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2 years ago

If you can mow 1000 square feet per minute, how long to mow a circle with diameter of 800 feet?

Mathematics

1 answer:

maria [59]2 years ago

3 0

Answer:

You can calculate the area of the circle

We know the formula is: $\pi*r^2$

And if diammeter is 800, then the radio is a half: 400

We replace:

$\pi*r^2 --> \pi * 400^2$ $\approx 502654.8$ feet

So now we can divide:

502654/1000 = 502,654 minutes

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Which statement describes the end behavior of the exponential function f(x)=2^x-3

notsponge [240]

I believe it's A. Hope it helps :)

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2 years ago

Help asap will give brainliest!!!!

GarryVolchara [31]

Answer:

Step-by-step explanation:

ley y = f(x) and rearrange making x the subject

y = $\frac{1}{x+5}$ - 1 ( add 1 to both sides )

y + 1 = $\frac{1}{x+5}$ ( multiply both sides by (x + 5)

(y + 1)(x + 5) = 1 ← expand factors using FOIL

xy + 5y + x + 5 = 1 , that is

xy + x + 5y + 5 = 1 ( factor first/second and third/fourth terms on left side )

x(y + 1) + 5(y + 1) = 1 ← factor out (y + 1) from each term on left side

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x = $\frac{1}{y+1}$ - 5

Change y back into terms of x with x = $f^{-1}$ (x) , then

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2 years ago

What is 6.974 rounded to the nearest tenth

zloy xaker [14]

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2 years ago

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A right prism has height 7½ and triangular bases with sides of length 5, 12, and 13 What is the: Total Surface Area of the Prism

sdas [7]

Given:

A right prism has height 7½ and triangular bases with sides of length 5, 12, and 13.

To find:

The total surface area of the prism.

Solution:

We have,

Height of prism = 7½ = 7.5

Sides of triangular base are 5, 12, 13. These sides of Pythagorean triplets because

$5^2+12^2=13^2$

$25+144=169$

$169=169$

So, the base of the prism is a right triangle.

Area of a triangle is

$Area=\dfrac{1}{2}\times base \times height$

$A_1=\dfrac{1}{2}\times 5\times 12$

$A_1=30$

The area of the base is equal to the area of the top, i.e., $A_2=30$ sq units.

Perimeter of the base is

$P=5+12+13$

$P=30$

The curved surface area of the prism is

$CSA=\text{Perimeter of the base}\times \text{Height of the prism}$

$CSA=30\times 7.5$

$CSA=225$

Now, the total area of the prism is

$A=A_1+A_2+CSA$

$A=30+30+225$

$A=285$

Therefore, the total surface area of the triangular prism is 285 square units.

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2 years ago

The answer to the problem

ser-zykov [4K]

Answer:

580

Step-by-step explanation:

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2 years ago

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