Answer:
c. P=R-10; 35 million
Step-by-step explanation:
P=R-10, just read what the text says, namely profit = revenue - expenses
P=25, 25=R-10 <=> R=35
First join the log4 on the left:
log4( x*(x-3) = log4(-7x+21)
Then x = -7, works: -7*(-10)=70 = -7*(-7)+21
x=-3, 18 = 42, does not work
x=3 0=0 works,
However, when one puts x = -7 in the *original* exression, log4(-7) or log4(-10) do not exist (you know why?). So x= -7 is extraneous.
Now x=3 gives log4(0) on the left and right, which does not exist.
So, C is the answer, both are extraneous. Seem to work but indeed don't work in the *original* equation
It’s 20
i’m not sure if you meant to put 20 or 21 but the answer is 20
Answer:
21.
Step-by-step explanation:
An outlier is basically a data point that is just significantly different from other data values (way higher or way lower.)
However, you can see that most of the data points range in the 50-70 points, except the 21. Therefore, it is an outlier.
