The number of seconds it takes for the waste to hit the ground for the given function is: 5 seconds.
<h3>How to Evaluate a Function?</h3>
We are given the function of height to time as, h(t) = -16t² + initial height, and we have the following:
- h(t) = 0 (height of the ground is 0)
- t = seconds the waste takes to height the ground
- Initial height = 400 feet
Plug in the values into the equation of the function
0 = -16t² + 400
Solve for t
0 - 400 = -16t²
-400 = -16t²
-400/-16 = t²
400/16 = t²
√(400/16) = t
20/4 = t
5 = t
t = 5
The number of seconds it takes is: 5 seconds.
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The answer is 47.18181818
Substitute values and isolate v.
v^2 = u^2 + 2as
v^2 = 8^2 + 2(3)(19)
v^2 = 64 + 114
v^2 = 178
v = √178
v = about 13.3
Since the velocity isn’t exactly 13m/s, it cannot be A, so the correct answer is C.
Answer:
0.7070707070 is not an irrational number
Step-by-step explanation:
Irrational numbers cannot be expressed as a ration. These numbers are non repeating and non terminating. For example π is an irrational number.
In the given number 0.7070707070, we can see that 70 is repeating and it terminates as well.
Therefore, from the above definition of irrational numbers we can conclude that the number 0.7070707070 is not an irrational number because it terminates as well as repeated.
