Find the square root. When necessary, round to nearest thousandth.
A. 1.419
B. 1.414
C. 2.000
D. 1.411
Answer: B
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Solve the system of equations by elimination, if a solution exists.
A. x = 1, y = 1 B. x = 1, y = 0 C. x = 0, y = 1 D. No solution
Find an equation of the parabola described and state the two points that define the latus rectum.Focus at (0, 3); directrix the line y = -3
A. y2 = 16x; latus rectum: (7, 8) and (-7, 8) B. x2 = 12y; latus rectum: (6, 3) and (-6, 3) C. x2 = 12y; latus rectum: (3, 6) and (-3, 6) D. x2 = 16y; latus rectum: (8, 3) and (-8, 3)
Solve the problem.A product of two oscillations with different frequencies such as f(t) = sin(10t) sin(t)is important in acoustics. The result is an oscillation with "oscillating amplitude." src="https://sciemce.com/media/4/ppg__tttt0523191219__f1q44g4.jpg" alt="" style="vertical-align: -4.0px;" /> last two functions constitute an "envelope" for the function g(t). For certain values of t, the two cosine functions in g(t) cancel each other out and near-silence occurs; between these values, the two functions combine in varying degrees. The phenomenon is known (and heard) as "beats." For what values of t do the functions cancel each other?
What will be an ideal response?
the product f(t) of the two oscillations as a sum of two cosines and call it g(t).
a graphing utility, graph the function g(t) on the interval 0 ? t ? 2?.
the same system as your graph, graph y = sin t and y = -sin t.
Identify the equation without completing the square.3x2 + 2y2 + 7x - 4 = 0
A. parabola B. circle C. ellipse D. hyperbola