Performance Task: Modeling with Sinusoidal Functions — Cumulative exam Answers
25 verified answers
21
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The quadratic regression equation y = –0.1x2 + 143.99x – 13,242.84 models expected company profits in terms of the number of pairs of shoes sold.Based on the regression equation, approximately how much profit can the company expect if it sells 400 pairs of shoes?
A
$28,400B
$28,400C
$41,600D
$41,600E
$44,300F
$44,300G
$60,400H
$60,40022
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Which function is shown in the graph below?
A
Option
B
Option
C
Option
D
Option
23
What is written as a single logarithm?
A
4 log Subscript one-half Baseline 2 Superscript 4 Baseline u squared minus v cubed
B
log Subscript one-half Baseline w Superscript 4 Baseline (StartFraction u squared Over v cubed EndFraction)
C
log Subscript one-half Baseline (StartFraction w Superscript 4 Baseline Over u squared v cubed EndFraction)
D
log Subscript one-half Baseline (w (StartFraction u squared Over v cubed EndFraction)) Superscript 4
24
A waterwheel has a radius of 5 feet. The center of the wheel is 2 feet above the waterline. You notice a white mark at the top of the wheel. How many radians would the wheel have to rotate for the white mark to be 3 feet below the waterline?
A
radians
B
radians
C
radians
D
radians
25
What is the quotient?
A
StartFraction 1 Over 2 y EnDfraction
B
StartFraction 3 y + 2 Over 6 y squared EndFraction
C
StartFraction 1 Over y EndFraction
D
StartFraction 2 (3 y + 2) Over 3 EndFraction
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