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ehidna [41]
3 years ago
15

The roof of a tower in a castle is shaped like a cone. The height of the roof is 30 ft, and the radius of the base is 15 ft. Wha

t is the area of the roof?
Mathematics
1 answer:
Serhud [2]3 years ago
4 0

 

d.

1,580.6 ft2 is the answer


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If a 1% level of significance is used to test a null hypothesis, there is a probability of __________ of rejecting the null hypo
USPshnik [31]

Answer:

If a 1% level of significance is used to test a null hypothesis, there is a probability of ____ less than 1%______ of rejecting the null hypothesis when it is true

Step-by-step explanation:

Given that a hypothesis testing is done.

Level of significance used is 1%

i.e. alpha = 1%

When we do hypothesis test, we find out test statistic Z or t suitable for the test and find p value

If p value is < 1% we reject null hypothesis otherwise we accept null hypothesis.

So p value can be atmost 1% only for accepting null hypothesis.

So the answer is 1%

If a 1% level of significance is used to test a null hypothesis, there is a probability of ____less than 1%______ of rejecting the null hypothesis when it is true.

7 0
3 years ago
40 percent of a number is PLUS 8 of that number, what is the number
rodikova [14]

0.4x=x+8

4x=10x+80

6x=-80

x=-13\frac{1}{3}

7 0
3 years ago
An algebraic expression use to represent the number. One third subtracted from 3
Andrews [41]

Answer:

m/3

Step-by-step explanation:

13 m or m 3

Explanation:One third = 13 (the number)'Of' = multiplication (symbol : ×)

a number m = m (variable)

One third of a number m= (one third)(a number m)= (13)(a variable)  = (13)

(m)= 13 m or m 3 since 13 m = m/3

4 0
3 years ago
Please help, I’ve looked everywhere and haven’t found any answers!
Sergio [31]

Answer:

m = 4 + (2n)/(3)

Step-by-step explanation:

Move all terms that contain m to the right side and solve it.

7 0
3 years ago
Is -7 bigger than - 8​
alina1380 [7]

Hey!

------------------------------------------

Answer:

True

------------------------------------------

Explanation:

The smaller the negative number the bigger it is.

-7 > -8

------------------------------------------

Hope This Helped! Good Luck!

8 0
3 years ago
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