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cricket20 [7]
2 years ago
5

Multiply the first expression by the second:a2 + b2 + c2 - ab - bc - ca, a + b+ c​

Mathematics
2 answers:
Stels [109]2 years ago
8 0

Answer:

https://orion.math.iastate.edu/dept/links/formulas/form1.pdf

Step-by-step explanation:

Fiesta28 [93]2 years ago
8 0

Please find attached photograph for your answer

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Which set of values could be the side lengths of a 30-60-90 triangle?
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Answer:

A

Step-by-step explanation:

I think you are in geometry I learned this a little back...

It's hard to explain but basically one side is just (n) another is (n(square root sign))and another is (2n.)    

So the answer Is a because in this case (n) is 4  

6 0
3 years ago
Explain in words what mistake you made and how will correct it. in a group of 20 children,there were 8 girls. which is the ratio
Nataly_w [17]
Well first do 20 children minus 8 girls to find how many boys there are:
20-8=16
So there are 16 boys. Therefore we can write the ratio of girls to boys as:
8/16
Then we can simplify this ratio by dividing it by 8 to get:
1/2
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7 0
2 years ago
I need help with this no link pls
Naddika [18.5K]

Answer:

1. x = 36 equation is x + 2x + 9 = 117, then solve for x

2. x = 50 equation is x + x + 12 = 112, then solve for x

Step-by-step explanation:

4 0
2 years ago
How many terms are in the expression 4x -4 +3y?
horrorfan [7]

Answer:

three (3)

Step-by-step explanation:

4x is the first term

-4 is the second term

3y is the third term

7 0
3 years ago
To run 12 miles, how many times must you run around a park that is 2 miles long and 1 mile wide?
Veronika [31]
Pretty sure it’s 6 miles
8 0
2 years ago
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