Answer:
96 pi
Step-by-step explanation:
The formula for the volume of a cone is V=pi*r^2*h/3 the radius is 4 and the height is 18 plug in those values into the equation to get V=pi*16*6 16*=96 so the answer is 96 pi.
Answer: 3
Step-by-step explanation:
Given : Standard deviation : 
Margin of error : 
Significance level : 
By using the standard normal table of z ,
Critical value : 
The formula we use to find the minimum sample size required :-
i.e. 
Hence, the number of lights should we select if we wish to estimate μ to within 5 seats and be 95 percent confident =3
Let x = the amount of grapes that can be bought for 0.40.
Note: By 90 I assume you mean 90 cents. The same for 40.
12/x = 0.90/0.40
0.90x = 12(0.40)
0.90x = 4.80
x = 4.80 ÷ 0.90
x = 5.33333
We can round the decimal to the ones place to get 5 grapes.
Answer:
$21 is the answer
Step-by-step explanation:
Okay so all I did was find what number times 0.8=$16.80 which is $21.
<span><span>Step by step is like....:
(<span><span><span>3<span>x2</span></span>+<span>2x</span></span>−3</span>)</span><span>(<span>x−1</span>)</span></span><span>
=<span><span>(<span><span><span>3<span>x2</span></span>+<span>2x</span></span>+<span>−3</span></span>)</span><span>(<span>x+<span>−1</span></span>)</span></span></span><span>
=<span><span><span><span><span><span><span>(<span>3<span>x2</span></span>)</span><span>(x)</span></span>+<span><span>(<span>3<span>x2</span></span>)</span><span>(<span>−1</span>)</span></span></span>+<span><span>(<span>2x</span>)</span><span>(x)</span></span></span>+<span><span>(<span>2x</span>)</span><span>(<span>−1</span>)</span></span></span>+<span><span>(<span>−3</span>)</span><span>(x)</span></span></span>+<span><span>(<span>−3</span>)</span><span>(<span>−1</span>)</span></span></span></span><span>
=<span><span><span><span><span><span>3<span>x3</span></span>−<span>3<span>x2</span></span></span>+<span>2<span>x2</span></span></span>−<span>2x</span></span>−<span>3x</span></span>+3</span></span><span>
=<span><span><span><span>3<span>x3</span></span>−<span>x2</span></span>−<span>5x</span></span>+<span>3
Hoped I helped!</span></span></span>
