Answer:
I can only help with a, witch is -3x
Step-by-step explanation:
im sorry i cant help with b, that one i cant even figure out, and im usually pretty good with math
i hope i helped you out a little bit at least
Answer:
Perimeter= 44.2 inches
Area= 70 inches squared
Step-by-step explanation:
Perimeter- Add all your sides together (10+ 17.2+2+3+7+5=44.2)
Area- 1/2bh (b=base, h=height)
Your base is the bottom of the triangle, so 2+7+5=14.
14 is your base
Your height is the 10
1/2 *14*10
1/2 of 14 is 7
7*10= 70
Don't forget to write inches squared or it will be wrong
Hope this helps :)
Any four sided shape with parallel sides and parallel top and bottom is a quadrilateral called a rectangle. A more narrow definition is then those with equal side lengths are called squares.
I think formula is y2-y1 divided by x2-x1 so if im correct
-5/-4
I'm assuming you're trying to solve for r.
First divide a to both sides
Now you have

= a - r
Subtract a to both sides.
And then divide by -1 to both sides.
Now your equation is -

+ a = r