Answer:
7/10
Step-by-step explanation:
You are trying to isolate the variable (n) so you would subtract 7.4 on both sides. Therefore n=5.3-7.4 which equals -2.1
Answer:
2.2 Solve : 3x-20 = 0
Add 20 to both sides of the equation :
3x = 20
Divide both sides of the equation by 3:
x = 20/3 = 6.667
x = 20/3 = 6.667
Y = mx + n
m = Slope
To two lines be perpendicular to each other the slopes need to meet the condition: ma x mb = -1
y = 2x + 5
ma = 2
D: y = -1/2x + 5
mb = -1/2
ma x mb = -1
2 x -1/2 = -1
2/1 x -1/2 = -1
-2/2 = -1
-1 = -1
It's true.
Answer: D.
Recall that cos = adj / hyp, yields cosx = 21 / 29.
