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kati45 [8]
3 years ago
14

Question 1 (Essay Worth 1 points) Which of the following expressions are equivalent to –3.5(2 – 3n) – 2.5n? A: –7 – 8n B: –7 + 8

n C: –7 – 13n D: –7 – n(10.5 – 2.5) E: –7 + n(10.5 – 2.5)
Mathematics
1 answer:
zzz [600]3 years ago
5 0
B is the anwser that I got
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Step-by-step explanation:

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Answer:

\large \boxed{12}

Step-by-step explanation:

We can apply Pythagoras' Theorem.

\begin{array}{rcc}a^{2} & = & b^{2} + c^{2}\\13^{2}& = & 5^{2} + c^{2}\\169& = & 25 + c^{2}\\c^{2}& = & 144\\c & = & \sqrt{144}\\& = & \mathbf{12}\\\end{array}\\\text{The other leg of the triangle is $\large \boxed{\mathbf{12}}$}

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

Not sure but I think

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