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Anastasy [175]
3 years ago
15

2 + (-6) HELP PLEASE !!

Mathematics
2 answers:
jeyben [28]3 years ago
7 0

Answer:

2+(-6)

2-6

-4

Your Welcome

BIFFY OUT!!!

kirill115 [55]3 years ago
4 0

Step-by-step explanation:

-4

MARK AS BRAINLIEST...........

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Describe the relationship between bias and variability through an example. Given that the proportion of all Americans that belie
mash [69]

Answer:

Answers explained below

Step-by-step explanation:

(a) If there is high bias and high variability, the numbers will not be anywhere near the 42 percent value. If I wrote down 10 numbers and they were all completely different from 42, I would know that I have high bias and high variability.

(b) If a certain number of polls have just about the same average, but are nowhere near 42 percent, they have high bias and low variability. For example, 20 percent, but its far from 42 percent.

(c) If there is low bias and high variability, if you list the polls they will have an average around 42 percent. If you average the polls, you'll get 42 percent low bias. The high variability might be 20, 72% 42% 63% 10%

(d) If there is low bias and low variability, all of the polls will be close to 42 percent.

3 0
3 years ago
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8.EE.5
olga2289 [7]

Answer:

1.) slope=2

2.) slope=-3

3.) slope=\frac{1}{4}

4.) slope=-\frac{4}{5}

Step-by-step explanation:

The unit rate is also known as slope. Slope is the change in the y values over the change in the x values:

(x_{1},y_{1})\\\\(x_{2},y_{2})\\\\\frac{y_{2}-y_{1}}{x_{2}-x_{1}}=slope

However, with certain graphs, the slope can be found in a simpler manner.

  • You start at one point and move across the y-axis, then move along the x-axis until you reach another point on the same line.
  • Make sure you move on the y-axis first, then the x-axis. Record the slope as spaces moved in each \frac{y}{x}
  • When you move up, the number will be positive (\frac{+y}{x}). If you move down, the number will be negative (\frac{-y}{x}).
  • If you move to the right, the number will be positive (\frac{y}{+x}). If you move to the left, the number will be negative (\frac{y}{-x}).
8 0
3 years ago
The sum of 18 and twice a number use n to rep<br> Repesent unknown number
Romashka-Z-Leto [24]

18+2n. For sure hope it helps

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4 years ago
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The sum of two number is 63the smaller number is 17 less than the larger number.what are the number
pochemuha

Answer:

The larger number is 40, and the smaller one is 23.

Step-by-step explanation:

Let x be the larger number.

Let x - 17 be the smaller number.

x + (x - 17) = 63

2x - 17 = 63

2x = 80

x = 40

Hence, the smaller number is 40 - 17 = 23.

Hope this helped!

6 0
3 years ago
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What is the solution to the system of equations y=x+3, y=3x+1
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Substitution method

y = x + 3   (*)

y = 3x + 1  (**)

Substitute (*) to (**):

3x + 1 = x + 3      <em>subtract 1 from both sides</em>

3x = x + 2       <em>subtract x from both sides</em>

2x = 2        <em>divide both sides by 2</em>

<h3>x = 1</h3>

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y = 1 + 3

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4 years ago
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