richard predicted that the number of Mango tree x, planted in a farm could yieli y=-20x²+2800x mangoes per year. How many trees should be planted to produce the maximum number of Mango per year?​

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c =

Ineed on this question me get the answer