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Among the choices provided the answer should be letter C. Below is the solution:

top
pi r^2 or pi * 400 
sides 
2 pi r * 60 
40 * 60 pi 
2400pi 

so add the top and side we get p*400 + p*2400 = 2800 pi ft^2

6 0

3 years ago

J is 14 less than 22 as an equation with what j=

Olegator [25]

22 - 14 = 8

so i think j = 8

4 0

2 years ago

Work out the value of x

mario62 [17]

Answer:

The letter "x" is often used in algebra to mean a value that is not yet known.

It is called a "variable" or sometimes an "unknown".

But in some cases, x can be equal to 1 like example when working with exponents.

Step-by-step explanation:

8 0

3 years ago

What is the measure of an angle whose sine is√3/2 ? 60 45 30

dem82 [27]

ANSWER

The required angle is
$60 \degree$

EXPLANATION

Let the angle whose sine is
$\frac{ \sqrt{3} }{2}$
be
$x \degree$

Then

$\sin(x \degree) = \frac{ \sqrt{3} }{2}$

We take the inverse sign of both sides to obtain,

$x = \sin ^{ - 1} ( \frac{ \sqrt{3} }{2} )$

We use our scientific calculator to evaluate and obtain,

$x = 60 \degree$

8 0

2 years ago

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