Answer:
mixed number: 4 1/15
Exact: 61/15
PLEASE ANSWER ASAP!!!
Step-by-step explanation:
Part A
-2 -2+7=y y= +5 y=5
-1 -1+7=y y= 6
0 0+7=y y= 7
1 1+7=y y=8
2 2+7=y y=9
determine the quotient of 1 1/3 ÷ 3/5
Answer:
20/9 or 2.2
Step-by-step explanation:
1. 1 1/3 ÷ 3/5
2. 4/3 x 5/3
Answer = 20/9
Please help I am confused
The ratio of boys to girls is 1:1.
If there are 250 boys, how many
girls are there?
The fourth term of a geometric progression is 4 and the seventh term is 32/125. Find the first term, the common ratio and the sum of the first nth terms. Hence, deduce the sum to infinity.
Answer:
common ratio is 2/5
First term is 125/2
The sum of the first n terms is: [tex]S_n=\frac{125}{2} \, \frac{1-(2/5)^n}{3/5}[/tex]
The infinite sum is: [tex]S_\infty =\frac{625}{6}[/tex]
Step-by-step explanation:
The 4th term is 4, and the seventh term is 32/125 so we use the definition of nth term of a geometric sequence to create the following two equations:
[tex]a_4=a_1\,*\,r^{4-1} = a_1\,*\,r^3\\4=a_1\,*\,r^3\\and\\a_7=a_1\,*\,r^{7-1} = a_1\,*\,r^6\\\frac{32}{125} = a_1\,*\,r^6[/tex]
Now we divide a7 by a4 to get rid of a1 and work on determining the common ratio of the sequence:
[tex]\frac{a_7}{a_4} =\frac{8}{125} =\frac{a_1\,r^6}{a_1\,r^3} =r^3\\then\\r=\sqrt[3]{\frac{8}{125} } =\frac{2}{5}[/tex]
So, the common ratio is 2/5
we can now determine the first term:
[tex]a_4=4=a_1\,*\,(2/5)^3\\a_1=\frac{125*4}{8} =\frac{125}{2}[/tex]
The sum of the first n terms is given by the formula:
[tex]S_n=\frac{125}{2} \, \frac{1-(2/5)^n}{1-(2/5)} \\S_n=\frac{125}{2} \, \frac{1-(2/5)^n}{3/5}[/tex]
and therefore, the infinite sum is:
[tex]S_\infty = a_1\,\frac{1}{1-r} = \frac{125}{2} \,\frac{5}{3} =\frac{625}{6}[/tex]
Solve for a.
ab +c=d
a=b/(c-d)
a = (d - C)/b
a=b+c/d
Answer:
ab +c=d
Step-by-step explanation:
just took the test
Which expression is equivalent to 7 (x + 4)?
Answer:
7 times 5x
Step-by-step explanation:
4 plus x and x has value
Answer:
one could be (7*x) (7*4)
Step-by-step explanation:
24 kids in a classroom how many fingers how many ears and how many tougues
240 fingers I think
48 ears
24 tougues
Brainliest?
The city of Gary has a population of 75,282. Approximately 34.78% of Gary residents have a higher education degree. How many people in Gary have a higher education degree? Round to a whole person.
Answer:
26183
Step-by-step explanation:
Given that,
The population of the city of Gary is 75,282. 34.78% of Gary residents have a higher education degree.
We need to find the no of people in Gary have a higher education degree. It can be simply calcualted by taking 34.78% of 75,282 as follows :
[tex]P=75282\times 34.78\%\\\\ =75282\times \dfrac{34.78}{100}\\\\=26183.07[/tex]
or
P = 26183
So, there are 26183 people in Gary have a higher education degree.
Find the slope of the line through the points (2, -2) and (8, -2)
Answer:
0
Step-by-step explanation:
We can find the slope using
m = ( y2-y1)/(x2-x1) where ( x1,y1) and ( x2,y2) are points on the line
m = ( -2 - -2)/(8 - 2)
= ( -2 +2) / ( 8-2)
= 0/6
=0
The slope is 0
find the product: 9x(x3-4x2-3x)
Answer:
9x^4-36x^3-27x^2
Step-by-step explanation:
assuming those are exponents
Answer:
9x^4 - 36x^3 - 27x^2
Step-by-step explanation:
9x(x^3 - 4x^2 - 3x)
Multiply 9x to each of the terms in the parentheses:
9x^4 - 36x^3 - 27x^2
Calculate the slope of a line that passes through the points (3, -20) and (5,8).
O 6
O4
O 14
O 26
Answer:
Option 3: 14 is the correct answer.
Step-by-step explanation:
Slope is denoted by m and is calculated using the formula:
[tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex]
Here
(x1,y1) are the coordinates of first point and
(x2,y2) are the coordinates of second point
Given
(x1,y1) = (3, -20) and
(x2,y2) = (5,8)
Putting the values in the formula, we get
[tex]m = \frac{8-(-20)}{5-3}\\m = \frac{8+20}{2}\\m = \frac{28}{2}\\m = 14[/tex]
The slope of line passing through points (3, -20) and (5,8) is 14.
Hence,
Option 3: 14 is the correct answer.
Which of the following are necessary when proving that the opposite sides of a parallelogram are congruent? Check all that apply.
1. Opposite sides are perpendicular.
2. Opposite sides are parallel.
3. Alternate interior angles are supplementary.
4. Alternate interior angles are congruent.
Answer: b and d are it
Answer: 2 and 4
2-Opposite sides are parallel.
4-Alternate interior angles are congruent.
A car is traveling at a speed of 45 kilometers per hour. What is the car's speed in kilometers per minute? How many kilometers will the car travel in 10 minutes?
Answer:
40 7.5 Km in 10 minutes
Step-by-step explanation:
An employee working for a local seafood company is delivering fresh Maryland seafood to nearby states. After 2 hours of driving, the truck has traveled 128 miles. After 3.5 hours of driving, the truck arrives at its first destination, 203 miles from home. What is the average rate of change, in miles per hour, for this trip?
Answer:
58 miles per hour
Step-by-step explanation:
Given that :
Miles traveled after 2 hours = 128 miles
Miles traveled After 3.5 hours = 203 miles
Average rate of change in miles per hour :
Total miles driven / total time taken
The average rate of change in miles per hour :
203 miles / 3.5 hours
58 miles per hour
Philip buys a pack of markers for $1.29, a pencil for $0.84, and an eraser for $0.79. How much does he spend altogether
Answer:
Not sure what you are looking for but... I believe the answer is $2.92
Step-by-step explanation:
Profit is revenue minus expenses. If your profit is $3,000 and your revenue is $50,000, what are your expenses?
a) $45,000
b) $46,000
c) $47,000
d) $48,000
The expenses with the given profit and revenue is $47,000. Therefore, option C is the correct answer.
Given that, the profit is $3,000 and the revenue is $50,000.
What is gain or profit?The profit or gain is equal to the selling price minus the cost price. Loss is equal to the cost price minus the selling price.
Here, Profit = Revenue - Expenses
3000 = 50000 - Expenses
⇒ Expenses = 50000-3000
= 47000
The expenses with the given profit and revenue is $47,000. Therefore, option C is the correct answer.
To learn more about the gain visit:
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A city has a population of 310,000 people. Suppose that each year the population grows by 7%. What will the population be after 15 years?
Suppose a stock drops in value by 60% one week, then increases in value the next week by 75%. Is the value higher or lower than where it started
Answer:
Lower
Step-by-step explanation:
Use the number 100 to see how the value changes:
First, calculate the 60% drop:
100(0.4)
= 40
Then, calculate the 75% increase:
40(1.75)
= 70
So, since 70 is smaller than 100, the value is lower than where it started.
Hi please help! Please and thank you
Answer: 1. [tex]\frac{19}{18}=n[/tex]
2. x=4
Step-by-step explanation:
[tex]\frac{11}{6}-\frac{7}{9}=n[/tex] First, you have to subtract [tex]\frac{7}{9}[/tex] from both sides to have n by its self.
[tex]\frac{33}{18}-\frac{14}{18}=n[/tex] Then find the common denominator. And subtract it
[tex]\frac{19}{18}=n[/tex]
6.2-2.2=x Subtract 2.2 from both sides to have x by its self.
4=x
Please help me with this, I only have a few more questions and I'll be posting them on my page for help
Answer:
B) 450
Step-by-step explanation:
You use the greater amount minus the lesser amount, times 30 minutes.
55-40=15
15 x 30=150
Hope I helped!
x^2-9x=-2 quadratic equation
Answer:
Step-by-step explanation:
x^2-9x=-2 move the -2 over and set to 0
x^2-9x+2=0
This can not be factored, so use the quadratic formula.
x=9±√73 /2
Answer:
x = 9 + sqrt(73) / 2
x = 9 - sqrt(73) / 2
Step-by-step explanation:
Assuming you want to factor and find its roots:
[Put all the terms in the left hand size]
x^2-9x+2=0
[Use the quadratic formula; Not factorable and too tedious for completing the square]
x = -b +- sqrt(b^2-4ac) / 2a
x = 9 + sqrt(9^2 - 4(1)(2)) / 2(1)
x = 9 - sqrt(9^2 - 4(1)(2)) / 2(1)
x = 9 + sqrt(73) / 2
x = 9 - sqrt(73) / 2
What is difference between simple and compound interest
Answer:
Simple interest is calculated on the principal, or original, amount of a loan. Compound interest is calculated on the principal amount and also on the accumulated interest of previous periods, and can thus be regarded as "interest on interest."
Use the distributive property to remove the parentheses.
9(6-v)
Answer:
[tex]54-9v[/tex]
Step-by-step explanation:
To remove the parentheses by using the distributive law, we need to multiply [tex]9[/tex] to each term within the parentheses.
[tex]9(6-v) = 9(6) +9(-v)[/tex]
[tex]=54-9v[/tex]
Hope this helps :)
Two parallel lines are cut by a transversal as shown below.
Suppose
Answer:
m < 2 = 36
m < 3 = 148
Step-by-step explanation:
180 - 148 = 32
The measure of <2=32 and <3=148
What is are parallel lines?Parallel lines are lines in a plane that are always the same distance apart. Parallel lines never intersect.
Given:
m<5 = 148
As, by alternate interior angle
m<5 = m<3
So, m<3 = 148
Also, <2 and <3 forms a linear pair.
So,
m<2 + M<3 = 180
148 + m<2 = 180
m<2 = 32
Hence, the measure of <2 = 32 and <3 = 148.
Learn more about parallel lines here:
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Explain this to me please.
Answer:
f(x + 3) = x² + 3x - 2
General Formulas and Concepts:
Order of Operations: BPEMDASExpand by FOIL (First Outside Inside Last)Step-by-step explanation:
Step 1: Define
f(x) = x² - 3x - 2
f(x + 3) is x = x + 3
Step 2: Find
Substitute: f(x + 3) = (x + 3)² - 3(x + 3) - 2Expand by FOILing: f(x + 3) = x² + 6x + 9 - 3(x + 3) - 2Distribute 3: f(x + 3) = x² + 6x + 9 - 3x - 9 - 2Combine like terms: f(x + 3) = x² + 3x - 2to pass the test you must score at least 60 on the test. what is the inequality
Answer:
x ≥ 60
Step-by-step explanation:
greater than or equal to 60
2. When solving the equation 5x-3 = 5, MaReeco rewrote the equation as 5x=2 MaReeco perform an acceptable move to this equation? Why or why not?
Answer:
MaReeco performed an inacceptable move.
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS Equality PropertiesStep-by-step explanation:
Step 1: Define
5x - 3 = 5
Step 2: Solve for x
Add 3 to both sides: 5x = 8We need to add 3 to both sides of the equation to isolate the x term and to equalize the equation.
this answer should be solved as z= or solve for z and don't put m= or solve for m, only solve for z
Answer: z=mn/m–n.
Step-by-step explanation: solve the rational equations by combining the expressions and isolating the variable of Z.
tell whether the transformation appears to be a rigid motion. explain
Answer:
If you turn it or flip it over or move it it is essentially the same shape. If you try to stretch the paper or fold it you change what the shape is so it is not a rigid motion. Since the two circles are not the same size then it is not a rigid motion
