All rhombuses have 4 right angles

Is the product of seventeen negative numbers, positive or negative ?

Look at this expression. a3b3c a-3b-3c-1 which of the following is the simplest form of the expression above?

20 points! asap! a is known to be 6,500 feet above sea level; ab = 600 feet. the angle at a looking up at p is 20°. the angle at b looking up at p is 35°. how far above sea level is the peak p? find the height of the mountain peak to the nearest foot. height above sea level =