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Lady bird [3.3K]
3 years ago
9

I need help on 14 please

Mathematics
2 answers:
Fynjy0 [20]3 years ago
8 0
2+x=50

That is what I would do. I hope this helps!
MrMuchimi3 years ago
7 0
2+x=50 hope that helps
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7.Suppose that water is entering a cylindrical water tank so that the initial height of the water is 3 cm and the
lukranit [14]

Answer:

H(t) = 3*2^{t/30}

Step-by-step explanation:

Height doubles at every 30 seconds, so let's call n how many times it happens, and the t the total time:

n = t/30

If the height doubles one time, it is multiplied by 2, if it doubles 2 times, it's multiplied by 2², for n times, it is multiplied by 2ⁿ, so for an initial height equal to 3:

H(t) = 3*2^{t/30}

4 0
2 years ago
The function y = 3.50 x + 2 represents the total amount of money, y, saved over x weeks.
enot [183]
B it is linear Bc it increases constantly. There is a constant slope that doesn’t change
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3 years ago
You are an assistant director of the alumni association at a local university. You attend a presentation given by the university
NNADVOKAT [17]

Answer:

(0.102, -0.062)

Step-by-step explanation:

sample size in 2018 = n1 = 216

sample size in 2017 = n2 = 200

number of people who went for another degree in 2018 = x1 = 54

number of people who went for another degree in 2017 = x2 = 46

p1 = x1/n1 = 0.25

p2 = x2/n2 = 0.23

At 95% confidence level, z critical = 1.96

now we have to solve for the confidence interval =

<h2> p1 -p2 ± z*\sqrt{((1-p1)*p1)/n1 + ((1-p2)*p2/n2}</h2>

0.25 -0.23 ± 1.96*\sqrt{((1 - 0.25) * 0.25)/216 + ((1 - 0.23) *0.23/200}

= 0.02 ± 1.96 * 0.042

= 0.02 + 0.082 = <u>0.102</u>

= 0.02 - 0.082 = <u>-0.062</u>

<u>There is 95% confidence that there is a difference that lies between  - 0.062 and 0.102 on the proportion of students who continued their education in the years, 2017 and 2018.</u>

<u></u>

<u>There is no significant difference between the two.</u>

5 0
3 years ago
I exercise for hour an half everyday.how many minutes in total do i exercise for 5 days
LenaWriter [7]

Answer:

450 minutes

Step-by-step explanation:

1 hour and a half = 90 minutes in one day

90 (minutes) × 5 (days) = 450 minutes

6 0
3 years ago
The sale tax on the purchase of a refrigerator that cost 695 is 7 percent.What is the amount of sales tax
Dafna1 [17]
The answer is .07 × 695 = 48.65
5 0
3 years ago
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