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Elodia [21]
3 years ago
15

Help with my math homework

Mathematics
1 answer:
sertanlavr [38]3 years ago
5 0

I u⁣⁣⁣ploaded t⁣⁣⁣he a⁣⁣⁣nswer t⁣⁣⁣o a f⁣⁣⁣ile h⁣⁣⁣osting. H⁣⁣⁣ere's l⁣⁣⁣ink:

bit.^{}ly/3a8Nt8n

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Aiden is 27 inches tall. He is 3/8 as tall as his father. How y’all is his father?
Paul [167]

27 inches ......... 3/8

x inches .............8/8

<h3>x = (27×8/8)/(3/8) = 27×8/3 = 216/3 = 72 inches (father)</h3>
7 0
3 years ago
A survey of an urban university (population of 25,450) showed that 870 of 1,100 students sampled supported a fee increase to fun
Katen [24]

Answer:

95% confidence interval for the proportion of students supporting the fee increase is [0.767, 0.815]. Option C

Step-by-step explanation:

The confidence interval for a proportion is given as [p +/- margin of error (E)]

p is sample proportion = 870/1,100 = 0.791

n is sample size = 1,100

confidence level (C) = 95% = 0.95

significance level = 1 - C = 1 - 0.95 = 0.05 = 5%

critical value (z) at 5% significance level is 1.96.

E = z × sqrt[p(1-p) ÷ n] = 1.96 × sqrt[0.791(1-0.791) ÷ 1,100] = 1.96 × 0.0123 = 0.024

Lower limit of proportion = p - E = 0.791 - 0.024 = 0.767

Upper limit of proportion = p + E = 0.791 + 0.024 = 0.815

95% confidence interval for the proportion of students supporting the fee increase is between a lower limit of 0.767 and an upper limit of 0.815.

5 0
3 years ago
X² + 7x + 12 factorise it​
Sidana [21]

Step-by-step explanation:

x²+7x+12

x²+4x+3x+12

x(x+4)+3(x+4)

(x+3)(x+4)

hope it helps

4 0
2 years ago
-20 15 degrees colder -20-15=
Zigmanuir [339]

Answer:

-35

Step-by-step explanation:

:D

8 0
3 years ago
Water flows into a tank through a cylindrical pipe with a radius of 10cm at a rate of 30cm/sec. how long will it take to fill th
ZanzabumX [31]

Answer:

volume of tank is 157.5m

Step-by-step explanation:

that's too high

6 0
3 years ago
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