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Blababa [14]
3 years ago
12

Select the correct answer. What is the inverse of function f?

Mathematics
1 answer:
zubka84 [21]3 years ago
7 0
the correct answer is b and a
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A training field is formed by joining a rectangle and two semicircles, as shown below. The rectangle is 86m long and 64m wide. F
KIM [24]

To solve this problem, we have to find the area of the semi circles and the area of the rectangle and add them up together.

The area of the field is equal to 8719.36m^2

<h3>Area of the Field</h3>

Let us start by finding the area of the rectangle.

Data;

  • width = 86m
  • length = 64m

Area of a rectangle is given as

a = length * width \\a = 86 * 64\\a = 5504m^2\\

The area of the rectangle is 5504m^2

Area of the semicircle

The formula of a semi circle is given as

A = \frac{1}{2} \pi r^2

But since we have two semi circles here, we can simply multiply it by two and the formula becomes

A = 2 * \frac{1}{2} \pi r^2\\A = \pi r^2

But in the question, we have the diameter of the semi circle as the length of the rectangle.

radius = \frac{diameter}{2} \\radius = \frac{64}{2} \\radius = 32m

The radius of the semicircle is 32m

Area of the semicircle is

A = \pi r^2\\A = 3.14 * 32^2\\A = 3215.36m^2

The area of the field is

area of field = 3215.36 + 5504\\area = 8719.36m^2

The area of the field is equal to 8719.36m^2

Learn more on area of rectangle and semi circle here;

brainly.com/question/2906652

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7 0
2 years ago
What is 10x4= i don't know it pls help
saw5 [17]

Answer: 40

Step-by-step explanation:

10 + 10 + 10 + 10 = 40

4 0
3 years ago
Read 2 more answers
The roof of a barn rises vertically 2.5 meters through the horizontal distance of 10 meters. What is the pitch (slope) of the ro
Lesechka [4]

Answer:

The pitch (slope) of the roof is 0.25  or 25\%

Step-by-step explanation:

we know that

The formula to calculate the slope  is equal to

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

where

In this problem we have

{y2-y1}=2.5\ m  -----> is the vertical distance (rises)

{x2-x1}=10\ m   -----> is the horizontal distance (run)

substitute the values

m=\frac{2.5}{10}=0.25

convert to percentage form

0.25*100=25\%

6 0
3 years ago
If the length of each side of a cuboid decreases by 20%, find the percentage decrease in its volume.
just olya [345]

Answer:

Step-by-step explanation:

(1+25 /100) (1-20/100) (1-50/100)  <1

5/4 x 4/5 x 1/2 <1

Decrease in volume (in percent)

(1+25 /100) (1-20/100) (1-50/100)  x 100

=48.8%

6 0
2 years ago
Can I know the answer I'm so confused
77julia77 [94]
You didn't post a question.
3 0
3 years ago
Read 2 more answers
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