F(1+i) = (1+i)^4 -2(1+i)^3 -(1+i)^2 +6(1+i) - 6;
But, (1+i)^2 = 1^2 + 2*1*i + i^2 = 1 + 2i - 1 = 2i; because i^2 = -1;
(1+i)^4 = [(1+i)^2]^2 = (2i)^2 = 4*i^2 = -4;
(1+i)^3 =(1+i)^2 * (1+i) = 2i * ( 1 + i ) = 2i + 2i^2 = 2i - 2 ;
Then, f(1+i)= -4 - 2( 2i - 2 ) - 2i + 6( 1 + i ) - 6 = - 4 + 4i + 4 + 6 + 6i - 6 = 10i which isn't 0 ;
Finally, 1+i isn't zero of f(x);
Answer:
Step-by-step explanation: I don’t know the answer but if you don’t know what the median and mean is I’ll tell you.
Mean: is the average of the numbers.
Median: The middle number found by ordering all data points and picking out the one in the middle (or if there are two middle numbers, taking the mean of those two numbers). Example: The median of 4, 1, and 7 is 4 because when the numbers are put in order (1 , 4, 7) , the number 4 is in the middle.
Answer:
the company should process 600 statements in order to process in total 300 statements per day
Step-by-step explanation:
since the requirement is 300 statements/day but the company processes on average 1 statement/2 days (0.5 statements/day) , then the company has to process
number of statements required = 300 statements/day / (0.5 statements/day) = 600
then the company should process 600 statements in parallel ( assuming that is has enough capacity and each customer statement is not affected by the others) in order to process in total 300 statements per day
Answer:
A (0, - 2 ) or A (0, 6 )
Step-by-step explanation:
Using the distance formula
d =
with (x₁, y₁ ) = B(3, 2) and (x₂, y₂ ) = A(0, y )
AB =
=
=
Given AB = 5 then equating gives
= 5 ( square both sides )
9 + (y - 2)² = 25 ( subtract 9 from both sides )
(y - 2)² = 16 ( take square root of both sides )
y - 2 = ± = ± 4 ( add 2 to both sides )
y = 2 ± 4
Then y = 2 - 4 = - 2 or y = 2 + 4 = 6
Possible coordinates of point A are
A (0, - 2 ) or A (0, 6 )
Answer:
8.34 ×10^4 as in sceintific notation so in normal
8.39×10^4 = 83900
and 3.84 × 10^-3 = 0.00384
Hope it helps