Minus 32a from both sides
17d=176-32a
divide both sides by 17
d=
Answer:
13) Is a linear function. The points form a straight line
14) Is an exponential function. The points form a curved line.
The value of x is 13 for the first attachment.
Answer:
Let say 75% of cars older than age = Y years
than 25 % cars of age less than Y Years
Z score corresponding to 25 % = -0.674
Z score = (Value - Mean) /SD
Value = Y
Mean = 8
SD = 3.2
Z score = -0.674
-0.674 = (Y - 8)/3.2
=> Y =5.84 Years
=> Y ≈ 5.9 Years
Approximately 75% of cars driven by company employees are older than about 5.9 years
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