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Andrew [12]
3 years ago
12

PLEASE HELP WITH THIS I GOT 5 MIN LEFT GIVING ALL MY POINTS AND BRAINLIEST PLEASE COME!!!!!!!

Mathematics
1 answer:
yawa3891 [41]3 years ago
3 0
What's the question?
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the area of the surface of the swimming pool is 210 feet . what is the length d of the deep end ( in feets )?
zlopas [31]
<span>this is how i did it
 10(9)(d)= 210
  90d= 210
  d=2.3 feet.</span>
3 0
3 years ago
Suppose a researcher is interested in understanding the variation in the price of store brand milk. A random sample of 36 grocer
liberstina [14]

Answer: ($3.055, $3.205)

Step-by-step explanation:

Given : Significance level : \alpha: 1-0.95=0.5

Critical value : z_{\alpha/2}=1.96

Sample size : n= 36

Sample mean : \overline{x}=\$\ 3.13

Standard deviation : \sigma= \$\ 0.23

The confidence interval for population mean is given by :_

\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

\text{i.e. }\$\ 3.13\pm (1.96)\dfrac{0.23}{\sqrt{36}}\\\\\approx\$\ 3.13\pm0.075\\\\=(\$\ 3.13-0.075,\$\ 3.13+0.075)=(\$\ 3.055,\$\ 3.205)

Hence, the 95% confidence interval to estimate the population mean = ($3.055, $3.205)

3 0
3 years ago
Three less than four times m is 100. Find m
Sergio [31]
4m - 3 = 100
4m = 103
m = 25 3/4

Hope this helps!
5 0
3 years ago
To solve x + 9 = 12,______9 from both sides of the equation.​
Fantom [35]

Answer:

Subtract 9 from both sides of the equation.

5 0
2 years ago
Find the greatest common factor of 20, 70, and 50.
posledela

Answer:

=10

Step-by-step explanation:

because 20÷10=2

70÷10=7

50÷10=5

7 0
3 years ago
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