Find f(x) and g(x) such that h(x) = (f ? g)(x).h(x) =
A. f(x) = , g(x) =
B. f(x) = , g(x) =
C. f(x) = , g(x) =
D. f(x) = , g(x) =
Answer: A
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Which of the following is a weakness in using the mnemonic PEMDAS to teach order of operations?
a. Its spatial ordering leads students to believe that multiplication takes precedence over division. b. It fails to acknowledge that parentheses are just one type of grouping symbol among many c. Its spatial ordering leads students to believe that addition takes precedence over subtraction. d. All of the above e. None of the above
Convert the degree measure to radians, correct to four decimal places. Use 3.1416 for ?.-160°41'
A. -2.7945 B. -2.7745 C. -2.8045 D. -2.7845
Solve. Round all dollar amounts to the nearest cent, if necessary.A tax of $2674 is added to a bulk order's price of $38,200. Find the sales tax rate.
A. 14.3% B. 1.4% C. 0.7% D. 7%
Solve using a system of three linear equations.A real estate investor is examining a triangular plot of land. She measures each angle of the field. The sum of the first and second angles is 112° more than the measure of the third angle. If the measure of the third angle is subtracted from the measure of the second angle, the result is thrice the measure of the first angle. Find the measure of each angle. (Note: The sum of the angles of a triangle is 180°.)
A. First angle is 32°, second angle is 120°, third angle is 28° B. First angle is 26°, second angle is 118°, third angle is 32° C. First angle is 28°, second angle is 118°, third angle is 34° D. First angle is 34°, second angle is 114°, third angle is 32°