Matrix :
1 4 4
5 2 2
1 5 5
=> Determinant =
1 * (2*5 - 2*5) - 4 * (5*5 - 1*2) + 4 * ( 5*5 - 2*1)
= 1*(10 - 10) - 4*(25 - 2) + 4*(25 -2) = 1*0 + 4* 23 + 4*(25 - 2) = 0 - 4*23 + 4*23 = 0
Answer: 0
I think the answer is
5fy+7f
Answer and Step-by-step explanation:
Let us assume the number of calls be x
So
For Plan 1
Total monthly charges is $24 for unlimited calls
For Plan 2
There is a charge of $16 and $0.04 per call
We can write as
= 0.04x + $16
a) Now the inequality equation is
0.04x + $16 > $24
0.04x > $8
x > 200
b) Now if there are more than 200 calls than Plan 1 is more economical as compared with plan 2
The expression \[b^{-3\2} , b>0 \] is the equivalent to;
=1/b3/2=1/b3−−√
Answer:17/18
Step-by-step no explation
