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DIA [1.3K]
3 years ago
15

2-An 83cm piece is cut from a length of ribbon measuring 1.3 metres. What length is left?

Mathematics
1 answer:
Delvig [45]3 years ago
3 0

Answer:

81.7cm is the length left behind

Step-by-step explanation:

83 -1.3 =81.7

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Which of the expressions is rational? 25 + 2 7 − 2 64 + 45
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Answer:

All of the expressions

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All of the expressions are whole numbers, so they are all rational.

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5 0
3 years ago
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Vertex of x^2-10x+30
Shtirlitz [24]

The easiest way to find the vertex is to convert this standard form equation into vertex form, which is y = a(x - h)^2 + k.

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Next, we want to make what's inside the parentheses a perfect square. To do that, we need to divide the x coefficient by 2 and square it. In this case, the result is 25. Add 25 inside the parentheses and subtract 25 outside of the parentheses: y = (x^2 - 10x + 25) + 30 - 25

Next, factor what's inside the parentheses and combine like terms outside of the parentheses, and your vertex form is: y = (x - 5)^2 + 5.

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3 years ago
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