(2 + 3i) - (5 - 7i)
2 + 3i - 5 + 7i
2 - 5 + 3i + 7i
-3 + 10i - final answer
Answer:
y = (3 houses/month) x
Step-by-step explanation:
Let "x" represent the number of months Patty paints houses and "y" represent the number of houses Patty paints. We can represent the relationship between "x" and "y" using a linear equation, which has the following general expression.
y = m x
where "m" is the slope. In this case, the slope represents the number of houses Patty paints per month, that is, m = 3 houses per month.
The final linear equation is:
y = (3 houses/month) x
Answer:
348
Step-by-step explanation:
6 8 10 22 75 78 81 354
subtract the highest number to the lowest number
Answer:
4x² -4xy -4y -4
Step-by-step explanation:
In this case, a= 2x -y and b= y +2.
(2x -y)² -(y +2)²
= (2x -y +y +2)[2x -y -(y +2)]
= (2x +2)(2x -y -y -2)
= (2x +2)(2x -2y -2)
= 2x(2x) +2x(-2y) +2x(-2) +2(2x) +2(-2y) +2(-2) <em>(expand)</em>
= 4x² -4xy -4x +4x -4y -4
= 4x² -4xy -4y -4
Alternatively, start by expanding the brackets.
(2x -y)² -(y +2)²
= 4x² -4xy +y² -(y² +4y +4)
= 4x² -4xy +y² -y² -4y -4 <em>(</em><em>expand</em><em>)</em>
= 4x² -4xy -4y -4 <em>(</em><em>simplify</em><em>)</em>
Answer:
Step-by-step explanation: