Use the associative property of addition to write an equivalent algebraic expression.(np + f) + m
A. np + (f + m)
B. m + (np + f)
C. n + (pf + m)
D. n(p + f) + m
Answer: A
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Solve the problem.The capacitances (in ?F) of three capacitors in series are C, C + 1.50, and C + 2.50. If their combined capacitance is 1.50 ?F, their individual values can be found by solving the equation 
+ 
+ 
= 1.50Find these capacitances.
A. 1.215 ?F, 2.715 ?F, 3.715 ?F B. 1.159 ?F, 2.659 ?F, 3.659 ?F C. 1.172 ?F, 2.672 ?F, 3.672 ?F D. 1.194 ?F, 2.694 ?F, 3.694 ?F
Factor by grouping.xy + 12x - 4y - 48
A. (y - 12)(x + 4) B. (x - 12)(y + 4) C. (x + 12)(y - 4) D. (y + 12)(x - 4)
Find the indicated rate.The city where Lu Na lives has a population of 1,971,718 people and an area of 166.1 square miles. What is the rate of number of people per square mile (the population density)?
A. 11,871 people/sq mi B. 327,502,360 people/sq mi C. 0.0000842 people/sq mi D. 12,464 people/sq mi
For the circle in Figure 1, EB and AD are diameters.
