Solve the problem using the quadratic formula.The cumulative number (in thousands) of deaths from a certain disease from 2000 to 2010 is modeled by 
where x = 0 corresponds to 2000, x = 1 to 2001, etc. Use the formula for A to estimate symbolically the year when the total number of deaths reached 130 thousand.
A. 2007
B. 2009
C. 2008
D. 2006
Answer: D
Mathematics
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Solve the problem.To obtain a certain shade of paint, Peter mixed 
of white paint with 
of brown and 
of blue paint. How much paint did he have?
A. 
gal
B. 12
gal
C. 3
gal
D. 
gal
Mathematics
Add or subtract. Then simplify. If a denominator has two or more factors (other than monomials), leave it in factored form. Express the answer using the denominator of the first fraction when applicable.
+ 
A. 
B. 
C. 
D. 
Mathematics
Determine the nature of the system of equations.
A. Consistent with independent equations B. Inconsistent with independent equations C. Consistent with dependent equations
Mathematics
Complete the ordered pair for the given equation.y = -4x - 15(-3, )
A. (-3, 60) B. (-3, -3) C. (-3, 3) D. (-3, -15)
Mathematics