MATHEMATICS HIGH SCHOOL

Natalie wants to buy a shirt that costs $24. It is on sale for 20% off the original price. How much does she pay for the shirt? $19.20 $21.60 $26.00 $28.80

Answers

Answer 1
Answer:

Answer:

She pays $19.20

Step-by-step explanation:

Given,

The cost price of the shirt = $ 24,

There is a 20% off,

So, the selling price of the shirt = cost price - 20% of cost price

=24-20\%\text{ of }24

=24-(20* 24)/(100)

=24-(480)/(100)

=24-4.8

=\$ 19.2
Answer 2
Answer: 24*.2=4.8
24-4.8=         $ 19.20

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A scientist is trying to determine the relationship between clams, snails, and squid. When she generates a molecular clock, she is surprised to see that clams and squid are more closely related than clams and snails. Which did the molecular clock data show?

Answers

Molecular clocks use the rate of mutation for biomolecules to work out when two life forms diverged during their development. If the molecular clock shows clams are more closely related to squid than snails, this suggests that the divergence between clams and squid occurred more recently in prehistory than the divergence of clams and snails.

Answer:

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39 out of 40 as a percent

Answers

It would be: 39/40 * 100 = 3900/40 = 97.5%

You will need 120 feet of fencing to put all the way around a rectangular garden. the length of the garden is 40 feet. what is the width?

Answers

Perimeter = 2L + 2w = 120

Plug in L = 40

2(40) + 2w = 120

Solve for w

2w = 120 - 80 = 40

w = 20

Write an equation that is parallel to 3x- 2y = 14 and passes through the point (-6, -11).

Answers

Answer:

Y=3/2x-2

Step-by-step explanation:

turn 3x-2y=14 into slope equation which would be y=3/2x-7 and. Since it's a parallel line u only need to change the y intercept do if u put it on a graph, the equation would be y=3/2x-2 bc it goes through the point (-6,-11) and is also parallel to the standard equation given.

Calculate f(4) for each function below

Answers

The question is about Evaluating Functions and to calculate f(4) for each function, we substitute 4 into the function and simplify. The values of f(4) for the given functions are: a) 16, b) 12, c) 5.6569, d) 0, e) 8, f) 44y.

Evaluating functions involves determining the output (or value) of a mathematical function for a given input (or argument). It's done by substituting the input value into the function's equation and solving for the result. In the context of functions like f(x), you replace 'x' with the specific value you want to assess. This process helps analyze how a function behaves, finding its y-value or dependent variable. Evaluating functions is crucial in various fields, such as mathematics, science, and engineering, to understand relationships and make predictions based on input-output mappings.

To calculate f(4) for each function, we substitute 4 into the function and simplify. Let's calculate:

a) f(x) = x2
Substitute 4 into the function:
f(4) = 42 = 16

b) f(x) = √144
Substitute 4 into the function:
f(4) = √144 = 12

c) f(x) = √32
Substitute 4 into the function:
f(4) = √32 ≈ 5.6569

d) f(x) = 3x - 12
Substitute 4 into the function:
f(4) = 3(4) - 12 = 0

e) f(x) = (x - 2)^3
Substitute 4 into the function:
f(4) = (4 - 2)^3 = 8

f) f(x) = 4xy + 7xy
Substitute 4 into the function:
f(4) = 4(4)y + 7(4)y = 16y + 28y = 44y

Learn more about Evaluating Functions here:

brainly.com/question/18543961

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Subtitute x = 4 to the equations:

b)\ f(x)=\left((1)/(5)\right)^x\to f(4)=\left((1)/(5)\right)^4=(1^4)/(5^4)=(1)/(625)\n\nc)\ f(x)=3x-12\to f(4)=3\cdot4-12=12-12=0\n\nd)\ f(x)=(x-2)^3\to f(4)=(4-2)^3=2^3=8

a cereal box can hold 144 cubic inches of cereal. if the box is 8 inches long and 1.5 inches wide how tall is the box?

Answers

The volume of a rectangular prism is simply length * width * height.
Therefore, all we have to do to find the height of the cereal box is divide the volume by the width and the length.

144 / 8 = 18

18 / 1.5 = 12

The cereal box is 12 inches tall.
Hope that helped =)
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