Determine whether the statement is true or false.If f(x) is a polynomial having only real coefficients and 1 - 4i is a zero of f(x), then -1 + 4i is also a zero.
A. True
B. False
Answer: B
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Solve the system by the addition method.
A. (4, 
), (4, -
)
B. (4, 
), (4, -
), (-4, 
), (-4, -
)
C. (3, 
), (3, -
), (-3, 
), (-3, -
)
D. (3, 
), (3, -
)
Solve the given problem by use of the sum of an infinite geometric series.A child on a swing sweeps out a distance of 20 feet on the first pass. If she is allowed to continue swinging until she stops, and if on each pass she sweeps out a distance 
of the previous pass, how far does the child travel?
A. 60 ft B. 40 ft C. 100 ft D. 80 ft
This frequency table gives the distribution of ages of 100 people in a small town.
How many people are:More than 50 years of age
A. 15 B. No answer possible C. 42 D. 28
Solve the problem.On a recent trip, Sarah's car traveled 20 mph faster on the first 100 miles than it did on the remaining 80 miles. The total time for the trip was 4 hr. Find the speed of Sarah's car on the first part of the trip.
A. 26 mph B. 36 mph C. 9 mph D. 56 mph