Solve. Write the solution set using set-builder notation and using interval notation. Graph the solution set. -7 - 2a + 1 ? -3a - 10
A. {
a ? -4}; [-4, ?)
B. {a| a > -2}; (-2, ?)
C. {
a ? -4}; (-?, -4]
D. {
a < -2}; (-?, -2)
Answer: A
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You put a drink in the freezer to cool. When it is chilled, you take the drink out but, being forgetful, leave it sitting on the kitchen counter. The temperature D, in degrees, of the drink t minutes after it is put in the freezer is given by
?
.
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When is the drink the coldest, and what is its coldest temperature? Round your answers to two decimal places.
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A. It reaches its coldest temperature of 9.76 degrees after 25.76 minutes. B. It reaches its coldest temperature of 25.76 degrees after 9.76 minutes. C. It reaches its coldest temperature of 12.37 degrees after 29.30 minutes. D. It reaches its coldest temperature of 29.30 degrees after 12.37 minutes.
Write the expression in terms of sines and/or cosines, and then simplify.cos x + tan x sin x
A. csc x B. sec x C. sin x + cos x D. cos x + sin2 x
Find the area of the figure. Round to the nearest whole number unless otherwise directed in parentheses.
A. 204 in.2 B. 102 in.2 C. 96 in.2 D. 174 in.2
Provide an appropriate response.Use a graphing utility to find the discontinuities of the given rational function.g(x) = 
A. -1 B. 1 C. 3 D. Continuous at all values of x