Solve the problem.The half-life of silicon-32 is 710 years. If 30 grams is present now, how much will be present in 200 years? (Round your answer to three decimal places.)

A. 24.679
B. 4.257
C. 0
D. 29.42


Answer: A

Mathematics

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Multiply.x6y3(7x - 10y - 4)

A. x7y3 - x6y4 - x6y3
B. x7y3 - x7y4 - x6y3
C. - x6y3
D. x7y3 - x6y4 - 

Mathematics

Find the domain and the range of the function.

A. D: x < 10 or x > 10, R: y < 0 or y > 0
B. D: x <, R: y ? 0
C. D: x ? 10, R: y ? 0
D. D: All real numbers, R: y ? 0

Mathematics

Identify the quantities that are variable and the quantities that are constant.(the number of ounces in a pound of flour) ÷ (the number of guests at dinner)

A. number of ounces: constant; number of guests: variable B. number of ounces: variable; number of guests: variable C. number of ounces: constant; number of guests: constant D. number of ounces: variable; number of guests: constant

Mathematics

Solve.Write a polynomial in factored form that represents the total area of the figure.

A. (x + 2)(x + 6) B. x2 + 12 C. (x - 2)(x - 6) D. x2 + 8x + 12

Mathematics