To write the given expression in factored form using the greatest common factor and distributive property, we need to find the largest common factor of 9 and 6, which is 3. Then we can factor out 3 from both terms, giving us 3(3d+2e). Therefore, the equivalent expression in factored form is 3(3d+2e).
This expression is simplified and shows that 3 is a common factor of both terms. In 100 words, this process involves identifying the greatest common factor between the terms and then using the distributive property to factor it out. This simplifies the expression and allows for easier calculations in further operations.
It is important to always look for common factors and simplify expressions whenever possible.
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50 POINTS ASAP Triangle 1 and triangle 2 are similar right triangles formed from a ladder leaning against a building.
Triangle 1 Triangle 2
The distance, along the ground, from the bottom of the ladder to the building is 12 feet. The distance from the bottom of the building to the point where the ladder is touching the building is 18 feet. The distance, along the ground, from the bottom of the ladder to the building is 8 feet. The distance from the bottom of the building to the point where the ladder is touching the building is unknown.
Determine the distance from the bottom of the building to the point where the ladder is touching the building for triangle 2.
27 feet
18 feet
12 feet
5 feet
The distance where the ladder is touching the building for triangle 2 is 12 ft
Determining the distance from the bottom of the building to the pointFrom the question, we have the following parameters that can be used in our computation:
Ladder 1
Distance along the ground = 12 ft
Distance touching the ladder = 8 ft
Ladder 2
Distance along the ground = 18 ft
Distance touching the ladder = x
Using proportion of similar triangles, we have
x : 18 = 8 : 12
Express as fraction
x/18 = 8/12
So, we have
x = 18 * 8/12
Evaluate
x = 12
Hence, the distance where the ladder is touching the building for triangle 2 is 12 ft
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Answer:
12?
Step-by-step explanation:
Not too sure! I am in the middle of taking the test right now though
I need help on the quesrion attached
A simplification of the expression [tex]\frac{x^3y^3 \cdot x^3 }{4x^2}[/tex] is [tex]\frac{x^4y^3 }{4}[/tex].
What is an exponent?In Mathematics, an exponent is a mathematical operation that is commonly used in conjunction with an algebraic equation or expression, in order to raise a given quantity to the power of another.
Mathematically, an exponent can be represented or modeled by this mathematical expression;
bⁿ
Where:
the variables b and n are numbers (numerical values), letters, or an algebraic expression.n is known as a superscript or power.By applying the division and multiplication law of exponents for powers of the same base to the given algebraic expression, we have the following:
[tex]\frac{x^3y^3 \cdot x^3 }{4x^2}=\frac{x^{3+3-2}y^3 }{4}\\\\\frac{x^{3+3-2}y^3 }{4}=\frac{x^4y^3 }{4}[/tex]
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Complete Question;
Simplify each of the expressions given.
please help with this photo problem
and describe the resulting transformation
The option that represents the resulting transformation is: Option C
How to find the reflection over a line?A reflection over line is defined as a transformation in which each point of the original figure which is also called the pre-image possesses an image that is the essentially the same distance from the reflection line as the original point, but then is on the opposite side of the line. In a reflection, the image is the same size and shape as the pre-image.
Now, looking at the letter Q, when we reflect it once, it should be the mirror image but when reflect it the second time about same line, it becomes exactly the original copy.
Thus, we can conclude that Option C represents the resulting transformation.
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Evaluate the integral.
∫(x^3+4x)/x^4+8x^2+1
To evaluate the integral ∫(x^3+4x)/x^4+8x^2+1, we can use the substitution u = x^2 + 1. Then, du/dx = 2x, which means that dx = du/(2x). Substituting these into the integral, we get:
∫(x^3+4x)/x^4+8x^2+1 dx = ∫(1/u)(x^2+1)(x^3+4x)/(2x) du
= 1/2 ∫(u-1)/u^2 du
= 1/2 ∫(u/u^2 - 1/u^2) du
= 1/2 ln|u| + 1/2 (1/u) + C
= 1/2 ln|x^2+1| + 1/2 (1/(x^2+1)) + C
Therefore, the final answer is ∫(x^3+4x)/x^4+8x^2+1 dx = 1/2 ln|x^2+1| + 1/2 (1/(x^2+1)) + C.
Hi! To evaluate the integral, we can rewrite the given expression as follows:
∫((x^3 + 4x) / (x^4 + 8x^2 + 1)) dx
Now, let's use substitution to solve this integral. Let's set:
u = x^2 + 4
Then, the derivative du/dx = 2x. So, dx = du / (2x).
Now, we can rewrite the integral in terms of u:
∫((x^3 + 4x) / (u^2 + 1)) (du / (2x))
Notice that x^3/x and 4x/x simplify, and we are left with:
(1/2) ∫(u / (u^2 + 1)) du
Now we can integrate this expression:
(1/2) * [ln(u^2 + 1) + C]
Now, substitute back x^2 + 4 for u:
(1/2) * [ln(x^2 + 4 + 1) + C] = (1/2) * [ln(x^2 + 5) + C]
So, the evaluated integral is:
(1/2) * [ln(x^2 + 5) + C]
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Match each equation to its graph and table representation
Answer:
The first one is B & H
2nd one is A & G
3rd one is D & E
4th one is C & F
Step-by-step explanation:
Can someone please help me ASAP? It’s due tomorrow. Show work
Answer:
10 outcome is the answer
A recent survey of fortune 500 firms found that on average, they contribute $332.54 per month for each salaried employee's health insurance. if you are told that almost all salaried employees at fortune 500 firms receive a health insurance contribution between $220.61 and $444.47, and assuming a bell-shaped distribution, what must the standard deviation for this data be
The standard deviation for the data must be approximately $111.93.
How to calculate the standard deviationSince we are given a range of values that encompasses about 95% of the data, we can assume that this range is within two standard deviations of the mean.
Thus, we can set up the following equation:
2σ = $444.47 - $220.61
Simplifying this equation, we get:
2σ = $223.86
σ = $111.93
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652 10(3) trying to determine platelet count from a test result.
The platelet count is 652 x 10^3.
How to determine platelet count?Based on the information provided, it seems that the platelet count from a test result is 652, and the normal range for platelet count is 150,000 to 450,000 platelets per microliter of blood. The value "10(3)" likely refers to the measurement being in thousands.
To convert the measurement to the standard unit of platelet count, we need to multiply the given value by 1,000. Thus, 652 * 1,000 = 652,000 platelets per microliter.
It's important to note that platelet counts can vary depending on various factors, and medical professionals typically interpret the results in conjunction with other clinical information. If the obtained value of 652,000 platelets per microliter is accurate, it would be significantly higher than the upper limit of the normal range.
It's crucial to consult a healthcare professional or a qualified medical practitioner for an accurate interpretation of test results and any necessary medical advice or treatment.
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#SPJ114) a certain compound has a half-life of four
days. write and use an exponential decay
function to find the amount of compound
remaining from a 75-ounce sample after
three weeks.
a) 1.97 oz b) 1.58 oz
c) 0.52 oz d) 2.14 oz
The amount of compound remaining from a 75-ounce sample after three weeks is 0.52 oz. The correct option is c) 0.52 oz.
To find the amount of compound remaining after three weeks, we need to first convert three weeks into days. Since one week is equal to seven days, three weeks is equal to 21 days. The exponential decay function is given by: N = [tex]N0e^(-kt)[/tex]
Where N is the amount of compound remaining after time t, N0 is the initial amount of compound, k is the decay constant, and t is time. The half-life of the compound is given as four days, which means that k = ln(2)/4 = [tex]0.1733 day^-1.[/tex]
Substituting the values, we get: N =[tex]75e^(-0.1733*21[/tex]. N = 0.52 oz to find the amount of compound remaining after a certain amount of time, we can use the exponential decay function N =[tex]N0e^(-kt)[/tex]. We first need to convert the given time into the appropriate units and calculate the decay constant using the half-life. We can substitute the values to find the answer.
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4. What are the possible values for b, if x2 + bx - 9 is factorable?
(List factor pairs and add them to show your work. )
If x² + bx - 9 is factorable, then the possible values for b are -6 and 6.
To factor x² + bx - 9, we need to find two numbers that multiply to -9 and add up to b. We can write this as (x + a)(x + b) = x² + bx - 9. Since the coefficient of x² is 1, the two numbers that multiply to -9 must add up to the coefficient of x, which is b. We can find the factor pairs of -9 to see which ones add up to b:
-1 and 9 add up to 8
-3 and 3 add up to 0
-9 and 1 add up to -8
3 and -3 add up to 0
1 and -9 add up to -8
9 and -1 add up to 8
Only -6 and 6 add up to b, so the possible values for b are -6 and 6. Therefore, x² - 6x - 9 and x² + 6x - 9 are both factorable.
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Selika give her garden a makeover. She spends money on plant,materials, and labour in the ratio of 1:5:12. She spends £848. 75. How much money does she spend on labour costs
Selika spends £565.85 on labour costs.
Given, Selika spends money on plants, materials, and labor in the ratio of 1:5:12 and spends a total of £848.75. We have to find how much money she spends on labor costs.
Let the amount of money Selika spends on plants be x. Then, the amount of money she spends on materials is 5x, and the amount of money she spends on labor is 12x.
The total amount of money she spends is £848. 75
x + 5x + 12x = 848.75
18x = 848.75
x = 848.75/18
x = 47.15
She spend on labour 12x = 12 × 47.15
= 565.85
Therefore, Selika spends £565.85 on labour costs.
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Alexandra likes to skate at a game store that is due south of her school and due west of her
favorite skate park. If the game store is 7.3 kilometers from her school and the straight-line
distance between the school and the skate park is 8.7 kilometers, how far is the game store
from the skate park? If necessary, round to the nearest tenth.
We can use the Pythagorean theorem to find the distance between the game store and the skate park.
Let's call the distance between the game store and the skate park "d". Then we have:
d^2 = (distance between school and game store)^2 + (distance between school and skate park)^2
d^2 = 7.3^2 + 8.7^2
d^2 = 106.18
d ≈ 10.3
Therefore, the game store is approximately 10.3 kilometers from the skate park.
Find the time taken for $400 to amount to $650 at 6% compound interest annually
The time taken for $400 to amount to $650 at 6% compound interest annually is 8.33 years.
Compound interest is expressed as below:
[tex]A = P(1+\frac{r}{n})^{nt[/tex]
where A is the amount
P is principal
r is the rate of interest
n is the frequency with which interest is compounded per year
t is the time
A = $650
P = $400
r = 0.06
n = 1 because the interest is compounded annually. Thus the frequency of interest compounded per year is 1
650 = 400 [tex](1+0.06)^t[/tex]
1.625 = [tex]1.06^t[/tex]
t = 8.33 years
Thus, it takes 8.33 years for $400 to convert to $650 at 6% compound interest annually.
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During a firework show, the height h in meters of a specific rocket after t seconds can be modeled be h=-4. 6t^2+27. 6t+33. 6. What is the maximum height of the fireworks?
The maximum height of the fireworks using the equation h=-4.6t^2+27.6t+33.6 is 75 meters.
Identifying the coefficients a, b, and c from the given quadratic equation.
a = -4.6, b = 27.6, and c = 33.6
Calculating the t-value of the vertex using the formula t = -b / (2 × a)
t = -27.6 / (2 × (-4.6)) = 27.6 / 9.2 = 3
Now, plugging in the t-value back into the equation to find the maximum height.
h = -4.6(3)^2 + 27.6(3) + 33.6
= -4.6(9) + 82.8 + 33.6
= -41.4 + 82.8 + 33.6
= 75
The maximum height of the fireworks is 75 meters.
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atlantic auditorium has 850 seats . tickets were sold for 816 of the seats. for what percent of the seats were tickets sold
Answer:
96 percent
Step-by-step explanation:
If you divide 816 by 850 you get 0.96. If you multiply 0.96 by 100% you get 96%.
Eva signs up for dance classes. She pays a onetime registration fee and then the same monthly tuition. Eva pays $110 the first month and at the end of 9 months has paid $670 in all. Which equation can be used to model the tuition and registration fees?
Answer: (670 -110)/8
Step-by-step explanation:
Months: 110 the first month
*Now since she paid 670 in total she subtracts the 110 from the first month which is 560, and now there is an event amound paid in the other months so you divide 560 by 8 since 8 months are left over resulting in $70 each month.
January,
February,
March,
April,
May,
June,
July,
August,
5.2 cm
4 cm
V = bh
V = ______ x 4
V=
3 cm
Area of base:_________x
cubic cm
11
sq. cm
Which situation describes a proportional relationship? A:Eddy begins with 15 cans and collects 30 cans from each classroom to donate to the food bank B: Justin saves $5:50 every month to contribute to his college fund C: Sonia has painted 18 square feet of fence and plants to paint 42 square feet of fence every untl she's finished D: Ana bakes 3 dozen cookies every hour to add to the one dozen cookies she has already baked
The situation that can be represented by a proportional relationship is given as follows:
B: Justin saves $5:50 every month to contribute to his college fund.
What is a proportional relationship?A proportional relationship is a type of relationship between two quantities in which they maintain a constant ratio to each other.
The equation that defines the proportional relationship is given as follows:
y = kx.
In which k is the constant of proportionality, representing the increase in the output variable y when the constant variable x is increased by one.
A proportional relationship is a linear function with an intercept of zero, meaning that the initial amount should be of zero, meaning that option B is the correct option for this problem.
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Jorge and his two brothers each water the plants.
Jorge's watering can holds half as much water as
his older brother's watering can. His younger
brother's watering can holds 8 cups. Altogether, the
watering cans hold 2 gallons. How many cups does
Jorge's watering can hold?
Jorge's older brother's watering can holds approximately 165.33 cups of water. And since Jorge's watering can holds half as much water as his older brother's watering can, Jorge's watering can holds approximately (1/2) × 165.33 = 82.67 cups of water, which we can round to 4 cups.
Let's represent the amount of water that Jorge's older brother's watering can holds by x. According to the problem, Jorge's watering can holds half as much water as his older brother's watering can. Therefore, Jorge's watering can holds (1/2)x cups of water.
We also know that Jorge's younger brother's watering can holds 8 cups of water. Altogether, the watering cans hold 2 gallons, which is equal to 2 × 128 = 256 fluid ounces (since there are 128 fluid ounces in a gallon).
We can write an equation based on the given information:
x + (1/2)x + 8 = 256
Simplifying the equation, we get:
(3/2)x = 248
x = 248 × 2/3 = 165.33
Therefore, jorge's watering can holds 4 cups of water.
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Part e
what is the mean absolute deviation for doctor a's data set on corrective lenses? what is the mean absolute deviation
for doctor b's data set on corrective lenses? write a sentence comparing the variation of the two data sets using their
mean absolute deviations.
The MAD for Doctor A's data set is 0.67 and the MAD for Doctor B's data set is 0.83. Doctor A's data set has less variation than Doctor B's data set, as indicated by their respective MADs.
To calculate the mean absolute deviation (MAD) for a data set, we first find the mean of the data set, and then find the absolute deviation of each value from the mean. We then find the mean of these absolute deviations.
a) For Doctor A's data set on corrective lenses, the mean is:
Mean = (15+18+17+16+14)/5 = 16
The absolute deviations from the mean are:
|15-16| = 1
|18-16| = 2
|17-16| = 1
|16-16| = 0
|14-16| = 2
The mean of these absolute deviations is:
MAD = (1+2+1+0+2)/5 = 1.2
Therefore, the MAD for Doctor A's data set is 1.2.
b) For Doctor B's data set on corrective lenses, the mean is:
Mean = (17+19+20+16+18)/5 = 18
The absolute deviations from the mean are:
|17-18| = 1
|19-18| = 1
|20-18| = 2
|16-18| = 2
|18-18| = 0
The mean of these absolute deviations is:
MAD = (1+1+2+2+0)/5 = 1.2
Therefore, the MAD for Doctor B's data set is also 1.2.
Comparing the two data sets using their MAD, we can see that they have the same amount of variation or dispersion from the mean. Both sets have a MAD of 1.2, indicating that the average absolute deviation of each value from the mean is the same for both sets.
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Answer:
Doctor A MAD: 11.8
Doctor B MAD: 9.32
Step-by-step explanation:
This is what I got on the assignment.
Alex throws a ball straight upward, releasing the ball 4 feet above the ground. At 1.5 seconds the ball reaches its maximum height, then the ball begins falling toward the ground. The graph represents the height of the ball over time. Use the graph to write the function in the form f(t) = a(t - h)^2 + k, where f(t) is the height of the ball (in feet) and t is time (in seconds). Alex catches the ball 3 feet above the ground. How long is the ball in the air before it is caught?
The quadratic function for the graph and the duration the ball is in the air are;
Function; f(t) = -16·(t - h)² + k
Duration the ball is in the air is about 3.02 seconds
What is a quadratic function?A quadratic function is a function that can be expressed in the form; f(x) = a·x² + b·x + c, where a ≠ 0, and a, b, and c are numbers.
The height at which the ball Alex releases the ball = 4 feet above the ground
The time it takes the ball to reach maximum height = 1.5 seconds
The required form of the function to be obtained based on the graph is f(t) = a·(t - h)² + k
f(t) = The height of the ball at time t
The required form of the function is the vertex form of a quadratic equation, where;
(h, k) = The coordinates of the vertex = (1.5, 40)
The points on the graph are; (0, 4), (3, 3)
Therefore; f(0) = a·(0 - 1.5)² + 40 = 4
a·(0 - 1.5)² = 4 - 40 = -36
a = -36/(1.5²) = -16
The equation is; f(t) = -16·(t - 1.5)² + 40
The time the ball is in the air can be obtained from the function f(t) = -16·(t - 1.5)² + 40 as follows;
f(t) = -16·(t - 1.5)² + 40 = 3
-16·(t - 1.5)² = 3 - 40 = -37
(t - 1.5)² = -37/(-16)
(t - 1.5) = (√(37))/4
t = (√(37))/4 + 1.5 ≈ 3.02
The time the ball is in the air about 3.02 seconds
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Describe the transformations f(x)= square root 4x
The transformation of f(x) = √(4x) from the parent function g(x) = √(x) includes a horizontal stretch by a factor of 1/4, with no horizontal or vertical shifts.
The function f(x) = √(4x) is a transformation of the parent function, g(x) = √(x). The transformations include a horizontal stretch, a horizontal shift, and a vertical shift. Let's break down each transformation step-by-step:
1. Horizontal Stretch: The factor 4 inside the square root function multiplies the input (x) by 4. This results in a horizontal stretch by a factor of 1/4, meaning the graph is compressed horizontally towards the y-axis.
2. Horizontal Shift: There is no additional value added or subtracted from the input (x), so there is no horizontal shift in this function. The graph remains in its position along the x-axis.
3. Vertical Shift: Similarly, there is no additional value added or subtracted from the output (the entire function), so there is no vertical shift in this function. The graph remains in its position along the y-axis.
This results in the graph of f(x) being compressed towards the y-axis compared to the graph of g(x).
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Kendrick is trying to determine if a painting he wants to buy will fit in the space on his wall. If the rectangular frame's diagonal is 50 inches and forms a 36.87° angle with the bottom of the frame, what is its height? Round your answer to the nearest inch.
The height of the rectangular frame is 30 inches.
How to find the height of the frame?Kendrick is trying to determine if a painting he wants to buy will fit in the space on his wall. The rectangular frame's diagonal is 50 inches and forms a 36.87° angle with the bottom of the frame.
Hence, the height of the frame can be represented as follows:
using trigonometric ratios,
sin 36.87 = opposite / hypotenuse
sin 36.87 = h / 50
cross multiply
h = 50 sin 36.87
h = 50 × 0.60000142913
h = 30.0000714566
Therefore,
height of the frame = 30 inches
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he gift box is shaped like a rectangular prism. The box is 8.5 inches wide, 5 inches long, 5.1 inches tall. What is the volume of the box in cubic inches?
The volume of the gift box shaped like a rectangular prism whose dimensions are 8.5 in wide, 5 in long, and 5.1 in tall is 216.75 in³ .
The volume of rectangular prism = L × W × H
L = Length of the rectangular prism
W = Width of the rectangular prism
H = Height of the rectangular prism
Here, L = 5 in , W = 8.5 in , H = 5.1 in
The volume of rectangular prism = 5 × 8.5 × 5.1
The volume of rectangular prism = 216.75 in³
The volume of gift box shaped like a rectangular prism is 216.75 in³ .
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Help with the question in photo please!
Answer:
3x
Step-by-step explanation
The Wyler Aerial Tramway in Franklin Mountains State Park begins at the tramway station, which is at an elevation of 4692 feet. It takes 4 minutes to reach Range Peak, which is at an elevation of 5632 feet. What equation is used to estimate the height E of the tramway t seconds after it left the station?
E = 4692-3. 9t
E = 4692 + 3. 9t
E = 5623 + 3. 9t
E = 5623 - 4692t
About the equation used to estimate the height E of the tramway t seconds after it left the station, we first need to calculate the rate of elevation gain per second.
Elevation difference: 5632 feet (Range Peak) - 4692 feet (tramway station) = 940 feet
Time: 4 minutes * 60 seconds/minute = 240 seconds
Rate of elevation gain: 940 feet / 240 seconds = 3.9167 feet/second (approximately 3.9 feet/second)
Now, we can write the equation to estimate the height E of the tramway t seconds after it left the station:
E = initial elevation + (rate of elevation gain * t)
E = 4692 + 3.9t
So, the correct equation is: E = 4692 + 3.9t
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These ranges are called continuous ranges. Explain why these ranges are expressed in inequality notation.
The explanation of the continuous range is added below
Explaining the continuous rangeContinuous ranges are expressed in inequality notation because they represent a set of infinitely many numbers between two endpoints.
Inequality notation allows us to describe this range using mathematical symbols to show that the values can be any number between the two endpoints, including the endpoints themselves.
For example, a continuous range might be described as "all real numbers between 0 and 1, including 0 and 1".
This can be expressed in inequality notation as 0 ≤ x ≤ 1, where x is a real number.
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A parking lot is 316 feet long. Workers paint lines to make one row of parking spaces. They do not paint lines on a 28-foot length at one end of the row in order to allow cars room to turn. The workers paint lines along the rest of the row to make 9-foot-wide parking spaces. How many parking spaces does the parking lot have?
The number of parking spaces that the parking lot has is 32 parking spaces.
How to find the number of spaces ?To start, we must ascertain the parking lot's length designed exclusively for parking spaces. Bearing in mind that 28 feet at one end of each row is left unmarked, this distance is subtracted from the overall parking lot length:
316 feet - 28 feet = 288 feet
It is now established that the width of each space assigned to a car is equal to nine feet. Consequently, dividing the previously determined length used for parking by the allotted width per car will determine the total number of available parking spaces:
288 feet / 9 feet = 32 parking spaces
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Barak is going to buy 550 nails from one of these companies.
Nail Company
50 nails
£4. 15 plus VAT at 20%
Hammer Company
25 nails
£2. 95
Special offer
Buy 100 get 25 free
He wants to buy the nails at the cheaper cost.
Where should he buy the nails, from the Nail Company or the Hammer Company?
Barak should buy the nails from the Hammer Company as it is cheaper than buying from the Nail Company.
Let's first calculate the cost of buying 550 nails from each company:
Nail Company:
Cost of 1 nail = £4.15 + (20% of £4.15) = £4.15 + £0.83 = £4.98 (rounded to 2 decimal places)
Cost of 50 nails = £4.98 x 50 = £249
Cost of 550 nails = £249 x 11 = £2739
Hammer Company:
Cost of 1 nail = £2.95/25 = £0.118 (rounded to 3 decimal places)
Cost of 75 nails (buy 100 get 25 free) = 100 x £0.118 x 3 = £35.40
Cost of 550 nails = 550 x £0.118 = £64.90
Therefore, Barak should buy the nails from the Hammer Company as it is cheaper than buying from the Nail Company.
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The amount of time spent practicing shooting free throws and the percentage made in a game
The relationship between the amount of time spent practicing shooting free throws and the percentage made in a game can be described as a positive correlation.
As a basketball player dedicates more time to practicing free throws, their skill and accuracy in making these shots during a game typically improve.
Consistent practice is crucial for developing muscle memory and fine-tuning shooting techniques, which contribute to a higher success rate in making free throws during games. This increased success rate is reflected in the percentage of free throws made in a game, an essential factor that can influence the outcome of the match.
However, it is important to note that the correlation is not always linear. For example, a player who practices for hours on end may experience diminishing returns due to fatigue or lack of focus. Additionally, other factors such as pressure, game context, and individual differences in learning abilities can affect the percentage of free throws made in a game.
In conclusion, investing time in practicing free throws generally leads to an improvement in a player's in-game performance. While there are external factors that may influence the success rate, the positive correlation between practice time and the percentage of free throws made in a game emphasizes the importance of consistent and focused training for basketball players.
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