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Paul [167]
3 years ago
15

It takes four steps to factor 48 – 3y 4 completely. Using complete sentences and the appropriate vocabulary, explain each of the

four steps.
Mathematics
1 answer:
Nezavi [6.7K]3 years ago
8 0

Answer:

3(2 - y)(2 + y)(4 + y²)

Step-by-step explanation:

48 - 3y⁴

Take 3 common:

3(16 - y⁴)

16 is 4² and y⁴ is (y²)²

3(4² - (y²)²)

Using a² - b² = (a - b)(a + b)

3(4 - y²)(4 + y²)

Again, 4 = 2²

3(2² - y²)(4 + y²)

3(2 - y)(2 + y)(4 + y²)

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A structural steel fabricator cuts 25 pieces each 16.2 centimeters long from a 6.35-meter length
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Answer: 2.2 meters

Step-by-step explanation:

The data is:

The initial piece is 6.35 meters long.

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25*16.2cm = 405cm

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Then: 405cm = (405/100) m = 4.05m

And each time that we cut a piece, we have 4mm of waste.

Then we have 25 times the 4mm of waste, this means that the total waste is:

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and 1000mm = 1m

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So the total amount that was cut is:

4.05m + 0.1m = 4.15m

The length in the channel iron will be: 6.35m - 4.15m = 2.2 meters

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3 years ago
What is the slope of the line that passes through the points (-10,8)and (-15,-7)
balandron [24]

Answer:

m = 3

Step-by-step explanation:

Use the slope formula to find the slope  m .

5 0
3 years ago
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Step-by-step explanation:

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