V = 20 cm ^3
multiply 6 cm by 5 cm by 2/3 cm and your answer is 20cm^3
9 + 1/2 (7n - 26) - 8n
Expand brackets by multiplying by 1/2:
9 + 3.5n - 13 - 8n
Collect like terms:
4.5n - 4
Turn it into an equation:
4.5n - 4 = 0
Isolate 4.5n by adding 4 to both sides:
4.5n = 4
Divide both sides by 4.5 to get the value of n:
n = 8/9
6y - x = 12 //Solve for y.
6y = x + 12
y = x/6 + 2
Slope = m = 1/6
For the second which is perpendicular to line one has a slope of -6.
NOTE: Perpendicular line has negative reciprocal slope. 1/6 negative reciprocal would be -6.
Second line:
m = -6
point = (-1,2)
y - y1 = m(x - x1) //Plug in m and point in place of (x1,y1).
y - 2 = -6(x - -1)
y - 2 = -6x -6
y = -6x -6 +2
y = -6x - 4
//Hope it helps
I would be able to answer this question if you provided a picture for it!
