Write the vector in linear combination form (also explain why my answer was wrong if you can pls)

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)