4 years ago

I need quick help with the second question pls I'll brainlist

Mathematics

1 answer:

prisoha [69]4 years ago

4 0

Answer:

i think the answer is 2

Step-by-step explanation:

because it depends on how many brushes u buy so x is how many brushes u buy. and theres the cost

You might be interested in

The operations manager of a large production plant would like to estimate the mean amount of time a worker takes to assemble a n

xz_007 [3.2K]

Answer:

(15,595, 16,805)

Step-by-step explanation:

We have to:

m = 16.2, sd = 3.75, n = 150

m is the mean, sd is the standard deviation and n is the sample size.

the degree of freedom would be:

n - 1 = 150 - 1 = 149

df = 149

at 95% confidence level the t is:

alpha = 1 - 95% = 1 - 0.95 = 0.05

alpha / 2 = 0.05 / 2 = 0.025

now well for t alpha / 2 (0.025) and df (149) = t = 1,976

the margin of error = E = t * sd / (n ^ (1/2))

replacing:

E = 1,976 * 3.75 / (150 ^ (1/2))

E = 0.605

The 95% confidence interval estimate of the popilation mean is:

m - E <u <m + E

16.2 - 0.605 <u <16.2 + 0.605

15,595 <u <16,805

(15,595, 16,805)

5 0

4 years ago

13 12 20 Find the area

DerKrebs [107]

Answer:

no clue

Step-by-step explanation:

3 0

3 years ago

Datguy323 is going to complain again. What's the variables for: <img src="https://tex.z-dn.net/?f=x%5E2%2By%5E2%3D29%5C%5Cx%2By%

Korolek [52]

Answer: :o I FINALLY MADE IT

(5, 2)

x = 5

y = 2

Step-by-step explanation:

First, I graphed both equations. They meet at the points (5,2) and (2,5). Because y < 5, the solution is (5, 2)

Hope it helps <3

8 0

3 years ago

Read 2 more answers

the ratio of the number of galleons to the number of galleys in the Spanish armada was 5:1 what missing information could be use

Ahat [919]

Either the amount of galleons or the galleys.

if given the amount of galleons, you can find the amount of galleys by dividing the number of given galleons by 5.

if given the amount of galleys, you can find the amount of galleons by multiplying the number of given galleys by 5.

7 0

3 years ago

Read 2 more answers

A surveyor wants to know how many shoppers at a mall like to read books. He surveys 100 people coming out of a bookstore at the

denpristay [2]

Its B. People who shop in bookstores are likely to read more books than those who do not.

4 0

3 years ago

I need quick help with the second question pls I'll brainlist ​

I need quick help with the second question pls I'll brainlist