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dezoksy [38]
2 years ago
8

Which expression is equivalent to (3a)-2? O o 3a2 ܝ | ܝ | ܚ| ܘ ܩ|ܛܘ

Mathematics
1 answer:
Bad White [126]2 years ago
6 0
Number 1 is correct 1/9a2
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85% of z is 106,250. What is z?
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Of means multiply and is means equals

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Will mark brainliest!!! Two trains leave towns 663 kilometers apart at the same time and travel toward each other. One train tra
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Answer: rate of train A = 120 km/h

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Let y = the speed of train B

One train travels 19 km/h slower than the other. Let train B be the slower train. Therefore,

x = y + 19 - - - - - - - - - -1

Recall

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x × 3 = 3x km

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Substituting x = y + 19 into equation 2, it becomes

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3 years ago
How many of hours of work is normal for a shift?
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3 years ago
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