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ioda
3 years ago
14

The radius of a circular rug is 4 feet. How much ribbing will you need to buy to go around the rug? Use 3 14.

Mathematics
1 answer:
alexira [117]3 years ago
5 0

Answer:

100.48 feet

Step-by-step explanation:

The circumfrence of a circle is represented in the equation C=2\pi r^{2}

So we input the values into the equation C=2(3.14)(4)^2 which when entered into a calculator gives you 100.48feet

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it takes Maya 30 minutes to solve 5 logic puzzles, and it takes Amy 28 minutes to solve 4 logic puzzles. use models to show the
7nadin3 [17]

Answer:

Maya ---> 6\ minutes/puzzle

Amy ----> 7\ minutes/puzzle

see the procedure

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form k=\frac{y}{x} or y=kx

Let

m ---> the number of minutes

p ---> the number of puzzles

In this problem, the relationship between the variables m and p represent a proportional variation

so

m=kp

Maya

it takes Maya 30 minutes to solve 5 logic puzzles

we have

m=30, p=5

Determine the value of the constant of proportionality k

k=\frac{m}{p}

substitute the given values

k=\frac{30}{5}=6\ minutes/puzzle

The value of the constant k is the same that the slope or unit rate

The equation is equal to

m=6p

Amy

it takes Maya 28 minutes to solve 4 logic puzzles

we have

m=28, p=4

Determine the value of the constant of proportionality k

k=\frac{m}{p}

substitute the given values

k=\frac{28}{4}=7\ minutes/puzzle

The value of the constant k is the same that the slope or unit rate

The equation is equal to

m=7p

8 0
3 years ago
A polynomial has been factored, as shown below:
ololo11 [35]
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Answer:

-6n + 8

Step-by-step explanation:

-8n + 2n = -6n

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Hope this helps :)

4 0
3 years ago
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How do you simplify 4^-2h^-4j^3
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4^2 h^4

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Find the product: -4/7 (- 13/2)
emmasim [6.3K]

Answer:

the answer is 3.71

Step-by-step explanation:

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