Determine what kind of function might be used as a model for the data.
A. Quadratic: f(x) = ax2 + bx + c, a > 0
B. Linear: f(x) = mx + b
C. Polynomial, but neither quadratic nor linear
D. Quadratic: f(x) = ax2 + bx + c, a < 0
Answer: C
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Solve.Find the sum of the first 43 terms of the arithmetic sequence: 2, 4, 6, 8, . . .
A. 1935 B. 88 C. 1902 D. 1892
Multiply. Assume that all variables represent nonnegative real numbers.
A. 3m2 +
B. 3m2 + m + m
+
C. 3m2 - m + 3m
-
D. 3m2 + m + 3m
+
Write the quotient in the standard form.
A. - +
i
B. -
i
C. - -
i
D. -
i
Solve.The population growth of an animal species is described by where t is the number of months since the species was introduced. Find the population of this species in an area 40 month(s) after the species is introduced.
A. 840 B. 5460 C. 2750 D. 430