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Drupady [299]
3 years ago
15

What is the equivalent expression 9(2a+1)

Mathematics
2 answers:
Nikitich [7]3 years ago
8 0
9( 2a+1 ) = 

Distribute parentheses using : a(b+c) = ab+ ac

9 * 2a + 9 * 1 =

18 a + 9

hope this helps!
elena-14-01-66 [18.8K]3 years ago
3 0
18a+9 is equivalent
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Can anyone please explain? Need some help :)
DedPeter [7]

Answer:

93.5 square units

Step-by-step explanation:

Diameter of the Circle = 12 Units

Therefore:

Radius of the Circle = 12/2 =6 Units

Since the hexagon is regular, it consists of 6 equilateral triangles of side length 6 units.

Area of the Hexagon = 6 X Area of one equilateral triangle

Area of an equilateral triangle of side length s = \dfrac{\sqrt{3} }{4}s^2

Side Length, s=6 Units

\text{Therefore, the area of one equilateral triangle =}\dfrac{\sqrt{3} }{4}\times 6^2\\\\=9\sqrt{3} $ square units

Area of the Hexagon

= 6 X 9\sqrt{3} \\=93.5$ square units (to the nearest tenth)

7 0
3 years ago
Mike drew a quadrilateral with four right angles. What shape could be drawn?
Darya [45]
There could be 2 possible shapes that could’ve been drawn.

A rectangle, or a square.

All of their angles are 90° angles, which are right angles.


Hope this helped!
5 0
3 years ago
Fran has 7 sheets of paper for a coloring project. If she only uses 1/3of a sheet of paper per draing how many drawings can ahe
jok3333 [9.3K]
It would be 21 because 7 times 3 equals 21 and the way you get that is 3 drawings per paper
5 0
3 years ago
the surface area of the rectangular prism is given by formula S=2 (ab+bh+ah) find the value of h when a = 10, b=6 and s=440
lorasvet [3.4K]

Answer:

10

Step-by-step explanation:

440=2(60+6x+10x)

220=60+16x

160=16x

x=10

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8 0
2 years ago
Unit 7:Polygons & Quadrilaterals Homework 4: Rhombi and squares​
iogann1982 [59]

Based on the quadrilateral given, the values of the missing measures will be:

  • VU = 15
  • SU = 21.21
  • TV = 21.21
  • SW = 10.61

<h3>Solving quadrilateral.</h3>

A quadrilateral simply means a polygon that has four sides, edges and vertices.

Based on the information given, SU = TV and this will be:

= ✓450 = 21.21

SW = 21.21/2 = 10.61

Also, for the second shape, the values will be:

OM = 46; PN = 23, ON = 46; MN = 46.

Learn more about quadrilateral on:

brainly.com/question/224113

4 0
3 years ago
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