Determine whether the statement is true or false. 22 ? {x|x ? N and 15 < x ? 25}
A. True
B. False
Answer: B
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Use the Pythagorean theorem to find the length of the third side of the right triangle. Leave any irrational answers in radical form.
A. 7 B. 9 C. 5 D. 10
Given that f(x) = sin x, g(x) = cos x, and h(x) = tan x, evaluate the given function. The point (x, 
), on the circle 
, also lies on the terminal side of an angle ? in quadrant II. The point 
, on the circle 
, also lies on the terminal side of an angle ? in quadrant III.f(2?)
A. 
B. - 
C. 
D. - 
Use the graph of y = 
to solve the equation 
where 
and y2 represent linear functions.
A. {5} B. {4} C. {-5} D. {0}
Find the focus and directrix of the parabola with the given equation.y2 = -28x
A. Focus: (0, 7), directrix: y = -7 B. Focus: (0, -7), directrix: y = 7 C. Focus: (7, 0), directrix: x = -7 D. Focus: (-7, 0), directrix: x = 7