Ill give brainlist and 98 points i guess?

Which of the following could be the ratio of the length of the longer leg 30-60-90 triangle to the length of its hypotenuse? check all that apply. a. 313 6 b. 3: 215 c. 18: 13 d. 1: 13 e. 13: 2 of. 3: 15

Simplify each expression. use positive exponents. show work . (x –2 y –4 x 3 ) –2

Pls math have no ideamultiply and simppify. 2x^2y^3z^2 • 4xy^4x^2