Solve the problem. Write ratios in lowest terms.Bob is 35 years old, and Susan is 63 years old. Find the ratio of his age to hers.
A. 
B. 
C. 
D. 
Answer: B
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Find the indicated probability or percentage for the normally distributed variable.A machine produces bolts with a mean diameter of 0.30 inches and a standard deviation of 
The diameters are approximately normally distributed. What is the probability that a randomly selected bolt will have a diameter greater than 
A. 0.977 B. 0.023 C. 0.477 D. 0.046
Solve the problem.Raul, who is 1.50 m tall, wishes to find the height of a tree. He walks 19.55 m from the base of the tree along the shadow of the tree until his head is in a position where the tip of his shadow exactly overlaps the end of the tree top's shadow. He is now 6.57 m from the end of the shadows. How tall is the tree? Round to the nearest hundredth.
A. 0.50 m B. 5.96 m C. 4.46 m D. 2.26 m
Factor the trinomial completely.12x3 + 25x2 + 12x
A. x(12x + 1)(x + 12) B. x(4x - 3)(3x - 4) C. x(4x + 3)(3x + 4) D. (12x2 + 3)(x + 4)
Solve the rational inequality and graph the solution set on a real number line. Express the solution set in interval notation.
> 0
A. (-2, 8)
B. (-?, -2)
C. (8, ?)
D. (-?, -2) or (8, ?)