Answer:
A. 2.9
B.121.6
C.3.34
D. (sorry i don't know this one.
E.i don't know this one either
F.24.61
Perpendicular lines have slopes that multiply to -1
y=mx+b
slope=m
y=5x+3
5=slope
5 times what=-1
divide both sides by 5
what=-1/5
the equation of a line that passes through the point (x1,y1) and has a slope of m is
y-y1=m(x-x1)
given
m=-1/5
point=(-1,-1)
y-(-1)=-1/5(x-(-1))
y+1=-1/5(x+1)
y+1=-1/5x-1/5
y=-1/5x-6/5
1/5x+y=-6/5
x+5y=-6
the euation is
y+1=-1/5(x+1) or
y=-1/5x-6/5 or
x+5y=-6 (all same equation but different forms)
Hello!
this problem comes with a slightly complex math equation that I had to ask my math teacher about, so I hope it helps.
<span>The expression n! means "the product of the integers from 1 to n"
</span>this can be said for any variable
say n is the total and r is the 2-letter combo
C(n,r<span>)=13!/</span>(2!(13−2)!)
If you use this equation, you will get a final answer of: 78
I hope this helps, and have a nice day.
Answer:
8x-4y=-4
-3x+4y=5
+
-----------------(adding equation)
5x=9
is a required answer
