Use a proportion to solve the problem.The ratio of the height to the width of a packaging label is 5 to 19. If the height of the label is 2.5 inches, what is its width?
A. 21.5 in.
B. 0.7 in.
C. 9.5 in.
D. 7.5 in.
Answer: C
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Solve the problem.Find the area of the region enclosed by the curve y = x cos x and the x-axis for 
? ? x ? 
?.
A. 13? B. 11 C. 12? D. 11?
Find f-1(x).f(x) = 
A. f-1(x) = x3 - 6
B. f-1(x) = 
C. f-1(x) = 
- 6
D. No inverse function exists.
Two measurements are given. Find the absolute difference and then find the relative difference as a percentage. Assume that the first quantity is the compared value and the second quantity is the reference value. Round answers to the nearest tenth if necessary.In the college there are 1310 male students and 1150 female students.
A. Absolute difference: 160 Relative difference: 12.2% B. Absolute difference: -160 Relative difference: -12.2% C. Absolute difference: 160 Relative difference: 1.4% D. Absolute difference: 160 Relative difference: 13.9%
Write a chain rule formula for the following derivative.
for u = f(p, q); p = g(x, y, z), q = h(x, y, z)
A. 
= 
+ 
B. 
= 
+ 
+ 
C. 
= 
D. 
= 
+ 
