Which statement describes the definition of a function?
2 answers:
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Answer:
On a coordinate plane, the x-axis is labeled Perimeter of a square, and the y-axis is labeled Side length of a square. A line goes through points (4, 1), (8, 2).
Step-by-step explanation:
Let
x ----> the perimeter of the square
y ---> the side length of the square
Remember that
The perimeter of the square is given by the expression
where
b is the length side of the square
solve for b
That means
A ordered pair in the coordinate plane following the rule
(x,y) -----> (x,x/4)
The y-coordinate is equal to the x-coordinate divided by 4
y=x/4
therefore
On a coordinate plane, the x-axis is labeled Perimeter of a square, and the y-axis is labeled Side length of a square. A line goes through points (4, 1), (8, 2).
Because
For the point (4,1)
substitute in the linear equation the value of x
y=4/4=1 ----> is ok
For the point (8,2)
substitute in the linear equation the value of x
y=8/4=2 ----> is ok
Answer:
a.) the probability that both the ball drawn are black =
b.) Sum of all the probabilities =
Step-by-step explanation:
a) two balls are drawn at random .
total number of balls = 10
number of black balls = 5
number of white balls = 5.
the number of ways two balls can be drawn =
the number of ways two black balls can be drawn =
the probability that both the ball drawn are black =
b) probability that First draw of two black balls =
probability that first draw is of two white balls is and second draw is of
two black balls =
Probability that first two draws are of white balls and the third draw is of
two black balls =
This is a geometric sequence and the final probability will be the sum of
all such probabilities, where we can take the the sequence to be an infinite series and the first term is and the common ratio is
which is less than 1.
Sum of all the probabilities =