If a problem asks you to “Find a formula . . . “ you might begin by
(a) drawing a sketch of the problem situation.
(b) understanding the terms used in the problem.
(c) looking for relationships between known quantities and the unknown quantity.
(d) making a tables of values, using n as the unknown quantity.
(e) trying any one of the above.
(e) trying any one of the above.
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Evaluate.Evaluate -a + b + (-9) for a = -15 and b = 11.
A. 35 B. 17 C. -13 D. 13
Factor out the greatest common factor.2x2 - 18x
A. 2(x2 - 9x) B. 2x(x - 9) C. x(2x - 18) D. 2x(x - 9x)
Suppose that ln 2 = a and ln 5 = b. Use properties of logarithms to write each logarithm in terms of a and b.ln 10
A. ab B. a - b C. ln a + ln b D. a + b
Solve.A dairy produces 
of milk each day. There are 
in a gallon. How many gallons of milk are produced each day?
A. 32,500 gal B. 3250 gal C. 520,000 gal D. 325,000 gal