The manager at Jessica's Furniture Store is trying to figure out how much to charge for a couch that just arrived. The couch was
2 answers:
You might be interested in
Answer:
Third option:
Step-by-step explanation:
<h3> The correct exercise is attached.</h3>
The equation given is:
The steps to find the value of "x" are shown below:
1. Add 2 to both sides of the equation:
2. Descompose 9 and 27 into their prime factors:
3. Substitute them into the equation:
4. Knowing that If , then
, we get:
5. Apply Distributive property:
6. Add 2 to both sides:
7. Divide both sides of the equation by 2:
I hope this helps you
Answer:
C. Those who have a car tend to have a cell phone.
Step-by-step explanation:
The relative frequency for a data set n is calculated by dividing each frequency by n.
We have a table that relates the use of cars and cell phones.
First, we take from the table the population that has a car.
Then, of the students who have a car, 12 have a cell phone and 6 do not have a cell phone.
Then we calculate the relative frequencies for those who have a cell phone and those who do not.
______________________________________________
Relative frequency Students with car n = 18.
-------------------------------------------------- --------------------------------------
C<em>ell phone No cell phone Total n</em>
12/18 6/18 18
_______________________________________________
_______________________________________________
Relative frequency Students with car n = 18.
-------------------------------------------------- --------------------------------------
C<em>ell phone No cell phone Total n</em>
0.666 0.333 18
________________________________________________
Most students who have a car also have a cell phone.
Now we calculate the relative frequency for students who do not have a car.
_______________________________________________
Relative frequency Students without a car n = 7
-------------------------------------------------- --------------------------------------
<em>Cell phone No cell phone Total n</em>
2/7 5/7 7
_______________________________________________
_______________________________________________
Relative frequency Students without a car n = 7
-------------------------------------------------- --------------------------------------
<em>Cell phone</em> <em> No</em> <em>cell phone Total n</em>
0.286 0.714 7
_______________________________________________
Most students who do not have a car do not have a cell phone either.
<em>Then these data suggest that. Those who have a car tend to have a cell phone.</em>
Option C