cho hình chóp S. ABCD có đáy ABCD là hình vuông tâm O, cạnh a, SA vuông góc với mặt đáy và SA=3A. Gọi M, N lần lượt là trung điểm của SC, SD. Thể tích khối tứ diện SOMN là

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

Arecipe calls for 2 2/4 cups of raisins, but julie only has a 1/4 measuring cup. how many 1/4 cups is needed to measure out 2 2/4 cups of raisins?

Consider this equation. |y + 6| = 2 what can be concluded of the equation? check all that apply. there will be one solution. there will be two solutions. the solution to –(y + 6) = 2 will be also be a solution to the given absolute value equation. the solution(s) will be the number(s) on the number line 2 units away from –6. the value of y must be positive since the variable is inside absolute value signs.