A quadratic equation with a negative leading coefficient has a vertex at the point (−5, 6). What can be said about the nature of its roots?

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?