Use the graph to solve the equation. Then solve the equation by factoring.x2 - 2x - 35 = 0

A. -5, 5
B. -5, 7
C. x = -7, -5, 5, 7
D. -5


Answer: B

Mathematics

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A. 29
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C.
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Solve the problem.If f(x, y) = (2000ey)/(1 + /2) represents the population density of a planar region on Earth, where x and y are measured in miles, find the number of people within the rectangle -9 ? x ? 9 and -4 ? y ? 0.

A. 4000(1 - e-4) ln 5 ? 9416
B. 4000(1 - e-4) ln  ? 6694
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D. 8000(1 - e-4) ln  ? 13,388

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Find the standard deviation for the given data. Round your final answer to one more decimal place than that used for the observations.The pH of a patient's blood:7.41, 7.43, 7.36, 7.41, 7.35

A. 0.070 B. 0.032 C. 0.001 D. 0.080

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Identify the type of sampling described by the proposal.A writer for an art magazine randomly selects and interviews fifty male and fifty female artists.

A. cluster sample B. stratified sample C. simple random sample D. systematic sample E. convenience sample

Mathematics