Find the exact value of the expression.tan 
A. 2 + 
B. 
C. 
D. -2 - 
Answer: D
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Solve the quadratic equation by completing the square.x2 + 10x + 15 = 0
A. {5 - 
, 5 + 
}
B. {-10 + 
}
C. {-5 - 
, -5 + 
}
D. {5 + 
}
Solve the problem.A company determines that its marginal profit, in dollars, from producing x units is given by 
where x ? 1. Suppose that it would be possible for the company to make infinitely many units of this item. Find the total profit. Round to the nearest dollar.
A. $6090 B. $6100 C. $6070 D. $6080
Find the x- and y-intercepts for the equation. Then graph the equation.y = 4x
A. x-intercept: (0, 0), y-intercept: (0, 0)
B. x-intercept: (0, 0), y-intercept: (0, 0)
C. x-intercept: (0, 0), y-intercept: (0, 0)
D. x-intercept: (0, 0), y-intercept: (0, 0)
Find the area.
A. Not enough data B. 186.2 cm2 C. 161.1 cm2 D. 185.1 cm2