Let's plug in 2 as "n" as it is greater than one.
So it should be the absolute value of ((1/2) +(7/8)i)^2
Let's evaluate the equation,
((1/4)+(7i/8)+(49/64)i^2)
Now, the definition of "i" is that when you square it, you get negative one as the answer.
Now plug that in and you get,
((1/4)-(49/64)+(7i/8))which is equal to: (-33/64)+(7i/8)
But we aren't done just yet!
Since there is an absolute value, it is the same thing as the square root of ((-33/64)^2)+(7/8)^2) Which is (65/64)^2 and square root it and it is 65/64. So it is therefore A.
Edits: correction.
Answer:
I think 5 is wrong but 1 and 4 are right
Answer:
no solution
Step-by-step explanation:
y = -2x + 3
6x + 3y = -3
the substitution method means you plug one equation into the next, because the first equation gives us a solution for y we can go ahead and plug that into y of the second equation
6x + 3(-2x + 3) = -3
6x - 6x + 9 = -3
9 = -3
which is false meaning that there are no solutions and the lines don't touch at any point
Answer:
B
Step-by-step explanation:
Perimeter of the triangle ABC is 18.7 units.
Coordinate of the point A is (4, -1), B is (-1, 4) and C is (0, -3).
Length of the side AB =
AB =
AB = 7.07 units = 7.1 units ( rounded to the nearest 10th)
Length of the side BC =
BC =
BC =
BC = 7.07 units = 7.1 units ( rounded to the nearest 10th)
Length of the side CA =
CA =
CA =
CA = 4.47 units = 4.5 ( rounded to the nearest 10th)
Perimeter of the triangle ABC = sum of all three sides = (7.1 + 7.1 + 4.5) units = 18.7 units