Answer:
The sample proportion of printers used in small business is:

The 95% confidence interval for the population proportion of printers that are used in small businesses is:

Where:
is the critical value at 0.05 significance level




Therefore, the 95% confidence interval for the population proportion of printers that are used in small businesses is (0.245 , 0.469)
0.4
4×1/10=0.4
multiply 4 by one-tenth
Answer:

Step-by-step explanation:
Reduce the expression, if possible, by canceling the common factors.
Answer:
x=0
This can be solved by reasoning.
And confirmed by substituting 0 into the expression.
Answer:
-15
Step-by-step explanation: