Find a V vector that is perpendicular to the plane determined by the points P(1,2,3), Q(-1,3,2) and R(3,-1,2) and hence find the area of a triangle.

Arectangular exercise mat has a perimeter of 36 feet the length of the mat is twich the width writeand solve an equation to determine the length in feet. of the mat then find the area in square feet of the mart

If angle 2=3x +1 and angle 3=2x +4what is angle 2

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed