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Questions in Grade College

[Done] $8 x^2 y^2+4 x^2-12 x$

[Done] Which expression is equivalent to $7 a^2 b+10 a^2 b^2+14 a^2 b^3$? A. $a b\left(7 a^2+10 a b+14 b^2\right)$ B. $a^2 b\left(7+10 b+14 b^2\right)$ C. $7 a^2\left(b+3 b^2+7 b^3\right)$ D. $7 a^2 b^3\left(b^2+3 b+7\right)$

[Done] How did Gorski break up the relapse model of recovery? A. spiritual and multicultural domains of functioning B. environmental and social domains of function C. psychological and social domains of functioning D. psychological and spiritual domains of functioning

[Done] During the revision phase for an argumentative essay, a writer should A. create a clear argument. B. check the style and tone. C. write a strong conclusion. D. search for facts and evidence.

[Done] Which is the correct equation for calculating the kinetic energy of an object? [tex]KE=mgh[/tex] [tex]KE=\frac{1}{2}mv^2[/tex] [tex]KE=\frac{1}{2}at^2[/tex] [tex]KE=\frac{1}{4}g^2[/tex]

[Done] What is the solution to the following system? $\left\{\begin{array}{c} 4 x+3 y-z=-6 \\ 6 x-y+3 z=12 \\ 8 x+2 y+4 z=6 \end{array}\right.$ A. $x=1, y=-3, z=-1$ B. $x=1, y=-3, z=1$ C. $x=1, y=3, z=19$ D. $x=1, y=3, z=-2$

[Done] If the translation T maps point $A (-3,1)$ onto point $A ^{\prime}(5,5)$, what is the translation T ? A. $T_{<8,4>}$ B. $T_{<8,6>}$ C. $T_{\langle 2,4\rangle}$ D. $T_{\langle 2,6\rangle}$

[Done] Which property was used to simplify the expression? $3 c+9+4 c=3 c+4 c+9$ A. distributive property B. commutative property C. associative property D. inverse property

[Done] $y=\sin ^{-1}\left(\frac{1-x}{1+x}\right)$

[Done] Jeff, a regional short-haul driver, has already put in 14 hours of on-duty time. He now needs to drive 2 hours back home. What can a "Big Day" exemption do for him? A. It allows him to ignore how many hours of on-duty time he has for the day. B. He can take an extra day off because he had to work over-time. C. He can extend his on-duty time from 14 to 16 hours. D. He can borrow hours from the next day to create a longer day today.