The weighted average of the numbers -1 and 1, with weight 2/3 on the first number and 1/3 on the second number is 0.33
What is weighted average?
Weighted average is the sum of the two numbers multiplied by their respective weights, in other words, the weighted average can be determined using the below formula :
Weighted average=(first number*its weight)+(second number*its weight)_
weighted average=(1*2/3)+(-1*1/3)
weighted average=0.33
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Answer:
Step-by-step explanation:
A.27 (aka 3x3x3)
B.7x7x7x7
C4x4x4x4x4x4x4
D.5x5x5x5x5x5
E.9x9x9
F.8x8
G.12x12x12
H.1x1x1x1x1x1x1x1x1x1x1x1
I.8x8x8x8
J.6x6x6x6x6
K.12x12x12
L.18x18x18
Answer:
In the first one you are missing (x - 3) so it will be 4(x - 3) and if you factor it out it will be 4x - 12
In the second one you are missing a (x -5)which means 9x(x -5) or when you factor it out it will be 9x^2 - 45x
Step-by-step explanation:
3x^2 -23x + 40 = (3x - 8) (x - 5)
3x^2 -17x + 24 = (3x -8) ( x - 3)
