Factor using the trial and error method.12x2 + 7x - 12
A. (12x + 4)(x - 3)
B. (12x - 4)(x + 3)
C. (3x + 4)(4x - 3)
D. (3x - 4)(4x + 3)
Answer: C
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Solve the problem.Write parametric equations for the tangent line to the curve of intersection of the surfaces 
and 
at the point 
A. 
B. 
C. 
D. 
Solve the problem.The Ideal Gas Law states that the pressure P of a gas obeys the function 
where n is the number of particles in the sample, T is the Kelvin temperature of the gas, V is the volume of the gas in liters, and k is the constant 1.38 × 10-23. Does the pressure have a local minimum along the line 
If so, what is the value
of the minimum pressure? Give reasons for your answer. Fill in the blank(s) with the appropriate word(s).
Provide an appropriate response.Explain why the decimal points must be lined up vertically when adding decimal numbers.
What will be an ideal response?
The table shows, for some particular year, a listing of several income levels and, for each level, the proportion of the population in the level and the probability that a person in that level bought a new car during the year. Given that one of the people who bought a new car during that year is randomly selected, find the probability that that person was in the indicated income category. Round your answer to the nearest hundredth. 
$10,000 - $14,999
A. .06 B. .05 C. .03 D. .02