Use an identity to write the expression as a single trigonometric function or as a single number.
A. tan 26°
B. sin 26°
C. cot 26°
D. cos 26°
Answer: A
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Simplify the expression. Assume that variables represent nonzero numbers.(w3)2(5w3)
A. 5w9 B. w8 + 5 C. 5w18 D. 5w8
Determine whether the ordered pair is a solution for the given equation.y = 9 - x, (4, 5)
A. Yes B. No
Evaluate the expression for the given value or values.
for x = -228, y = 0
A. -228 B. 228 C. 0 D. undefined
Find the x-intercepts of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. f(x) = -x2(x + 6)(x2 - 1)
A. 0, touches the x-axis and turns around; 6, crosses the x-axis; -1, touches the x-axis and turns around; 1, touches the x-axis and turns around B. 0, crosses the x-axis; -6, crosses the x-axis; -1, crosses the x-axis; 1, crosses the x-axis C. 0, touches the x-axis and turns around; -6, crosses the x-axis; -1, crosses the x-axis; 1, crosses the x-axis D. 0, touches the x-axis and turns around; -6, crosses the x-axis; 1, touches the x-axis and turns around