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Ilya [14]
3 years ago
12

Does anyone know the answers to these?

Mathematics
1 answer:
seraphim [82]3 years ago
6 0

Step-by-step explanation:

D because the angles add up to 90

A because both sets of angles add up to 180

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The z-statistic for a sample of delmar's practice times is 1.41. how should this statistic be interpreted in terms of the hypoth
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Answer: c) There is not enough evidence to reject H0

Step-by-step explanation:

7 0
3 years ago
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Y = 15x <br> y = 25 + 12.5x
swat32

Substitute y = 15x to the equation y = 25 + 12.5x:

15x = 25 + 12.5x     <em>subtract 12.5x from both sides</em>

2.5x = 25    <em>divide both sides by 2.5</em>

x = 10

Substitute the value of x to the equation y = 15x:

y = (15)(10)

y = 150

<h3>Answer: x = 10 and y = 150</h3>
7 0
3 years ago
How do you write 72% as a fraction and as a decimal?
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72% as a decimal is 0.72.

72% as a fraction is 72/100 = 18/25.
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3 years ago
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Laura earns $8.50 per hour baby-sitting for her neighbor. How much will Laura
Alex

Answer:

Just multiply the money per hour by the number of hours

Step-by-step explanation:

8.50•6.5

7 0
3 years ago
5. Evaluate the function for the given variables.
UkoKoshka [18]

Answer:

C. f(5) = 13 and f(-3) = -3

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 2x + 3

x = 5

x = -3

<u>Step 2: Evaluate</u>

x = 5

  1. Substitute:                    f(5) = 2(5) + 3
  2. Multiply:                        f(5) = 10 + 3
  3. Add:                              f(5) = 13

x = -3

  1. Substitute:                    f(-3) = 2(-3) + 3
  2. Multiply:                        f(-3) = -6 + 3
  3. Add:                              f(-3) = -3
7 0
3 years ago
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