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tigry1 [53]
3 years ago
5

In which city is the temperature higher ? Portland- 38°F Boston- 2°C​

Mathematics
1 answer:
WINSTONCH [101]3 years ago
5 0

Answer: Boston

Step-by-step explanation: Convert -2°C to fahrenheit, it's 28.4°F.

To convert celsius to fahrenheit, multiply it by 1.8 and add 32 to it. :D

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Answer:

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1a)

The length given as words is "3 more than 7 times x"

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The expression for length would be  7x + 3

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The area is length * width

Since we already know the algebraic expressions for length and width from part (a) above, we use the formula:

Area = (7x+3)(4x-2) = 28x^2 -14x + 12x - 6 = 28x^2 -2x -6

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1c)

Given x = 10, we put this into the area expression we found in (b) above.Let's see:

28x^2 -2x -6\\=28(10)^2 -2(10) -6\\=2774

Area = 2774 sq. m

2.

We can group the first two terms and next two terms and write up:

xy-4y+7x-28\\(xy-4y)+(7x-28)\\y(x-4)+7(x-4)\\(x-4)(y+7)

That's the factored form.

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