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romanna [79]
3 years ago
9

What is the slope of the line that contains the points (2, -6) and (-3, 1)?

Mathematics
2 answers:
Dmitriy789 [7]3 years ago
7 0

For this case we have that by definition, the slope of a line is given by:

m = \frac {y2-y1} {x2-x1}

We have to:

(x1, y1) = (2, -6)\\(x2, y2) = (- 3,1)

Substituting in the given expression we have:

m = \frac {1 - (- 6)} {- 3-2}\\m = \frac {1 + 6} {- 3-2}\\m = \frac {7} {- 5}\\m = - \frac {7} {5}

Answer:

m = - \frac {7} {5}

Radda [10]3 years ago
5 0

Answer:

The slope is m=-\frac{7}{5}

Step-by-step explanation:

The slope of the line passing through (x_1,y_1) and (x_2,y_2) is given by the formula;

m=\frac{y_2-y_1}{x_2-x_1}

The given line contains;the points (2, -6) and (-3, 1).

m=\frac{1--6}{-3-2}

m=\frac{1+6}{-3-2}

m=\frac{7}{-5}

The slope is m=-\frac{7}{5}

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geniusboy [140]

The statement above is false.


If the diagonals of a parallelogram form right angles, then the parallelogram is a rhombus (a rhombus is a quadrilateral with four equal side lengths).


Note* = by saying the statement is false is not saying that the scenario presented in the statement cannot occur. If the rectangle was a square, then its diagonals can form right angles since a square is also a rhombus. However, if a rectangle was NOT a square, its diagonals would not form right angles. A true statement is a statement where ALL cases fit the said requirement(s).


The statement can also be corrected by saying:

If the diagonals of a parallelogram are congruent, then the parallelogram is a rectangle.


All rectangles (even a square) have congruent diagonals, so this statement would be true.


Hope this helps!

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3 years ago
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2 years ago
A random sample of 77 fields of corn has a mean yield of 26.226.2 bushels per acre and standard deviation of 2.322.32 bushels pe
PSYCHO15rus [73]

Answer:

Therefore the  95% confidence interval is (25,707.480 < E < 26,744.920)

Step-by-step explanation:

n = 77

mean u = 26,226.2  bushels per acre

standard deviation s = 2,322.32

let E = true mean

let A = test statistic

Find 95% Confidence Interval

so

let  A =  (u - E) *  (\sqrt{n}  / s)   be the test statistic

we want      P( average_l <  A  < average_u )  = 95%

look for  lower 2.5%  and the upper 97.5%  Because I think this is a 2-tail test

average_l =  -1.96  which corresponds to the 2.5%

average_u = 1.96

P(  -1.96  <  A  <  1.96)  =  95%

P(  -1.96  <  (u - E) *  (\sqrt{n}  / s)  <  1.96)  =  95%

Solve for the true mean E ok

E   <   u + 1.96* (s  / \sqrt{n})

from  -1.96  <  (u - E) *  (\sqrt{n}  / s)

E < 26,226.2 +  1.96*( 2,322.32 / \sqrt{77} )

E < 26,226.2 +  1.96*( 2,322.32 / \sqrt{77} )

E < 26,226.2 +  518.7197348105429466

upper bound is 26,744.9197

or

u - 1.96* (s  / \sqrt{n})  < E

26,226.2 -  518.7197348105429466  < E

25,707.48026519  < E

lower bound is 25,707.48026519

Therefore the  95% confidence interval is (25,707.480 < E < 26,744.920)

7 0
3 years ago
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Where are the graphs?

the graph that will represent the points, is the one with the points on it 8 for x value and 6 for y value

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