Answer:
Step-by-step explanation:
The application of probability distribution function is employed in solving the question. The detailed analysis and step by step approach is as shown in the attached file.
The table is:
Number of washes denoted by x: 0, 8, 12
Amount left on card denoted by y: 30, 18, 12
a. Write an equation that shows the amount of dollars left on the card
Solution:
18 – 30 divided by 8 – 0 = -12/8
On simplest form is -3/2
The equation is y = -3/2x + 30
b. Explain the meaning of the negative slope above.
As the number of car washes increase, the dollars left on the card decreases.
c. What is the maximum value of x?
0 = -3/2x + 30
2/3 x 3/2 x = 30/1 x 2/3
Cancel 2/3 x 3/2 and reduce 30 by 3 we get 10, 10 x 2
x = 20
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Answer:
A
Step-by-step explanation:
Vertical Line test will determine if a graph is a function or not
Answer:
70°
Step-by-step explanation:
Total angle in a triangle is 180
∠C = 180 - 70 - 40
= 180 - 120
= 70
Answer:
Highlight the important information in the problem that will help write two equations.
Define your variables.
Write two equations.
Use one of the methods for solving systems of equations to solve.
Check your answers by substituting your ordered pair into the original equations.
Step-by-step explanation:
