Answer:
The formula is 1/2 * b*h or b*h divided by 2
Step-by-step explanation:
36*4=144 -> 144/2=72.
Answer:
so the first one i think is 1 and the second one is 4
Step-by-step explanation:
Answer:
x = -10
Step-by-step explanation:
x + 75 + x + 125 = 180
2x + 200 = 180
2x = -20
x = -10
(In this problem a negative number is okay because the end value will be a whole number still.)
Answer:

Step-by-step explanation:
we are given
y varies directly as x
so, we can write equation as

where
k is constant of proportionality
We have
at x=-1 , y=6
so, we can use it to find k

so, we get

now, we can plug it back

now, we can plug x=5
and we get

