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frutty [35]
3 years ago
12

I WILL GIVE THE BRAINLIEST TO WHOEVER SOLVES WRITES THIS OUT (DO NOT SOLVE)

Mathematics
1 answer:
lapo4ka [179]3 years ago
4 0

Step-by-step explanation:The quotient of a number and -7, decreased by 2, is 10. How do you find the number?

✓ $$-84$$ Explanation: Let the number be $$x$$. Then we have, $$x/-7$$ (The quotient of a number and -7) $$x/-7-2$$ (decreased by 2) $$x/-7 …

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How to calculate standard deviation given mean and sample size?
ad-work [718]
In addition to mean and sample size you will need the individual scores.

The formula for standard deviation is:

S^2 = E(X-M)^2/N-1

Here's an example: 
Data set: 4,4,3,1
Mean: 3
Sample size: 4

First, put the individual scores one after the other and subtract the mean from it.
4 - 3 = 1
4 - 3 = 1
3 - 3 = 0
1 - 3 = -2

Second, square the answers you got from step 1. 
1^2 = 1
1^2 = 1
0^2 = 0
-2^2 = 4
Third, plug the values from step 2 into the formula. 

S^2 = (1+1+0+4)/(4-1) = 6/3 = 2

Standard deviation = 2
3 0
3 years ago
PLEASE HELPPPP!!!!!!!
jek_recluse [69]

Answer:

the length between them is 4

Step-by-step explanation:

from Q - T

both are at -9 so its a straight line.

the difference between -2 and 2 is 4

-2 , -1, 0, 1, 2,

8 0
3 years ago
Read 2 more answers
Given the equation y=2x+3, write a second equation that would create an independent consistent linear system
STALIN [3.7K]

Two equations will be called independent if their graphs touch only on one point (they have one solution for the x-value and one solution for the y-value), and two equations will be dependent if they touch at every point (there is an infinite number of solutions).

This definition of independent and dependent equations is shown in the following diagram. Consider that there are two lines, one red line and one blue line:

They are independent if they touch only on one point and dependent if they touch at every point (they are the same line).

In our case, we are asked to write an equation in order to create an independent consistent linear system.

Note: Consistent means that the system has a solution.

First, we graph the given equation:

y=2x+3

There are many different equations that will form an independent consistent linear system with this equation.

We are going to choose the following line equation:

y=-x+1

Because when we graph this equation next to the previous line:

We can see that they touch at one point, thus there is a solution and the system is independent --> we have created an independent consistent linear system.

Answer:

y=-x+1

3 0
1 year ago
1/10 + 70/100 = help me pleas
Vikentia [17]
The answer is 0.8
I think that’s the answer
8 0
2 years ago
Read 2 more answers
karen ran 1/3 of the way from her home to school. she ran 1/4 mile. what is the distance in miles between her home and school?
Elena L [17]

Answer:

¾ miles

Step-by-step explanation:

⅓ : ¼ mile

1 : X

X = ¾

3 0
3 years ago
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