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stich3 [128]
4 years ago
11

Evaluate 5(A + 2B) if possible. HELP ASAP!!

Mathematics
1 answer:
Rasek [7]4 years ago
4 0

Answer:

5A+10B=

5\left[\begin{array}{ccc}2&8&-4\\4&-6&0\end{array}\right] +10\left[\begin{array}{ccc}-9&5&6\\3&3&12\end{array}\right] \\=\left[\begin{array}{ccc}10&40&-20\\20&-30&0 \end{array}\right] +\left[\begin{array}{ccc}-90&50&60\\30&30&120\end{array}\right] \\=\left[\begin{array}{ccc}10-90&40+50&-20+60\\20+30&-30+30&0+120\end{array}\right] \\=\left[\begin{array}{ccc}-80&90&40\\50&0&120\end{array}\right]

Step-by-step explanation:

5(A+2B)=5A+10 B

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3 years ago
3 friends want to go for a hike. (Level 4)They pack enough water to last for 6 hours. 3 more people join the hike.How long will
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Answer:

3 hours

Step-by-step explanation:

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3 years ago
Simplify part b and part c
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4 0
4 years ago
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Find the diameter of a circle with a circumference of 443 feet. Use 3.14 for pi.
marishachu [46]

Answer:

\huge\boxed{\sf d = 141\ feet}

Step-by-step explanation:

<u>Given Data:</u>

Circumference = C = 443 ft

<u>Required:</u>

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<u>Formula:</u>

d = C / π

<u>Solution:</u>

d = 443 / 3.14

d = 141.0 feet

d = 141 feet

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
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