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postnew [5]
2 years ago
14

Please answer both questions right answers get ✨brainlest!✨

Mathematics
2 answers:
german2 years ago
8 0

Hii :)

First, what is volume?

Volume is a scalar quantity expressing the amount of three-dimensional space enclosed by a closed surface. For example, the space that a substance (solid, liquid, gas, or plasma) or 3D shape occupies or contain

<u><em>FIRST ONE IS UNDERLINED</em></u>

<u>Now, lets answer.</u>

<u>Volume = lwh</u>

<u>Surface Area = 2(lw + lh + wh)</u>

<u />

<u />

<u>So, whats the answer?</u>

<u>Area of the floor is 693 sq ft</u>

<u />

<u />

<u />

<u>--------------Steps--------------</u>

<u />

<u />

<u>The formula for the area of a rectangle is:</u>

<u />

<u />

<u>A=l×w</u>

<u />

<u />

<u>The formula for the volume for a rectangular cube is:</u>

<u />

<u>V=l×w×h</u>

<u />

<u />

<u>We can substitute:</u>

<u />

<u>2079ft  3 for V</u>

<u />

<u />

<u>3ft for h</u>

<u />

<u />

<u>A for  l×w</u>

<u />

<u>And then solve for A  to find the area of the floor: v=l×w×h becomes:</u>

<u />

<u />

<u>2079ft 3=A×3ft</u>

<u />

<u>Therefore,Area of the floor is 693 sq ft</u>

The second question:

8 1/2 is 8.5. 3 1/4 is 3.25

3*8.5*3.25 = 82.875

~NatLikesAnime~

#LearningWithBrainly

Marat540 [252]2 years ago
6 0
Answer...to finding the volume of the rectangular prism.....27 3/8 because volume=Length multiplied by Height multiplied by width on cubes and rectangular prism

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a) By distributive law of sets, we have;

A ∩ (B ∪ C) = (A ∩ B) ∪ (A ∩ C)

From the complementary law of sets, we have;

A ∩ A' = ∅

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A ∩ (A' ∪ B) = (A ∩ A') ∪ (A ∩ B) (distributive law of sets)

A ∩ A' = ∅ (complementary law of sets)

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∴  A ∩ (A' ∪ B) = A ∩ B

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(A ∪ B)' = A' ∩ B'

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A ∩ (A' ∩ B') = (A ∩ A') ∩ B'

A ∩ A' = ∅ (complementary law of sets)

Therefore, (A ∩ A') ∩ B' = ∅  ∩ B' = ∅

Which gives;

A ∩ (A ∪ B)' = ∅.

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