Solve the problem.The life span of a certain type of car timing belt, calculated in miles, is normally distributed, with a mean of 90,000 miles and a standard deviation of 8000 miles. If the maker of the timing belt wants less than 4% of the belts to fail while under warranty, for how many miles should the timing belts be guaranteed?
A. Less than 68,800 miles
B. Less than 103,200 miles
C. Less than 111,200 miles
D. Less than 76,000 miles
Answer: D
Mathematics
You might also like to view...
Write the exponential equation in its equivalent logarithmic form.4-2 = 
A. log1/16 4 = -2
B. log4 
= -2
C. log4(-2 )= 
D. log-2 
= 4
Mathematics
Write the percent as a decimal.58%
A. 5.8 B. 0.058 C. 58.0 D. 0.58
Mathematics
Divide.
A. - 
+ 
i
B. 
- 
i
C. 
+ 
i
D. - 
+ 
i
Mathematics
A cubic centimeter (cc) is the amount of space that a volume of 1 ml occupies. Because of this, we say that 1 cc = 1 ml. A common syringe is one with a capacity of 3 cc. Use the diagram below to find the indicated measurement.
B
A. 0.12 cc B. 0.012 cc C. 12 cc D. 1.2 cc
Mathematics