She added the polynomials instead of subtracting.
Answer:
D. |-10| < |12| < |-15| < |17|
10 is less than 12, which is less than 15, which is less than 17.
Step-by-step explanation:
A. |-10| |-10| > |-12| > |17|
12 is not greater than 17.
C. |10| > |-15| > |-5| > |2|
5 is not greater than 2.
We can calculate the age by using the formula: final amount=initial amount*(1/2)^(time/half-life), or t=ln(final amount/initial amount)/(-0.693)*half-life. The half life of C-14 is 5730 years, and final amount=initial amount is 51% or 0.51, so t=ln(0.51)/(-0.693)*5730=5567 years approximately.
Answer:
Step-by-step explanation:
30.3 dqibeided by sibdka equal 30.234
Answer:

Step-by-step explanation:
So, as balloon reaches its maximum height i.e. 11 m , its velocity become 0.
Therefore,
.
It is given that acceleration due to gravity should be taken as ,
.(because it direction is down)
Now it is also given that upward direction is positive and downward direction is negative. So velocity should be negative.
Using equation of motion,
.....eqn 1.
where , displacement = -11 m(because it displace towards down) and 
Putting these values in eqn 1 .


But as we know direction of velocity is downward.
Therefore, 
where negative sign indicates its direction is downward.