Evaluate the determinant.
a. –72
b. –71
c. –70
d. –74
a. –72
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Find the coordinates of the labeled points.
A. G(3, 7); H(5, -7) B. G(3, 5); H(7, 5) C. G(3, 7); H(-7, 5) D. G(7, 22); H(5, -7)
Add or subtract.(4 - 9i) + (-4 + 9i)
A. -8 + 18i B. 8 - 18i C. -8 - 18i D. 0
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
Perform the operations indicated.(3x - 8) + (2x + 9)
A. 6x2 - 72 B. 5x + 1 C. 5x2 + 1 D. 5x - 1