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pychu [463]
2 years ago
6

Y + 21 is greater than 25?

Mathematics
1 answer:
Dafna1 [17]2 years ago
7 0

Answer:

https://www.tiger-algebra.com/drill/25-y%3C21/Step-by-step explanation:

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use the formula to calculate how much the district spent on athletics in 1999. round your answer to the nearest thousandth
Vesnalui [34]
<span>10.6325909767 rounded to the nearest 10th is 10.633</span>
4 0
3 years ago
A sample size of n = 64 is drawn from a population whose standard deviation is o = 5.6.
AlekseyPX

Answer:

The margin of error for a 99% confidence interval for the population mean is 1.8025.

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 Ztable as such z has a pvalue of 1-\alpha.

So it 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.

In this problem:

\sigma = 5.6

So

M = 2.575*\frac{5.6}{\sqrt{64}} = 1.8025

The margin of error for a 99% confidence interval for the population mean is 1.8025.

5 0
3 years ago
Please help me with this algebra/geometry question!
sp2606 [1]
There is a app called photo mathyou should use it
7 0
3 years ago
Evaluate each expression if x=6,y=8,z=3<br> 2x+3y-z=
Savatey [412]
x=6,\ \ y=8,\ \ z=3\\\\2x+3y-z=2\cdot 6+3\cdot 8-3=12+24-3=33




3 0
3 years ago
Read 2 more answers
The angles of a triangle are in the ratio 5:3:7 find the angles
omeli [17]

Answer:

60, 36, 84

Step-by-step explanation:

The angles of a triangle always add up to 180 degrees.

If the ratios are 5:3:7, that means that there are 15 pieces that we can break up the 180 degrees by.

180/15 = 12

Each value is 'worth' 12 degrees.

Thus the angles would be the ratios multiplied by 12.

5 x 12 = 60

3 x 12 = 36

7 x 12 = 84

3 0
3 years ago
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