Answer the question.Choose the expression that is equivalent to the following: 10x + 5y
A. 5(2x + 5y)
B. 5(2x + y)
C. 15xy
D. 5(5x + y)
Answer: B
Mathematics
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Find the gradient ?f.f(x, y, z) = 
A. (x2 + y2 - z2)(xi + yj - zk)
B. 
(xi + yj - zk)
C. 
(xi + yj - zk)
D. 
(xi + yj + zk)
Mathematics
Add or subtract as indicated. You will need to simplify terms to identify like radicals.4
+ 2
A. ( 4x + 2)
B. 4x2 + 2
C. ( 4x2 + 2)
D. ( 6x2)
Mathematics
Determine the two equations necessary to graph the horizontal parabola using a graphing calculator.x = 2y2 - 7y + 3
A. y = 
and y = 
B. y = 
and y = -
C. y =
and y = - 
D. y = 
and y = - 
Mathematics
Find the zero of the linear function.f(x) = 13 - x
A. -26 B. 13 C. -13 D. 1
Mathematics