3 years ago

What is the answer for 5.2 × 10-9 + 3.1 × 10-8 = × 10?

1 answer:

3 0

Subtract x^10 from both sides. add 17 to both sides. divide both sides by 7.3 take root and the answer should be x=1.08821, -1.08821

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Rainbow [258]

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nirvana33 [79]

Answer:

1152

Step-by-step explanation:

4 boys and 4 girls be arranged in a row such that no two boys and no two girls are next to each other.

Two boys and two girls are not next to each other. so one boy and one girl are next to each other in two ways.

BGBGBGBG, GBGBGBGB

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So number of ways = $2 \cdot 4! \cdot 4!=2 \cdot 24 \cdot 24=1152$

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3 years ago