Given:
The polynomial function is

Yuri thinks that
is a root of the given function.
To find:
Why
cannot be a root?
Solution:
We have,

If
is a root, then the value of the function at
is 0.
Putting
in the given function, we get




Taking LCM, we get


Since the value of the function at
is not equal to 0, therefore,
is not a root of the given function.
Answer:
3 minutes
Step-by-step explanation:
Let's say that the bathtub is 15L
It would take 7.5 mins to fill 15L
15L/7.5 = 2L per minute
The other tap would take 5 minutes to fill 15L
15L/5 = 3L per minute
3L per minute + 2L per minute = 5L per minute
15L/5L per min = 3 minutes
Sorry for the delay. Accidentally pressed the answer button without the answer. Hope I helped.
Answer:
No solution
Step-by-step explanation:
If you were to do elimination, both the x and the y would cancel out and get 0=1, which is not true. And if you were to do it as substitution, then it would still get an answer that doesn't make sense.
Answer:
There are 10 boys because there are double girls which would be 20 to make 30.
Step-by-step explanation: