<span>The question is asking you to find the
part of the graph
where the curve is greater than zero AND it's rising.
That looks like the interval from x=1.4 to about x=2.75 .</span>
-x^2 + 14 = 10
subtract 14 from each side
-x^2 = -4
divide each side by -1
x^2 =4
square root each side
x = 2
hope this helps!!! :)
Answer: After 8 hours the pressure will be at -60?
Explanation: not sure how the balloon can reach -60 kilopascals but 15% of 300 is 45 and 45 x 8(hours) is 360. 300 - 360 is -60
Quadratic formula since this trinomial is not factorable.
You can check your work by using a calculator or using another method to find the same answer to the same question. You could also ask a friend
Pleaze mark brainliest!!