One model for the spread of a rumor is that the rate of spread is proportional to the product of the fraction y of the population who have heard the rumor and the fraction who have not heard the rumor. (a) write a differential equation that is satisfied by y. (use k for the constant of proportionality.) = (b) solve the differential equation. assume y(0) = c. y = (c) a small town has 2000 inhabitants. at 8 am, 80 people have heard a rumor. by noon half the town has heard it. at what time will 90% of the population have heard the rumor? (do not round k in your calculation. round the final answer to one decimal place.) hours after the beginning

answer:

your tip would be $10.116.

step-by-step explanation:

the question is asking you what's 18% of $56.20

answer:

y = (2x + 3)(2x + 3) = (2x + 3)²

step-by-step explanation:

we are given a quadratic function and we have to write it in factored form.

y = 9 + 12x + 4x²

y = 4x² + 12x + 9

we can break the mid-term in such a way that when they are multiplied, the factors give a product of 36x² and when added, they give a result of 12x, as show below:

y = 4x² + 6x + 6x + 9

taking 2x common from the first two variables and 3 from the second two

y = 2x(2x + 3) + 3(2x + 3)

taking 2x+3 common

y = (2x + 3)(2x + 3) = (2x + 3)²

her 80% of shots is amazing! hope this !