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katen-ka-za [31]
3 years ago
7

What is the sum of the linear expressions?

Mathematics
1 answer:
madam [21]3 years ago
3 0
8n+4 because you have to add it all up
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Write an equation in point-slope form, y – y1 = m(x – x1), of the line through points (9, –2) and (10, 2). Use (9, –2) as the po
True [87]
\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
%  (a,b)
&&(~ 9 &,& -2~) 
%  (c,d)
&&(~ 10 &,& 2~)
\end{array}
\\\\\\
% slope  = m
slope =  m\implies 
\cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{2-(-2)}{10-9}\implies \cfrac{2+2}{10-9}\implies \cfrac{4}{1}\implies 4
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}\implies y-(-2)=4(x-9)\implies y+2=4(x-9)
4 0
3 years ago
The polygons are similar. The area of one polygon is given. Find the area of the other polygon.
kap26 [50]

Answer:

90 cm²

Step-by-step explanation:

Given that both triangles are similar, it follows that the ratio of their area equals the square of their corresponding sides.

Let the area of the other triangle be x. Therefore:

\frac{10}{x} = \frac{4^2}{12^2}

\frac{10}{x} = \frac{16}{144}

Cross multiply

10*144 = 16*x

1440 = 16x

Divide both sides by 16

90 = x

Area of the other polygon = 90 cm²

4 0
3 years ago
Can anyone please help me with 1-18
ruslelena [56]

Answer:

a. 15 on top 8 on bottom

b. 2 on top -3 on bottom

c. 4 and 2

d. 4 on top 8.5 on bottom

e. -3 and -4

Step-by-step explanation:

multiply the two numbers on the sides to get the top answer and add them together to get the bottom answer.

6 0
3 years ago
What is 500 times H88
sattari [20]
The answer would be A. 344000 and H=6 :)
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14. Subtract: 5 - 3 1/3.<br><br> A. 313<br> B.223<br> C. 12/3<br> D.23
exis [7]

Answer:

The answer is 1 \frac{2}{3}

The work is shown on the picture.

Step-by-step explanation: Hope this helps and mark brainliest if ya want :)!

6 0
3 years ago
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