Convert as indicated. When necessary, round to the nearest tenth of a degree.At a particular business it is required that the temperature be kept at 70° F, but the thermostat is calibrated in degrees Celsius. Find the temperature to be set.

A. 22.2° C
B. 21.1° C
C. 132.4° C
D. 158° C


Answer: B

Mathematics

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Solve by using the quadratic formula.3d + 1 + d2 = 0

A. -3 ± 
B. 3 ± 
C. -3 ± 
D. 3 ± 

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Find the limit . Hint: If x = rcos? and y = rsin?, then (x,y) --> (0, 0) if and only if r --> .

What will be an ideal response?

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Divide and write the answer in simplest form.- 1.4 ÷ 2

A. - 0.07 B. - 0.7 C. 7 D. - 7

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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 15 months?

A. 1,200 butterflies B. 12,000 butterflies C. 801 butterflies D. 440 butterflies

Mathematics