Regression Models — Cumulative exam Answers
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21
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The area of a square can be represented by the expression x10. Which monomial represents a side of the square?
A
x2B
x5C
x20D
x10022
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An exponential growth function has an asymptote of y = –3. Which might have occurred in the original function to permit the range to include negative numbers?
A
A whole number constant could have been added to the exponential expression.B
A whole number constant could have been subtracted from the exponential expression.C
A whole number constant could have been added to the exponent.D
A whole number constant could have been subtracted from the exponent.23
Marisol grouped the terms and factored the GCF out of the groups of the polynomial 6x3 – 22x2 – 9x + 33. Her work is shown.Step 1: (6x3 – 22x2) – (9x + 33)Step 2: 2x2(3x – 11) – 3(3x + 11)
A
Marisol should realize that her work shows that the polynomial is prime.B
Marisol should go back and group the terms in Step 1 as (6x3 – 22x2) – (9x – 33).C
Marisol should go back and group the terms in Step 1 as (6x3 – 22x2) + (9x – 33).D
Marisol should refactor the expression in Step 2 as 2x2(3x + 11) – 3(3x + 11).24
Which expression is equivalent to ?
A
StartFraction x Superscript one-half baseline Over y z squared EndFraction
B
StartFraction x Superscript one-half baseline Over y Superscript one-fourth Baseline z squared EndFraction
C
StartFraction y Superscript one-half Baseline Over x z squared EndFraction
D
StartFraction x z squared Over y Superscript one-half EndFraction
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