Nadia is placing different weights on a spring and measuring the length of the stretched spring. she finds that for a 100 gram weight the length of the stretched spring is 20 cm and for a 300 gram weight the length of the stretched spring is 25 cm. write an equation in point slope form that describes this situation. what is the unstretched length of the spring?

Assume that 1400 births are randomly selected and 1378 of the births are girls. use subjective judgment to describe the number of girls as significantly high, significantly low, or neither significantly low nor significantly high. choose the correct answer below. a. the number of girls is neither significantly low nor significantly high. b. the number of girls is significantly high. c. the number of girls is significantly low. d. it is impossible to make a judgment with the given information.

Negative 5 1/12 + negative 4 1/4 + 6 3/4

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).