For the given graph: a) In words, describe the function shown on the graph. b) Find the slope of the graph and express it as a rate of change (be sure to include units). c) Briefly discuss the conditions under which a linear function is a realistic model for the given situation.
What will be an ideal response?
a) On a long trip, distance from home increases with time.
b) 80 miles per hour.
c) Good model if speed is constant for 8 hours.
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Which of the following expressions is equivalent to 
? (a ? ?n, where n is a whole number)
?
A. sin t (2 - 2 csc2t) B. cos t (2 csc2t - 2) C. cos t (2 - 2 csc2t) D. sin t (2 csc2t - 2) E. tan t (2 csc2t - 2)
Find any relative extrema.f(x, y) = 4xy - x2y - xy2
A. No relative extrema
B. f(
, 
) = 1.185, relative maximum
C. f(0, 0) = 0, relative minimum
D. f(
, 
) = 2.37, relative maximum
Use the standard normal curve table to find the z-score for the given condition.82.89% of the total area is to the left of z.
A. -0.95 B. -0.96 C. 0.95 D. 0.96
Write the complex number in rectangular form.10.83(cos 30° + i sin 30°)
A. 9.4 + 5.4i B. 2.8 + 1.6i C. -2.8 - 1.6i D. 5.4 + 9.4i