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4 years ago

How much canvas is needed to cover the bottom of a tent if the center pole is 7ft from the edge?

Mathematics

1 answer:

juin [17]4 years ago

8 0

The area (A) of a circle with radius r is given by

... A = π·r²

For a radius of 7 ft, the area is

... A = π·(7 ft)² = 49π ft² ≈ 154 ft²

The area of the bottom of a circular tent with radius 7 ft is about 154 ft².

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What do u think which is more Simple Interest or Compound Interest?

ArbitrLikvidat [17]

Answer:

When it comes to investing, compound interest is better since it allows funds to grow at a faster rate than they would in an account with a simple interest rate.

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2 years ago

Walter’s sink can hold 12 gallons of water. If it is 85% full, how many gallons of water are in the sink?

katen-ka-za [31]

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10.2 gallons

Step-by-step explanation:

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3 years ago

If f(x) and f⁻¹(x) are inverse functions of each other and f(x)=2x+5, what is f⁻¹(8)?

dexar [7]

Answer:

3/2.

Step-by-step explanation:

f(x)=2x+5 Finding the inverse:

y = 2x + 5

2x = y - 5

x = (y - 5)/2

So the inverse f-1(x) = (x - 5)/2

and f-1(8) = (8-5)/2

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3 years ago

Jane has a pre-paid cell phone with Splint. She can't remember the exact costs, but her plan has a monthly fee and a charge for

yan [13]

Answer:

The costs of the plan are $0.15 per minute and a monthly fee of $39

Step-by-step explanation:

Let

x ----> the number of minutes used

y ----> is the total cost

step 1

Find the slope of the linear equation

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have the ordered pairs

(100,54) and (660, 138)

substitute

$m=\frac{138-54}{660-100}$

$m=\frac{84}{560}=\$0.15\ per\ minute$

step 2

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=0.15\\point\ (100,54)$

substitute

$y-54=0.15(x-100)$

step 3

Convert to slope intercept form

Isolate the variable y

$y-54=0.15x-15\\y=0.15x-15+54\\y=0.15x+39$

therefore

The costs of the plan are $0.15 per minute and a monthly fee of $39

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3 years ago

marcy guessed the number of hershey kisses in the school jar. since she guessed correctly, she got to keep all of the candy. she

zaharov [31]

Answer:

118.............................

6 0

3 years ago