16. Which of the following best describes the graph of a quadratic equation with
one real root?
F It has two x-intercepts.
G It does not cross the x-axis.
H Its vertex lies on the x-axis.
J Its vertex lies on the y-axis.

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?