Which of these sets of ordered pairs satisfies an exponential equation? O {(1, -2), (3, -8), (5, -32), (7, -128)}
{(1, -2), (3, 2), (5, 6), (7, 10)}
O {(1, -1), (2, -8), (3, -27), (4, -64)}
O {(1, -1), (2, -4), (3, -9), (4, -16)}

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ac=26 and ch=8, find bh.