2 years ago

Help with practice problem

1 answer:

5 0

Answer:

attached above with detail explanation.

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Llana [10]

Answer: .0512

Step-by-step explanation:

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3 years ago

Kobotan [32]

Answer:

81.39% increase.

Step-by-step explanation:

Given: There is change in number from 43 to 78.

First lets find the amount of change or difference in number.

Difference in number= $78-43= 35$

∴ Difference in number show that there is an increase of 35 number.

Now, finding the percent change in the number.

Percent= $\frac{Difference\ in\ number}{base\ number} \times 100$

⇒ Percent change in number= $\frac{35}{43} \times 100= 81.39\%$

∴ 81.39% increase in the number.

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3 years ago

gayaneshka [121]

$r^2-49=r^2-7^2\\\\/use\ a^2-b^2=(a-b)(a+b)/\\\\=\boxed{(r-7)(r+7)}$

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3 years ago

igor_vitrenko [27]

Answer:

1810

640+30=670

1573-680=903

903+907=1810

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3 years ago

bogdanovich [222]

The digit in the tens place is 10 times bigger than the digit in the ones place

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3 years ago