Graph the function.y =  sin x

A.

B.

C.

D.


Answer: A

Mathematics

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Solve the problem.Find the volume of the solid that lies between planes perpendicular to the x-axis at x = - and x = . The cross sections are squares whose diagonals stretch from the x-axis to the curve 

A. ?
B. ?
C. ?
D. ?

Mathematics

Solve the problem.A data set consists of 80 test scores. Over a long period it has been found that the mean and standard deviation for these scores are known and that the scores are normally distributed. How many scores within this data set should lie within one standard deviation of the mean? Round your answer to the nearest whole number.

A. 27 B. 60 C. 76 D. 55

Mathematics

Solve the problem.Let y = -9x + 221 represent the number of students present in a large class, where x represents the number of hours of study required weekly. What is the rate of change of the number of students in the class with respect to the number of hours of study?

A. -221 students per hour of study time B. 9 students per hour of study time C. -9 students per hour of study time D. 221 students per hour of study time

Mathematics

Graph the exponential function.f(x) = ex + 5

A.

B.

C.

D.

Mathematics