In the diagram, the radius of the outer circle is 5cm and the area of the shaded region is 16π cm^2. what is the radius or the inner circle?

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?

Plz ( true - false) all triangles have interior angles whose measure sum to 90.