9x + 20y = 109x + 20y
9x = 109x
109x - 9x = 0
100x = 0
x = 0
Answer: 137π
The usual formula for a circle centered at (a,b), with radius r,
(x - a)² + (y - b)² = r²
The area of the circle is πr², so 137π
2x - 3 = 8
add 3 to both sides
2x = 11
divide both sides by 2
x = 5.5
The third graph represents a function.
In a function, every input (x value) has <em>exactly</em> one output (y value). If even a single input has zero or two outputs, the graph does not represent a function.
A good way of testing this is using a vertical line. As you move a vertical line from left to right across a graph, it should always be touching exactly one point on the graphed line.
In this case, every graph fails this vertical line test except for the third graph, so the third graph represents a function.
Answer:
8/12 or 66.6%
Step-by-step explanation:
If we have 12 sides to a die then there are 12 possible outcomes, as a result if the dice would have a total of 8 sides that is either 5 or more (5,6,7,8,9,10,11,12,) that means 8/12 of the dice would be a satisfy the outcome we are looking for and 8/12 is around 67%
