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Harrizon [31]
3 years ago
6

What is the domain and range of f(x)=-2[x+1]?

Mathematics
1 answer:
Natali [406]3 years ago
4 0

Answer:

Alternate form:

f(x) + 2 x + 2 = 0

Expanded form:

f(x) = -2 x - 2

Root:

X = -1

Step-by-step explanation:

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3. Stu had $50 to buy 5 pair of socks. Please help me. ​
RSB [31]

Answer:

B. p=(50-25)÷5

Step-by-step explanation:

5 0
3 years ago
Solve for b. (g+l)b=n
denis23 [38]

Answer:

         n

b = ---------

      (g+l)

Step-by-step explanation:

We need to isolate b.  Starting from (g+l)b=n, we divide both sides by (g+l), obtaining

         n

b = ---------

      (g+l)

7 0
4 years ago
Select the correct answer. Which pair of statements correctly compares the two data sets? A. The difference of the means is 1. T
Readme [11.4K]

Answer:

For this case since the p value is higher than the significance level we can FAIL to reject the null hypothesis and we can conclude that the true means are NOT significantly different at 10% of significance.

Step-by-step explanation:

Information provided

represent the mean for sample 1  

represent the mean for sample 2  

represent the sample standard deviation for 1  

represent the sample standard deviation for 2  

sample size for the group 2  

sample size for the group 2  

Significance level provided

t would represent the statistic

Hypothesis to test

We want to verify if the true means for this case are significantly different, the system of hypothesis would be:  

Null hypothesis:  

Alternative hypothesis:  

The statistic is given by:

(1)  

And the degrees of freedom are given by    

Replacing the info given we got:

 

The degreess of freedom are given by:

Now we can calculate the p value with the following probability:

 

For this case since the p value is higher than the significance level we can FAIL to reject the null hypothesis and we can conclude that the true means are NOT significantly different at 10% of significance.

Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
During one day in a hardware store, 37 people came in and made a purchase, and 13 people looked around but didn’t purchase anyth
MA_775_DIABLO [31]
A= 37:13
B= 13:37
C=37:50
D=13:50
8 0
3 years ago
The following two functions have a common input, year t: R gives the average price, in dollars, of a gallon of regular unleaded
stiks02 [169]

Answer:

a) F(t) = R[P(t)]

b) the output units of the new function = F(t) in dollars per gallon

Step-by-step explanation:

a) There are two function R(t) which shows the average price in dollars of a gallon of regular unleaded gasoline and P(t) which shows the purchasing power of the dollar as measured by consumer prices based on 2010 dollars.

To write the function which gives the rice of gasoline in constant 2010 dollars ;

From the analysis , this is an example of a composition of function as such the relationship =

F(t) = R[P(t)]

b) the output units of the new function = F(t) in dollars per gallon

This shows that the value of F(t) is the dependent variable

5 0
3 years ago
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