First simplify the equation of parabola
in the following way:
.
You can see that if x=1 or x=2, then y=0. Two points of intersection with x-axis are (1,0) and (2,0).
-8 and +8 equal 0 since they cancel out. It's basically 8-8. So that leaves you with 0-(-7). The two negatives make a positive, now you're left with 0+7=7. Your answer is 7. Hope this helps :)
Answer:
$51.75
Step-by-step explanation:
Multiply 45.00 by 0.15 and you get 6.75
Once you get that add the 45.00 and the 6.75 to get 51.75 hope this helps
109.93 lbs
since the quantities vary directly, then
w(moon) = kw(earth ) ← ( k is the constant of variation )
to find k use the given condition
k = w( moon ) / w( earth ) = 
given w(earth) = 218.24
w(moon) = 
= 109.93
