Simplify the expression. Assume all variables represent positive numbers.
- 
+ 
A. 
B. - 
C. 
D. 
Answer: D
Mathematics
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Find all values of a for which f(a) is the indicated value.f(x) = 
- 
; f(a) = 4
A. 8 B. - 2 C. 1 D. 2
Mathematics
Simplify the expression.
A. 
B. 
C. a + 5
D. a - 5
Mathematics
Solve the equation.4[6x + 6 + 3(x + 1)] = -7x - 7
A. 
B. 
C. 
D. 
Mathematics
Shade the solution set in the xy-plane.(x + 5)2 + (y - 3)2 ? 4
A. 
B. 
C. 
D. 
Mathematics