Answer:
c. All real numbers
Step-by-step explanation:
Step 1 :
Equation at the end of step 1 :
4 • (x + 1) - (4x + 4) = 0
Step 2 :
Equation at the end of step 2 :
0 = 0
Step 3 :
Equations which are always true :
3.1 Solve 0 = 0This equation is a tautology (Something which is always true)
Equation is alway true
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7 students......receive 0
5 students......receive 3......thats $ 15
7 students.....receive 5.......thats $ 35
3 students.....receive 6.......thats $ 18
2 students.....receive 8.......thats $ 16
the mean (or the average) can be found by adding up the total amount received and dividing by how many students there were.
so the mean is : (0 + 15 + 35 + 18 + 16) / (7 + 5 + 7 + 3 + 2) =
84 / 24 = 3.5 <==
Answer: isosceles triangle
Explanation: The lines in the middle indicate all sides are the same making it an isosceles.
Answer: 540
Step-by-step explanation:
Given : The owner of a stereo store wants to advertise that he has many different sound systems in stock.
Number of different CD players =6
Number of different receivers= 10
Number of different speakers = 9
We are assuming that a sound system consists of one of each .
Then by Fundamental principle of counting , we have
The number of different sound systems can he advertise = (Number of different CD players)x (Number of different receivers) x(Number of different speakers)
= 6 x10 x 9 =540
Hence, the number of different sound systems can he advertise =540
