Answer:
Greatest Common Factor: integer or variable multiplied by other integers or variables that creat a resultin product. factor x factor = product
difference of squares binomial: an expression where two perfect square terms are being subtracteda² - b² = (a+b)(a-b)quadratic: from "quad" meaning square, because the variable gets squared (like x2).
discriminant: tells you about the roots of a quadratic
general form: y = a(x - h)^2 + kstandard form: ax^2 + bx + c = 0root: a solution of an equation
zero: a value that gives you 0 for a function
x-intercept: where the graph crosses the x-axis
y-intercept: where the graph crosses the y-axis
extraneous: a solution that does not work
parabola: the graph of a quadratic
vertex: the turning point of the parabola
axis: line of reflection
translation: movement up/down and left/right of any parabola from standard position (f(x) = x2)
The basics of what you should know
Step-by-step explanation:
Can get brainiest pls
Answer:-9
Step-by-step explanation:
Just Add them
Let
x = cost of a ticket for a senior
y = cost of a ticket for an adult
z = cost of a ticket for a student.
The first student buys 2 senior, 1 adult, and 2 student tickets for $51.
Therefore
2x + y + 2z = 51 (1)
Th second student buys 1 adult and 5 student tickets for $5.
Therefore
y + 5z = 55 (2)
The third student buys 2 senior, 2 adult, and 7 student tickets for $75.
Therefore
2x + 2y + 7z = 75 (3)
Answer:
The system of equation for determining x, y, and z is
2x + y + 2z = 51
y + 5z = 55
2x + 2y + 7z = 75
Warnng: The system of equations does not have a solution.
4 minutes
Set up 2 equations and solve
let b represent time taken to ride around block and
let n represent time taken to ride around neighbourhood, then
10b + n = 24 → (1)
5b + 2n = 18 → (2)
multiply (1) by - 2
- 20b - 2n = - 48 → (3)
add (2) and (3) term by term to eliminate n
- 15b = - 30 ( divide both sides by - 15 )
b = 2
substitute b = 2 into (1) and solve for n
20 + n = 24 ( subtract 20 from both sides )
n = 4
Thus it takes 4 minutes to ride around the neighbourhood
