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julia-pushkina [17]
3 years ago
10

Is a dodecahedron a 3 dimensional or a dodecagon a 3 dimensional ?

Mathematics
2 answers:
navik [9.2K]3 years ago
8 0
Dodecahedron is a 3D shape, usually when it ends with hedron it is 3D.
Aleksandr [31]3 years ago
4 0
Dodecahedron is the 3D one!
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Please help me with this!!
rewona [7]
Area = b * h
Area of orange = area of big square subtract by area of small square

Small square = b^2
Big square = a^2
(a^2 - b^2) = (a - b)( a + b)

Solution: (a - b) (a + b)
8 0
2 years ago
Read 2 more answers
Which expression is equivalent to 2(a+3) when a equals 3<br><br>2(3)<br>5(3)<br>2(3)+3<br>2(3)+6​
sammy [17]
2(3+3) or 2(3)+6, so the answer is the third option. It’s just using the distributive property.
8 0
3 years ago
Read 2 more answers
5 (x + 2) = 3 (x + 8)
aleksley [76]
So first you distribute the 5 to the x and the +2 and get
5x+10=3(x+8)
 then you distribute the 3 to the other x and the +8 and get
5x+10=3x+24
subtract 3x from both sides
2x+10=24
subtract 10 from both sides and get
2x=14
divide both sides by 2 and get
x=7
8 0
3 years ago
Read 2 more answers
Given a leading coefficient of 8, polynomial roots of 1 &amp; 2, and the known point on the graph (4,5). Write an equation that
m_a_m_a [10]

Given:

The leading coefficient of a polynomial is 8.

Polynomial roots are 1 and 2.

The graph passes through the point (4,5).

To find:

The 3rd root and the equation of the polynomial.

Solution:

The factor form of a polynomial is:

y=a(x-c_1)(x-c_2)...(x-c_n)

Where, a is a constant and c_1,c_2,...,c_n are the roots of the polynomial.

Polynomial roots are 1 and 2. So, (x-1) and (x-2) are the factors of the polynomial.

Let the third root of the polynomial by c, then (x-c) is a factor of the polynomial.

The leading coefficient of a polynomial is 8. So, a=8 and the equation of the polynomial is:

y=8(x-1)(x-2)(x-c)

The graph passes through the point (4,5). Putting x=4,y=5, we get

5=8(4-1)(4-2)(4-c)

5=8(3)(2)(4-c)

5=48(4-c)

Divide both sides by 48.

\dfrac{5}{48}=4-c

c=4-\dfrac{5}{48}

c=\dfrac{192-5}{48}

c=\dfrac{187}{48}

Therefore, the 3rd root on the polynomial is \dfrac{187}{48}.

8 0
3 years ago
Which line best represents the line of best fit for this scatter plot?
allsm [11]

Answer:

Line D

Step-by-step explanation:

  • The line of best fit should be the one where majority of the points in the scatterplot lay near it
  • Line D is the line of best fit for this scatter plot
5 0
2 years ago
Read 2 more answers
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