Which values are in the solution set of the compound inequality –8 < 3x + 7 ≤ 10? Check all that apply.
2 answers:
Answer:
Options C, D, and E
Step-by-step explanation:
To get the answer of this question we will simplify the inequality first.
-8 < 3x + 7 ≤ 10
We subtract (-7) in the given inequality
= -8 - 7 < (3x + 7) - 7 ≤ 10 - 7
= -15 < 3x ≤ 3
Now we will divide the inequality by 3
=
= -5 < x ≤ 1
Now the options which lie between (-5) to 1 and equal to 1 will be the solution set.
So the options will be (-3), 0 and 1
Options C, D, E will be the solutions.
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Answer:
3 strain would still alive after 48 hours
Step-by-step explanation:
Initial population of virus = 40000 grams
A certain virus is dying off at a rate of 18% per hour.
We are supposed to find how much of the strain would still be alive after 48 hours
Formula :
=Initial population
N(t)= Population after t hours
r = rate of decrease = 18% = 0.18
t = time = 48 hours
So,the strain would still be alive after 48 hours=
Hence 3 strain would still alive after 48 hours