3 years ago

Does anyone know this?

Mathematics

1 answer:

Dmitriy789 [7]3 years ago

5 0

Find the area of the triangle which is 1/2 x 9 x 9 = 40.5 sq ft.

The area of the shaded part would then be 20.25π - 40.5 sq. ft.

The last choice is correct.

You might be interested in

Two prisms are similar and their ratio of similarity is 3:8.

trapecia [35]

Answer:

8.63 square units

Step-by-step explanation:

you must set up a proportion.

3 x

- = -

8 23

after you set up that proportion, cross multiply to find x.

8x = 69

divide by 8

x = 8.625, rounded to 8.63

5 0

3 years ago

The figure to the right has its congruent segments marked. Find the measure of AB.

Vaselesa [24]

Answer:

the measure of AB =29 meters

5 0

3 years ago

-7 + 2x = -45 a 1 b -19 c 11 d -16

Marina86 [1]

Answer:

B) -19

Step-by-step explanation:

-7 + 2x = -45

+7 +7

2x = -38

/2 /2

x = -19

7 0

3 years ago

Read 2 more answers

Samara has an assignment to conduct a survey. She wants to find out what students like to do after school. She asks the first 10

Sliva [168]

C: Because she doesn't choose certain people

7 0

4 years ago

Read 2 more answers

I am trying to figure this question: 1 + tan^2A = Sec^2A

chubhunter [2.5K]

Answer:

see explanation

Step-by-step explanation:

Using the Pythagorean identity

cos²A + sin²A = 1 ( divide terms by cos²A )

$\frac{cos^2A}{cos^2A}$ + $\frac{sin^2A}{cos^2A}$ = $\frac{1}{cos^2A}$ , that is

1 + tan²A = sec²A ← as required

3 0

3 years ago