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3 years ago

Are these correct? Please help with #12

Mathematics

1 answer:

BartSMP [9]3 years ago

8 0

All of them seem pretty correct.
Also the answer to 12 is this...

Remove unnecessary parentheses
-6x2/3p^8x3

Then reduce the #’s with the greatest common divisor 3

-6x2p^8

Calculate the product

-12p^8

And that’s your answer:)))

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Assume the world catch of fish in 1950 was 12 million tons and in 1955 it was 96 million tons.

Rama09 [41]

The rate of change is 16.8 million tons per year

Solution:

Given that, the world catch of fish in 1950 was 12 million tons and in 1955 it was 96 million tons

The average rate of change is given by formula:

$\text{ Average rate of change } = \frac{\text{ change in value }}{\text{ number of years }}$

Value in 1950 = 12 million tons

Value in 1955 = 96 million tons

Change in value = value in 1955 - value in 1950

Change in value = 96 million - 12 million = 84 million tons

Number of years = 1950 to 1955 = 5 years

Substitute the given values in formula,

$\text{ Average rate of change } = \frac{84 \text{ million tons}}{5} = 16.8 \text{ million tons}$

Thus rate of change is 16.8 million tons per year

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