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3 years ago

Answer this question please and thank you

Mathematics

1 answer:

larisa86 [58]3 years ago

3 0

Answer:

eight by eight is equals to sixty four

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The value of x is??!!

Rashid [163]

Answer:

x = 4.56

Step-by-step explanation:

57 + x + 25x + x = 180

27x + 57 = 180

27x = 123

x = 4.56

7 0

3 years ago

Can anyone please help, ;_;

BlackZzzverrR [31]

It was hard to figure this put but I'll just a take an educated guess and say that the answer is 10%.

7 0

2 years ago

A cheese processing company wants to estimate the mean cholesterol content of all one-ounce servings of a type of cheese. The es

Mrrafil [7]

Answer:

The minimum sample size required to construct a 95% confidence interval for the population mean is 65.

Step-by-step explanation:

We are given the following in the question:

Population standard deviation,

$\sigma = 3.10\text{ milligrams}$

We need to construct a 95% confidence interval such that the estimate is within 0.75 milligrams of the population mean.

Thus, the margin of error must me 0.75

Formula for margin of error:

$z_{critical}\times \dfrac{\sigma}{\sqrt{n}}$

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

Putting values, we get,

$0.75 = 1.86\times \dfrac{3.10}{\sqrt{n}}\\\\\sqrt{n} = \dfrac{1.96\times 3.10}{0.75}\\\\\sqrt{n} = 8.101\\\Rightarrow n = 65.63\approx 65$

Thus, the minimum sample size required to construct a 95% confidence interval for the population mean is 65.

5 0

2 years ago

14. In a right triangle, if one acute angle has measure 10x + 6 and the other has measure 2x + 7, find the larger of these two a

lubasha [3.4K]

Answer:

421/6 degrees

Step-by-step explanation:

The acute angles of a right triangle are complementary, so

$10x+6+2x+7=90 \\ \\ 12x+13=90 \\ \\ 12x=77 \\ \\ x=\frac{77}{12}$

So, the acute angles measures 421/6 degrees and 119/6 degrees, and thus the larger angle is 421/6 degrees.

7 0

1 year ago

|-9t| = 9 what is the answer

KonstantinChe [14]

$|-9t|=9\\
|9t|=9\\
9|t|=9\\
|t|=1\\
t=-1 \vee t =1$

5 0

3 years ago