Solve the problem.Suppose that P(A) = 0.45, P(B) = 0.45, and P(A ? B) = 0.79, find P(A ? B).
A. 0.11
B. 0.9
C. 0.68
D. 0.2025
Answer: A
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Calculate the circulation of the field F around the closed curve C.F = y3i + x2j; curve C is the counterclockwise path around the triangle with vertices at 
, and 
A. 
B. 0
C. - 
D. 
For the given slope of line l1, (a) find the slope of line a l2 parallel to l1, and (b) find the slope of a line l3 perpendicular to l1.m = 10
A. (a) 10; (b) - 
B. (a) 10; (b) 
C. (a) -10; (b) 10
D. (a) 
; (b) 10
Use the information given about the angle ?, to find the exact value of the indicated trigonometric function.cos ? = 
, tan ?> 0 Find sin 2?.
A. 
B. - 
C. 
D. 
Answer the question.If the trinomial ax2 + bx + c is a perfect square, what can we conclude about the solutions of the equation ax2 + bx + c = 0?
A. The equation has exactly one irrational solution. B. The equation has no real number solutions. C. The equation has two different rational solutions. D. The equation has exactly one rational solution.