What is the mean of the following data set?<br>
{4, 5, 2, 4, 9, 7, 5, 5, 2, 8, }
sergij07 [2.7K]
If I'm not mistaken you add the numbers up, then you divide it by the amount of numbers there. 4 + 5 + 2 + 4 + 9 + 7 + 5 + 5 + 2 + 8 = 51
51 / the amount of numbers there (10) = 5.1
Hope this helps :)
Subtract 6 from both sides (8n=40) then divide 40 by 8 (5) so n=5
5x + 60 > 112 because he earned 5 dollars per hour (x) plus the tips (60) and it was more than (>) 112 dollars.
Answer:
0.58
Step-by-step explanation:
because they are the Decimals
Answer:
Choice c.
Step-by-step explanation:
The domain of a rational function is found where the denominator of the fraction is equal to 0. These are the values that are NOT allowed. We have to factor the denominator completely to find these values that make the denominator equal 0. In other words, our denominator right now is:
![x(x^2-16)](https://tex.z-dn.net/?f=x%28x%5E2-16%29)
we set each factor equal to 0:
x = 0 or
![x^2-16=0](https://tex.z-dn.net/?f=x%5E2-16%3D0)
The left side of that quadratic is the difference of perfect squares, so it factors into the 2 binomials:
(x + 4)(x - 4)
Setting each of those equal to 0 we can solve for the values of x that are not allowed:
If x + 4 = 0, then
x ≠ 4.
If x - 4 = 0, then
x ≠ -4
So the domain for this rational function is:
{x I x ≠ ±4, x ≠ 0},
which is c.