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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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mina [271]
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3*4 = denominator of both
2*4 = numerator of first fraction
3*3 = numerator of second fraction

Your fractions should end up being 8/12 cups of raisins and 9/12 cup of almonds. You can now compare these fractions. 

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5 0
3 years ago
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IMPORTANT! WILL VOTE BRAINLIEST!!!
nikdorinn [45]

Answer:

The value of the ve = 9m/sec

Step-by-step explanation:


From the given formula, it can be conclude that this is evenly accelerated movement.

First I will rewrite given formula

vi = √ ve∧2 - 2ad   First we will square on both sides and get

vi∧2 = ve∧2 - 2ad Now we will add monom (+2ad) to both sides and get

vi∧2 + 2ad = ve∧2 -2ad + 2ad =>

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Now we will replace given data vi=7m/sec, a=8m/s∧2 and d=2m in the last formula

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7 0
3 years ago
What are the steps to answer 28=8b+13b-35
oksian1 [2.3K]

Let's solve this problem step by step.

28=8b+13b-35

Step 1: Bring 35 to 28.

28=8b+13b-35

+35            +35

63=8b+13b

Step 2: Add 8b and 13b.

63=21b

Step 3: Divide both sides by 21.

63/21=21b/21

So, the answer for this problem is 3=b.

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4 years ago
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Answer:

-3/12

Step-by-step explanation:

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