Solve the system by elimination.
- 
= -18
+ 
= -9
A. {(12, 0)}
B. {(0, -12)}
C. {(-12, 0)}
D. {(0, 12)}
Answer: C
Mathematics
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Verify that the equation is an identity.sin(x + y) - sin(x - y) = 2 cos x sin y
What will be an ideal response?
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Solve the equation.
= 5 - 2x
A. 
B. 
C. {5}
D. 
Mathematics
The function f has multiplicative growth with factor k.Find C and b such that f(x) = Cbx given f(1) = 8 and k = 
.
A. C = 
, b = 18
B. C = 8, b = 
C. C = 18, b = 
D. C = 
, b = 8
Mathematics
Write an equation of the line with the given slope, m, and y-intercept (0, b).m = - 
, b = 8
A. y = 
x + 8
B. y = - 
x + 8
C. y = 
x - 8
D. y = - 
x - 8
Mathematics