Use the special right triangle to evaluate sin 45°, cos 45° and tan 45°. your answers should be exact (not a decimal).
a. sin 45 = √2/2, cos 45 = √2/2, tan 45 = 1
b. sin 45 = 1, cos 45 = 1, tan 45 = √2/2
c. sin 45 = 1/2, cos 45 = √3/2, tan 45 = √3
d. sin 45 = 0, cos 45 = 1, tan 45 = 0

Recall the definition of a polynomial expression. find two polynomial expressions whose quotient, when simplified,is. use that division problem to determine whether polynomials are closed under division. then describe how theother three operations-addition, subtraction, and multiplication-are different from division of polynomials.

This is so hard and it’s for a test

Roger could feed 5 walruses with 4 kilograms of fish. how many walruses could he feed with 7.2 kilograms of fish?