Fill in the blank with one of the words or phrases listed below.By the  property of equality, the same number may be added to or subtracted from both sides of an equation without changing the solution of the equation.

A. addition
B. multiplication
C. evaluating the expression
D. distributive


Answer: A

Mathematics

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Calculate the given quantities if a = i-9j and b = -9j+8k.

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Find the center, radius, and intercepts of the circle.x2 + y2 - 2x + 2y - 10 = 0

A. (h, k) = (1, -1), r = 2
x-int: x = 1 ± ; y-int: y = -1 ± 
B. (h, k) = (1, -1), r = 2
x-int: x = -1 ± ; y-int: y =1 ± 
C. (h, k) = (-1, -1), r = 2
x-int: x = 1 + ; y-int: y = -1 + 
D. (h, k) = (-1, 1), r = 12
x-int: x = 1 + ; y-int: y = -1 + 

Mathematics

Divide.

A. 3x2 - 6- 6 + 
B. 3x2 - 6- 6 + 
C. 3x2 - 24- 24 +  
D. 3x3 - 6x2 - 6+ 

Mathematics

Establish the identity.sin ?[sin ? + sin(5?)] = cos(2?)[cos(2?) - cos(4?)]

What will be an ideal response?

Mathematics