Find the quadratic approximation of f at x = 0.f(x) = tan-1 9x
A. Q(x) = 1 + 9x2
B. Q(x) = 1 - 9x2
C. Q(x) = 9x
D. Q(x) 1 + 
x2
Answer: C
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Approximate the value of the square root, rounded to the indicated place.
to 3 decimal places
A. 28.448 B. 809.000 C. 28.443 D. 28.440
Which of the following situations involves proportional reasoning?
a. Determining the number of inches a child has grown from one year to the next by looking at doctor's office data. b. Comparing schools by examining the percent increase in test scores at each school from one year to the next. c. Using key words in a word problem to conjecture that division of fractions must be done to solve it. d. All of the above e. None of the above
Graph the ellipse and locate the foci.
+ 
= 1
A. foci at (4, 0) and (-4, 0)
B. foci at (5, 0) and (-5, 0)
C. foci at (0, 
) and (0, -
)
D. foci at (
, 0) and (-
, 0)
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