3 years ago

A line has a slope of Negative one-half and a y-intercept of –2. What is the x-intercept of the line?

Mathematics

1 answer:

Mkey [24]3 years ago

4 0

Answer:

it's -4

Step-by-step explanation:

I just took the test and got it right

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Find the sample size required to achieve the given margin of error with SD = 51.02 and z - score = 1.96. Round your answer to th

coldgirl [10]

Answer:

The sample size required is 2500.

Step-by-step explanation:

z-score:

In function of the margin of error M, the z-score is given by:

$Z = \frac{M}{\frac{\sigma}{\sqrt{n}}} = \frac{M\sqrt{n}}{\sigma}$

In this question, we have that:

$\sigma = 51.02, M = 2, Z = 1.96$

$Z = \frac{M\sqrt{n}}{\sigma}$

$1.96 = \frac{2\sqrt{n}}{51.02}$

$2\sqrt{n} = 51.02*1.96$

$\sqrt{n} = \frac{51.02*1.96}{2}$

$(\sqrt{n})^2 = (\frac{51.02*1.96}{2})^2$

$n = 2500$

The sample size required is 2500.

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3 years ago

Find the value of s if 57+s=68

olga2289 [7]

Answer

s = 11

Step-by-step explanation:

Find the value of S:

57 + s = 68

Substract 57 from both sides of the equation

s = 68 - 57

s = 11

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A pharmacy wants to survey its customers to find out which brand of toothpaste they prefer. Which survey methods are likely to b

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C- Often times, if someone is using a coupon, they just want the lowest price and don't care what toothpaste is considered "the Best."

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3 years ago

What does this mean? I don’t understand.

Nutka1998 [239]

ninety four means $94. 36/100 means $0.36. when you put these together you get $94.36

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A rectangular prism has a length of 12in, a height of 5in, and a width of 8in. What is its volume, in cubic in?

cupoosta [38]

Answer: The volume is 480 in^3

Step-by-step explanation:

v= lwh

v= 12 * 5 * 8

v= 480 in^3

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