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Rasek [7]
3 years ago
11

Whats the answer??? -|- 3 - (-9) |-| 16|

Mathematics
2 answers:
nordsb [41]3 years ago
8 0

Answer:

-28

Step-by-step explanation:

-12 - 16 = - 28

shxhfjdjxhcjfjdnxhc

Lesechka [4]3 years ago
5 0
I’m not sure but I think it’s -10
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Expansion Numerically Impractical. Show that the computation of an nth-order determinant by expansion involves multiplications,
posledela

Answer:

  • number of multiplies is n!
  • n=10, 3.6 ms
  • n=15, 21.8 min
  • n=20, 77.09 yr
  • n=25, 4.9×10^8 yr

Step-by-step explanation:

Expansion of a 2×2 determinant requires 2 multiplications. Expansion of an n×n determinant multiplies each of the n elements of a row or column by its (n-1)×(n-1) cofactor determinant. Then the number of multiplies is ...

  mpy[n] = n·mp[n-1]

  mpy[2] = 2

So, ...

  mpy[n] = n! . . . n ≥ 2

__

If each multiplication takes 1 nanosecond, then a 10×10 matrix requires ...

  10! × 10^-9 s ≈ 0.0036288 s ≈ 0.004 s . . . for 10×10

Then the larger matrices take ...

  n=15, 15! × 10^-9 ≈ 1307.67 s ≈ 21.8 min

  n=20, 20! × 10^-9 ≈ 2.4329×10^9 s ≈ 77.09 years

  n=25, 25! × 10^-9 ≈ 1.55112×10^16 s ≈ 4.915×10^8 years

_____

For the shorter time periods (less than 100 years), we use 365.25 days per year.

For the longer time periods (more than 400 years), we use 365.2425 days per year.

8 0
3 years ago
PLS HELP ANSWER ASAP MARK BRAINLEIST​
Alenkinab [10]

X is always dependant to Y. so that should answer the 1st one. the 2nd looks to be around 17-18. 17.5 maybe. and the 3rd is yes cause he does not go to the pool so it isnt any cost.

3 0
3 years ago
Cassie rolls a fair number cube with 6 faces labeled 1 through 6 she rolls the number cube 300 times which results is most likel
ollegr [7]
It depend upon what you roll it could be 6 because there are 6 faces are the dice 
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2 years ago
Which one is it and why? Please actual answers only
Andrej [43]

Answer:

The first answer, 3(pi) km^2

Step-by-step explanation:

3 x pi squared determines the area

7 0
3 years ago
Read 2 more answers
write the equation in slope-intercept form of the line that has a slope of 2 and contains the point (3,7)
mario62 [17]
Slope intercept form is y=mx+b

y= m or 2 because that is your slope but now all you need to is find your begin or find the point (3,7) on the graph.                
8 0
3 years ago
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