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goldenfox [79]
3 years ago
10

What is the exact volume of the cone​

Mathematics
1 answer:
MrMuchimi3 years ago
5 0
675(Pi) is the answer
Since the equation is
Pi * r^2 * h/3
Pi * 15^2 * 9/3
Pi * 225 * 3
625(pi)
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Write the expression:<br><br> The quotient of the sum 3y and 5, and y squared.
lesya692 [45]

Answer:

(3y + 5) / (y^2)

Step-by-step explanation:

Sorry it's not actually in fraction format. That little button thing is having troubles atm on my end. Hope this is okay

6 0
3 years ago
- 4 x + 9 = 21 x=___ help
faust18 [17]
X=-3
because
-4x=21-9
-4x= 12 divide both sides
x=-3
4 0
3 years ago
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Find x when f(x)=1 . (These means find the input that gives an output of 1.)<br><br> f(x)=1/x-2
Andreyy89

Answer:

x = 1/3

Step-by-step explanation:

1 = 1/x -2

add 2 to both sides

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5 0
3 years ago
An automobile manufacturer has given its car a 46.7 miles/gallon (MPG) rating. An independent testing firm has been contracted t
erastova [34]

Answer:

z=\frac{46.5-46.7}{\frac{1.1}{\sqrt{150}}}=-2.23    

The p value would be given by:

p_v =2*P(z  

For this case since th p value is lower than the significance level of0.05 we have enough evidence to reject the null hypothesis and we can conclude that the true mean for this case is significantly different from 46.7 MPG

Step-by-step explanation:

Information given

\bar X=46.5 represent the mean

\sigma=1.1 represent the population standard deviation

n=150 sample size  

\mu_o =46.7 represent the value to verify

\alpha=0.05 represent the significance level for the hypothesis test.  

z would represent the statistic

p_v represent the p value

Hypothesis to test

We want to test if the true mean for this case is 46.7, the system of hypothesis would be:  

Null hypothesis:\mu = 46.7  

Alternative hypothesis:\mu \neq 46.7  

Since we know the population deviation the statistic is given by:

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}  (1)  

Replacing we got:

z=\frac{46.5-46.7}{\frac{1.1}{\sqrt{150}}}=-2.23    

The p value would be given by:

p_v =2*P(z  

For this case since th p value is lower than the significance level of0.05 we have enough evidence to reject the null hypothesis and we can conclude that the true mean for this case is significantly different from 46.7 MPG

7 0
3 years ago
3) y +24r + 45 = 0<br> What is the greatest common factor
Bond [772]

Answer:

The greatest common factor 24 and 45

The GCF of 24 and 45 is 3.

Step-by-step explanation:

I googled it

5 0
2 years ago
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