It rises 11 degrees
Step by step explanation
Answer:

Step-by-step explanation:
A quadratic equation has one root if the discriminant is 0.
That is we need
for this particular question.
Compare the following to find
:


The variable
is representative of the variable
here.



Plug in into
:


Subtract 4 on both sides:

Divide both sides by 16:

Reduce:

Answer:
28.35
Step-by-step explanation:
71/60. You change the denominators(bottom numbers) to 60 because that is the smallest number that both 10 and 12 can go into. Then you just add.
sorry if this is wrong but i think the answer is 21