First simplify the square roots:

Then simplify the last two terms:

Since 61 is prime, you can't take a rational root out of it.
Solve for the x-max or h :\

plug it in to equation to get k:/

-8+16+3=11=k

solve for a by pluging (0,0)
then a= -11/4
Answer:
Step-by-step explanation:
um i no but i can not tell u
Answer:
1/15
Step-by-step explanation:
When multiplying two numbers, a person can mentally add one of those numbers the other number amount of times.