• Placement Questions

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(#M40110279) EXAM QUESTION Keep an EYE

The cost, in millions of dollars, to remove x% of pollution in a lake modeled by
C = 6,000/ 200 - 2x.

2nd question: What is the cost to remove 90% of the pollutant?

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(#M40110278) EXAM QUESTION Keep an EYE

(4x)2=9/16

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(#M40110277) EXAM QUESTION Keep an EYE

Write the equation of the line L satisfying the given geometric conditions.
1. L has y-intercept (0, -3) and is parallel to the line with equation= 2/3x+1

2. L has y-intercept (0, 2) and is perpendicular to the line with equation 2x-3y=6.

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(#M40110276) EXAM QUESTION Keep an EYE

Burundi has a population of 7548000 in 2008, it has a growth rate of 3.9%, what is the approximate population in 2012? I cannnot find a formula to work this. Is there one specific for growth? thanks in advance for your help!!!

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(#M40110275) EXAM QUESTION Keep an EYE

Bonnie has 41 1/2 ft. of string. She wants to cut it into pieces 3 3/4 ft long.
How many pieces of string will she have? How much string remains, if any?
a) 12 1/17
b) 15 2/7
c) 13 1/5
d) 11 1/15

help me please

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(#M40110274) EXAM QUESTION Keep an EYE

Rewrite the equation 4x – 10y = 11 as a function of x.

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(#M40110273) EXAM QUESTION Keep an EYE

Find the sum or difference.

14. 7/15 - 13/15

Any help with this equation would be GREATLY</b> appreciated.

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(#M40110272) EXAM QUESTION Keep an EYE

12. 7(ac+2b)+ 2ac
13. 3(x=2y)+4(3x+y)

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(#M40110271) EXAM QUESTION Keep an EYE

Use Cramer's rule to solve the linear system.
-2x+3y=4
3x=-5y+51

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(#M40110270) EXAM QUESTION Keep an EYE

Subtract, using the vertical method.

7x² +6x from 9x² -3

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