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Usimov [2.4K]
3 years ago
6

Pls help me with this problem. Also the answer has to be in terms of pi

Mathematics
1 answer:
katovenus [111]3 years ago
4 0
Answer: 25pi
Explanation: area = piR^2 so 10(radius)^2 = 100pi, only 1/4 of the circle is there so divide the area found (100pi) by 4 to find the one quarter of the circle.
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A cylindrical water tank's height is 48 feet and the diameter is 30 feet. Considering that 1 cubic yard = 202 gallons, how many
solmaris [256]

Answer:

The answer to your question is the letter C. 253712 gallons

Step-by-step explanation:

Data

height = 48 ft

diameter = 30 ft

1 yd³ = 202 gallons

π = 3.14

the number of gallons = ?

Process

1.- Write the formula to calculate the volume of a cylinder.

Volume = πr²h

2.- Calculate the volume

Volume = (3.14)(30/2)²(48)

-Simplification

Volume = (3.14)(225)(48)

-Result

Volume = 33912 ft³

3.- Convert ft³ to yd³

            1 yd³ -------------- 27 ft³

            x       ------------- 33912 ft³

            x = (33912 x 1)/ 27

            x = 33912 / 27

            x = 1256 yd³

4.- Convert yd³ to gallons

          1 yd³ --------------- 202 gallons

   1256 yd³ ---------------  x

          x = (1256 x 202) / 1

         x = 253712 gallons

7 0
3 years ago
Use the substitution method to solve the system of equations: y - 2x = 3; -X = y - 9. Write the answer as a point.
aleksley [76]

Answer:

Hello! I just took the test not too long ago the answer is -3

Have a good day! please mark brainliest!

4 0
2 years ago
I need help asap !!!!!!
OLEGan [10]

Answer:

B. ZJ = 85

C. KH = 68

Step-by-step explanation:

Given that ZK, ZL, ZM are perpendicular bisectors of ∆GHJ, they form a circumcenter which is equidistant from the vertices of ∆GHJ. According to the circumcenter theorem, ZH = ZG = ZJ = 85.

Also each median formed is equal. This means: KH = GH, LH = LJ, MG = MJ

Since HG = 136, KH = ½ of 136 = 68.

The two options that are true are:

B. ZJ = 85

C. KH = 68

4 0
2 years ago
A falcon flying 55 mph crosses a lake in 1 minute. How long would it take a hummingbird flying 45 mph to cross the same lake?
OverLord2011 [107]

Answer:

1 2/9 minutes

Step-by-step explanation:

55 mph

55 / 60 = 11/12

11/12 of a mile = 1 minute

45 mph

45 / 60 = 3/4

3/4 of a mile = 1 minute

11/12 divided by 3/4

11/12 * 4/3

We can cross-cancel

11/3 * 1/3 = 11/9 = 1 2/9

It takes 1 2/9 minutes for the hummingbird to cross the lake

Hope this helps!

(Please let me know if I did something wrong!)

7 0
3 years ago
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Mr. Parker bought a coat when it was on sale. He paid 70% of the original price. He paid $42 for the coat. What was the original
fenix001 [56]

Answer:

70percent =42

100percent ×42 ÷70

100/7×42

10/7×42=60

therefore the original cost was $60

6 0
2 years ago
Read 2 more answers
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