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melamori03 [73]
3 years ago
10

WILL GIVE BRAINLIEST TO PERSON WHO ANSWERS

Mathematics
1 answer:
Tpy6a [65]3 years ago
7 0
A² - 225 = (a-15)(a+15)
..................................................................
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Answer for number 4 is \frac{\bold2}{\bold3} hour.

Step-by-step explanation:

Maximum hour spent for all homework (English homework + math homework) is 2 hours.

Let us assume the hours spent for English homework be 'e'.

It is given that:

(Hours spent for math homework) = 2 × (Hours spent for English homework)

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Total hours spent = (Hours spent for math homework) + (Hours spent for English homework)

Total hours spent = 2e + e = 3e

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Therefore number of hours spent on English homework is equal to \frac{\bold2}{\bold3} hours.

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3 years ago
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50.2 square cm

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area \: of \: circle = \pi {r}^{2}  \\  = 3.14 \times  {4}^{2}  \\  = 3.14 \times 16 \\  = 50.24 \:  {cm}^{2}  \\  = 50.2 \:  {cm}^{2}

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