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Nonamiya [84]
3 years ago
9

Need a little help plz. I think it could be 2AM but I’m not sure.

Mathematics
1 answer:
balu736 [363]3 years ago
3 0

Answer:

2 am

Step-by-step explanation:

It takes 1 hour to pour the cement.  We will be done at 8 pm

It will take 6 hours to set at 70 degrees

8+6 hours = 14

But we circle around at 12

14-12 =2

The cement will be set at 2

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Answer:

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Step-by-step explanation:

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And we want to find (f-g)(x).

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Therefore:

\begin{aligned} (f-g)(x)&=f(x)-g(x)\\ &=(x^2-3x-10)-(x-5)\end{aligned}

Simplify:

\begin{aligned} &=x^2-3x-10-x+5 \\ &=(x^2)+(-3x-x)+(-10+5) \\ &=x^2-4x-5\end{aligned}

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