The first several terms of a sequence are given. Find the indicated partial sum.-
,
, -
,
, . . . ; S5
A. -
B. -
C. -
D. -
Answer: A
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Use the graph of the rational function f to solve the inequality.Solve f(x) < 0
A. (-?, 3) B. (-?, 3) ? (4, ?) C. (-?, -3) D. (-?, -3) ? (-3, ?)
Classify the function as a polynomial function, rational function, or root function, and then find the domain. Write the domain in interval notation.h(x) =
A. rational function; (-8, ?) B. rational function; (-?, 0) ? (0, ?) C. rational function; (-?, ?) D. rational function; (-?, -8) ? (-8, ?)
Prepare a vertical analysis. Round percents to the nearest tenth of a percent. Rosie's Cleaning Service had a cost of goods sold of $44,000, operating expenses of $216,000, and net sales of $380,000.
A. Percent cost of goods sold = 11.6% Percent operating expenses = 68.4% B. Percent cost of goods sold = 68.4% Percent operating expenses = 11.6% C. Percent cost of goods sold = 56.8% Percent operating expenses = 11.6% D. Percent cost of goods sold = 11.6% Percent operating expenses = 56.8%
Solve the problem.Mary and her brother John collect foreign coins. Mary has twice the number of coins that John has. Together they have 135 foreign coins. Find how many coins Mary has.
A. 18 coins B. 45 coins C. 90 coins D. 81 coins