Use the square root method to solve the equation. y2 = 5
A. 
B. 25
C. ±
D. 2.5
Answer: C
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Graph the parametric equation for the given interval. Add arrows to show how the curve is traced out. x = t + 1, y = (t - 1)2; 0 ? t ? 3
A. 
B. 
C. 
D. 
Evaluate the algebraic expression for the given value or values of the variable(s).3x2 + 7y;
x = 4 and y = 9
A. 271 B. 621 C. 207 D. 111
Use Bayes' rule to find the indicated probability.Two stores sell a certain MP3 players. Store A has 34% of the sales, 5% of which are of defective items, and store B has 66% of the sales, 1% of which are of defective items. The difference in defective rates is due to different levels of pre-sale checking of the product. A person receives a defective item of this product as a gift. What is the probability it came from store B?
A. 0.275 B. 0.22 C. 0.5667 D. 0.7083
Solve the problem.How many 2-letter codes can be formed using the letters A, B, C, D, E, F, G, H, and I. Repeated letters are allowed.
A. 512 B. 36 C. 72 D. 81