x=y-8 z=x+12
0.5*8=.40
20.
explain how to evaluate an algebraic expression for given variables. how would we evaluate the expression "3x-4y+9" when x=2and y=5?
-11
If its 2a=8 then a= 4 If a=8 then a2=16 If 8=D then 8=====================================D
A2 + B2 = C2 If C=8, then A2 + B2 = 64
Evaluate -4(a+b) - 10a/b when a=8 and b=5
a2
To evaluate it you need to know both b and a. But it is possible to factorise it as follows: b2-a2 = (b-a)*(b+a)
x=y-8 z=x+12
8+6x = ? 8+6*5 = ? 8+30 = ?
0.5*8=.40
a=-2 4b=-2 --> b=-1/2 c=8 (-2)(-1/2)(8)(3)= 24
14
900
a^2 - 16 = 48 a^2 = 48 + 16 a^2 = 64 a = square root(64) a = +8 or -8