<span>the line through points (-1,-2) and (5,3)
slope=(3-(-2))/(5-(-1))=5/6
for a perpendicular line slope =-6/5=-1.2
y=(-6/5)x+b
7=(-6/5)*3+b
7=-18/5+b
7=-36/10+b
7=-3.6+b
b=10.6
y=-1.2x+10.6</span>
Answer:
C. X=6 or X= -9
First Explanation:
2x + 3 - 3 = 15 - 3 (subtract 3 from 3 and 15)
You should get 2x = 12
Then divide 2x by 2
Divide 12 by 2 which you should get
X = 6
Second Explanation:
2x + 3 - 3 = 15 - 3 (subtract 3 from 3 and 15)
You should get 2x = -18
Then divide 2x by 2
Divide -18 by 2 and you should get
X = -9
Answer: 1384.74
Step-by-step explanation:
A=πr^2
radius=42/2=21
(3.14)(21)^2
3.14(441)
1384.74
Solution
For this case we need to find the number of cubes in the stack given so then we can do this:
The first line present 5 cubes
The second line present 5 cubes
And the last line we got:
10 cubes
Then the total of cubes are:
10 +5+5 = 20 cubes
If we need to find the number of faces we can do the following:
5+ 4+ 4+4 +4 +1 + (5+4+4+4+4+1 ) + (5+4+4+4+4+1 ) + (5+ 4+4+4 +4 )
And solving we got:
22+22+ 22+21= 87
