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Shkiper50 [21]
2 years ago
9

What’s the answer I need it ASAP

Mathematics
1 answer:
mestny [16]2 years ago
3 0

Answer:

(3) HL is an angle bisector.

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The first number is 5 less than 3 times the second number. Twice the first number plus the second number is 137. Find the two nu
Irina-Kira [14]
5-3+10+137 10 and 137 are your numbers hope this helped 
8 0
3 years ago
Unoccupied seats on flights cause airlines to lose revenue. Suppose a large airline wants to estimate its average number of unoc
Bingel [31]

Answer:

We need a sample size of at least 719

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{1-0.95}{2} = 0.025

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 1-0.025 = 0.975, so z = 1.96

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.

How large a sample size is required to vary population mean within 0.30 seat of the sample mean with 95% confidence interval?

This is at least n, in which n is found when M = 0.3, \sigma = 4.103. So

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

0.3 = 1.96*\frac{4.103}{\sqrt{n}}

0.3\sqrt{n} = 1.96*4.103

\sqrt{n} = \frac{1.96*4.103}{0.3}

(\sqrt{n})^{2} = (\frac{1.96*4.103}{0.3})^{2}

n = 718.57

Rouding up

We need a sample size of at least 719

6 0
2 years ago
Im timed make it quick
erica [24]

Answer:

i think its a

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What two numbers multiply together to equal -15 and add together to equal -14?
4vir4ik [10]

Answer:

-15 and 1

Step-by-step explanation:

-15x1=-15

-15+1= -14

3 0
2 years ago
Day 1 =1 rose, day2 = 6 roses How many on day 34?
Readme [11.4K]
204, because each day 6 goes up, so 34 x 6 = 204. Hope this helps :)
3 0
2 years ago
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