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luda_lava [24]
2 years ago
5

Construct a matrix of order 3×1​

Mathematics
1 answer:
Alex73 [517]2 years ago
4 0

Step-by-step explanation:

A matrix of order 3×1 means it has 3 rows and one column.

\huge \red{ \begin{pmatrix} a \\\\b \\\\c \end{pmatrix} }

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Kara earned $136.75 last week working 16 hours. She earned $10.50 per hour at the fast food restaurant and $4.25 per hour helpin
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Answer:

ANSWER: she worked 11 hours at the fast food restaurant and 5 hours helping her aunt

Step-by-step explanation:

First we are going to try to find how many hours she worked on the fast food restaurant so you multiply 4.25 time 16 and x

10.50x + 4.25(16-x) =136.75

10.50x + 68 - 4.25x= 136.75

Then, you subtract 68 from both sides and subtract 4.25x from 10.50x

6.25x=68.75

Divide

X=11 that is how many hours she worked at the FAST FOOD RESTAURANT

Then 16-11 and that gives us how many hours she helped her aunt.

3 0
3 years ago
Can someone help me with this math problem? I have no idea where to begin.<br> Solve: |y + 8| ≥ 3
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7 0
2 years ago
Which is the correct step below for using the grouping method to factor the following polynomial? 8x - 6 - 12x2 + 9x
IrinaVladis [17]
8x - 6 - 12x^2 + 9x

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A great form to prove this is by using a calculator and dividing -9 by 6 this should get you the answer of 1.5!

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