That'd be 10^3 * 6*10^(-3), or just 6.
Answer:
<em>The ball will take 8.90 seconds to hit the ground.</em>
Step-by-step explanation:
The height of a ball after t seconds is given by:

Determine how long will the ball take to hit ground level. Since the gound is 40 meters below the throwing point:

Rearranging:

Simplifying by 5:

Solving the quadratic equation with the formula:

With a=1, b=-8, c=-8


There are two solutions:
t=8.90 sec, t=-0.90 sec
Due to the nature of the problem, t cannot be negative, thus:
The ball will take 8.90 seconds to hit the ground.
Answer:
-12 degrees.
Step-by-step explanation:
We remember that to calculate the average, we must add all values, then divide by the amount of values.
This means the first 4 days sum to -8 while the first 5 days sum to -20. Therefore, on the fifth day, the temperature was -12 degrees.
Answer:
4 sqrt 2
Step-by-step explanation:
Answer:
x/7-10<-6
x divided by 7 minus 10 is less than -6