Answer:
x^2 +4x+4 = 4
Step-by-step explanation:
To complete the square take the coefficient of the x term
4
Divide by 2
4/2 =2
Square it
2^2 =4
Add it to both sides of the equation
x^2 +4x+4 = 4
50 tickets for the students
20 for the adults tickets to make profit
Answer:
35%
Step-by-step explanation:
There is a 7 in 20 chance of the card being red
Answer:
13, _1 (12) (-2,3) 1 answer ...<em>by</em><em> </em><em> </em><em>maths</em><em> </em>