This is the concept of algebra, to get the slope of the line we need to rewrite the equation in slope intercept form y=mx+c, where m=slope, c=y-intercept.
Therefore re-writing our expression in slope-intercept form we get:
7x-3y=10
-3y=-7x+10
y=7/3x-10/3
The slope=7/3
hence we conclude that the slope of the line perpendicular to this is -3/7
Answer:
Step-by-step explanation:
Answer:
n=11
Step-by-step explanation:
n/2 (2*4 + (n-1)*3) = 209
1/2 (3n^2+5n) = 209
3n^2+5n-418 = 0
(3n+38)(n-11) = 0
n=11
Hope it helps you .....
Answer: the answer is c
Step-by-step explanation:
Answer:
C. x=-4.5
Step-by-step explanation:
To solve, you need to Isolate the variable
To do this, you need to get rid of the -2.9 next to the x
Do this by adding (it cancels out the -2.9 on the left side) 2.9 to the WHOLE EQUATION.
This leaves you with x=-4.5 or C