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marshall27 [118]
3 years ago
6

An architect intends to make a 1/25 model of a shed. If the shed is 15m X 8m X 3m how large will the model be ? Answer is mm.

Mathematics
1 answer:
Korolek [52]3 years ago
3 0
Vol of shed= l*b*h
=15*8*3 = 360 m^3

Now,
1/25 model of the shed will be = 1/25*360 m^3
= 14.4 m^3
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If 2 is one root of the equation 4x3 + kx - 24 = 0, then the value of k is
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Answer:

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Step-by-step explanation:

We are given the equation:

\displaystyle 4x^3 + kx - 24 = 0

And that <em>x</em> = 2 is a root. And we want to determine the value of <em>k</em>.

By definition, since <em>x</em> = 2 is a root of the equation, when <em>x</em> = 2, the equation must equal zero:

\displaystyle 4(2)^3 + k(2) - 24 = 0

Solve for <em>k: </em>

<em />\displaystyle \begin{aligned} 4(2)^3 + k(2) - 24 & = 0 \\ \\ 32 + 2k - 24 & = 0 \\ \\ 2k + 8 & = 0 \\ \\ k & = - 4\end{aligned}<em />

<em />

Hence, the value of <em>k</em> is -4.

In conclusion, our answer is B.

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Step-by-step explanation:

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