Determine if the two triangles are congruent

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if

Which will form a composite function?

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.