Simplify completely.
A. a - b
B. a - 2b + 1
C. 
D. 
Answer: A
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Is the function graphed below one-to-one?
A. No B. Yes
Solve the problem. Use 3.14 as an approximation for ? where appropriate.A spherical tree ornament is to be painted in bright colors. If the ornament has a diameter of 2 cm, how much paint is needed?
A. 50.4 cm2 B. 33.5 cm2 C. 12.6 cm2 D. 16.8 cm2
Simplify.81 ÷ (-9) + (-9)
A. -18 B. -27 C. 18 D. 0
Solve the problem, rounding the answer as appropriate. Assume that "pure dominant" describes one who has two dominant genes for a given trait; "pure recessive" describes one who has two recessive genes for a given trait; and "hybrid" describes one who has one of each.Two hybrids produce a litter of four offspring. What is the probability that exactly one is pure recessive?
A. .133 B. .211 C. .25 D. .422