3 years ago

Simplify 2x^2-1+4x^2-5

Mathematics

1 answer:

alekssr [168]3 years ago

8 0

Answer:

6x^2-6

Step-by-step explanation: algebra

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Step-by-step explanation:

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Step-by-step explanation:

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school teacher and needs 22 pieces of wood, 3 over 8 ft long, for a class project. If he has a 9-ft board from which to cut the

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Answer:

Yes, he will have enough 3 over 8 ft pieces for his class.

Step-by-step explanation:

Given:

Number of wood required = 22

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Total length of the board, $L=9\textrm{ ft}$

Therefore, the number of woods that can be made using the given board is given as:

$\textrm{Number of woods made}=\frac{\textrm{Total length of board}}{\textrm{Length of each wood}}\\\textrm{Number of woods made}=\frac{L}{l}=\frac{9}{\frac{3}{8}}=9\times \frac{8}{3}=\frac{72}{3}=24$

So, he can make 24 woods of length $\frac{3}{8}\textrm{ ft}$ using the 9 ft board. But he has to make only 22 pieces.

Therefore, he has enough of the wood to make the required number of pieces.

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3 years ago

2 ( 3 r + 4 ) − 3 ( r + 1 ) = 11

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Answer:

Kindly rewrite the question clearly.

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