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
Answer: C
Mathematics
You might also like to view...
For the given sets, construct a Venn diagram and place the elements in the proper region.Let U = {c, d, g, h, k, u, q} A = {d, h, g, q} B = {c, d, h, u}
A. 
B. 
C. 
D. 
Mathematics
Solve the absolute value equation.|9x - 8| = 6
A. x = - 
, - 
B. x = 
, 
C. x = - 
, - 
D. x = 
, 
Mathematics
Find all complex solutions.x4 - 49 = 0
A. 
B. ± 
, ± i
C. 
, i
D. ± 
Mathematics
Solve the inequality. Write the solution set in interval notation.x2 - 6x + 5 ? 0
A. [5, ?) B. [1, 5] C. (-?, 1] D. (-?, 1] ? [5, ?)
Mathematics