Use a calculator to find the function value to four decimal places.sin 54°20'

A. 1.3934
B. 0.5588
C. 0.5831
D. 0.8124


Answer: D

Mathematics

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At one high school, students can run the 100-yard dash in an average of 15.2 seconds with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Find the percent of times that are:Less than 15.2 seconds

A. 34% B. 68% C. 50% D. 16%

Mathematics

Use an identity to find the value of the expression. Do not use a calculator.tan 70° - 

A. Undefined B. 0 C. 70 D. 1

Mathematics

Solve the problem.The transverse (vertical) displacement of a traveling wave on a stretched string is represented by the equation  Find the period, amplitude, and phase shift of this function, given that    and 

A. 1, 2, 2.5 B. 3, 2, -2.5 C. 1.00, 2, 2.50 D. ?, 2, -2.5

Mathematics

Solve the problem.It is determined that 25% of the student body of Piper School attended an  assembly. If 144 students attended the assembly, how many students are enrolled at the school?

A. 573 B. 580 C. 576 D. 588

Mathematics