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Natali [406]
3 years ago
12

A rectangular pyramid has a base that is 10 millimeters long and 10 millimeters wide. The pyramid's slant height is 11 millimete

rs. What is its surface area?
Mathematics
1 answer:
miskamm [114]3 years ago
4 0
I believe it is 215 millimeters
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You have 9 chairs arranged in a circle, and wish to seat 9 people (one person per seat). The one constraint is that person A can
stiv31 [10]

Answer:

30240 number of ways are there to seat them

Step-by-step explanation:

Total number of ways of arranging 9 people on 9 chairs  in circular manners = (9-1)! = 8! =

number of ways A sit always sit next to B = AB together makes a single and

                                                                       therefore total number of arrangements for this  = 7+(AB) = 8  that is 8  persons sitting in circular manner

number of ways = (8-1)! =7! = 5040

likewise number of arrangements for A and C will be = 5040

Total number of ways such that A cannot sit next to B or C = total ways of 9 persons - total number of A always sitting next to B - total number of ways always sitting next to C  = 8! - 7!-7!

                                        = 40320- 5040-5040

                                        = 30240

=  

5 0
3 years ago
I need help plz its a test i need to do good on it
Mumz [18]

Answer:

10, 20, 6

Step-by-step explanation:

10 times 2 is 20 which is greater than 10, 20 times 2 is 40 which is greater than 10, and 6 times 2 is 12 which is also greater than ten.

7 0
3 years ago
What is the standard form of this equation of a circle?<br> (X+2)^2 + (y-7)^2=81
grin007 [14]
Here is the answer toke a second to remember but here u go

7 0
3 years ago
220.4% as a decimal?
jeka57 [31]

Answer: 2.204

Step-by-step explanation:

6 0
3 years ago
Help me with this algebra.(i put a Picture with it)​
Fantom [35]

Answer:

no Luke is not correct.

Step-by-step explanation:

4r + 5 + 2r \\ colecting \: like \: terms \: \\ 4r + 2r + 5 \\ 6r + 5

5 0
2 years ago
Read 2 more answers
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