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wolverine [178]
3 years ago
10

12−7=13(−12) what is this i need help

Mathematics
2 answers:
kicyunya [14]3 years ago
8 0
That’s false it not true
mrs_skeptik [129]3 years ago
7 0

Answer:

5 no = 1 .................m

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Janelys needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer fo
Sav [38]

Answer: x = 45

Step-by-step explanation:

6 0
2 years ago
A set of a thousand numbers has a mean of zero.
Alona [7]

We want to find the mean of two elements in a set, given that we know the other elements of the set and the mean of the whole set.

The answer is: -490

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

For a set with N elements {x₁, x₂, ..., xₙ} the mean is given by:

M = \frac{x_1 + x_2 + ... + x_n}{N}

Here we know that:

  • The mean of the set is 0.
  • The set has 1000 elements.
  • 998 of these elements are ones, the other two are A and B.

We want to find the mean of the values of A and B.

First, we can start by writing the equation for the mean:

\frac{1 + 1 + 1 + ... A + B}{1000}  = 0

We can rewrite this as:

1 + 1 + 1 +... + A + B = 0

And we have 998 ones, then:

1 + 1 + 1 +... + A + B = 998 + A + B = 0\\\\B = - 998 - A

Now we have B isolated.

With this, the mean of A and B can be written as:

\frac{A + B}{2}  = \frac{A - 980 - A}{2} = -490

So we can conclude that the mean of the other two numbers is -490.

If you want to learn more, you can read:

brainly.com/question/22871228

5 0
2 years ago
If b=6, find the value of 7b
Serggg [28]
7b is just 7 x b and if b is 6 its just 7 x 6
which the answer is 42
5 0
3 years ago
Read 2 more answers
Luke is swimming in still water at a constant speed of 3 meters/second.
STALIN [3.7K]

Answer:

1. velocity

Step-by-step explanation:

that is the answer above

4 0
2 years ago
Please help ASAP! I will mark Brainliest! Please answer CORRECTLY! No guessing! CHECK ALL THAT APPLY
Taya2010 [7]

Answer:

A) 26

E) 12

Step-by-step explanation:

11x ≥ 132

x ≥ 12

The solution set would include numbers greater than or equal to 12

3 0
3 years ago
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