Answer:
D.12
Step-by-step explanation:
The first thing is to determine the two integer sets, which we will start with the number 1, therefore the first would be:
{1,2,3,4}
We know that it has a number in common, which in this case would have to be 4, therefore, the other set would be:
{4,5,6,7}
Therefore the sets are:
{1,2,3,4}; {4,5,6,7}
Now to calculate the difference between the sum of the integer between them it would be:
(5 - 3) + (6 - 2) + (7 - 1)
= 2 + 4 + 6
= 12
The answer then would be D.12
Answer:
Step-by-step explanation:
We need to factor out numerator and denominator in order to simplify the rational expression by cancelling common factors.
Numerator : x^3 - 4 x = x (x^2 - 4) = x (x - 2) (x + 2)
Denominator (factoring by grouping):
x^2 - 5 x + 6 = x^2 - 3 x - 2 x + 6 = x (x - 3) - 2 (x - 3) = (x - 3) (x - 2)
Then we can cancel out the common factor (x - 2) in both numerator and denominator, leading to:
x (x + 2) / (x - 3) = (x^2 + 2)/ (x-3)
Answer:
2150 maybe
Step-by-step explanation:
Answer:
(9,3)
Step-by-step explanation:
4(.25x + .5y = 3.75) → x + 2y = 15
(4x – 8y = 12) → x – 2y = 3
2x = 18
Divide both sides by 2
x = 9
Substitute x = 9 into x + 2y = 15
9 + 2y = 15
Subtract 9 from both sides
2y = 6
Divide both sides by 2
y = 3
Solution
(9, 3)
