Answer:
Graph and solved
Step-by-step explanation:
Answer:
c = 53 miles
Step-by-step explanation:
Answer: Option a.
Step-by-step explanation:
Make the denominator equal to zero and solve for x, as following:
To solve the quadratic equation you can factor ir. You must find two numbers whose sum is 8 and whose product is 9. These would be -1 and 9.
Then you have:
Therefore, based on this, you can conclude that the function is continuous at everty real number except x=1 and x=-9.
In x^2=9, you have to square root it, but there's a catch - it's a plus or minus with the square root because it can either be 3 or -3 in this scenario, so
x= +-3=+- sqrt(9)
In x(x-1)=9, we have x^2-x=9 when expanding, which turns into x^2-x-9=0. Using the quadratic formula, we have x=(1+-sqrt(1+36))/2, which is (1+-sqrt(37)/2) for x, and that has 2 solutions given the plus and minus.
For the third one, we have x^2-6x-9=0. Factoring it, we get (x-3)^2=0, and that clearly has only one answer - x=3
Answer: Good luck my friend I have no idea
Step-by-step explanation: