Given the side lengths of a right triangle, find the indicated value. adj = 7, hyp = 
Find tan ?.
A. tan ? = 
B. tan ? = 
C. tan ? = 
D. tan ? = 
Answer: A
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Use either the binomial theorem or Pascal's Triangle to expand the binomial.(3y - x)4
A. 3y4 - 12y3x + 18y2x2 - 12yx3 + x4 B. 81y4x - 108y3x2 + 54y2x3 - 12yx4 C. 81y4 - 81y3x + 54y2x2 - 9yx3 + x4 D. 81y4 - 108y3x + 54y2x2 - 12yx3 + x4
Find the equation in standard form of the parabola described.The vertex has coordinates 
, and the focus has coordinates 
.
A. (x - 9)2 = 
B. 
2 = 
(y + 9)
C. (x + 9)2 = 
D. 
2 = 
(y - 9)
Solve.Libby's 4 quiz scores in her math class are 88, 87, 88, and 79. What score does she need to obtain on her next quiz to average an 85? Round to the nearest whole number if necessary.
A. 77 B. 83 C. 68 D. 85
Solve by elimination and check. x - 4y = -19-7x - 4y = 5
A. (-3, 4) B. (-4, -3) C. (-2, 3) D. No solution