Multiply and simplify.
? 
A. 
B. 
C. - 
D. - 
Answer: D
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Solve the following equation for Z: Z(Z + 8) = 80
a. ÚÄÄÄÄÄÄÄÄÄ û8(10 - Z) b. 80 - 8Z c. 80 - Z
Divide the real numbers. Write any improper fraction as a whole or mixed number where appropriate.-4
÷ 4
A. -1
B. -1
C. -1
D. -2
Determine if the following is a function or not. The set of ordered pairs {(animal, zebra), (bird, sparrow), (flower, tulip), (tree, maple)} from the set {animal, bird, tree, flower} to the set {zebra, sparrow, tulip, maple}
A. Yes B. No
Solve the problem.Several years ago, a large city undertook a major effort to encourage carpooling in order to reduce traffic congestion. The accompanying table shows the number of carpoolers, in thousands, from 1995 to 2000. Use regression to obtain a function src="https://sciemce.com/media/4/ppg__file0518192109__f1q28g4.jpg" style="vertical-align: -15.0px;" />
A. f(x) = 4.29 + 5.14 ln x
B. f(x) = 4.22 + 5.25 ln x
C. f(x) = 4.40 + 5.32 ln x
D. f(x) = 4.33 + 5.17 ln x
that models the data, where 
corresponds to 1995, 
to 1996, and so on. Round the constants a and b to the nearest hundredth.