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Ghella [55]
4 years ago
15

Cuanto es (4x+5)(4x+5)

Mathematics
2 answers:
docker41 [41]4 years ago
6 0

Answer:

If your simplifying it then it would just be (4x+5)x^{2}

Step-by-step explanation:

Pachacha [2.7K]4 years ago
4 0

Answer:

16x^2+40x+25

Step-by-step explanation:

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For the function f(x) = 2x^2-7<br><br> f(-2) =
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5 0
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3 years ago
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The first bricklayer can build a wall in 15 days, the second bricklayer can build the same wall in 20 days. How long will it tak
Ugo [173]

Answer:

It takes <u>8  4/7 </u>days for both bricklayers to build the wall together.

Step-by-step explanation:  

The first bricklayer takes 15 days to build the wall, which means it builds 1/15 of the wall per day.

The second bricklayer takes 20 days to build the wall, which means it builds 1/20 of the wall per day.

So if they build the wall together, the expression below will tell how much of the wall they build per day together.

1/15 + 1/20

To add the fractions, we must find a common denominator, which is 60.  

4/60 + 3/60, which equals 7/60.

So, they can build 7/60 of the wall per day together.  How many days will it take them?  We must find how many times 7 fits into 60, which can be done by solving 60/7, which is 8 4/7.  

So, it takes 8 4/7 days for both bricklayers to build the wall together.

7 0
3 years ago
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4 years ago
What is the area of a circle with a radius of 4 ft?<br> ft² <br> (Use 3.14 for Pi.)
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Answer:

A≈50.27ft²

Step-by-step explanation:

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3 years ago
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