Multiply and simplify.
? 
A. - 
B. - 
C. - 
D. - 
Answer: C
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Assuming that the equations define x and y implicitly as differentiable functions 
find the slope of the curve 
at the given value of t.2x + 4x3/2 = t3 + t, y(t + 1) - 4t
= 25, t = 0
A. 10
B. - 
C. -5
D. -10
Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.The following graph shows that more and more people in a certain country are moving from urban cities to the suburbs. The percent, p, of the population living in urban cities can be estimated by the equation 
and the percent of the population living in the suburbs by the equation
In both equations, t represents the number of years since 2000. That is, 
/> corresponds to 2000, 
corresponds to 2001, and so on. Assuming this trend continues, use both equations to estimate the year in which the percent of the population of this certain country living in urban cities will be equal to the percent living in the suburbs.
A. 2015
B. 2011
C. 2013
D. 2019
Graph the quadratic function using its properties. Based on the graph determine the domain and range of the quadratic function.f(x) = -x2 - 6x - 5
A. domain: {x|-? < x < ?}
range: {y|y ? 4}
B. domain: {x|-? < x < ?}
range: {y|y ? 4}
C. domain: {x|-? < x < ?}
range: {y|y ? -4}
D. domain: {x|-? < x < ?}
range: {y|y ? -4}
Determine whether the Law of Sines or the Law of Cosines should be used to begin to solve the given triangle. Do not solve the triangle. 
A. Law of Sines B. Law of Cosines