Please help Find the values for c so that t^2 + ct + 81 = 0 has one real root.
12 + ct + 81 = 0

answer: what are the answer choices?

step-by-step explanation:

my apex says that it is false

8.75

how-to:

first, we need to find what we have to work with.

since i know that we have 7 (years) and 0.8 (inches), we can use these to solve and find the equation!

secondly, what you want to do, is see that we need to know how much growth out of the 0.8 inches he got in only 1 year, instead of 7 years.

let's try to divide.

7 ÷ 0.8 = 8.75