Use the definition or identities to find the exact value of the indicated trigonometric function of the acute angle ?.tan ? = 3 Find cos ?.
A. 
B. 
C. 
D. 
Answer: C
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Graph the function. Describe its position relative to the graph of the indicated basic function.f(x) = 3(1 - ex), x > 0; relative to f(x) = ex
A. Stretched vert; reflected across x-axis;
moved up 3 unit(s)
B. Stretched horiz; reflected across y-axis;
moved down 1 unit(s)
C. Stretched horiz; reflected across x-axis;
moved down 3 unit(s)
D. Stretched vert; reflected across y-axis;
moved up 1 unit(s)
Express as a single logarithm.4 log3 2 + 
log3 (x - 4) - 
log3 x
A. log3 
B. log3 
C. log3 
D. log3 
Krinkles potato chips is having a "Lucky Seven Sweepstakes." The one grand prize is $70,000; 7 second prizes each pay $7,000; 77 third prizes each pay $700; and 777 fourth prizes each pay $70. What is the expectation of this contest, if there are 6 million entries? Please round your answer to the nearest cent. ? $__________
Fill in the blank(s) with the appropriate word(s).
Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
A. y = 0.5x - 2 B. y = x - 8 C. y = 0.17x + 2.11 D. y = 0.11x + 2.49