Divide using long division.(x2 + 2x - 8) ÷ (x + 4)
A. x + 2
B. x2 + 3x - 4
C. x - 2
D. x2 - 2
Answer: C
Mathematics
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Solve the problem.A bacterial culture has an initial population of 10,000. If its population declines to 4000 in 4 hours, when will its population be 2530? Assume that the population decreases according to the exponential model.
A. after 5 hr B. after 7 hr C. after 9 hr D. after 6 hr
Mathematics
Express the number in scientific notation.4,200,000,000,000
A. 4.2 × 109 B. 4.2 × 1012 C. 4.2 × 10-12 D. 4.2 × 10-9
Mathematics
Find the exact value of the logarithm using logb bx = x.ln e3
A. 3 B. 2 C. 4 D. -3
Mathematics
Convert to decimal notation.2.0559 × 10-7
A. 0.0000020559 B. -205,590,000 C. 0.00000020559 D. 0.000000020559
Mathematics