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Sloan [31]
3 years ago
10

Find the circumference and the area of a circle with diameter 7 ft

Mathematics
2 answers:
Blababa [14]3 years ago
8 0
7pi hope I helped please give brainliest
defon3 years ago
6 0
Area formula: pi * radius * radius
Radius=1/2diameter=1/2(7)=3.5

3.5*3.5*pi=12.25pi square feet

Circumference formula: pi * diameter

7*pi=7pi feet
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Match the subtraction expressions to their solutions.
iogann1982 [59]

Answer:

-27.26        -----------    -52.89 - (-25.63)

135.03        -----------     49.40 - (-85.63)

-120(2)/(3)   -----------      -96(2)/(9) - 24(4)/(9)

-15(3)/(5)      -----------      -18(1)/(5) - [-2(3)/(5)]

   

8 0
3 years ago
Plzz help its only 1 question!!!
andrew11 [14]

Answer:

D is correct

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Step-by-step explanation:

8 0
2 years ago
Please help thank you.
marusya05 [52]
This problem can be completed in 2 ways. Both are acceptable.

Option 1:


This is an isosceles trapezoid that can be divided into a rectangle and two congruent triangles.

The area of the rectangle is the base times the height.

9 \times 4=36

The area of one of the triangles is half the base times the height.

\dfrac{1}{2} \times 5 \times 4 = 10

The other triangle must have that area too.

36+10+10=56

The area is 56 square centimeters.

Option 2:

We can use the area formula for the trapezoid.

A=\dfrac{b_1+b_2}{2} \times h

Where b_1 is the length of the shorter base
and b_2 is the length of the longer base
and h is the height.

The length of the shorter base is 9.
The length of the longer base is 9+5+5, or 19.

The height is 4.

A=\dfrac{9+19}{2} \times 4

=56

Same answer. The area is 56 square centimeters.

Both options are two acceptable ways the problem can be tackled.
7 0
3 years ago
A beach volleyball court is 9 meters wide and 17 meters long. The rope used for the boundary line costs $4.00 per meter. How muc
mojhsa [17]
I believe it should be 36.00$
Since the court is 9 meters wide we would have to multiply that by 4 because each meter is 4$
7 0
3 years ago
K is between J and M. L is between K and M. M is between K and N. If JN = 30, KM = 8, and JK = KL = LM, what is MJ?
erica [24]

Answer:

18

Step-by-step explanation:

MJ IS 18 RHIS IS YOUR CORRECT ANSWER

8 0
3 years ago
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