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Alexus [3.1K]
3 years ago
9

30 points! The solutions to the equation: 2x2 + x-1 = 2 are x=-3/2 or X=___

Mathematics
1 answer:
frez [133]3 years ago
3 0

Answer: A quadratic equation is one of the form ax2 + bx + c = 0, where a, b, and c are numbers, and a is not equal to 0. So I think x = 4 but not 100%

Sorry if I'm wrong but I hope this helps

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Step-by-step explanation:

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3 years ago
In the diagram below what is the approximate length of the minor arc XY
sveta [45]

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5 0
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Read 2 more answers
What is the ratio of a to b 9/17= 3a/ a+b<br><br> 3/14<br> 6/17<br> 13/17<br> 50/9
Anarel [89]

Answer:

3/14

Step-by-step explanation:

We want to find the ratio of a to b, or a/b

9/17 = 3a/ (a+b)

Multiply each side by 17

17*9/17 =17* 3a/ (a+b)

9 = 51 a/ (a+b)

Multiply each side by (a+b)

9 (a+b) = 51a

Distribute  the 9

9a +9b = 51a

Subtract 9a from each side

9a-9a +9b =51a-9a

9b = 42a

Divide each side by b

9b/b = 42a/b

9 = 42a/b

Divide each side by 42

9/42 = a/b

But we can simplify 9/42 because each is divisible by 3, so divide 9 and 42 by 3

3/14 = a/b

5 0
4 years ago
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