Answer:
Step-by-step explanation:
The mean for brand A is higher than the mean for brand B
X=4 & y=3
Explanation:
Picture
Hello!
The rule regarding the division of exponents states the following:

=

Insert any known values into the formula above:

=

Simplify the expression:

=
We have now proven that
is equal to
.I hope this helps!
Answer:
35
Step-by-step explanation:
We are adding 8 and then subtracting 2
3, 11, 9, 17, 15, 23, 21
The 8th number is 21+8 = 29
The 9th number
Subtract 2
29-2 = 27
10th number
Add 8
27+8 = 35