Minus 4x^2 both sides
25y^2=100-4x^2
divide both sides by 25
y^2=4-4x^2/25
I think it is 20 seconds because when you multiply six times x, you get twelve. And in this case, the x equals two. So, because you multiplied two to six, you do the same thing to the ten seconds, which is twenty. Sorry if this is the wrong answer.
Answer: increasing
Step-by-step explanation: The slope of the graph is positive.
For the trinomial to be a perfect square trinomial the coefficient for the x^2 term must. E a perfect square.
Letter C