Solve the problem.How many liters (L) of a 10% silver iodide solution must be mixed with 9 L of a 4% silver iodide solution to get a 6% solution?

A. 4.5 L
B. 5.5 L
C. 3.5 L
D. 9.0 L


Answer: A

Mathematics

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Solve the problem.In 1840 the population of a midwest city was 16,000. By 1870 it had grown to 17,000. If it continues to grow at the same rate, what will the population be in 1909? Give your answer to the nearest whole number.

A. 17,301 B. 18,300 C. 18,000 D. 17,001

Mathematics

Determine whether the given events are mutually exclusive.Wearing a coat and wearing a sweater

A. No B. Yes

Mathematics

Solve the equation by completing the square.x2 + 4x = 3

A. {-2 - 2, -2 + 2}
B. {-2 - , -2 + }
C. {-1 - , -1 + }
D. { 2 + }

Mathematics

List the x-values in the graph at which the function is not differentiable.

A. x = -1 B. x = 0 C. x = 2 D. x = 1

Mathematics