Answer:
C
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
here (h, k) = (5, 2), thus
y = a(x - 5)² + 2
To find a substitute (4, - 3) into the equation
- 3 = a + 2 ⇒ a = - 3 - 2 = - 5
y = - 5(x - 5)² + 2 ← in vertex form
Expand (x - 5)² and distribute by - 5
y = - 5(x² - 10x + 25) + 2
= - 5x² + 50x - 125 + 2
= - 5x² + 50x - 123 ← in standard form
you need to find to find the value of x and y.
2x>(-15-5y)
x>(-15-5y)/2
now put this in to other equation and solve for y and then put the y value in and find x.
Answer:
B - 13
Step-by-step explanation:
I think its A
Hope its help for your questions
Answer:
It will take 4 years to deplete the account.
Step-by-step explanation:
Prudential Reality has an escrow account that contains $20,000.
The client withdraws $5000 now and that leaves $15000.
After one year an amount of $4500 is withdrawn which leaves ($15000 - $4500) = $10500
After two years an amount of $4000 is withdrawn which leaves ( $10500 -$4000) = $6500.
After three years an amount of $3500 is withdrawn which leaves ( $6500 - $3500) = $3000
After four years an amount of $3000 is withdrawn which leaves ($3000 - $3000) = $0 in the account.
Hence it will take 4 years to deplete the account.
