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Molodets [167]
2 years ago
11

How do you solve this. Plz help

Mathematics
1 answer:
BartSMP [9]2 years ago
3 0
It should be 2.75 idk why it is not an option
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Answer:

The product is the difference of squares is $$\left(xy-9\right)\left(xy+9\right)={{x}^2}{{y}^2}-81$$

Step-by-step explanation:

Explanation

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$$\begin{aligned}&(x y-9)(x y+9)=(x y)^{2}-(9)^{2} \\&(x y-9)(x y+9)=x^{2} y^{2}-81\end{aligned}$$

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2 years ago
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kondaur [170]
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8 0
3 years ago
A cable installer charges $40. an hour plus a $50.00 service charge. Figure the function c(h) = ?
Hitman42 [59]

Answer:

c(h) = 40*h + 50

Step-by-step explanation:

Let h be the variable that represents the number of hours

As the cable operator charges $40.00 for an hour so for h hours, the expression will be 40*h

And  

Lastly, he has to charge $50.00 must as service charge,

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So the resulting function will be:

c(h) = 40*h + 50

3 0
3 years ago
Help me pleaseeeeeee
Vadim26 [7]

Answer:

3 boxes

Step-by-step explanation:

you would divide 12 by 4 and get 3 so shade in 3 boxes

7 0
3 years ago
Read 2 more answers
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