When the angle of elevation to the sun is 53 a tree casts a shadow that is 9 meter long. what is the height of the tree?

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

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)