Half of the product of two consecutive numbers is 105. which equation can be used to solve for n, the smaller of the two numbers?
n^2 + n – 210 = 0
n^2 + n – 105 = 0
2n^2 + 2n + 210 = 0
2n^2 + 2n + 105 = 0

Driving 75 mph, it takes alicia 2 hours to reach the airport to go on a vacation. it then takes her 4 hours to get to her destination with the jet traveling at a speed of 400 mph. how many miles does alicia travel to get to her destination?

Need solving this second acceleration problem.

The trigonometric ratios sine and secant are reciprocals of each other