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Ira Lisetskai [31]
3 years ago
15

How do I do this problem

Mathematics
1 answer:
Olegator [25]3 years ago
4 0
Reduce the expression, if possible, by cancelling the common factors.
-9
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The hourly wage increase each employee receives each year depends on their number of years of service. Every three years of serv
Fudgin [204]
If we let x as the number of years of service in the company and f(x) as the increase in the wage, the step wise function that describes the scenario is
f(x) = { 0.5,   x < 3
         { 1.0,   3 ≤ x < 6
         { 1.5,   6 ≤ x < 9
         { 2.0,   9 ≤ x < 12

The point (2, 12) represents the wage increase of x < 12
5 0
3 years ago
Read 2 more answers
5a - 9 + a = 9
Ne4ueva [31]

Answer:

a = 3

Step-by-step explanation:

1) Simplify 5a - 9 + a to 6a - 9.

6a - 9 = 9

2) Add 9 to both sides.

6a = 9 + 9

3) Simplify 9 + 9 to 18.

6a = 18

4) Divide both sides by 6.

a =  \frac{18}{6}

5) Simplify 18/6 to 3.

a = 3

Therefor, the answer is, a = 3.

7 0
2 years ago
Sue took a test in both biology and math last week. The biology test had a mean of 70 and a standard deviation of 7 whereas the
Anna [14]

Answer:

c. the biology test

Step-by-step explanation:

To answer this problem we need to calculate the z-score of both tests, using the formula:

z = (x - μ) / σ

Where x is Sue's score, μ is the mean, and σ is the standard deviation.

  • For the <u>biology test</u>, the z-score is:

z = (76 - 70) / 7 = 6/7 = 0.857

  • For the <u>math test</u>, the z-score is:

z = (76 - 75) / 10 = 1/10 = 0.100

Because the z-score for the biology test is greater than the z-score for the math test, Sue did better in the biology test, in comparison to the rest of the class.

6 0
3 years ago
Is this true of false ?? please help
garik1379 [7]

Answer:

True

Step-by-step explanation:

It's true becuase you need to make each side of the equation equalivant.

6 0
2 years ago
Read 2 more answers
...............................
stepladder [879]

Answer:

............................... is not a school related question

5 0
3 years ago
Read 2 more answers
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