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nataly862011 [7]
3 years ago
7

Please help with these two questions

Mathematics
1 answer:
S_A_V [24]3 years ago
7 0
To answer question 12, you first need to know the definition of a <em>prism</em> and a<em> pyramid.

</em>A <em>pyramid </em> is a 3-D structure with one base, whose outer faces are made of triangles, and meet at a single point at the top.

A <em>prism</em> is any 3-D shape with a base of any number of sides, another base with the same amount of sides, and faces joining the two together on every side of the bases.

12.
Shape A is a <em>pyramid</em>, because it has one base, and all the faces join together in at one point.

Shape B is a <em>prism</em>, because it has two bases, and faces joining every side of the bases.

Shape C is a <em>prism.</em>

Shape D is a <em>pyramid.

</em>For #13, you have to know the definition of a cube to figure out the math of how many cubes there are.

A cube is a 3-D shape with six sides, all made up of squares of the same size.

The box has a volume of 120 cubic inches, and each cube is 1 inch. Since every side of a cube is equal, a 1-inch cube is one cubic inch.

This means that a box with a volume of 120 cubic inches will fit 120 of the 1 inch cubes.

1 layer of the cubes, in the diagram, is 8 cubes by 3 cubes, or 24 cubes total.

To find the number of layers needed to fill the box, you divide 120 by 24.

120 ÷ 24 = 5

The answer to #13 is 5 layers.
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What could be the answers to this question? It’s very confusing!
hichkok12 [17]

Answer:

First is x^{2} +4xy+4y^{2}

Second is y^{2} +4xy+4x^{2}

Step-by-step explanation:

Open up equations and do FOIL method.

First equation:

(x + 2y)(x + 2y)

x^2 + 2xy + 2xy + 4y^2

x^{2} +4xy+4y^{2}

Second equation:

(y + 2x)(y + 2x)

y^2 +2xy + 2xy + 4x^2

y^{2} +4xy+4x^{2}

4 0
3 years ago
The product of 16 and x is equal to 32
stiks02 [169]

Answer:

x=2

Step-by-step explanation:

16 is half of 32 so it would only be reasonable that x=2 so when you multiply 16x2 you get 32.

Hope this helps :)

3 0
3 years ago
the radius of a cylindrical construction pipe is 3 ft . If the pipe is 25ft long , what is it’s volume ?
ki77a [65]

Given:

radius of a cylindrical construction pipe is 3 ft

lenghtis 25ft long

Required:

what is it’s volume

Explanation:

volume of cylinder:

\begin{gathered} V=\pi r^2h \\  \\ here\text{ h is the length of the pipe} \\  \\ V=3.14\times(3)^2\times25 \\  \\ V=3.14\times9\times25 \\  \\ V=707\text{ ft}^3 \end{gathered}

Required answer:

V=707\text{ ft}^3

7 0
8 months ago
What is the area of the trapezoid?
DENIUS [597]

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Answer: 440 ft^2

Explanation:

I hope this helped!

<!> Brainliest is appreciated! <!>

- Zack Slocum

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

7 0
2 years ago
Read 2 more answers
How many seconds will it take to get to 150 feet if you can run 11 feet per second
postnew [5]

Answer:

13.64 seconds

Step-by-step explanation:

150 / 11 = 13.636

8 0
2 years ago
Read 2 more answers
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