A person leaning off a cliff 230 meters above the ground shoots an object into the air with an initial vertical velocity of 30 meters per second. The equation h = -10t2 + 30t + 230 gives the height, h, of the object when it is in the air for t seconds. After how many seconds is the object at a height of 50 meters above the ground?

Which solid has two triangular bases and three lateral faces, each in the shape of a rectangle? triangular prism triangular pyramid rectangular prism rectangular pyramid

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

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)