Find the indicated sum. Find the sum of the first 8 terms in the geometric series 3 - 6 + 12 - . . .
A. -255
B. 765
C. -765
D. -257
Answer: A
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Solve the problem.A store has a sale on workout gear. Mark bought three pairs of shorts and three T-shirts for $70.35 (before tax). Later, he went back and bought two more pairs of shorts and four more T-shirts for $63.90 (before tax). How much did the shorts and T-shirts cost?
A. shorts: $8.50; T-shirts: $14..95 B. shorts: $8.45; T-shirts: $15.05 C. shorts: $14.95; T-shirts: $8.50 D. shorts: $15.05; T-shirts: $8.45
Approximate the number rounded to three decimal places, and truncated to three decimal places.
A. 1.445 1.444 B. 1.444 1.444 C. 1.444 1.445 D. 1.445 1.445
Solve the quadratic equation by completing the square.x2 - 10x + 23 = 0
A. 5 ± 
B. -10 ± 2
C. 10 ± 
D. -5 ± 
Find the amplitude of the function. y = 4 sin 3x
A. 
B. 4
C. 
D. 