Factor the trinomial square and use the square root method to solve the equation.
A. 
B. 
C. 
D. 
E. 
Answer: D
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The area of the triangular swimming pool shown in the illustration is doubled by adding a rectangular wading pool. Find the width of the pool (x).
(The area of a triangle = 
, and the area of a rectangle = lw).
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?
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Please enter your answer as a number without the units.
Fill in the blank(s) with the appropriate word(s).
Find the x- and y-intercepts of f.f(x) = -x2(x + 6)(x2 - 1)
A. x-intercepts: -6, -1, 0, 1; y-intercept: 0 B. x-intercepts: -1, 0, 1, 6; y-intercept: 0 C. x-intercepts: -6, -1, 0, 1; y-intercept: -6 D. x-intercepts: -6, 0, 1; y-intercept: -6
Graph the parabola or ellipse. Include the directrix that corresponds to the focus at the origin.r = 
A. 
B. 
C. 
D. 
Solve the problem.Suppose that a hair dryer operates on a voltage that can be represented by the relation 
and that it draws a current represented by the relation 
where t is time measured in seconds. The power consumed by the appliance is P = VI. Graph the power in 
by 
and use an identity to write the expression for the power in the
form 
where a, k, and d are constants.
A. P = 400 cos(120?t) + 400
[0, 0.04, 0.01] by [-200, 2000, 200]
B. P = 800 cos(240?t) + 800
[0, 0.04, 0.01] by [-200, 2000, 200]
C. P = -400 cos(240?t) + 400
[0, 0.04, 0.01] by [-200, 2000, 200]
D. P = 400 cos(240?t) + 400
[0, 0.04, 0.01] by [-200, 2000, 200]