Perform the indicated operation and simplify.
+ 
A. 
B. 
C. 3m - 5
D. 
Answer: A
Mathematics
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Write an equation. Then, solve and check.A pancake recipe calls for 3
pounds of flour. David already has 2
pounds of flour. How many more pounds does he need?
A. x - 2
= 3
; x = 6 lb
B. x - 2
= 3
; x = 
lb
C. 2
+ x = 3
; x = 6 lb
D. 2
+ x = 3
; x = 
lb
Mathematics
Find all numbers that must be excluded from the domain of the rational expression.
A. x ? 36 B. x ? 6 C. x ? -5 D. x ? 6, x ? -6
Mathematics
Find the product AB.A = [-1 2 4], B = 
A. [-21]
B. 
C. [30]
D. [-9 0 -12]
Mathematics
Solve the nonlinear system of equations.x2 + y2 = 85x + y = 13
A. {(-7, -6), (-6, -7)} B. {(7, -6), (6, -7)} C. {(7, 6), (6, 7)} D. {(-7, 6), (-6, 7)}
Mathematics