Determine whether or not the function is one-to-one.f(x) = 
A. No
B. Yes
Answer: B
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Write the number 15.5 in Roman numerals.
A. vxss B. xiviss C. xvss D. xv
If the perimeter of ?ABC is 24cm, find the length of each side.
(a) 12 cm
(b) 72 cm
(c) 8 cm
(d) 6 cm
Solve the problem.An auto repair shop charged a customer $510 to repair a car. The bill listed $60 for parts and the remainder for labor. If the cost of labor is $45 per hour, how many hours of labor did it take to repair the car?
A. 11 hr B. 10.5 hr C. 10 hr D. 9 hr
Find the linear factorization of the polynomial and find all roots of the polynomial. f(x) = x4 - 6x3 + 33x2 - 150x + 200
A. f(x) = (x - 2)(x - 4)(x2 + 25), roots: 2, 4, ± 5i B. f(x) = (x - 2)(x - 4)(x + 5i)(x - 5i), roots: 2, 4, ± 5i C. f(x) = (x - 2)(x + 5)(x - 4i)(x + 4i), roots: 2, - 5, -4i D. f(x) = (x + 5)(x - 4)(x - 2i)(x + 2i), roots: - 5, 4, -2i