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%
Answer: C
Mathematics
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Graph the polynomial function. Use synthetic division and the remainder theorem to find the zeros.f(x) = 3x3 + 5x2 - 16x - 12 
A. 2, - 
, -3;
B. 2, 
, -3;
C. 2, - 
, 3;
D. 2, 
, 3;
Mathematics
Find a formula for the function graphed.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Mathematics
Find ? to four significant digits for 0 ? ? < 2?.cot ? = -2.736
A. 5.933, 0.3504 B. 5.063, 1.921 C. 2.791, 5.933 D. 4.362, 2.791
Mathematics
Provide an appropriate response. Add 3 sec. + 4.5 sec. + 5.85 sec. + 9.123 sec. and round to 3 significant digits.
A. 22 sec. B. 22.4 sec. C. 22.473 sec D. 22.5 sec
Mathematics