What value for y makes this equation true?

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.

The formula for the volume of a right square pyramid is given below, where a is the side length of the base and h is the height.

If cos(θ)=2853 with θin q iv, what is sin(θ)?