Express the polynomial z^2-z^4+2z^2 in standard form and then classify it.

Is the power produced directly proportional to the wind speed, give reasons for your answer?

The anwser cause i do not understand just plez

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