Mark is solving the equation 4x2 = 12x - 9 using the quadratic formula.

which values could he use for a, b and c?

question 6 options:

a. a = 4, b = 9, c = -12

b. a = 4, b = -12, c = 9

c. a = 4, b = 12, c = -9

d. a = 4, b = -9, c = 12

Find dy/dx using implicit differentiation ln(20+e^xy)=y

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account.write an expression to represent the total amount in his savings account.

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?