In right triangle ABC, ∠A and ∠B are complementary angles and sin A = . What is cos B?

Given abcd ac=38 and ae=3x+4 find the value of x

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares

Find the domain and range of the following function f(x) = 51x - 21+ 4