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3 years ago

NERDS HELP ME !!!!!!!!

Mathematics

2 answers:

Ivahew [28]3 years ago

5 0

Answer:

63 it's the closest

Step-by-step explanation:

Rus_ich [418]3 years ago

4 0

Answer:

the answer is 21 π

Step-by-step explanation:

$V= \pi r^{2} \frac{h}{3}$

r=3

h=7

7/3 x 3^2 = 21

=21π

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3) Julian's shadow is 6 feet long. At the same time a 31 foot tall building casts a shadow that is 28 feet long. What proportion

SCORPION-xisa [38]

You are given the height of the building and the length of the shadow the building gives, so you can set that up as a proportion of Height of building over the length of the shadow so 31/28.

Now you can set the same proportion for Julian, using X for her height, so you would have x/6.

To solve for her height, set the two proportions equal and solve for x:

31/28 = x/6

Cross multiply:

31 * 6 = 28 *x

186 = 28x

Divide both sides by 28:

x = 186 / 28

x = 6.64 feet tall

5 0

3 years ago

Someone help I don't know what the diameter or radius is

Elenna [48]

<h3>Answer:</h3>

52.38 inch² & 261.90 inch²

<h3>Step-by-step explanation:</h3>

Here we need to find the area of the sector . So according to formula we know the area of sector as ,

$\boxed {\sf Area_{(sector)}= \dfrac{\theta}{360}\times \pi r^2 }$

Here we can see that the central angle subtended by the arc is 60° and the radius of the circle is 10 inches . So the required area would be ,

=> Area = ∅/ 360° × π r²

=> Area = 60°/360° × 22/7 × (10in.)²

=> Area = 1/6 * 22/7 * 100 in²

=> Area = 52 .380 in²

<h3>★ Hence the area of the red sector is 52.38 inch².</h3>

_________________________________

Now let's find out the area of blue sector .The angle subtended by the arc will be (360-60)°=300° .

=> Area = 300/360 × 22/7 × 100 in²

=> Area = 261. 90 in²

<h3>★ Hence the area of blue sector is 261.90 inch².</h3>

$\boxed{\red{\sf Area _{(red \ sector )} = 52.38 in^2 }}$

$\boxed{\blue{\sf Area _{(blue \ sector )} = 261.90 in^2 }}$

5 0

3 years ago

What is 40% of 24 hours

V125BC [204]

40% of 24 is 9.6 so that means it's 9.6 hours or 9 hours and 36 minutes.

6 0

3 years ago

PLS HELPPPPP MEE!!!!!!!

sergey [27]

Answer:

option b

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

In which situation is it necessary to measure from J to K? Geometry

WARRIOR [948]

Uh by ybtbybybybjjhhhh

7 0

3 years ago