Two vectors A and B, are added together to form the vector C = A+ B. The relationship between the magnitudes of these vectors is given by: Cx = –A cos 30° – B and Cy = A sin 30°. Which statement best describes the orientation of the vectors A and B?

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.

What is the mass of the water that is being heated? it requires 2,500 joules to raise a certain amount of water (c = 4.186 jig c) from 20.0°c to 60.0°c. o 159 o 40 g o 63 g o 80 g