Solve the problem.Find (f + g)(1) when f(x) = x - 5 and g(x) = x + 4.
A. 1
B. 3
C. -7
D. 11
Answer: A
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Multiply and write the answer in scientific notation.(5.8 × 10-4)(8.7 × 107)
A. 14.5 × 1011 B. 1.62 × 103 C. 5.046 × 104 D. 5.046 × 103
Solve.In an electrical circuit, the voltage is equal to the product of the current, measured in amperes (A), and the resistance of the circuit, measured in ohms (?) 
Suppose the current in a circuit is 
and the resistance is 
Find the voltage. Round to the nearest hundredth, if necessary.
A. -1.84 V B. -44.1 V C. 4.1 V D. -0.54 V
Solve the problem.Acme Industries pays at the time-and-a-half rate for all time worked over 8 hours in any one day no matter how many hours are worked in a week. Susan Jones is an employee of Acme Industries. Last week she worked 10 hours on Monday, 6 hours on Tuesday, and 9 hours on Friday. Her gross earnings for the week were $263.56. What is her regular rate of pay?
A. $13.52 B. $9.95 C. $11.71 D. $8.93
For the function, find the average rate of change of f from 1 to x: 
f(x) = 
A. 
B. 
C. 
D. 