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masha68 [24]
4 years ago
8

Im confused on how to solve this

Mathematics
2 answers:
andre [41]4 years ago
8 0

Answer:

x=7

Step-by-step explanation:

7x-7=4x+14

3x=21

x=7

Hunter-Best [27]4 years ago
7 0

Answer:

x = 7

Step-by-step explanation:

7x - 7 = 4x + 14 export like terms to the same side of the equation

7x - 4x = 14 + 7 add like terms

3x = 21 divide both sides by 3

x = 7 is the value will make L parallel to M

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Likurg_2 [28]

Answer: 152.46 squared centimeters.

Step-by-step explanation:

  1. The equation to find the area of the trapezoid is A = ½ (6.6 + 16.5) 13.2
  2. Distribute ½ into (6.6 + 16.5) . A = (3.3 +  8.25) 13.2.
  3. Add the numbers inside the parenthesis. A =  11.55 * 13.2
  4. Multiply 11.55 * 13.2.   A = 152.46.
3 0
4 years ago
What type of polygon would a slice of a hexahedron at a vertex create? Explain. What type of polygon would a slice of an icosahe
harina [27]

Answer:

  • hexahedron: triangle or quadrilateral or pentagon
  • icosahedron: quadrilateral or pentagon

Step-by-step explanation:

<u>Hexahedron</u>

A hexahedron has 6 faces. A <em>regular</em> hexahedron is a cube. 3 square faces meet at each vertex.

If the hexahedron is not regular, depending on how those faces are arranged, a slice near a vertex may intersect 3, 4, or 5 faces. The first attachment shows 3- and 4-edges meeting at a vertex. If those two vertices were merged, then there would be 5 edges meeting at the vertex of the resulting pentagonal pyramid.

A slice near a vertex may create a triangle, quadrilateral, or pentagon.

<u>Icosahedron</u>

An icosahedron has 20 faces. The faces of a <em>regular</em> icosahedron are all equilateral triangles. 5 triangles meet at each vertex.

If the icosahedron is not regular, depending on how the faces are arranged, a slice near the vertex may intersect from 3 to 19 faces.

A slice near a vertex may create a polygon of 3 to 19 sides..

3 0
4 years ago
Evaluate 3n2 – 2an if a = –3 and n = 4.
elixir [45]

Answer:

Step-by-step explanation:

hello :

put  a=-3    and  n=4   in :  3n2 – 2an

you have : 3(4)² – 2(-3)(4) =3(16)+6(4) =48+24 = 72

4 0
3 years ago
The vertices of a rectangle are (1, -3), (4,0), (0,4) and (-3,1). What is the area of the rectangle? ​
motikmotik

Answer:

48

Step-by-step explanation:

You can use a graphing calculator like desmos or draw your own graph to figure this out. Start by graphing each of those points. Then count the width and height. Multiply them to get the area. The width and height of the rectangle were 6 and 8, so the area is 48

3 0
3 years ago
Of the 101 times I squirte with Dad with a hose last summer, the number of times I missed is 31 more than the number of times I
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