Perform the indicated operations and express as a
trinomial: (x + 4)(x
2) + 3x

Find the area of a trapezoid with bases 14 cm and 18 cm and height 10 cm. 160 cm2 140 cm2 180 cm2 126 cm2

Find the value of 1715⋅211.though these numbers aren't quite as nice as the ones from the example or the previous part, the procedure is the same, so this is really no more difficult. give the numerator followed by the denominator, separated by a comma.

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angles. measure need asap