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ycow [4]
3 years ago
6

What is the answer and how do you solve this??

Mathematics
2 answers:
OLga [1]3 years ago
5 0
Since they are both equal to y, you can set -7x and x+8 equal to each other.
- 7x = x + 8 and solve for x then use what you got for x to solve for y
ipn [44]3 years ago
3 0
Since x= -7

x+8 = -7+8=1

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Six distinct integers are picked from the set {1, 2, 3,…, 10}. How many selections are there, in which the second smallest integ
Ksivusya [100]

Answer:

1680 ways

Step-by-step explanation:

Total number of integers = 10

Number of integers to be selected = 6

Second smallest integer must be 3. This means the smallest integer can be either 1 or 2. So, there are 2 ways to select the smallest integer and only 1 way to select the second smallest integer.

<u>2 ways</u>   <u>1 way</u>  <u>       </u>  <u>        </u>  <u>        </u>  <u>        </u>

Each of the line represent the digit in the integer.

After selecting the two digits, we have 4 places which can be filled by 7 integers. Number of ways to select 4 digits from 7 will be 7P4 = 840

Therefore, the total number of ways to form 6 distinct integers according to the given criteria will be = 1 x 2 x 840 = 1680 ways

Therefore, there are 1680 ways to pick six distinct integers.

6 0
4 years ago
What does a z-score of -2 represent
iren [92.7K]
That it is that many deviations away from the mean.
3 0
3 years ago
Find the mean,median and range of the following list of values and choose the correct result.
Aloiza [94]

Mean: 10.5

Median: 10.5

Range: 5

--------------------------------------------

<u></u>

To find the mean you order the numbers then add then divide.

<u>Add</u>

8+9+10+10+10+11+11+11+12+13=105

<u>Divide</u>

105÷10=10.5

Mean = 10.5

--------------------------------------------

<u></u>

Finding the median essentially involves finding the value in a data sample that has a physical location between the rest of the numbers.

Find the middle number. Put your left finger on 8 and your right finger on 13. Move your left finger to the right to 10 and move your right finger to 11.

the middle number is 10.5 so therefore it is the median.

--------------------------------------------

<u></u>

To find the range you subtract the biggest number to the smallest number.

<u>Subtract</u>

13-8=5

Therefore 5 is the range

5 0
4 years ago
Read 2 more answers
Please help... 12! - 9^3
Naily [24]

Answer:

-729

Step-by-step explanation:

-9^3 = -9 x (-9) x (-9) =

          -9x(-9) = 81

                   81x(-9)=-729

4 0
4 years ago
Read 2 more answers
your bedroom is in the shape of a square that is 12 feet long on each side. Will a circular rug with a circumference of 40.82 fe
kotegsom [21]
Circumference = PI * diameter
diameter = Circumference / PI
diameter = 40.82 / 3.14159265
diameter = <span> <span> <span> 12.9934095689 </span> </span> </span>
Basically, the rug is roughly 1 foot wider than the room.


7 0
3 years ago
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