Answer:
18x
Step-by-step explanation:
9 times 2x is 18x.
Answer:
D it
Step-by-step explanation:
We have two equations, A quadratic and a linear equation.
The domain of a linear equation and quadratic equation is all real numbers but since it dealing with time we must make sure the roots or x-intercepts is positive.
Looking at the quadratic equation, we can use the discramnt formula to see if all roots are positve.



The discramnt is greater than zero so there is two distinct real roots. So let check if they are positve
If you graph the equation, it intercepts at two positve roots so it is D
An equivalent ratio would be 7:10 or 70:100 or 42:60 and so on...
Answer:
so
x = 6 over 5
Step-by-step explanation:
mark me brainliest if u have any doubt ask me
Answer:
What YOUR PROBLEM
Step-by-step explanation: