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1 year ago

Evan drew 8 pictures. Alexa drew p fewer pictures than Evan. Write an expression that shows how many pictures Alexa drew.

Mathematics

1 answer:

zhenek [66]1 year ago

3 0

Answer:

8 - p

Step-by-step explanation:

X is p fewer than Y … X = Y - P

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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

Write two verbal expressions for n-5

sukhopar [10]

A number less than five

n minus five

7 0

2 years ago

V= <img src="https://tex.z-dn.net/?f=v%3D%20%5Cpi%20r%20%5E%7B2%7D%20h%20%20for%20%20%202%20" id="TexFormula1" title="v= \pi r ^

swat32

$V=\pi r^2h \\\\ r^2=\frac{V}{\pi h} \\\\ \boxed{r=\sqrt\frac{V}{\pi h}}$

3 0

3 years ago

PLZZ HELP ASAP ILL MAKE U BRAINLIEST

user100 [1]

Translation right down c=

4 0

2 years ago

Read 2 more answers

Factor the expression completely over the complex numbers.<br><br> y^4+12y^2+36

Brums [2.3K]

Y⁴ + 12y² + 36
Now factorize the expression
y⁴ + 6y² + 6y² + 36
= y²(y² + 6) + 6(y² + 6)
= (y² + 6) (y² + 6)
<span>Now 6 is not the perfect square and according to rule, binomial can not be factored as the difference of two perfect squares.
</span>so multiply both.
(y² + 6)² is the answer.

7 0

2 years ago

Read 2 more answers