Use the rules for exponents to rewrite the expression and then evaluate the new expression. (72)-1
A. 
B. - 
C. -14
D. -49
Answer: A
Mathematics
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Divide. Write the answer in lowest terms and as a whole or mixed number where possible.28 ÷ 
A. 21
B. 37
C. 
D. 7
Mathematics
Use L'H
pital's rule to find the limit.
A. e17 B. e20 C. e16 D. 0
Mathematics
Use a grapher to find the vertex or x-intercepts, as indicated, of the quadratic function.Find the vertex of the function f(x) = -0.2x2 + 0.7x - 6.9.
A. (1.75, -7.5125) B. (1.75, -6.2875) C. (1.75, -6.9) D. (-1.75, 6.2875)
Mathematics
Factor by grouping.6x2 - 9x + 8x - 12
A. (6x - 4)(x + 3) B. (6x + 4)(x - 3) C. (3x - 4)(2x + 3) D. (3x + 4)(2x - 3)
Mathematics