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Sliva [168]
2 years ago
5

HELP PLEASE!! Type the correct answer in each box. The graph shown is not a function because points (-1, 2)

Mathematics
2 answers:
ycow [4]2 years ago
6 0

Answer:

(-1,0)

Step-by-step explanation:

Look to see which points have the same x value (in this case -1)

Natasha2012 [34]2 years ago
6 0
(-1,0) is the answer. Good luck! Have a good day/ night
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Can someone please help?
kifflom [539]
Standard form means, move the variables to the left-hand-side and leave the constant all by herself on the right-hand-side, usually sorting the variables, so"x" goes first.

now, there's a denominator, we can do away with it, by simply multiplying both sides by the denominator, so let's do so,

\bf y=-\cfrac{2}{3}x+7\implies \boxed{3}\cdot y=\boxed{3}\cdot \left( -\cfrac{2}{3}x+7 \right)\implies 3y=-2x+21
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\stackrel{standard~form}{2x+3y=21}
5 0
3 years ago
Line A has a slope of -4/3. Line B is perpendicular to Line A. What is the slope of Line B?
blsea [12.9K]

Answer:

The answer is 3/4

Step-by-step explanation:

If two lines in perpendicular, then the slope has a relation as slope1 * slope2 = -1. Then if line 1 has slope -4/3 then -4/3 * x = -1, then x = 3/4 which is the slope for the second line.

3 0
2 years ago
A sample of 5 buttons is randomly selected and the following diameters are measured in inches. Give a point estimate for the pop
Helen [10]

Answer:

s^2 = \frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}

But we need to calculate the mean with the following formula:

\bar X = \frac{\sum_{i=1}^n X_I}{n}

And replacing we got:

\bar X = \frac{ 1.04+1.00+1.13+1.08+1.11}{5}= 1.072

And for the sample variance we have:

s^2 = \frac{(1.04-1.072)^2 +(1.00-1.072)^2 +(1.13-1.072)^2 +(1.08-1.072)^2 +(1.11-1.072)^2}{5-1}= 0.00277\ approx 0.003

And thi is the best estimator for the population variance since is an unbiased estimator od the population variance \sigma^2

E(s^2) = \sigma^2

Step-by-step explanation:

For this case we have the following data:

1.04,1.00,1.13,1.08,1.11

And in order to estimate the population variance we can use the sample variance formula:

s^2 = \frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}

But we need to calculate the mean with the following formula:

\bar X = \frac{\sum_{i=1}^n X_I}{n}

And replacing we got:

\bar X = \frac{ 1.04+1.00+1.13+1.08+1.11}{5}= 1.072

And for the sample variance we have:

s^2 = \frac{(1.04-1.072)^2 +(1.00-1.072)^2 +(1.13-1.072)^2 +(1.08-1.072)^2 +(1.11-1.072)^2}{5-1}= 0.00277\ approx 0.003

And thi is the best estimator for the population variance since is an unbiased estimator od the population variance \sigma^2

E(s^2) = \sigma^2

3 0
3 years ago
Please help me and ill mark you brainlest
dedylja [7]

Answer:

D

Step-by-step explanation:

Multiply by 3

4 x 3 = 12

9 x 3 = 27

8 0
2 years ago
Read 2 more answers
Let the x and y represent the tens digit and ones digit of a two digit number respectively. The sum of the digits of a two-digit
olga2289 [7]

Answer:  

The Original Number is 36 :)

explanation:

4 0
3 years ago
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