7x+3y=-1
x+y=-3
8x+4y=-4
2x+y=-1
y=-1-2x
x+y=-3
x-1-2x=-3
-x=-2
x=2
y=-1-2*2=-1-4=-5
Answer:
Step-by-step explanation:
force=mass × acceleration
20=5×a
a=20/5=4 m/s²
To solve this you will need to know the Pythagorean therum A^2+B^2=C^2
24^+B^2=28^2
576+B^2=784
-576. -576
B^2=208
Square root of 208 is about 14.42 and that is the length of the wall
Answer:
20952
Step-by-step explanation:
Answer:
I'm not sure if this is correct but i think 3.
12 divided by 4 is equal to 3.
