An arrow is shot vertically upward from a platform 45 feet high at a rate of 168 ft/sec. use the quadratic function h(t)=-16t^2+168t+45 to find how long it will take for the arrow to reach its maximum height, and then find the maximum height.

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?

Could someone me with this question i’ve been stuck on it for 20 minutes

Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?