Let U = {1, 2, 4, 5, a, b, c, d, e}. Find the complement of the set.P = {e, a, c, 4, 5}
A. {1, 2, 3, b, d}
B. {b, d, 1, 2, 3}
C. {1, 2, b, c, d}
D. {1, 2, b, d}
Answer: D
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Use the reciprocal and quotient identities to find the indicated function value.cot ? = 
, cos ? = - 
; find sin ?
A. - 
B. 
C. 
D. - 
Solve the problem.The following graph shows the private, public and total national school enrollment for students for select years from 1970 through 2000.
i) How is the graph for total school enrollment, T, determined from the graph of the private enrollment, r, and the public enrollment, u?ii) During which 10-year period did the total number of students enrolled increase the least?iii) During which 10-year period did the total number of students enrolled increase the most?
A.
| i) | T is the sum of r and u. |
iii) 1990-2000
B.
| i) | T is the sum of r and u. |
iii) 1970-1980
C.
| i) | T is the difference of r and u. |
iii) 1990-2000
D.
| i) | T is the sum of r and u. |
iii) 1980-1990
Solve the problem.A wheel with a 20-inch radius is marked at two points on the rim. The distance between the marks along the wheel is found to be 18 inches. What is the angle (to the nearest tenth of a degree) between the radii to the two marks?
A. 47.6° B. 53.6° C. 51.6° D. 49.6°
Using the variable x, write the interval as an inequality.(-7, 8]
A. -7 ? x ? 8 B. -7 < x < 8 C. -7 < x ? 8 D. x ? 8