Answer:
2.5 Hours
Step-by-step explanation:
150 is the largest number up there. So if you divide 150 by the number of minutes in a hour (which is 60), you would get 2.5 hours.
Hope this helps!
Answer:
lol number 8 is x= i, -i , 
, -4 so u are correct.
and number 7 is x=
or ![\sqrt[5-i]\sqr\frac{23}{8}](https://tex.z-dn.net/?f=%5Csqrt%5B5-i%5D%5Csqr%5Cfrac%7B23%7D%7B8%7D)
Step-by-step explanation:
Let's say that ground level is 0. When she goes down to the basement, she is going -12 feet since each flight of stairs is12 feet. Then she goes up 12 more feet= -12+12=0. She is back at ground level. Then she goes up another 12 feet= 0+12= 12. So I believe the answer is 12 feet.
Her dad = 36
Sarah = 5
After 31 years sarah = 36
And her dad = 67
Answered by Gauthmath must click thanks and mark brainliest
Answer:
Step-by-step explanation:
The different isotopes have different "half-lives" – the time it takes to lose half of its radioactivity. Pu-239 has a half-life of 24,100 years and Pu-241's half-life is 14.4 years. Substances with shorter half-lives decay more quickly than those with longer half-lives, so they emit more energetic radioactivity.
