Write the set using set-builder notation.{. . ., -3, -2, -1, 0, 1, 2, 3, . . . }
A. {x?x is a natural number}
B. {x?x is any integer greater than -3}
C. {-3, -2, -1, 0, 1, 2, 3}
D. {x?x is an integer}
Answer: D
Mathematics
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Factor the trigonometric expression.sin2x + 4 sin x - 45
A. (sin2 x + 9)(sin x - 5) B. (sin x - 45)(sin x + 1) C. (sin x - 9)(sin x + 5) D. (sin x + 9)(sin x - 5)
Mathematics
Use a graphing calculator to solve the equation.2x2 + 9 = 9x
A. 
, 3
B. -3, 
C. 3, 6
D. -3, - 
Mathematics
Find the function value.For f(x) = |x - 9|, find f(5).
A. 4 B. 13 C. -13 D. -4
Mathematics
Let v be the vector from initial point P1 to terminal point P2. Write v in terms of i and j.P1 = (2, 6); P2 = (-6, -1)
A. v = -8i - 7j B. v = 8i + 7j C. v = 7i + 8j D. v = -7i - 8j
Mathematics