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2 years ago

Please help!! please explain, if explained you will get a brainlest and bonus points thank you!!

Mathematics

1 answer:

babunello [35]2 years ago

4 0

Answer:

108m²

Step-by-step explanation:

So we know to find the volume for a rectangular prism we need to multiply base * height * leght.

For this problem to make it a little easier we can seperate it into 2 rectangular prisms. and then add the volume of both after.

1st prism volume:

2 * 2 * 7 = 28cm²

2st prism volume:

5 * 2 * 8 = 80m²

Final prism volume:

28cm² + 80m² = 108m²

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Fantom [35]

Answer:

$(B)\sqrt{21}\\(C)\sqrt{13+8}$

Step-by-step explanation:

Given the expression $(13 + 8) ^{1/2}$

Using law of indices: $a^{1/2}=\sqrt{a}$

$(13 + 8) ^{1/2}=\sqrt{13+8}$

Also:13+8=21

Therefore:

$(13 + 8) ^{1/2}=21^{1/2}\\=\sqrt{21}$

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3 years ago

Jamie is attaching two wires to a corner fence post to complete a horse paddock. The wires make a 90 degree angle to each other.

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Answer:

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Step-by-step explanation:

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3 years ago

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TiliK225 [7]

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2 years ago

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Step-by-step explanation:

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Step-by-step explanation:

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