Write the perimeter of the figure as an algebraic expression and simplify.
A. 4a + 2b
B. 4a + 7b
C. 3a + 7b
D. 3a + 8b
Answer: B
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Evaluate the integral.Use the formula
to evaluate the integral. 
A. x cot-1 x - ln sin(cot-1 x) + C B. x cot-1 x - ln sin x + C C. x cot-1 x - x + C D. x cot-1 x + ln sin(cot-1 x) + C
Simplify the expression. If any variables exist, assume that they are positive.
+ 8
+ 2
A. 36
B. 10
C. 11
D. 37
Find vectors b and c and matrix A so that the problem is set up as a canonical linear programming problem of the form: maximize cTx subject to Ax ? b and x ? 0. Do not find the solution.Maximize 5x1 + x2 + 6x3 subject to x1 + 4x2 - 4x3 ? 34 -4x2 + 4x3 ? 20and x1 ? 0, x2 ? 0, x3 ? 0
A. b = 
, c = 
, and A = 
B. b = 
, c = 
, and A = 
C. b = 
, c = 
, and A = 
D. b = 
, c = 
, and A = 
The terminal side of angle ? in standard position lies on the given line in the given quadrant. Find sin ?, cos ?, and tan ?.
; quadrant II
A. sin ? = 
;
cos ? = - 
;
tan ? = -9
B. sin ? = - 
;
cos ? = 
;
tan ? = -9
C. sin ? = 
;
cos ? = - 
;
tan ? = -9
D. sin ? = - 
;
cos ? = 
;
tan ? = -9