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Olin [163]
3 years ago
12

HELP ME PLZZ I NEED HELP WITH THIS!!

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
7 0

Answer:

a

Step-by-step explanation:

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How do find volume of the triangular pyramid, I’m so confused I need the formula as well ASAP,!!,, please thanks so much
lidiya [134]

Answer:

5100

Step-by-step explanation:

20 x 17 x 15 = 5100. hope this helps you!!!

also formula is 1/2 x b x h x l

6 0
2 years ago
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QUESTION ON PIC TY!!!
Degger [83]

Answer:

Step-by-step explanation:

Multiply each number times 2 and then subtract from 29

3: 23

4: 21

5: 19

6: 17

3 0
2 years ago
pat has three pieces of fabric that measure 3/6 5/6 and 2/6 yards long . write the lengths in order from least to greatest
Harrizon [31]
The least to greatest would be 2/6, 3/6, 5/6.
As they all have the same denominator you look at the numerator to figure out the least to greatest. 2/6 is the shortest yard and 5/6 is the longest yard so it would be greater than 2/6.
6 0
3 years ago
you want to create a 99 confidence interval with a margin of error of 25 assuming that the population standard deviation is equa
Ahat [919]

Answer:

The minimum sample size is 239.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1 - 0.99}{2} = 0.005

Now, we have to find z in the Z-table as such z has a p-value of 1 - \alpha.

That is z with a pvalue of 1 - 0.005 = 0.995, so Z = 2.575.

Now, find the margin of error M as such

M = z\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

Population standard deviation is equal to 1.5

This means that \sigma = 1.5

Margin of error of 0.25

This means that M = 0.25

What's the minimum size of the sample?

M = z\frac{\sigma}{\sqrt{n}}

0.25 = 2.575\frac{1.5}{\sqrt{n}}

0.25\sqrt{n} = 2.575*1.5

\sqrt{n} = \frac{2.575*1.5}{0.25}

(\sqrt{n})^2 = (\frac{2.575*1.5}{0.25})^2

n = 238.7

Rounding up:

The minimum sample size is 239.

4 0
3 years ago
Which set of side lengths can be used to form a right triangle?
gayaneshka [121]
_Award brainliest if helped!
Ans: 14,48,50 :D

<u>14²+48²=50²</u>
(a²+b²=c²) [right angle triangle relation of sides]
7 0
3 years ago
Read 2 more answers
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