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Brut [27]
3 years ago
9

Len needs to run at least 3 miles a day to get ready for a cross-country race. One lap of the school track is 400 yards. If len

runs
10 laps a day will he cover at least 3 miles? Explain
Mathematics
1 answer:
SSSSS [86.1K]3 years ago
5 0
No because 4 laps around the track is one mile so if he did then he would have only done two and a half miles
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Help! <br> I do not understand a single thing lol I’m sorry&lt;3
kati45 [8]

=<em> </em><em>8</em><em> </em>

<em>step-by-step</em><em> </em><em>explanation:</em>

<em>evaluate</em><em> </em>

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<h2 />

<em>when </em><em>c </em><em>=</em><em>-</em><em>1</em><em> </em><em>,</em><em>d=</em><em>4</em>

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4 0
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Find the inverse of the matrices if they Exist. Use the algorithm introduced in the section. [1 0 -2 -3 1 4 2 -3 4]
KiRa [710]

Answer:

\frac{1}{2} \left[\begin{array}{ccc}16&6&2\\20&8&2\\7&3&1\end{array}\right]

Step-by-step explanation:

Given is a matrix 3x3 as

\left[\begin{array}{ccc}1&0&2\\-3&1&4\\2&-3&4\end{array}\right]

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Cofactors are 16   20   7

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                         2     2    1

Hence inverse =

\frac{1}{2} \left[\begin{array}{ccc}16&6&2\\20&8&2\\7&3&1\end{array}\right]

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2 years ago
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