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AleksAgata [21]
3 years ago
12

Emma ran 3.86 miles yesterday. Today, she ran 3.82 miles. How far did Emma run all together? miles

Mathematics
2 answers:
Luda [366]3 years ago
7 0

Answer:

7.68

Step-by-step explanation:

Just add them :)

Elena-2011 [213]3 years ago
5 0

Answer:

3.86+3.82= 7.68

Step-by-step explanation:

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n =  - 1

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Coffee costs $18.96 for 3 pounds. And
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Answer:

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Step-by-step explanation:

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3 years ago
For the matrices below. Find all (real) eigenvalues. <br><br> A= [7 9]<br> [0 9]
Jet001 [13]

Answer:

The answer is "9 and 7".

Step-by-step explanation:

Given:

A=\left[\begin{array}{cc}7&9\\0&9\end{array}\right]

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|A-\lambda \cdot I|= 0\\\\

\to |\left[\begin{array}{cc}7&9\\0&9\end{array}\right]-\lambda \left[\begin{array}{cc}1&0\\0&1\end{array}\right] |=0\\\\\\ \to |\left[\begin{array}{cc}7&9\\0&9\end{array}\right]- \left[\begin{array}{cc}\lambda&0\\0&\lambda\end{array}\right] |=0\\\\\\\to|\left[\begin{array}{cc}7-\lambda &9\\0&9-\lambda\end{array}\right]|=0\\\\\\\to|(7-\lambda)(9-\lambda)|=0\\\\\to (7-\lambda)(9-\lambda)=0\\\\\to 7-\lambda=0 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 9-\lambda=0\\\\

\to \lambda=7 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \lambda=9\\\\

8 0
3 years ago
Luis bought stock for $83.60.The next day the price increased $15.35.This new price changed -4.75% the following day.what is the
Alexxandr [17]

83.60 - 15.35 - 4.75
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3 years ago
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