Find the value of the following expression (17-9)×(3×2)÷3

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

Hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone

What is the value of the discrimination for the quadratic equation 0=×2+2+×2