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Neporo4naja [7]
3 years ago
12

What's is (7x10^5) x (3x10^2)

Mathematics
1 answer:
denpristay [2]3 years ago
8 0

Answer:

If you expand that, it comes out to 200000000, or in scientific notation, 2.0 × 10⁸.

Step-by-step explanation:

Starting with:

(7 × 10⁵) × (3 × 10²)

Since everything is multiplied, we can drop the brackets:

= 7 × 10⁵ × 3 × 10²

Now we can multiply seven by three, and both powers of ten:

= 20 × 10⁷

We can expand this now as

200000000

or in proper scientific notation:

2.0 × 10⁸

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vodomira [7]
The number of children who contribute toward the present is represented as 'e'

The cost of the present is 120 and the children split the cost evenly between them. The expression for this is \frac{120}{e}

Liam has to give \frac{120}{e} towards the present

Liam has 250 with him

If he gives \frac{120}{e} away, then the money he has left is:

250- \frac{120}{e}
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Answer:

= 40%

Step-by-step explanation:

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= (20 x 100) ÷ 49.99

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Suppose that you have ​$11 comma 000
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Answer:

The financial advisor is not using percentage properly.

Percentage loss=2%

Step-by-step explanation:

original amount invested=$11000

By the end of the first year, there was a decrease by 30% over the original amount.

This implies that the amount invested at after the end of the first year or at the beginning of the second year

=  \frac{70}{100} \times 11000

=$7,700

This amount has increased by 40%

=  \frac{140}{100} \times7700

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Since the original amount invested is greater than the amount at the end of the second year, there was a loss

Hence percentage loss

=\frac{11000 - 10780}{1100} \times 100\%

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