Solve the problem.The logistic growth function f(t) =  describes the population of a species of butterflies  after they are introduced to a non-threatening habitat. How many butterflies are expected in the habitat after 18 months?

A. 800 butterflies
B. 1800 butterflies
C. 14,400 butterflies
D. 651 butterflies


Answer: D

Mathematics

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Solve.Suppose two open flood channels have flow rates R1 and R2 given by R1 = 1500  and  R2 = 2500 where R1 and R2 are in cubic feet per second and m1 and m2 are the slopes of each channel, respectively. Find R1 + R2 if m1 = 0.09 and m2 = 0.16

A. 1450 ft3/sec B. 535 ft3/sec C. 1550 ft3/sec D. 4000 ft3/sec

Mathematics

Convert the units.36,960 feet =  miles

A. 184.8 B. 8 C. 7.5 D. 7

Mathematics

Multiply.11x5(8x7 + 10x3)

A. 198x12 + 198x8 B. 88x12 + 10x3 C. 88x12 + 110x8 D. 198x5

Mathematics

Find the indicated matrix.Let A =  and B = . Find AB.

A.
B.
C. not defined
D.

Mathematics