Answer:
x=8 and y=2
Step-by-step explanation:
Mischa wrote the quadratic equation 0 = –x2 + 4x – 7 in standard form
The standard form of quadratic equation is

When y=0 then the standard equation becomes

Now we compare the given equation
with
and find the value of a, b,c
-x^2 can be written as -1x^2
a= -1 , b=4 and c=-7
The value of c is -7
18 - 7x = -20.5
Subtract 18 from each side:
-7x = -38.5
Divide both sides by -7:
x = -38.5 / -7
x = -5.5 = 5 1/2
The answer is D.
Answer:35/5 = 8.75$ per ticket
Step-by-step explanation:
Answer:
16777216
Step-by-step explanation:
64 times 64 equals 4096. 4096 to the power of 2 is 16777216.