Use the REGRESSION feature on a graphing calculator.Since 1984 funeral directors have been regulated by the Federal Trade Commission. The average cost of a funeral for an adult in a Midwest city has increased, as shown in the following table.
Let x represent the number of years since 1980. Use a graphing calculator to fit a quartic function to the data. Round your answer to five decimal places.
A. y = -2.047489x2 + 212.82699x + 1879.85469
B. y = 170.5971x + 1991.5213
C. y = -0.04268x4 + 1.53645x3 - 16.76289x2 + 231.82723x + 1927.58518
D. y = -0.04268x4
Answer: C
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A card is drawn randomly from a standard 52-card deck. Find the probability of the specified event. The card is a heart picture card (the jack, queen, or king of hearts).
A.
B.
C.
D.
If a problem begins with “There are 200 people at a dance . . .”, an approach to solving the problem may be
(a) Draw a Picture. (b) Guess and Test. (c) Solve a Simpler Problem. (d) Deductive reasoning. (e) None of these is a good approach.
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.ln
A. ln x
B. x ln 10
C. 10ln
D. 10ln x
Find the intercepts for the equation.5x + y = 0
A. (0, 0); (0, 0) B. (0, 0); (0, 5) C. (0, 0); (0, -1) D. (-1, 0); (0, 0)