The product of 5 and n is 5n. Since the expression is 6.7 more than this product, we add 6.7 to 5n. the expression becomes:
5n+6.7
Answer:

Step-by-step explanation:

Answer:
-0.24 ; 0.71
Step-by-step explanation:
Given that :
Mean number of siblings (m) = 3.76
Standard deviation (s) = 3.18
Z score associated with 3 siblings
x = 3
Using the relation :
Zscore = (x - m) / s
Zscore = (3 - 3.76) / 3.18
Zscore = - 0.76 / 3.18
Zscore = −0.238993
Zscore = - 0.24
2.) proportion of respondents with more than 2 siblings
Using the z probability calculator :
X > 2
Obtain the standardized score :
Zscore = (x - m) / s
Zscore = (2 - 3.76) / 3.18
Zscore = - 1.76 / 3.18
Zscore = −0.5534591
Zscore = - 0.55
Using the z table :
P(Z ≥ - 0.55) = 1 - p(Z ≤ - 0.55) ; p(Z ≤ - 0.55) = 0.2912
1 - p(Z ≤ - 0.55) = 1 - 0.2912 = 0.7088 = 0.71
Answer:
(I am assuming that you don't need the answer, but just an explanation of what to do.) Let's take the first problem for an example the first thing you are going to do is subtract 12 on both sides and you will get n> -1 so then you will put a open circle on -1 going to the right.
Hope this helps :)
Option A:
is the complete factorization of the polynomial 
Explanation:
The polynomial is 
Now, we shall find the complete factorization of the polynomial.
Let us group the common terms, we have,

Taking out the common terms,

Factor out
from both the terms, we have,

The term
can be factored as
and 
Thus, the roots are
and 
These roots can be written as 
Thus, the complete factorization of the polynomial is 