Explanation

Supplementary angles are angles whose sum equals 180°. Of these choices, 115°, 65° is the only pair of angles whose sum is 180°.

What is \(4.7 \times {5^3}\) ?

\(\frac{10 !}{7 !}\) is equal to:

Evaluate the expression \(5a + 2b \times (3a - {b^2})\) , if a = –1 and b = 2.