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kow [346]
3 years ago
8

Given that the mean of a data set is 25, and the standard deviation is 5, what is the Z-score of 15?

Mathematics
1 answer:
Ber [7]3 years ago
5 0

The answer is negative 2

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Arturiano [62]

Answer: d

Step-by-step explanation:

7 0
3 years ago
The LCD of theses fractions? <br> y/x + y/3+ y+1/y<br><br> Answers:<br> 3x+y<br> x+3+y<br> 3x+y
Dahasolnce [82]
3xy 

<span>y(3y)/3xy + y(xy)/3xy + (y+1)(3x)/3xy </span>

<span>NOW since all of the fractions have a denominator of 3xy, drop the denominators and solve using the numerators. </span>

<span>y(3y) + y(xy) + (y+1)(3x) </span>

<span>3y^2 + xy^2 + 3xy +3x </span>

<span>cannot simplify further.</span>
5 0
3 years ago
In 1990, Dawn gross pay was $48,000.
forsale [732]

A. Dawn's gross monthly pay is<em> $4,000</em> ($48,000/12).

B. The month that Dawn hit her maximum taxable Social Security Income is May (5 months from January to May).

C. In February, 1978, Dawn paid <em>$260</em> in Social Security Tax.

D. In May, 1978, Dawn paid <em>$110.50</em> in Social Security Tax, which represented the balance.

E. In November, 1978, Dawn paid <em>$0</em> in Social Security Tax because by May she had completely paid the maximum Social Security Tax of $1,150.50.

<h3>Data and Calculations:</h3>

Gross earnings in 1990 = $48,000

Maximum taxable income in 1990 = $17,700

Social Security Tax Rate = 6.5%

Gross monthly pay = $4,000 ($48,000/12)

Monthly Social Security Tax = $260 ($4,000 x 6.5%)

Total Social Security Tax = $1,150.50 ($17,700 x 6.5%)

In 5 months, Dawn would have paid a <em>total of $1,150.50</em> ($260 x 4 + $110.50) in Social Security Tax.

Thus, the total Social Security Tax paid by Dawn in that year was <em>$1,150.50.</em>

Learn more about Social Security Tax here: brainly.com/question/9741758

4 0
2 years ago
Help Me Plzzzzz
Anastaziya [24]

Step-by-step explanation:

wheres the decimal to compare it to

6 0
3 years ago
Read 2 more answers
Help me fasssssst huryyyy up
GenaCL600 [577]

Answer: 20%

1/(1+4) = the answer

its just the amount of lemon juice over total volume

4 0
2 years ago
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