Simplify the expression.sin2 ? + tan2 ? + cos2 ?
A. sin ?
B. sec2 ?
C. tan2 ?
D. cos3 ?
Answer: B
Mathematics
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Find the focus and directrix of the parabola.y = 5x2
A. (1/20, 0); x = -1/20 B. (0, 1/20); y = -1/20 C. (0, 1/20); y = 1/20 D. (1/5, 0); x = -1/5
Mathematics
Simplify the expression. Express the answer so that only positive exponents occur. Assume that all variables are positive.(16x8y4)1/2
A. 4x4y B. 4x4y2 C. 4x8y2 D. x4y2
Mathematics
Perform the indicated operation.
?
?
__________two?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Divide, when possible.53,357 ÷ 85
A. 627 B. 627 r61 C. 627 R62 D. 62
Mathematics