Solve the problem.The cost of manufacturing a molded part is related to the quantity produced during a production run. When 100 parts are produced, the cost is $300. When 500 parts are produced, the cost is $3900. What is the average cost per part?

A. $7.20 per part
B. $0.11 per part
C. $9.00 per part
D. $10.00 per part


Answer: C

Mathematics

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A sample statistic and margin of error are given. Find the confidence interval likely to contain the population parameter of interest and answer the question.A poll conducted the day before the student-body presidential election at a midwestern university showed that 52.8 percent favored Mario, the rest favoring Yin Ling. The margin of error was 3.6 percentage points. Should Yin Ling have conceded the election?

A. 51% to 54.6%; yes B. 49.2% to 52.8%; no C. 49.2% to 56.4%; no D. 52.8% to 56.4%; yes

Mathematics

Graph the function.f(x) = |5x|

A.

B.

C.

D.

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Find the mean. Round to the nearest tenth.Value Frequency 12 1 19 4 25 7 30 3 33 3 38 3

A. 25.3 B. 7.5 C. 29.8 D. 27.0

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Determine the domain and range of the relation. State whether the relation is a function or not a function. 

A. domain: {Alice, Brad, Carl} range: {snake, cat, dog} not a function B. domain: {snake, cat, dog} range: {Alice, Brad, Carl} function C. domain: {snake, cat, dog} range: {Alice, Brad, Carl} not a function D. domain: {Alice, Brad, Carl} range: {snake, cat, dog} function

Mathematics