Rewrite the equation in the form y = A sin (x + ?). Round ? to three decimal places.y = 3 sin x - 4 cos x
A. 5 sin (x + 0.644)
B. 5 sin (x - 0.927)
C. 5 sin (x + 0.927)
D. 5 sin (x - 0.644)
Answer: B
Mathematics
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True or false?When using a truth table, the statement q ? ~p is equivalent to ~p ? ~q.
A. True B. False
Mathematics
Solve the problem.Seven slips of paper marked with the numbers 1, 2, 3, 4, 5, 6, and 7 are placed in a box and mixed well. Two are drawn. What are the odds that the sum of the numbers on the two selected slips is not 5?
A. 21 to 2 B. 9 to 1 C. 19 to 1 D. 19 to 2
Mathematics
Find the product.(a - 9)(a + 9)
A. a2 - 81 B. a2 - 18 C. a2 + 18a - 81 D. a2 - 18a - 81
Mathematics
Evaluate the expression for the given replacement values.xy for x = -5, y = -6
A. -30 B. 30 C. 1 D. -11
Mathematics