Answer:
A
Step-by-step explanation:
This is how I write
y=kx+m
but I have seen some write it like this:
y=mx+b
Well both of them are the same thing, I'll use the first one because I'm more comfortable with it.
y=kx+m
To find out what k

So you first need to choose two points.
I'll go for (0,-5) and (2,0)


Now you could insert k into the equation and it will look like this.

To find out what m is just pick one point and insert it into the equation. So if I pick (0,-5). 0=X therefore it should be replaced by x and -5=y therefore it should also be replaced by y.

m=-5
Try it with another point to see if you get the same answer. this time I'll pick (-6,10)

m= -5
The equation will be y=-5/2x-5)
<span>-(-7-9-20)+(-3+11-21)
= 7 + 9 + 20 - 3 + 11 - 21
= 47 - 24
= 23</span>
100 - 3(3y - 4x) = 100 - 3(18 - 16) = 100 - 3(2) = 100 - 6 = 94
Answer:
28
Step-by-step explanation:
1/4 can be rewritten as 1 / (2^2)
or 2^-2.
using the 2nd form,
we have 2^-2 * 2^30 = 2^x
By exponent rule
2^28 = 2^x
So we can observe now that x = 28
This is a simple Pythagoras' theorem problem. If the length of the right angled triangle is 15ft and its width is 8ft, then its hypotenuse (x, the diagonal or the length of the pipe in this case) will be:

Therefore, your answer is B. The length of the pipe will be 17 feet.