3 years ago

Can you please help and explain I will give brainliest or thanks

Mathematics

1 answer:

Hatshy [7]3 years ago

7 0

9: is 12 (not fully sure)

11: is 3 2/4

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(45/360)2πr=9π/4

Lyrx [107]

Answer:

r=9

Step-by-step explanation:

45/360=1/8

1/8*2=2/8

2/8=1/4

1/4*pi*r=(9pi)/4

Divide both sides by 1/4 (the fours cancel each other out)

Pi*r=9*pi

Pi cancels each other out

R=9

Hope this helps

7 0

3 years ago

7/8 & 4/9 is closest to 0,1,2,3

Mrrafil [7]

7/8 is closest to 1 and 4/9 is closest to 0

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2 years ago

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A rectangular prism has a length of 5 1/8 feet, a width of 7 1/2 feet, and a height of 2 feet. What is the volume of the prism?

maksim [4K]

For this case we have that by definition, the volume of a rectangular prism is given by:

$V = A_ {b} * h$

Where:

$A_ {b}:$ It is the area of the base

h: It's the height

According to the data we have:

$length = 5 \frac {1} {8} = \frac {8 * 5 + 1} {8} = \frac {41} {8}$

$width = 7 \frac {1} {2} = \frac {2 * 7 + 1} {2} = \frac {15} {2}$

Then:

$A_ {b} = \frac {41} {8} * \frac {15} {2} = \frac {615} {16}$

Thus, the volume is:

$V = \frac {615} {16} * 2 = \frac {1230} {16} = 76.875$

Answer:

$76.875 \ ft ^ 3$

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2 years ago

Can anyone help with these 4 questions?

Mnenie [13.5K]

Answer:

hablas español?? Si o no ?

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2 years ago

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An airplane descends 2.2 miles to an elevation of 8.55 miles. Find the elevation of the plane before its descent.

lutik1710 [3]

Answer:

10.75 miles was the elavation before it's decsecent.

Step-by-step explanation:

Hope this helps! :)

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3 years ago