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Svetlanka [38]
3 years ago
11

What is the value of d

Mathematics
2 answers:
finlep [7]3 years ago
8 0

Answer:71.5

Step-by-step explanation:

2d+37+1+38=2d+76=180

180-76=2d+143

143divided by 2 =71.5

pantera1 [17]3 years ago
7 0

Answer:

d = 57 degrees.

Step-by-step explanation:

The 3 angles in a triangle add up to 180 degrees, so:

2d + 1 + 38 + 27 = 180

2d = 180 - (1 + 38 + 27)

2d = 180 - 66 = 114

d = 114/2

d = 57 degrees.

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The entire exterior of a large wooden cube is painted red, and then the cube is sliced into n^3 smaller cubes (where n > 2).
svlad2 [7]

Answer:

B. 6n^2-12 n +8

Step-by-step explanation:

Given,

The number of smaller cubes = n^3

So, the number of cubes that have no coloured faces.  = (n-2)^3,

Note : If a cube painted outside having side n is split into n³ cubes, then the volume volume that is not painted = (n-2)³

Thus, the remaining cubes that have been painted red on at least one of their faces

= Total cubes - cubes with no painted face

= n^3 -(n-2)^3

=n^3 - (n^3 - 8 - 6n^2 +12n)

=6n^2-12 n +8

Hence, OPTION B is correct.

4 0
3 years ago
A wise man once said, "My age divided by three<br> reduced by 76 equals 215." What is his age?
IrinaK [193]

Answer: 873

Step-by-step explanation:

let age = x

x/3 - 76 = 215

x/3 = 291

x = 873

8 0
2 years ago
WILL MARK BRAINLIEST!!! PLEASE ANSWER!!! WRONG ANSWERS JUST FOR POINTS WILL BE REPORTED!!!!!!!!!!!!!! 100 POINTSSSSSSSSSSSSSSSSS
denis-greek [22]

Answer:

4.1 in

Step-by-step explanation:

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751=33.62r^{2},  we need the r^{2} alone so we now dive with 33. 62 on both sides, elimenating the 33.62. Now 751/ 33.62= 16.98.

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4 0
3 years ago
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harkovskaia [24]

Answer:

Only 4 I think, can I have branliest

Step-by-step explanation:

4 0
3 years ago
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12345 [234]
Just do 510 divided by 12 and that will be your answers
4 0
3 years ago
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