Solve the problem.Find the measure of an angle, if its supplement measures 28° more than twice its complement.
A. 28°
B. 38°
C. 62°
D. 56°
Answer: A
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Which of the following is not equivalent to the following function: f(x) = 4(x + 2)? ?
A. ?f(x) = 4x + 2 B. ?four times the quantity of the sum of a number and 2 equals some function value. C. ?four times a quantity of a number increased by 2 is equal to a function value. D. ?f(x) is equal to four times the sum of a number and 2. E. ?none of the above.
Solve the differential equation subject to the initial conditions.y' + y = 2ex; y = 20 when x = 0
A. y = 4e2 + 20e-x B. y = 2ex + 17e-x C. y = 20ex D. y = ex + 19e-x
Simplify the expression. The result will be one of sin x, cos x, tan x, cot x, sec x, csc x.
A. csc x B. sin x C. sec x D. cos x
Find the value.63 + 80 ÷ 42 × 72
A. 63 B. 19,663 C. 308 D. 438