Find the sum or difference.(-8x5 + 2x7 + 9 + 3x6) - (8 + 8x6 + 5x7 + 5x5)
A. -3x7 + 11x6 - 3x5 + 17
B. -3x7 - 5x6 - 13x5 + 1
C. 7x7 + 11x6 - 3x5 + 1
D. 7x7 + 11x6 - 3x5 + 17
Answer: B
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Evaluate the expression by first changing the form. Verify the answer by use of a calculator. sin 25° cos 35° + cos 25° sin 35°
A. 
B. 
C. 
D. 
Solve the system by graphing. If there isn't a unique solution to the system, state the reason.8x + y = 0-8x + y = -16
A. (-1, 8) B. (1, -8) C. (-1, -8) D. (1, 16)
Solve the problem.Find two complementary angles such that the measure of the first angle is x°, and the measure of the second angle is (3x - 2)°.
A. 1st angle = 22°; 2nd angle = 64° B. 1st angle = 31°; 2nd angle = 59° C. 1st angle = 23°; 2nd angle = 67° D. 1st angle = 22°; 2nd angle = 68°
Solve the problem.The formula D = 8e-0.6hcan be used to find the number of milligrams D of a certain drug that is in a patient's bloodstream h hours after the drug has been administered. The drug is to be administered again when the amount in the bloodstream reaches 4 milligrams. What is the time between injections?
Fill in the blank(s) with the appropriate word(s).