A spectator watches a rowing race from the edge of a river bank. The lead boat is moving in a straight line that is 110 ft from the river bank. If the boat is moving at a constant speed of 10 ft/sec, how fast is the boat moving away from the spectator when it is 600 ft past her?
?
Round the answer to the nearest hundredth, if necessary.
?
__________ ft/sec
Fill in the blank(s) with the appropriate word(s).
9.84
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Approximate the area under the curve using 10 inscribed rectangles and then using 10 circumscribed rectangles. Also find the exact area under the curve.y = 2x between x = 0 and x = 5
What will be an ideal response?
Form a polynomial whose zeros and degree are given. Use a leading coefficient of 1. Zeros: -5, -2, 2; degree 3
A. f(x) = x3 - 4x - 5x2 + 20 B. f(x) = x3 + 4x - 5x2 - 20 C. f(x) = x3 - 4x + 5x2 - 20 D. f(x) = x3 + 4x + 5x2 + 20
For the function find the maximum number of real zeros that the function can have, the maximum number of x-intercepts that the function can have, and the maximum number of turning points that the graph of the function can have. f(x) = 12 - x2
A. 1; 2; 2 B. 2; 2; 1 C. 2; 2; 2 D. 2; 1; 1
Solve the problem.The intensity I of light varies inversely with the square of the distance D from the source. If the intensity of illumination on a screen 5 ft from a light is 2 foot-candles, find the intensity on a screen 15 ft from the light.
A. 
foot-candle
B. 
foot-candle
C. 1
foot-candles
D. 2 foot-candles