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Semmy [17]
3 years ago
13

Find the number from the expanded form 3* 10^4 + 7 x 10^2 + 5 x 10^0

Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
5 0

Answer:

A)30705

Step-by-step explanation:

3* 10^4 + 7 x 10^2 + 5 x 10^0

Evaluate the exponent

3⋅10^4+7⋅10^2+5⋅10^0

3⋅10000+7⋅10^2+5⋅10^0

Multiply the numbers

3⋅10000+7⋅10^2+5⋅10^0

30000+7⋅10^2+5⋅10^0

Evaluate the exponent

30000+7⋅10^2+5⋅10^0

30000+7⋅100+5⋅10^0

Multiply the numbers

30000+7⋅100+5⋅10^0

30000+700+5⋅10^0

Evaluate the exponent

30000+700+5⋅10^0

30000+700+5⋅1

Multiply the numbers

30000+700+5⋅1

30000+700+5

Add the numbers

30000+700+5

30705

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4598(345+892•231)•5617(1232+987)/2=?
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5.91430991*10^1^5

Step-by-step explanation:

4598\left(345+892\cdot \:231\right)\cdot \:5617\cdot \frac{1232+987}{2}\\=4598\cdot \:5617\cdot \frac{1232+987}{2}\left(345+206052\right)\\=4598\cdot \:5617\cdot \frac{2219}{2}\left(345+206052\right)\\=4598\cdot \:206397\cdot \:5617\cdot \frac{2219}{2}\\=\frac{2219\cdot \:4598\cdot \:206397\cdot \:5617}{2}\\=\frac{1.18286\dots E16}{2}\\=5.91431e15

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Answer:

b > -15

Step-by-step explanation:

4b - 12 - 55 < 9b + 8

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Subtract 9b from both sides.

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