hello ....
the equation of a plane that is ; ax+by+cz +d =0
the vector perpendicular to this plane is : V(a,b,c)
in this exercice ; a = -4 b= -4 c = -1
then: the equation of a plane that is ; -4x-4y-z +d =0
but the plane passing through the point (−2,−5,5) :
-4(-2)-4(-5)-(5) +d =0
23+d =0
d =-23
the equation of a plane is : -4x-4y-z-23 =0
Use the cos rule
cos^-1(18^2+28^2-12^2 divided by 2*18*28
Which is 16.99 degrees, which is 17 (option d)
Answer:
Your answer is 10
Step-by-step explanation:
So if you have to pay 55 out front and then continue to pay 19.50 monthly the equation will look like this:
19.50*m + 55 = x
(M stands for month)
She has 250 dollars to spend so add that in for x
19.50*m + 55 = 250.
Use inverse operations.
250-55 and 55-55
19.50*m = 195
195/19.50 and 19.50/19,50
m=10
Your answer is 10
652/0762
GFC:⅔¾⅚
YAN PO
Step-by-step explanation:
HOPE IT HELPS
4 = (-8) + 3x
Firstly, you can rearrange the equation to make it easier to read:
3x - 8 = 4
Add 8 on both sides to isolate the x:
3x = 12
Divide both sides by 3:
x = 4
