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Serjik [45]
2 years ago
13

Who else loves the book call me by your name

Mathematics
1 answer:
Ilia_Sergeevich [38]2 years ago
6 0
Omg yes it’s so good !!!!
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Find the value of x. Round to the nearest tenth. Help please!!!
jasenka [17]

Answer:

x=3

Step-by-step explanation:

Right triangle so you can use pythagorean theorem

a squared + b squared = c squared

b=x

14^2 + b^2= 17^2

14+b=17

b=3

8 0
2 years ago
Read 2 more answers
A random sample of size 15 taken from a normally distributed population revealed a sample mean of 75 and a sample variance of 25
GREYUIT [131]

Answer:

The upper limit of a 95% confidence interval for the population mean would equal 83.805.

Step-by-step explanation:

The standard deviation is the square root of the variance. Since the variance is 25, the sample's standard deviation is 5.

We have the sample standard deviation, not the population, so we use the t-distribution to solve this question.

T interval:

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 15 - 1 = 14

Now, we have to find a value of T, which is found looking at the t table, with 14 degrees of freedom(y-axis) and a confidence level of 0.95(t_{95}). So we have T = 1.761

The margin of error is:

M = T*s = 1.761*5 = 8.805.

The upper end of the interval is the sample mean added to M. So it is 75 + 8.805 = 83.805.

The upper limit of a 95% confidence interval for the population mean would equal 83.805.

4 0
3 years ago
If the mass of a metal bar which is 3.25m long is 15 kg,find its mass per metre.
Law Incorporation [45]
The answer is 4.61 :)
7 0
2 years ago
What is the percentage of $1.35 of $5
AnnyKZ [126]
I believe that the answer would be 27%


6 0
3 years ago
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A. 90<br> b. 110 <br> c. 100<br> d. 55
ss7ja [257]
The answer is 110.


The 55 degree angle is related to arc B. The measure of arc B is double the measure of the angle. So, arc B covers 55*2=110 degrees.
8 0
2 years ago
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