Answer:
b = 4
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 ) = (2, 5 ) , then
y = a(x - 2)² + 5
to find a substitute any point on the parabola into the equation
using (0, 1 ) then
1 = a(0 - 2)² + 5 ( subtract 5 from both sides )
- 4= a(- 2)²= 4a ( divide both sides by 4 )
- 1 = a
then
y = - ( x - 2)² + 5
= - (x² - 4x + 4) + 5
= - x² + 4x - 4 + 5
= - x² + 4x + 1 ← in the form ax² + bx + c
with b = 4
Answer:
26,250
Step-by-step explanation:
25,000 + 5% = 26,250
:) please mark Brainliest
Suprising saying other site names is actually *random gibrish that nobody can understand and so the admin bots delete the question for no reason*
Answer:
$5.25 if returned 7 days late
Step-by-step explanation:
So we know that 4 days late is 3 dollars
We can find the unit rate
3/4 is 0.75
So 75 cents for every late day
Now we just multiply that by 7
0.75*7=5.25
so 7 days, 5.25
**porportional relationship equation**
=
Now cross multiply
21=4x
x=5.25
Same results
I think it is y3+z3
hope i helped
