Simplify. Assume that all variables represent positive numbers.
A. 2401x28y32z4
B. 7x7y8z
C. 2744xyz
D. 24.5x7y8z
Answer: B
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Change the measurements on this scale drawing to decimals and round them to the nearest tenth of an inch. src="https://sciemce.com/media/4/ppg__tttt0622191212__f1q50g6.jpg" style="vertical-align: -17.0px;" /> in. length b is:
A. 0.4 in.
B. 0.3 in.
C. 0.1 in.
D. 0.2 in.
a 4
in. b 
in. c 
in. d 
in. e 2
Find the vertex, focus, and directrix of the parabola with the given equation.(y + 1)2 = -12(x + 2)
A. vertex: (-2, -1) focus: (1, -1) directrix: x = -5 B. vertex: (2, 1) focus: (-1, 1) directrix: x = 5 C. vertex: (-1, -2) focus: (-4, -2) directrix: x = 2 D. vertex: (-2, -1) focus: (-5, -1) directrix: x = 1
Translate the mathematical sentence to an English sentence.59 = 2x
A. Two times two is some number. B. The product of fifty-nine and two is some number. C. Fifty-nine is two times some number. D. Two is the product of fifty-nine and some number.
Assume that x is a positive number. Use the properties of logarithms to write the expression ? logb (x + 8) - logbx as the logarithm of one quantity. ?
A. 
B. 
C. 
D. 
E. logb (x2 - 8x)