Answer:
The first number is -2 and the second number is 1
see the procedure
Step-by-step explanation:
<u><em>The complete question is</em></u>
Translate to a system equation
Twice a number plus three times a second number is negative one. The first number plus four times the second number is two.
Call the first number m and the second number n
Let
m ----> the first number
n ----> the second number
we know that
----> equation A
---->
----> equation B
Solve the system by substitution
Substitute equation B in equation A

solve for n



<em>Find the value of m</em>
----> 
therefore
The first number is -2 and the second number is 1
2x-13+3x-8+2x-3+2x-7+3x-1+2x+11+2x+9= (7-2)×180
16x-12=(7-2)×180
(7-2)×180 Work this out on a calculator
And then that answer=16x-12
Then you solve by adding 12 both sides and dividing by 16 both sides to get what x is.
Answer:
(15.23,41.016)
Step-by-step explanation:
WE must determine the mean of the data set: Which is the sum of the set divided by the number in the set.

We must also determine the standard deviation: Which is the square root of the variance and the variance is the sum of squares of the sample number minus the mean divided by the number if the set data:


The 95% confidence interval is defined as: The mean ± 1.96*standard deviation divided by the sqaure root of the number of data in the set:



The confidence interval for this data set is (15.23,41.016)
Answer:
The function is not defined for x=2
Step-by-step explanation:
we have

we know that
In a quotient the denominator cannot be equal to zero
so
equate the denominator to zero to find the value of x

solve for x

therefore
The function is not defined for x=2