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saul85 [17]
3 years ago
7

The directed line segment, AB¯, contains the points A(−2,6)

Mathematics
1 answer:
CaHeK987 [17]3 years ago
8 0

Answer:

The coordinate of the point is; (0,2)

Step-by-step explanation:

The given line segment has points with coordinates  A(−2,6)

and B(4,−6).

We want to find a point (x,y) that divides this line segment in the ratio:

m:n=2:4

The x-coordinate of this point is given by;

x=\frac{mx_2+nx_1}{m+n}

We substitute x_1=-2,x_2=4,m=2,n=4

\implies x=\frac{2*4+4*-2}{2+4}

\implies x=\frac{8-8}{6}=0

The y-coordinate of this point is given by;

y=\frac{my_2+ny_1}{m+n}

We substitute y_1=6,y_2=-6,m=2,n=4

\implies y=\frac{2*-6+4*6}{2+4}

\implies y=\frac{-12+24}{6}=2

The coordinate of the point is; (0,2)

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Discussion:

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3 0
3 years ago
Which property is used in the statement? <br> If z=3+1, then 3+1=z
inessss [21]
This is the symmetric property of equality, and in a more general form it can be written  as: if a=b then b=a.

<span>This  is not to be confused with communicative property,  which says that the order doesn't  matter in some operations, such as addition, and can be written as a+b=b+a</span>
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4 years ago
A contractor has submitted bids on three state jobs: an office building, a theater, and a parking garage. State rules do not all
german

Answer:

The following are the answer to this question:

Step-by-step explanation:

In the given question the numeric value is missing which is defined in the attached file please fine it.  

Calculating the probability of the distribution for x:

\to f(x) = 0.19\  for \ x=14\\\\\to  f(x) = 0.29 \ for\ x=7\\\\\to f(x) = 0.38\  for \ x=1\\\\\to f(x)=0.14 \ for \ x=0\\

The formula for calculating the mean value:

\bold{ E(X)= x \times f(x)}

          =14 \times 0.19+7 \times 0.29+1 \times 0.38+0\times 0.14\\\\=2.66 + 2.03+0.38+ 0\\\\=5.07

\bold{E(X^2) = x^2 \times f(x)}

           =14^2 \times 0.19+7^2 \times 0.29+1^2 \times 0.38+0^2 \times 0.14 \\\\=196 \times 0.19+ 49 \times 0.29+1 \times 0.38+0 \times 0.14\\\\= 37.24+ 14.21+ 0.38+0 \\\\=51.83

use formula for calculating the Variance:

\to \bold{\text{Variance}= E(X^2) -[E(X)]^2}

                  = 51.83 - (5.07)^2\\\\= 51.83 -  25.70\\\\=26.13

calculating the value of standard deivation:

Standard Deivation (SD) = \sqrt{Variance}

                                          = \sqrt{26.13} \\\\=5.111

6 0
3 years ago
HELP PLEASEEEE I WILL AWARD 100 POINTS ITS DUE ASAPPP<br> What is the equation for A(w)=?
skad [1K]

Answer:

390=W 195=L Area=76050

Step-by-step explanation:

You have two lengths and one width for your perimeter

P= 2L + W

you are given your perimiter 780

780= 2L + W

To solve for your maximum Width

780-2L=w

Area is L * W

A= (780-2L)*L

A= 780L - 2L^2

the derivitive of the Area

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add 4L to both sides

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divide by 4 on both sides

195=L

Bring back 780-2L=W and plug in what you now know is L

780-2(195)=W

780-390=W

390=W

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3 years ago
Which relationship is always true for the angles r, x, y, and z of triangle ABC?
Leya [2.2K]
The correct answer is b !! Hope this helps
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