How much money should be invested in an account that earns 9% interest, compounded monthly, in order to have $13,000 in 4 years?

Computation of the money that has to be invested:

Hence, the money that has to be invested is $8,303.10...

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.