Which of the following equations will produce the graph shown below? A. x^2/20+y^2/20=1
B.20x^2-20y^2=400
C.6x^2+6y^2=144
D. x^2+y^2=16

The amount of money, in dollars, in an account after t years is given by a = 1000(1.03)^t. the initial deposit into the account was $_^a0 and the interest rate was _a1% per year. only enter numbers in the boxes. do not include any commas or decimal points^t. the initial deposit into the account was $__^a0 and the interest rate is % per year.

Prove that quadrilateral is a rhombus.

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square