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3 years ago

If a line passes through points(-2,-4) and (3,-2), the equation of the line is y +2 = 2/5(x-_____)

1 answer:

7 0

We have the formula: (y+4)/(-2+4) = (x+2)/(3+2);
Then, (y+4)/2 = (x+2)/5;
y+4 = (2/5)(x+2); / - 2
y+2 =(2x)/5 + 4/5 - 2;
y + 2 = (2x)/5 - 6/5;
y + 2 = (2/5)(x - 3) is the equation of the line;

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PLEASE HELP I WILL MARK YOU AS BRAINLEST

denpristay [2]

Answer:

(i) Five number summary: Minimum value = 1, $Q_1=18$ , $Median=18.5$ , $Q_3=20.5$ , Maximum value = 26.

(ii) IQR = 2.5, upper fence = 24.25 and lower fence = 14.25.

(iii) 26 is an outlier of the data.

Step-by-step explanation:

The given data set is

19, 18, 23, 18, 18, 26, 19, 16, 20, 18, 17, 21

Arrange the data set in ascending order.

16, 17, 18, 18, 18, 18, 19, 19, 20, 21, 23, 26

Divide the data set in 4 equal parts.

(16, 17, 18), (18, 18, 18), (19, 19, 20), (21, 23, 26)

Minimum value = 16

$Q_1=\frac{18+18}{2}=18$

$Median=Q_2=\frac{18+19}{2}=18.5$

$Q_3=\frac{20+21}{2}=20.5$

Maximum value = 26

The inter quartile range (IQR) of the data is

$IQR=Q_3-Q_1=20.5-18=2.5$

Upper fence :

$Q_3+1.5(IQR)=20.5+1.5(2.5)=24.25$

Lower fence :

$Q_1-1.5(IQR)=18-1.5(2.5)=14.25$

If the any element of the data set lies out side the upper fence and lower fence, then it is called an outlier.

26 ∉ [14.25, 24.25]

Therefore, 26 is an outlier of the data.

4 0

3 years ago

Read 2 more answers

Good morning yall <3 say it back free points !!

NeTakaya

Answer:

okay thanks didn't expect this lol

6 0

3 years ago

Read 2 more answers

(x-1)(x+2)=5(x-1) divided by x-1

anyanavicka [17]

Assuming that your question is (x-1)(x+2) = [5(x-1)]/x-1

On the right side, the x-1's will cancel out, leaving you with (x-1)(x+2) = 5

expand the left side, giving you x^2 + x -2 = 5
which goes to x^2 +x -7 = 0
the possible values for x are 2.93 and -3.93. I don't think this was your question, so I'll do the other possible question that you might have been asking.

(x-1)(x+2) = 5(x-1)

divide by x-1 on both sides, leaving you with x+2=5
x+2=5
x=5-3
x=3

5 0

3 years ago

Factor the equation.

Kryger [21]

Hi!

The fully factored form of this equation is (3x+2)²

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PLEASE HURRY WILL GIVE YOU MY ACCOUNT AND BRAINLIEST IF YOU ANSWER CORRECTLY

marishachu [46]

Answer:

A, D, E

Step-by-step explanation:

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3 years ago