FDG ≅ ∆EDG by ASA.


B. Yes; ∆FDG and ∆EDG may not be congruent, but they are similar by the ASA Similarity Postulate.


C. No; ∆FDG and ∆EDG are not similar unless DE = DF.


D. No; ∆FDG and ∆EDG are not similar unless DE = EG and DF = FG

Answers

In ∆DEF, DG−→− bisects ∠EDF. ∆FDG is similar to ∆EDG; ∆FDG and ∆EDG may not be congruent, but they are similar by the ASA Similarity Postulate. Therefore, the correct option is B.

Consider the following reasoning:

1. Since DG bisects ∠EDF, it means that ∠EDG = ∠FDG. This is the Angle Bisector Theorem.

2. In triangles FDG and EDG, we know that ∠FDG = ∠EDG (from step 1) and ∠DFG = ∠DEG (both are vertical angles and therefore congruent).

3. Now we have two pairs of congruent angles: ∠FDG = ∠EDG and ∠DFG = ∠DEG.

4. According to the (Angle-Side-Angle) or  ASA Similarity Postulate, if two angles in one triangle are congruent to two angles in another triangle, then the triangles are similar. Therefore, ∆FDG is similar to ∆EDG.

Hence, the correct answer is option B: Yes; ∆FDG and ∆EDG may not be congruent, but they are similar by the ASA Similarity Postulate.

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What is a nonspecific defense?
What is the body’s second life of defense? When does it take effect?
Identify the roles of nonspecific leukocytes in the body’s second line of defense.
Jera cut her finger. The next day, the skin around the cut became red and warm. Why are these signs of infection?

Answers

A nonspecific defense, also known as innate immunity, is the first line of defense that the body uses against pathogens, such as bacteria, viruses, and fungi.

What is nonspecific defense?

This defense is considered nonspecific because it is not targeted towards a particular pathogen but rather provides a general defense mechanism that helps the body to prevent and fight infections. Examples of nonspecific defenses include physical barriers such as skin and mucous membranes, chemical barriers such as stomach acid and lysozyme, and cellular defenses such as phagocytic cells and natural killer cells.

2. The body's second line of defense is also part of the innate immune system and involves the activation of nonspecific leukocytes, including neutrophils, monocytes/macrophages, and natural killer cells. This defense takes effect when pathogens manage to breach the physical and chemical barriers of the body and enter into the tissues. These leukocytes then recognize and attack the invading pathogens through various mechanisms such as phagocytosis, release of cytotoxic substances, and activation of the complement system.

3. Nonspecific leukocytes play critical roles in the body's second line of defense by recognizing and attacking foreign pathogens. Neutrophils are the most abundant leukocytes in the body and are the first responders to infection. They are recruited to the site of infection and destroy pathogens through phagocytosis and release of antimicrobial substances. Monocytes/macrophages also play a crucial role in phagocytosis and release cytokines that activate other immune cells. Natural killer cells are responsible for recognizing and killing virus-infected cells and tumor cells.

Lastly, question 4. When Jera's skin became red and warm around the cut, it was a sign of inflammation, which is a normal response of the immune system to infection. Inflammation is characterized by redness, heat, swelling, and pain, and is caused by the release of chemicals such as histamine and cytokines in response to infection. The purpose of inflammation is to increase blood flow to the site of infection, bringing immune cells and nutrients to aid in the fight against the invading pathogens.

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Classify each question as statistical or nonstatistical.
statistical
nonstatistical
what kind of dog does bruno have?
what is clara's brother's name?
what time did javed go to sleep?
how many siblings do you have?
what time do you go to sleep?
how many pets do you have?

Answers

The options that are statistical are:

how many pets do you have?

what time do you go to sleep?

how many siblings do you have?

The options that are non-statistical are:

what kind of dog does bruno have?

what is clara's brother's name?

what time did javed go to sleep?

How to identify statistical Data?

A statistical question is defined as one that will obtain the data that will vary from one particular response to another. However, a non-statistical question is defined as one that will obtain data that is basically exact and then has only one response.

A question that will not provide a variety of different answers is referred to as not a statistical question. For example, we can say that 'how many siblings do I have?' is not referred to as statistical. The answer will definitely have just one response, and not many.

A non-statistical question in math is defined as a question that will not provide a variety of answers. Finally, non-statistical questions provide us with exact answers that do not change.

Thus, the options that are statistical are:

how many pets do you have?

what time do you go to sleep?

how many siblings do you have?

The options that are non-statistical are:

what kind of dog does bruno have?

what is clara's brother's name?

what time did javed go to sleep?

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Thr ratio of measures of the angle is ABC IS 4:13:19. Find the measure of the angle. This is geometry

Answers

The measure of angle A is 20 degrees, the measure of angle B is 65 degrees, and the measure of angle C is 95 degrees.

To find the measure of the angles in triangle ABC, we first need to determine the total ratio of measures.

The total ratio is 4 + 13 + 19 = 36.

Next, we can use the ratios to find the measure of each angle.

Let x be the measure of the smallest angle in triangle ABC.

Then the measures of the angles are:

Angle A = 4x
Angle B = 13x
Angle C = 19x

We know that the sum of the angles in a triangle is 180 degrees, so we can set up the equation:

4x + 13x + 19x = 180

Simplifying, we get:

36x = 180

Dividing both sides by 36, we get:

x = 5

Therefore, the measures of the angles in triangle ABC are:

Angle A = 4x = 4(5) = 20 degrees
Angle B = 13x = 13(5) = 65 degrees
Angle C = 19x = 19(5) = 95 degrees

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Jessica's cookie recipe calls for 1 1/2
cups of flour. She only has enough
flour to make 1/3 of a batch. How much
flour does she have?
A 1/3 cup
B 1/2 cup
C 1 cup
D 2 cups

Answers

Answer:

B

Step-by-step explanation:

1 1/2 x 1/3

=1/2

So therefore the answer is B (1/2 cup)

Answer:

The answer is B ( 1/2 cup)

x+2y=6
-7x+3y=-8 (using substitution)

Answers

Answer:

point form - (2,2)

x=2 y=2

The diagram below shows the radius of the circular opening of a Ice cream cone.
Which of the following Is closest to the circumference of the opening in inches.

Answers

Circumference = 2 пr
r = 1.25 in
C = 2*1.25*п
C = 7.85 in

Answer: 7.85 in

The number of bacteria in a certain colony doubles every 5 days. At the same rate, how long will the colony need to triple in number?

Answers

The colony will need to triple in number after about 7.58 days.

How to find the number of bacteria in a certain colony?

Since the number of bacteria doubles every 5 days, we can write the relationship between the number of bacteria and time as an exponential function:

N(t) = N0 x 2^(t/5)

where N0 is the initial number of bacteria and t is the time in days.

To find out how long it will take for the colony to triple in number, we need to solve the equation:

N(t) = 3N0

Substituting the expression for N(t) from above, we get:

N0 x 2^(t/5) = 3N0

Dividing both sides by N0, we get:

2^(t/5) = 3

Taking the logarithm of both sides (with base 2) gives:

t/5 = log2(3)

Multiplying both sides by 5, we get:

t = 5 x log2(3)

Using a calculator or a computer program to evaluate the logarithm, we get:

t ≈ 7.58

Therefore, the colony will need to triple in number after about 7.58 days.

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Rob bought a 1965 Fender Jazzmaster vintage electric guitar in 1980 for a price of $150. In 2010 it was appraised for $4,200. Suppose $150 was deposited in a variable-rate certifi cate of deposit for 30 years with interest compounded daily. A. If the CD paid 12. 3% interest for the fi rst 7 years, what would the balance be after the fi rst 7 years? Round to the nearest cent. B. If the CD paid 6% interest for the next 10 years, what would the balance be after the fi rst 17 years? Round to the nearest cent. C. If the CD paid 4. 1% interest for the remaining 13 years, what would the balance be after 30 years? Round to the nearest cent. D. What is the difference between the appraised value of the guitar and the amount the original $150 would have earned in the CD?

Answers

a.  If the CD paid 12. 3% interest for the first 7 years, he balance be after the first 7 years will be $492.89.

b.  If the CD paid 6% interest for the next 10 years, the balance be after the first 17 years would be $784.98.

c.  If the CD paid 4. 1% interest for the remaining 13 years, the balance be after 30 years would be $1,265.59.

d. The difference between the appraised value of the guitar and the amount the original $150 would have earned in the CD is $2,784.41.

A. The annual interest rate for a CD that pays 12.3% interest compounded daily is 12.3%/365 ≈ 0.0337% per day. The balance after 7 years can be calculated using the formula:

Balance = $150 x (1 + 0.000337)^((365 x 7) / 365) ≈ $492.89

Rounding to the nearest cent, the balance after 7 years is $492.89.

B. After 7 years, the remaining term of the CD is 30 - 7 = 23 years. The annual interest rate for a CD that pays 6% interest compounded daily is 6%/365 ≈ 0.0164% per day. The balance after 17 years can be calculated using the formula:

Balance = $492.89 x (1 + 0.000164)^((365 x 10) / 365) ≈ $784.98

Rounding to the nearest cent, the balance after 17 years is $784.98.

C. After 17 years, the remaining term of the CD is 30 - 17 = 13 years. The annual interest rate for a CD that pays 4.1% interest compounded daily is 4.1%/365 ≈ 0.0112% per day. The balance after 30 years can be calculated using the formula:

Balance = $784.98 x (1 + 0.000112)^((365 x 13) / 365) ≈ $1,265.59

Rounding to the nearest cent, the balance after 30 years is $1,265.59.

D. The difference between the appraised value of the guitar and the amount the original $150 would have earned in the CD is:

$4,200 - $1,265.59 - $150 ≈ $2,784.41

Rounding to the nearest cent, the difference is $2,784.41.

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A sequence can be generated by using an=an−1+7, where a1=4 and n is a whole number greater than 1. What are the first 3 terms in the sequence? 7, 11, 15 7, 28, 112 4, 11, 18 4, 28, 196

Answers

To generate the sequence, we start with a1 = 4, and then use the formula an = an-1 + 7 for n > 1.

So, to find the first 3 terms of the sequence, we can use the formula:

a2 = a1 + 7 = 4 + 7 = 11

a3 = a2 + 7 = 11 + 7 = 18

The first 3 terms of the sequence are 4, 11, and 18.

So, the answer is 4, 11, 18, which corresponds to the third option.

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"first one could you use the product rule or the quotient rule
whichever applies and simplify within reason please, for last two
take the deratives usinh tbe chain rule, product rule or quotient
rule o
2 (+ }+) 2x+ + 3 (5x + 2) k(x) = ) 6x = 7 (8) The profit (in hundreds of dollars) from selling * units of a product is given by -2 the profit function P(x) =- Find the marginal profit when 4 units a" are produced
and sold and interpret your answer using words, numbers and units. Be very specific.
(Round the number part of your answer to the nearest cent.)

Answers

For the first equation, we can use the product rule. Let f(x) = 2x+ and g(x) = 5x+2. Then, f'(x) = 2 and g'(x) = 5. Using the product rule formula, we get:

k'(x) = f(x)g'(x) + g(x)f'(x)
k'(x) = (2x+)(5) + (5x+2)(2)
k'(x) = 10x+ + 4x+10

For the profit function, P(x) = -2x^2 + 6x + 7, we can use the derivative to find the marginal profit. The derivative of P(x) is:

P'(x) = -4x + 6

To find the marginal profit when 4 units are produced and sold, we plug in x = 4 into P'(x):

P'(4) = -4(4) + 6
P'(4) = -10

Therefore, the marginal profit when 4 units are produced and sold is -10 hundred dollars or -$1,000. This means that for each additional unit produced and sold beyond the initial 4 units, the profit will decrease by $1,000.
Hi! It seems that your question has some missing information and typos, but I'll try my best to help you with the given data. The main task here is to find the marginal profit when 4 units are produced and sold, and interpret the answer.

The profit function P(x) appears to be incomplete. However, since we're asked to find the marginal profit, we need to take the derivative of the profit function with respect to x. Marginal profit is the derivative of the profit function with respect to the number of units sold (x). We can use the chain rule, product rule, or quotient rule to find the derivative, depending on the given profit function.

Once we have the derivative, we can evaluate it at x = 4 to find the marginal profit when 4 units are produced and sold. The result will indicate how much additional profit (in hundreds of dollars) the company will gain for producing and selling one more unit.

Please provide the complete profit function P(x), and I will be glad to help you find the marginal profit and interpret the answer.

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Can someone please help me ASAP? It’s due tomorrow

Answers

Applying the concept of combination, the number of different sandwiches that can be created is determined as: D. 6.

How to Apply the Concept of Combination to Determine How May Sandwiches to be Created?

To determine the number of different sandwiches that can be created with two different meats, we can use the concept of combinations.

In this case, we need to choose 2 meats out of 4 options. The number of combinations of 2 items that can be chosen from a set of 4 items is given by the formula:

nCr = n! / r!(n-r)!

where n is the total number of items, r is the number of items to be chosen, and the exclamation mark (!) denotes the factorial function.

In this case, we have:

n = 4 (since there are 4 meat options)

r = 2 (since Regan wants to choose 2 meats)

Therefore, the number of different sandwiches that can be created is:

4C2 = 4! / 2!(4-2)! = 6

This means there are 6 different ways to choose 2 meats out of 4, and hence 6 different sandwich options.

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The parabola (showed in the picture) opens?

Answers

Step-by-step explanation:

x = sqrt (y-9)     square both sides

x^2 = y-9           add 9 to both sides

y = x^2 + 9        <====== this parabola has a POSITIVE x^2 coefficient ( +1)...

                                      so it is bowl shaped and opens UPWARD

Let f(x) = x^1/2(x-4). Find all values of x for which r*(x) - 0 or P(x) is undefined. As your answer please input the sum of all values of satisfying "(x) = 0 or () is undefined

Answers


x^(1/2) = 0

This equation has no real solutions, since no real number raised to any power can equal 0.

Therefore, the sum of all values of x satisfying r*(x) = 0 or P(x) is undefined is just 2, the only value of x for which r*(x) - 0.

To find the values of x for which r*(x) - 0 or P(x) is undefined, we first need to determine what r*(x) and P(x) are.

r*(x) is the derivative of f(x), which we can find using the product rule:

r*(x) = (1/2)x^(-1/2)(x-4) + x^1/2(1)

Simplifying this expression, we get:

r*(x) = (x-2)/sqrt(x)

To find the values of x for which r*(x) - 0, we can set r*(x) equal to 0 and solve for x:

(x-2)/sqrt(x) = 0

x - 2 = 0

x = 2

So the only value of x for which r*(x) - 0 is x = 2.

Next, we need to find the values of x for which P(x) is undefined. P(x) is undefined when the denominator of the expression for f(x) is equal to 0, since division by 0 is undefined. The denominator of f(x) is x^(1/2), so we need to solve the equation x^(1/2) = 0:

x^(1/2) = 0

This equation has no real solutions, since no real number raised to any power can equal 0.

Therefore, the sum of all values of x satisfying r*(x) = 0 or P(x) is undefined is just 2, the only value of x for which r*(x) - 0.

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I NEED HELP this is grade 9 math

Answers

The measure of angles ADC is 30⁰.

The measure of angles DCA is 120⁰.

The measure of angles DCB is 180⁰.

The measure of angles AEB is 30⁰.

What is angle ADC?

The measure of each of the angles is calculated as follows;

if length AB = length CD, then AC = AB

Also triangle ACB = equilateral triangle, and each angle = 60⁰.

Angle DAB = 90 (since line DB is the diameter)

Angle DAC = angle ADC

DAC = 90 - 60 = 30 = ADC

DCA = 180 - (30 + 30) (sum of angles in a triangle)

DCA = 120⁰.

The value of angle DCB is calculated as follows;

DCB = 180 (sum of angles on straight line)

angle AEB = angle ADC (vertical opposite angles )

angle AEB = 30⁰

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