a triangular prism Has triple the volume than the volume of a rectangular prism, How is that possible?

What number must you add to complete the square x^2+12x=16

Landon wallin is an auto mechanic who wishes to start his own business. he will need $4400 to purchase tools and equipment. landon decides to finance the purchase with a 48-month fixed installment loan with an apr of 5.5%. a) determine landon's finance charge. b) determine landon's monthly payment.

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left