If the sum of two numbers is 20 and the sum of their squares is 200, then the product of the numbers is
Pick one:
A) 40
B) 44
C) 100
D) 88
E) 48
according to the given conditions x+y = 20   and x^2+y^2 = 200   now (x+y)^2 = x^2+y^2+2xy   so 20^2 = 200 + 2xy   so xy = 200/2= 
<gadget id="calculator">200/2</gadget>
<output>100</output>
100   ANSWER:100
<result>C</result>
If the sum of two numbers is 20 and the sum of their squares is 200, then the product of the numbers is