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Ann [662]
2 years ago
8

Find the surface area of a cube with a side length of 8 m

Mathematics
2 answers:
Rudiy272 years ago
6 0

Step-by-step explanation:

Length= 8m

Surface area = ?

Now ,

Surface  \: area =6  {l}^{2}

= 6 × 8 × 8

= 6 × 64

= 384 {m}^{2}

tresset_1 [31]2 years ago
4 0

Answer:

384 m²

Step-by-step explanation:

The formula to find the surface area of a cube is:

S.A. = 6a²

Here,

a ⇒ length of a side ⇒ 8m

<u>Let us solve it now.</u>

S.A. = 6a²

S.A. = 6 × 8 × 8

S.A. = 48 × 8

S.A. = 384 m²

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Step-by-step explanation:

To find length "z" you will have to use SOHCAHTOA.

Labelling the triangle will show us that the side marked "z" is the hyp and the side marked 39 is the opp.

sin 45 = \frac{39}{z}

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3 0
3 years ago
Write an equation of the line that passes through (18,2) and is parallel to the line 3y-x=-12 .
uysha [10]

Answer:

y = \frac{1}{3}x-4

Step-by-step explanation:

<u>Step 1:  Solve for y in the first equation</u>

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y = \frac{1}{3}x - 4

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We know that our line is parallel to the other line that has a slope of 1/3 which means that our slope is also going to be 1/3.  We also know that our line crosses the point (18, 2) which means that we can use the point slope form to determine our equation

Point Slope Form → (y-y_1) = m(x - x_1)

<u>Step 3:  Plug in the information and solve</u>

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