3 years ago

Which matrix represents the system of equations shown below?

Mathematics

1 answer:

Leona [35]3 years ago

7 0

Answer:

121-22

Step-by-step explanation:

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So the number of total combinations is 35.

Step-by-step explanation:

We know that Ellen must take 4 courses this semester. She has a list of 3 math courses and 4 science courses.

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$C_4^7=\frac{7!}{4!(7-4)!}=35\\$

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