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HACTEHA [7]
3 years ago
6

Simplify 2 x squared - y for x=3 and y=-2

Mathematics
2 answers:
zheka24 [161]3 years ago
7 0

Answer:

22

Step-by-step explanation:

2x^2 - y     when x + 3 and y = -2

2(3)^2 - (-2)

2(9) + 4

18 + 4

22

mr_godi [17]3 years ago
5 0
2x^2 - y     when x + 3 and y = -2

2(3)^2 - (-2)

2(9) + 4

18 + 4

22

Hope this helps,

Brian
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Answer:

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Step-by-step explanation:

If they are both increased by 7, you will have 12/18, which is equal to 2/3

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Answer:

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Step-by-step explanation:

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I hope this helps you




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3 0
3 years ago
Read 2 more answers
Find 6.75% of 260 plzzzzzzzzzzzzzzzzzzzzzzzzzzzz helppppppppppppppp
ICE Princess25 [194]

Answer:

17.55

Step-by-step explanation:

. We assume, that the number 260 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 260 is 100%, so we can write it down as 260=100%.

4. We know, that x is 6.75% of the output value, so we can write it down as x=6.75%.

5. Now we have two simple equations:

1) 260=100%

2) x=6.75%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

260/x=100%/6.75%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 6.75% of 260

260/x=100/6.75

(260/x)*x=(100/6.75)*x       - we multiply both sides of the equation by x

260=14.814814814815*x       - we divide both sides of the equation by (14.814814814815) to get x

260/14.814814814815=x

17.55=x

x=17.55

now we have:

6.75% of 260=17.55

8 0
4 years ago
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marusya05 [52]

Answer:

She has to do gardening 16 times

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3 years ago
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