Answer:
Step-by-step explanation:
So the equation is 1/x+1/y=1/7
Multiplying both sides by 7xy, we get
7y+7x=xy
So x+y=xy/7
Or x=-y+xy/7
So x can be:
1,2,3,4,5,6
Plane R and plane P intersect at AB.
Planes are when 3 points that are not on the same line can be used to describe a plane. Plane P is horizontal and Plane R is vertical and these 2 planes intersect at line AB. Intersecting is where these 2 planes meet, therefore line AB is common to both planes.
Answer:
Addition property
Step-by-step explanation:
Given the inequality:
5x - 9 < 91
The step to take here to move 9 to the other side, is to perform the addition property by adding 9 to both sides.
Thus,
5x - 9 + 9 < 91 + 9
5x < 100
The final step is to perform the division property by dividing both sides by 5, in order to solve for x.
5x/5 < 100/5
x < 20.
The point-slope form:
We have the points (-8, -8) and (-7, 9). Substitute to the formula of a slope:
Put the coordinates of the point (-7, 9) and the value of slope to the point-slope formula:
