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KonstantinChe [14]
2 years ago
15

PLEASE HELP ME WITH THIS QUESTION!!!!!

Mathematics
2 answers:
Alla [95]2 years ago
7 0
So the top ones cracked and I don’t know why because I want to go see a little room at about a guy who in the hell out again if you want to go see it out what happened
prohojiy [21]2 years ago
4 0

Answer:

we have, 1953125=5⁹, so it cannot be a perfect square. If the last digit of a given number is 5, then the last three digits must be perfect squares, 025 or 225 or 625. Otherwise, that number cannot be a perfect square. And as 125 is not a perfect square, so no number ending with 125 can be a perfect square

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Jasmon spent half of her weekly
Step2247 [10]

Answer:

10

Step-by-step explanation:

6 0
2 years ago
Past experience has indicated that the breaking strength of yarn used in manufacturing drapery material is normally distributed
vlabodo [156]

Answer:

95% two-sided confidence interval on the true mean breaking strength is (94.8cm, 99.2cm)

Step-by-step explanation:

Our sample size is 11.

The first step to solve this problem is finding our degrees of freedom, that is, the sample size subtracted by 1. So

df = 11-1 = 10.

Then, we need to subtract one by the confidence level \alpha and divide by 2. So:

\frac{1-0.95}{2} = \frac{0.05}{2} = 0.025

Now, we need our answers from both steps above to find a value T in the t-distribution table. So, with 10 and 0.025 in the two-sided t-distribution table, we have T = 1.812

Now, we find the standard deviation of the sample. This is the division of the standard deviation by the square root of the sample size. So

s = \frac{4}{\sqrt{11}} = 1.2060

Now, we multiply T and s

M = Ts = 1.812*1.2060 = 2.19/tex]For the lower end of the interval, we subtract the sample mean by M. So the lower end of the interval here is[tex]L = 97 - 2.19 = 94.81 = 94.8cm

For the upper end of the interval, we add the sample mean and M. So the upper end of the interval here is

L = 97 + 2.19 = 99.19 = 99.2cm

So

95% two-sided confidence interval on the true mean breaking strength is (94.8cm, 99.2cm).

7 0
3 years ago
I need help on this one
Tanzania [10]
What is it? I will help. :)
4 0
3 years ago
Help please & thank you , need it asap
lapo4ka [179]

Answer:

x = 180 - 30 - 41 - 67 = 42°

5 0
2 years ago
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12=x+3 please help me out
valentina_108 [34]

Answer: x=9

12=x+3

-3     -3

9=x

7 0
3 years ago
Read 2 more answers
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