Use the formula for Sn to find the sum of the first five terms of the geometric sequence. Round to the nearest hundredth, if necessary.
, 
, 
, 
, . . .
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.In a sample of 72 widgets, 8 were defective. How many defective widgets would you expect in a sample of 216 widgets?
A. 27 widgets B. 54 widgets C. 22 widgets D. 24 widgets
Solve the problem.How much will it cost to carpet a rectangular room measuring 
by 
if carpeting costs $30.05 per square meter?
A. $5048.40 B. $1562.60 C. $781.30 D. $10,096.80
Without solving, determine the character of the solutions of the equation in the complex number system.x2 + 4x + 7 = 0
A. two complex solutions that are conjugates of each other B. a repeated real solution C. two unequal real solutions
Solve the problem. Round to the nearest tenth if necessary.All 35 of the students in a mathematics class attended class on Monday. On Tuesday only 27 students attended. What was the percent of decrease?
A. 77.1% B. 22.9% C. 29.6% D. 70.4%