Answer:
s cm+s cm+s cm+s cm
Step-by-step explanation:
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.
Money is written with two places after the decimal. To round to the nearest scent, round to the hundredths place. In 0.1369 the 3 is in the hundredths place. Use the number directly after it, 6, to round. Because six is five or greater, it rounds the 3 up to 4. The answer is $0.14
Answer:
y=6x+8
Step-by-step explanation:
y=mx+b
-4=6(-2)+b
-4=-12+b
8=b
Answer:
8
Step-by-step explanation: