Answer:
D. y= -1/5x2, y= -1/3x2, y= -7x2
Step-by-step explanation:
The answer to this question is A $1.42 because the first customer paid $12 for 14 postcards
Your equation: 4x² - 100 = 0
Factor the left side: (2x + 10) · (2x - 10) = 0
This equation is true if either factor is zero.
-- One factor: 2x + 10 = 0
Divide each side by 2: x + 5 = 0
Subtract 5 from each side: x = -5 .
-- The other factor: 2x - 10 = 0
Divide each side by 2: x + 5 = 0
Add 5 to each side: x = 5 .
It would be: a = v₂-v₁ / t
a = (70-10) / 12
a = 60 / 12
a = 5 m/s²
So, option A is your final answer.
Hope this helps!
3.) (2,1), (4,2), (6,4), (7,5), (8,6)
