Answer: 42.5
Step-by-step explanation:
The axis of symetry, or A.o.S, intersects a parabola at its vertex. The answer is x=1
Answer:
.095 laps per minute (if you need this answer as well 10.5 minutes per lap)
Step-by-step explanation:
(2/3)/7 =.095238 this is laps per min
7/(2/3)= 10.5 this is minutes per lap
I hope this is what you were looking for.
$20×.25=$5
$20-$5=$15
$15×.15=$2.25
$15+$2.25=$17.25
$17.25 is your answer
The percentage of the radioactive isotope left is 25.0000%.
<h3>What is the half life?</h3>
The half life of a radioactive isotope is the time that will elapse before only half of the number of original isotopes will remain.
Now;
We are told that;
Half life (t1/2) = 55 days
Time taken (t) = 115 days
Ratio of isotope remaining = N/No
Thus;
N/No = (1/2)^t/t1/2
N/No = (1/2)^115/55
N/No = (1/2)^2
N/No =1/4
Hence, the percentage = 1/4 * 100/1 = 25.0000%
Learn more about half life of an isotope:brainly.com/question/16387602
#SPJ1
