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slamgirl [31]
3 years ago
14

Find an expression for the number of colored border tiles needed for any N x N square center.

Mathematics
1 answer:
nekit [7.7K]3 years ago
7 0

Answer:

8N - 4 border tiles.

Step-by-step explanation:

There are 4 border tiles in each corner and between  the tiles there are N-2 tiles along the 4 sides.

So the number of border tiles

= 4+ 4(N - 2)

= 4 + 4N - 8

= 8N - 4.

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Change 0.2 into a fraction in its lowest terms with working
densk [106]

Answer:

1/5

Step-by-step explanation:

0.2

=2/10

=1/5

8 0
3 years ago
Read 2 more answers
Which expression shows 36 + 63 as the product of their greatest common factor and the sum of two whole numbers with no common fa
jarptica [38.1K]

Hey!

Hope this helps...

~~~~~~~~~~~~~~~~~~~~~~~~~~

The first thing we know is that all the answers equal 99, so we cannot cross any answer off, however, what we want to know is what answer (after distribution) looks like 36 + 63...

A.) 11(3 + 6) > 33 + 66

Does 33+66 look like 36+63?

NO

B.) 9(4 + 7) > 36 + 63

Does 36+63 look like 36+63?

YES

C.) 11(4 + 5) > 44 + 55

Does 44+55 look like 36+63?

NO

D.) 3(15 + 18) > 45 + 54

Does 45+54 look like 36+63?

NO

So...

The answer is: B.) 9(4 + 7)


4 0
3 years ago
Are the graphs of −5y=2x+3 and y=25x+4 parallel, perpendicular, or neither?
saw5 [17]
Parallel graphs have the same slope. perpendicular has opposite reciprocal slopes. These equations have slopes of -2/5 and 25 so they are neither.
6 0
3 years ago
D) The perimeter of room is 28 m. and the height is 3.5 m. Find the area of 4 walls.
mote1985 [20]

Answer: 98

Step-by-step explanation:

Area of four walls = Curved surface area

                             = perimeter × height

                              =    28          ×   3.5

                              = 98 m square  

7 0
1 year ago
Solve for r.<br> 686 = 14r
Naily [24]

Answer:

r = 49

Step-by-step explanation:

686 = 14r

686/14= 49

r = 49

8 0
3 years ago
Read 2 more answers
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