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Svetradugi [14.3K]

2 years ago

10

Evaluate the expression for the given value of the variable 39 +1/8n=? n= - 1/2

2 answers:

kati45 [8]2 years ago

8 0

Exact form = 623/16
Decimal form = 38.9
Mixed number form= 38 15/16

I am Lyosha [343]2 years ago

5 0

The answer is I’m just doing this for points

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3 years ago

System with 3 variable. solve pleaseeee<br><br> x+4y-5z=-7<br> 3x+2y+3z=7<br> 2x+y+5z=8

7nadin3 [17]

To solve this we need to form 2 equations with only 2 variables.
x+4y-5z=-7
2x+y+5z=8
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15x+10y+15z=35
6x+3y+15z=24
9x+7y=11

Now we need to use these to find x and y
9x+15y=3
9x+7y=11
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Therefore:
x=2
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3 years ago

A graph contains the points (-1,-1), (0,1) and (1,3). Are these points considered a linear

alukav5142 [94]

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3 0

3 years ago

What’s the answer to xy-5 at. X=5,y=2

Nataly_w [17]

Answer:

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6 0

3 years ago

Read 2 more answers

The midpoint of RS has cordon ages (6,8). Points S has coordinates (6,7)...

postnew [5]

The coordinates of R are (6,9)

Step-by-step explanation:

Given

S(6,7) = (x2,y2)

R = (x1,y1)

M = (6,8)

The formula for mid-point is:

$M = (\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2})$

Putting values

$(6,8) = (\frac{x_1+6}{2} , \frac{x_2+7}{2})$

Putting respective coordinates equal

$6 = \frac{x_1+6}{2}\\6*2 = x_1+6\\12 = x_1+6\\x_1 = 12-6\\x_1 =6\\AND\\8 = \frac{y_1+7}{2}\\8*2 = y_1+7\\16 = y_1+7\\16-7 = y_1\\y_1 = 9$

Hence,

The coordinates of R are (6,9)

Keywords: Coordinate geometry

Learn more about coordinate geometry at:

#LearnwithBrainly

3 0

3 years ago