Answer:
Step-by-step explanation:
2x+3x=4
5x=4
x=4/5
They have 136 cans left.
175+58-97=?
175+58=233
233-97=136
Answer: 138
Step-by-step explanation:
Answer:
See explanation below to use the vertex form to solve a quadratic equation.
Step-by-step explanation:
(x - h)^2 - k = 0, the vertex is (h, -k)
An example below, taking a quadratic equation and completing the square:
x^2 - 2x - 1 = 0
x^2 - 2x = 1
(-2/-2)^2 = 1, add 1 to both sides of the equation.
x^2 - 2x + 1 = 1 + 1
(x - 1)^2 = 2
(x - 1)^2 - 2 = 0
The vertex is (1, -2)
A set whose elements belong to a given set : subset
a number that can be written as a ratio in faction form : rational number
a number in decimal form that does not terminate or repeat : irrational number
a number that can be written as an infinite decimal : real number
a collection or group of objects : set
a diagram that shows the relationship between sets : venn diagram
an object that belongs to the set : element
