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yarga [219]
3 years ago
5

What value of n makes this expression equals to 6 3n-(2+n)

Mathematics
1 answer:
coldgirl [10]3 years ago
6 0
N = 4
(3)(4)-(2+4) = 12 - 6 = 6
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All the edges of a cube have the same length. Tony claims that the formula SA = 6s, where s is the length of
Darina [25.2K]

Answer:

Here's what I get  

Step-by-step explanation:

a. Net of a cube

Fig. 1 is the net of a cube  

b. Does the formula work?

Tony's formula works if you ignore dimensions.

There are six squares in the net of a cube.

If each side has a unit length s, the total area of the cube is 6s.

c. Will the formula work for any rectangular prism?

No, because a rectangular prism has sides of three different lengths — l, w, and h — as in Fig. 2.

d. Area of a rectangular prism

A rectangular prism has six faces.

A top (T) and a bottom (b) — A = 2×l×w

A left (L) and a right (R)    —   A = 2×l×h

A front (F) and a back (B) —   A = 2×w×h

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If l = 5 m, w = 6 m and h = 8 m,

\begin{array}{rl}A &=& \text{2$\times$ 5 m $\times$ 6 m + 2$\times$ 5 m $\times$ 8 m + 2 $\times$ 6 m $\times$ 8 m}\\&=& \text{60 m}^{2} + \text{80 m}^{2} + \text{96 m}^{2}\\&=& \textbf{236 m}^{2}\\\end{array}

8 0
3 years ago
Give the most precise selection
inn [45]

Answer:

Its definitley square to be precise so that's my answer, but its also a rhombus

Step-by-step explanation:

assuming a is 1, regardless, graph would always be square, which is a rhombus. hope  square is correct :)

7 0
3 years ago
The graph below is correct for the linear equation y=-3. <br><br> True<br> False
Oksana_A [137]

Answer:

False.

Step-by-step explanation:

The graph that is shown is correct for the equation x= -3. The graph for y= -3 would run vertically, not horizontally.

6 0
3 years ago
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Katarina [22]

Answer:

11+k=29

Step-by-step explanation:

So "more than" means addition.

let's solve this for fun

11 + k =29

k = 29-11

k= 18

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2 years ago
What is 713.49 written in standard form​
Fantom [35]
It’s Seven Hundred Thirteen point forty-nine
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