Answer:
80
Step-by-step explanation:
10+4+2+4=20 and 20×4 numbers=80
Carlos factored incorrectly because he didn't simplify the trinomial like Sophie did. They both will have the same answer, but Carlos needs to simplify before factoring.
Answer:
(0,0)
Step-by-step explanation:
the x coordinate for the vertex is at the line of symmetry
ax^2 +bx+c
the line of symmetry is at h =-b/2a
x^2 =12y
divide by 12
1/12 x^2 = y
a = 1/12 b=0 c=0
h = 0/(2* 1/12)
h =0
to find the y coordinate, substitute x=0 back in
y = 1/12 * 0 = 0
the vertex is (0,0)
Using a system of equations, we can determine that each adult ticket costs $45 and each child ticket costs $28.
