2 years ago

PLEASE HURRY!!!! 20 POINTS simplify the following expression by combining like terms: 4x + 16y - x + 3y

Mathematics

1 answer:

Masja [62]2 years ago

3 0

Answer:

3x + 19y is the answer

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How many ways can a committee chairman choose 4 people for a subcommittee if there are 12 members on the whole committee?

Marina86 [1]

A group of k elements can be chosen from a group of n elements in $\frac{n!}{k!(n-k)!}$ ways.

$(^{12} _4)=\frac{12!}{4!(12-4)!}=\frac{12!}{4! \times 8!}=\frac{8! \times 9 \times 10 \times 11 \times 12}{2 \times 3 \times 4 \times 8!}=\frac{9 \times 10 \times 11 \times 12}{2 \times 3 \times 4}= \\ \\
=3 \times 5 \times 11 \times 3=495$

The answer is B. 495.

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2 years ago

given the arithmetic sequence 3, 7, 11, 15, ..., what is a1, the first term? What is d, the common difference? Find the 151st te

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It’s 12345678910 because the mathematical people said so.

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3 years ago

Help please............

Lubov Fominskaja [6]

That would be (9,3) <===

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3 years ago