Which set of vertices forms a parallelogram? A.
A(2, 4), B(3, 3), C(6, 4), D(5, 6)

B.
A(-1, 1), B(2, 2), C(5, 1), D(4, 1)

C.
A(-5, -2), B(-3, 3), C(3, 5), D(1, 0)

D.
A(-1, 2), B(1, 3), C(5, 3), D(1, 1)

Pick the expression that matches this description: a polynomial of the 5th degree with a leading coefficient of 7 and a constant term of 6 (choice a) 7x^5+2x^2+6 (choice b) 7x^6−6x^4+5 (choice c) 6x^7−x^5+5 (choice d) 6x^5+x^4+7

Drag the tiles to the correct boxes to complete the pairs. match the cart-coordinates with their corresponding pairs of y-coordinates of the unit circle

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.