What is 645 rounded to the nearest ten

Mathematics

1 answer:

sergiy2304 [10]3 years ago

3 0

650 because 5 or greater in the 1's place will bump it up

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garik1379 [7]

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c. S'(3, 1), T'(1, -1), U'(0, 1)

Step-by-step explanation:

Reflection across the y-axis negates the x-coordinate, so is equivalent to the transformation ...

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Reflection across the horizontal line y=c is equivalent to the transformation ...

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So, the combined reflections are equivalent to the transformation ...

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The answer to this rests on knowing that there are four properties of multiplication (which your teacher will likely expect you to know...):

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I won't define each of these -- they should be in your notes or textbook. Look them up.

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Hope this helps!

Good luck

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