Answer:
- After 4 seconds the height is 480 meters.
- The maximum height is 484 meters.
- The ball hits the ground after 10 seconds
Step-by-step explanation:
The height after four seconds is h(4) = -16 * r² + 144*4+160 = 480
The maximum height of the ball is the value it takes at its vertex 'v = -b/2a'. In this case a = -16 and b = 144, so the v = -144/-32 = 4.5. The maximum height of the ball as a result is h(4.5) = -16 (4.5)² + 144*4.5 + 160 = 484
To find the moment the ball hits the ground, we need to find when h takes the value 0 by using the quadratic formula, with a = -16, b = 144 and c = 160.

Since t cant take negative values, then the correct value is 10. The ball hits the ground after 10 seconds.
The slope of the LM curve is the coefficient of Y, k over h, or the income sensitivity of demand for real money over the interest sensitivity of demand for real money. This ratio is important for monetary policy.
Add 26 and 73 = 99 then divide 99 by 6 = 16.5 which is 17 vases