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lesantik [10]
3 years ago
9

Plz answer I need help my teacher doesn't explain things good

Mathematics
1 answer:
Novay_Z [31]3 years ago
3 0
270 is most probably the answer
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How to find the area of an octagon. Just the formula.
Softa [21]

Answer:

A=2(1+√2)a2

Step-by-step explanation:

6 0
3 years ago
Please help. I’ll mark you as brainliest if correct!
OLEGan [10]

Answer:

x +0y+0z = 400

-x +y+0z = 150

-8x +0y +z = 250

Step-by-step explanation:

The last column is the solution

The rest of the columns are the coefficients of the variables

x +0y+0z = 400

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In 1992, the average electric bill for a single
Aleksandr [31]

Answer:

Price went up, $24.64/year for 28 years

Step-by-step explanation:

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3 years ago
Richard and Stephen win some money and share it in the ratio 2:1. Richard gets £12 more than Stephen. How much did Stephen get?​
nevsk [136]

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12

Step-by-step explanation:

because ratio 2 to 1 = all =3 if Richard got 12 more than stephan that is the one more so In 2 to 1/1=12 so stephan gets 12

8 0
3 years ago
Read 2 more answers
Find the area of the rhombus
trapecia [35]

Answer:

25

Step-by-step explanation:

area of the rhombus=1/2×d1×d2

1/2×5×10

=25

4 0
2 years ago
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