Answer:
b. -33
Step-by-step explanation:
The question is about finding the determinant of a 2×2 matrix
General formula; when given matrix A =[ b c ]
[ d e]
the determinant of A = (e×b)-(c×d)
Evaluate
(3 -3)
(-5 -6) = (-6×3) - ( -5×-3)
= (-18)- ( 15) = -33
2^1 - 1 = 1
2^2 -1 = 2
2^3 -1 = 4
2^4 - 1 = 8
2^5 -1 = 16
2^6 -1 = 32
2^7 - 1 = 64
2^8 -1 = 128
Sum = 1 + 2 +4 + 8 + 16 + 32 +64 + 128 = 255
Answer is B
8:20 are the two numbers ur welcome :)
Answer: 2 states
Step-by-step explanation:
Every year for 8 years, the Williams family visited 6 different states on vacation. This means for 8 years, the family have visited:
= 8 × 6
= 48 states
Since there are 50 states in total, that means we will subtract 48 from 50. This equals :
50 - 48 = 2 states.
They've 2 states left to visit
Answer:
55/9
Step-by-step explanation:
We need to make the denominators the same:
Now simply add the numerators:
Simplify by reducing:
Solution as a mixed number: 
