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Yanka [14]
2 years ago
10

Please help me solve my problem!!!

Mathematics
1 answer:
Bogdan [553]2 years ago
4 0

Answer:

180(n-2) or B

Step-by-step explanation:

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Brianna wants to save the $250 she earned by babysitting over the summer. She's trying to decide which
Nookie1986 [14]

Answer:

Total cost = Cost per month × 12 months per year × Number of years

= $21 × 12 × 8

= $2,016

Step-by-step explanation:

8 0
2 years ago
2x-10/4=3x<br> −10<br> −1<br> 2<br> 11
evablogger [386]

Answer:

<h2>-1</h2>

Step-by-step explanation:

\dfrac{2x-10}{4}=3x\qquad\text{multiply both sides by 4}\\\\2x-10=12x\qquad\text{subtract}\ 2x\ \text{from both sides}\\\\-10=10x\qquad\text{divide both sides by 10}\\\\-1=x\to x=-1

6 0
3 years ago
Write the mixed number as a fraction 1 1/8
Angelina_Jolie [31]
It would be 9/8

Hope this helps!
4 0
3 years ago
Read 2 more answers
Please help me with this surds question.
noname [10]

the answer is 0.2 or one fifths

3 0
3 years ago
Suppose that the pages per book in a library are normally distributed with an unknown mean and standard deviation. The book leng
Elanso [62]

Answer:

A t-score of 2.0244 should be used to find the 99% confidence interval for the population mean

Step-by-step explanation:

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 = 39 - 1 = 38

Now, we have to find a value of T, which is found looking at the t table, with 38 degrees of freedom(y-axis) and a confidence level of 0.99(t_{99}). So we have T = 2.0244.

A t-score of 2.0244 should be used to find the 99% confidence interval for the population mean

6 0
3 years ago
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