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ss7ja [257]
3 years ago
11

Please help me I don't know how to do this

Mathematics
2 answers:
zhenek [66]3 years ago
7 0
It is 9 squares. Todayyyyy

adell [148]3 years ago
4 0
There are 9 squares on that figure
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Which is equivalent to 3(x-4)-3(2x-7)=23
adelina 88 [10]

Answer:

x=-\frac{14}{3}

Step-by-step explanation:

3x-12-6x+21=23

-3x+9=23

-3x=14

x=-\frac{14}{3}

4 0
2 years ago
I need to find the slope and b <br> Y=mx+b <br> HELP ME
Naddika [18.5K]

Answer:

y=-\frac{4}{3}x+20

Step-by-step explanation:

stupid enough

y=mx+b

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

slope = 16-12/3-6

-4/3

y=-\frac{4}{3}x+b

plug in x and y

16=-4/3(3)+b

b=20

<h2><em><u>Red</u></em></h2>
7 0
2 years ago
Find the slope of the line that goes through the given points (8,5) (6,7)
vazorg [7]
To find the slope of a line that goes through given points with known coordinates, you divide the subtraction of the y of the second point minus the y of the first point, by the subtraction of the x of the second point minus the x of the first point:
m = (yB-yA) / (xB-xA)

Let A(8,5) and B(6,7).
With yB = 7; yA = 5; xB = 6; xA = 8
m = (7-5) / (6-8)
m = 2/-2
m = -1

So the slope of the line that goes through the given points (8,5) and (6,7) is m = -1.

I've added a pic of the line with both points under the answer.

Hope this Helps! :)

4 0
3 years ago
can someone please answer the first four for me? Also can someone please explain it to me, because I don't fully understand​
pentagon [3]

1                           2

a^{2} +b^{2} =c^{2} \\9^{2} + 13^{2} =c^{2}\\81+169=c^{2} \\250=c^{2} \\125=c        a^{2} +b^{2} =c^{2} \\16^{2} +18^{2} =c^{2} \\256+324=c^{2} \\580=c^{2} \\290=c

3                          4

a^{2} +b^{2} =c^{2} \\19^{2} +14^{2} =c^{2} \\361+196=c^{2} \\557=c^{2} \\278.5=c      a^{2}+ b^{2}=c^{2} \\10^{2} +11^{2}=c^{2} \\100+121=c^{2} \\221=c^{2} \\110.5=c

6 0
3 years ago
What is the area of a circle that has a diameter of 18"?
lubasha [3.4K]
Since the formula for the area of a circle is Pi x r squared, the area would be 81 x Pi (you teacher may want you to use Pi as 3.14 or put it in your calculator).
7 0
3 years ago
Read 2 more answers
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