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Answer:
<em>The value of y when x has a value of 9 is 18</em>
Step-by-step explanation:
<u>Functions</u>
The variables x and y are said to have a quadratic relationship. That information is not enough to set up a general equation for both variables.
Furthermore, we know that tripling the value of x causes the value of y to be multiplied by 9. That leads us to establish a proportional equation between them, as follows:
Where k is an unknown constant.
Let's use the given point (3,2) to find the value of k:
Solving for k:
The equation is now:
Now find y when x=9:
The value of y when x has a value of 9 is 18
Answer:
About 18.5 feet
Step-by-step explanation:
The circumference of a circle can be found using:
c=d
We know d, or diameter is 6, so we can plug that it
c=6
Multiply
c=18.8495559215
Rounded to the nearest hundreth
c=18.50 feet
The circumference is about 18.5 feet