Answer:
The decibel range is 
Step-by-step explanation:
Let
d -----> the decibel level of the music
we know that
The absolute value of the difference of the decibel level of the music and its average, must be less than or equal to 28 decibels
so
The absolute value that represent this problem is
Solve the absolute value
<em>First solution (positive)</em>
Adds 110 both sides
<em>Second solution (negative)</em>
Multiply by -1 both sides
Adds 110 both sides
therefore
The decibel range is
Answer:
The simplified expression would be: -6.3n + 8.6
Step-by-step explanation:
First is to write out the expression:
3.6 - 4.3n - 2n + 5
Then re-sort the expression:
-4.3n - 2n + 5 + 3.6
-4.3n - 2n = -6.3n
5 + 3.6 = 8.6
Your final expression would be:
- 6.3n + 8.6
The answer is A.
Hope this helps :)
So hmmm 7, 0, -7.... what the dickens is going on? hmmm is really dropping each time by 7, so, 7-7, 0, and 0-7, -7 and so on.
so, the "common difference" is then -7, and our first term is 7, now, who's -175? let's check.
Answer:
15/50
Step-by-step explanation:
1'st step : Multiply the numerator and the denominator by 5 so that the denominator could get the number 50
3x5/10x5= 15/50
therefore, Brock could score 15/50 penalty kicks because 15/50 is equivalent to 3/10
