Answer:
Tires that wear out by approximately 24307.8 miles will be replaces free of charge.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 27,000 miles
Standard Deviation, σ = 2100 miles
We are given that the distribution of life expectancy is a bell shaped distribution that is a normal distribution.
Formula:
We have to find the value of x such that the probability is 0.10
Calculation the value from standard normal z table, we have,
Tires that wear out by approximately 24307.8 miles will be replaces free of charge.
First let's make both the miles and the hours ran improper fractions:
So, to find our miles per hour, we have to divide the miles by the hours to get: 
Answer:
10 divided by 3 = 3.33 for each side of the triangle.
2 x 6 = 12(area of two triangles)
10(height) x 3.33(area of one side of the triangle) x 3(three rectangles) = 99.9
Add given areas:
99.9 + 12 = 111.9 rounded = 112 cm^2
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Answer:
4. (4, 5)
Step-by-step explanation:
Use substitution to put the value for y in the second equation.
-3x +4(5) = 8
-3x = -12 . . . . . . . subtract 20
x = 4 . . . . . . . . . . divide by -3
The solution is (x, y) = (4, 5).
Answer:
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Step-by-step explanation:
