16,000 paid
8 years passed
12,000 returned
-4000 difference
-4000/16,000 x 100%
-25% (Answer)
Answer:
y = 2(x+5)²- 60
Step-by-step explanation:
f(x) = ax² +bx +c, is the standard form
f(x) = a(x - h)² +k , is the vertex form where the (h, k) is the vertex
y = 2x²+20x -10 ,
factor 2 from the two terms
y = 2(x² +10x) -10,
what perfect square has x² +10x? ... x²+10x +25 = (x+5)²
y = 2(x²+10x+25 )- 50 -10,
add 25 in parenthesis to get a perfect square yet subtract 2*25 = 50 so the equation will stay the same
y = 2(x+5)²- 60,
the equation has the vertex at (-5, -60)
C the instant at which the airplane takes off
Answer:
6/12 or 1/2 which is 0.5
Step-by-step explanation:
I hope this is right, because I'm doing this stuff as well in class.
Slope is always rise over run. It is rising by 6 and it is running (going across) by 12. This fraction (6/12) can be simpiled to 1/2 and that can be narrowed down to 0.5.
Hope this is clear and correct.
Answer:
9x -3 = 1(9x -5)
Step-by-step explanation:
