Answer:B is correct one
Step-by-step explanation:
Answer:
x^2 - 2x + 5 = 0.
Step-by-step explanation:
The (0, 5) is the point where the parabola passes through the y axis (where x = 0), so we can write the equation as
y = ax^2 + bx + 5 where a and b are constants to be found.
Also, since (1, 4) and (2, 5) are points on the curve, substituting, we have the system:
a(1)^2 + 1b + 5 = 4
a(2)^2 + 2b + 5 = 5
Simplify these 2 equations:
a + b = -1 .................(1)
4a + 2b = 0..................(2)
Multiply the first equation by -2:
-2a - 2b = 2 .................(3)
Add (2) + (3):
2a = 2
a = 1.
Substitute a = 1 into (2):-
4*1 + 2b = 0
2b = -4
b = -2.
Answer:
C
Step-by-step explanation:
A has nothing to do with the paper inside and B and D don't matter bc its the first student
Answer:
32km
Step-by-step explanation:
speed=96km/h
time=20mins=1/3hour
<h3>Distance=Speed×Time</h3>
➜96×1/3
➜96/3
➜32km
Answer:
Interest rate ≈ 3.48%
Step-by-step explanation:
