Express the number in terms of i.
A. - i
B. 3i
C. ±3i
D. -3i
Answer: B
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Use the theoretical probability formula to solve the problem. Express the probability as a fraction reduced to lowest terms.Use the spinner below to answer the question. Assume that it is equally probable that the pointer will land on any one of the five numbered spaces. If the pointer lands on a borderline, spin again. Find the probability that the arrow will land on an odd number. 
A. 1
B. 0
C. 
D. 
Use the properties of equality to solve the equation.
n = 10
A. 2
B. 50
C. 
D. 
Use the graphs to evaluate the expression.(f ? g)(0)y = f(x)y = g(x)
A. -1 B. 1 C. -3 D. -2
Solve.Two resistors are wired in parallel, one of which is 90 ohms. If the total resistance is to be 40 ohms, what must be the value of the other resistor? Use the formula for the total resistance R in an electrical circuit with resistors R1, R2, R3, ..., Rn that are wired in parallel. src="https://sciemce.com/media/4/ppg__2720711191121__f1q76g5.jpg" style="vertical-align: -21.0px;" />
A. 50 ohms
B. 27.7 ohms
C. 130 ohms
D. 72 ohms
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