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3 years ago

Can yall help did i do this correctly PLEASE ANSWER!!!

Mathematics

1 answer:

saveliy_v [14]3 years ago

4 0

Answer:

no because either you are a wigger or you are black and i dont give answers to those "people"

Step-by-step explanation:

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Melissa got 18 out of 20 on a math quiz. Tom got 85% on the quiz. Whose mark was greater?

Zina [86]

Answer:

$tom = \frac{85}{100} \times 20 \\ = 17 \: questions$

Melissa had a greater mark.

4 0

3 years ago

Read 2 more answers

Which term is a term in this expression -3x- 7(x+4)

Over [174]

Answer:

A. -3x

Step-by-step explanation:

Terms are the parts of an expression that are separated by + or - signs

-3x is a term, because it is separated from the rest of the expression by a - sign.

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3 years ago

Solve the equation for Y

Svetach [21]

Answer:

y = 2

Step-by-step explanation:

-2y + 1 = y-5

-2 - y = -5 - 1

-3y = -6

y = -6 ÷ -3

y = 2

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3 years ago

Michmoo Computer Company sells computers and computer parts by mail. The company assures its customers that products are mailed

Anastaziya [24]

Answer: (60.858, 69.142)

Step-by-step explanation:

The formula to find the confidence interval for mean :

$\overline{x}\pm z_c\dfrac{\sigma}{\sqrt{n}}$ , where $\overline{x}$ is the sample mean , $\sigma$ is the population standard deviation , n is the sample size and $z_c$ is the two-tailed test value for z.

Let x represents the time taken to mail products for all orders received at the office of this company.

As per given , we have

Confidence level : 95%

n= 62

sample mean : $\overline{x}=65$ hours

Population standard deviation : $\sigma=18$ hours

z-value for 93% confidence interval: $z_c=1.8119$ [using z-value table]

Now, 93% confidence the mean time taken to mail products for all orders received at the office of this company :-

$65\pm (1.8119)\dfrac{18}{\sqrt{62}}\\\\ 65\pm4.142\\\\=(65-4.142,\ 65+4.142)\\\\= (60.858,\ 69.142)$

Thus , 93% confidence the mean time taken to mail products for all orders received at the office of this company : (60.858, 69.142)

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3 years ago

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SashulF [63]

Answer:

Step-by-step explanation:

Anything to the power of 0 equals 1

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3 years ago