Complete the identity.csc2 
- sec2 
= ?
A. 0
B. 
C. 4 cot ? csc ?
D. 2 sin2 ? sec ?
Answer: C
Mathematics
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Write an equation in x that models the conditions. Do not solve the equation.12 is what percent (x) of 75?
A. 12 = 75x B. 0.12 = 75x C. 12x = 75 D. 12 = 0.75x
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Add.-10 + (-67) + 57 + (-15)
A. -15 B. -5 C. -35 D. -149
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Find functions f and g so that f ? g = H.H(x) = ?9x + 1?
A.
| f(x) = ?-x?; | g(x) = 9x - 1 |
B.
| f(x) = x; | g(x) = 9x + 1 |
C.
| f(x) = ?x?; | g(x) = 9x + 1 |
D.
| f(x) = -?x?; | g(x) = 9x + 1 |
Mathematics
Find an equation of a parabola that satisfies the given conditions.Focus at (4, 0), directrix x = -4
A. y2 = 16x B. 16y2 = x C. 16y = x2 D. 16x = y2
Mathematics