Answer:
28
Step-by-step explanation:
So this means to replace the r you see in 4r^2-8 with 3.
Let's do that:
4(3)^2-8
Now to simplify this just use pemdas or a calculator:
4(9)-8 since 3^2 means 3*3=9
36-8
28
Answer:
7
Step-by-step explanation:
8 units separate -4 and 4
8 divided by 2 (which is the x of slope) is four
Four times 1 (which is y of slope) equals four
3+4 equals seven
(4,7)
Answer:
12.5
Step-by-step explanation:
0.5x25=12.5. FILLER
Answer:
_20___ × (-1/2) × __2__ = -20
8 x (-1/2) x 5= -20
Step-by-step explanation:
Hope I helped