For the compound inequality, give the solution set in both interval and graph forms.4x - 1 ? -13 and 4x - 1 ? 3
A. [-3, 1]
B. (-3, 1]
C. (-3, 1)
D. [-3, 1)
Answer: A
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Integrate the function f over the given region.f(x, y) = 
+ 
over the trapezoidal region bounded by the x-axis, y-axis, line 
and line 
A. 60 B. 30 C. 25 D. 40
Solve.Professor Chang will give a student in her algebra class an A if his or her final score is at least 93, a B if the score is between 84 and 92, inclusive, and a C if the score is between 75 and 83, inclusive. Any student with a score between 66 and 74, inclusive, will receive a D, and anyone with a score at or below 65 will fail with a grade of an F. Letting x represent a student's grade, write a series of five inequalities corresponding to the possible grades given in the class
A.
| x ? 93 | A |
75 ? x ? 83 C
66 ? x ? 74 D
| x ? 65 | F |
B.
| x ? 93 | A |
75 ? x ? 83 C
66 ? x ? 74 D
| x ? 65 | F |
C.
| x ? 93 | A |
75 ? x < 83 C
66 ? x < 74 D
| x ? 65 | F |
D.
| x > 93 | A |
75 ? x ? 83 C
66 ? x ? 74 D
| x < 65 | F |
Multiply and simplify.sin ? (sec ? tan ? + csc ? + cot ?)
A. 1 + 2 sin2? B. sin2? - 1 + cos ? C. sin ? + 2 sec ? D. sec2? + cos ?
?Solve the system of linear equations
using an inverse matrix.
A. ?
B. ?
C. ?
D. ?
E. ?