Find a formula for the function graphed.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Answer: B
Mathematics
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At one high school, students can run the 100-yard dash in a mean of 15.2 seconds with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Rounding to the nearest tenth of a percent as necessary, find the percent of times that are:Less than 15.2 seconds
A. 16% B. 68% C. 50% D. 34%
Mathematics
Evaluate the exponential expression.-120
A. 20 B. -1 C. -20 D. 1
Mathematics
Find the quotient and the remainder.8x2 + 63x - 81 divided by x + 9
A. 8x - 9; remainder 6 B. 8x - 9; remainder 0 C. 8x + 9; remainder 0 D. x - 9; remainder 0
Mathematics
Find the exact value of the expression.cos 
cos 
+ sin 
sin 
A. 
B. 
C. 1
D. 
Mathematics