Find the domain of the given function.f
= 
A. (-?,3] ? [3,?)
B. All real numbers
C. (-?,0) ? (0,?)
D. [0,?)
Answer: C
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Find the solution to the system by addition (elimination) method.7x + 27y = 27 6x - 3y = -3
A. (0, 1) B. (1, 1) C. (1, 0) D. (0, 0)
Factor: 2a2 + 8a + 6
a. 2a(a + 8) b. 2(a2 + 8a + 16) c. 2(a2 + 4a + 6) c e. 2a(a + 6)
Solve.The output voltage for an AC generator is approximated by v = 156 cos 
. Find the smallest positive value of t for which the output is 82 volts.
A. t = 0.0110 B. t = 0.0120 C. t = 0.0045 D. t = 0.0055
Let u represent src="https://sciemce.com/media/4/ppg__tttt0516191133__f1q109g7.jpg" style="vertical-align: -17.0px;" /> - 
, v represent 
, and w represent 
. Solve first for u, v, and w. Then solve the system of equations. 
+ 
- 
= 0 
- 
= - 
- 
- 
- 
= - 
A. 
B. 
C. (-3, 2, -6)
D. (-3, 2, 6)