An imaginary number " i " is the squared root of -1, so whenever you square i it's like squaring a squared root. The squared root would cancel and you would be left with just the number under it, that is, the -1.
i ^ 2 = -1
Answer:
109.0125 dollars, rounded is 109.01$
Step-by-step explanation:
Step-by-step explanation:
√a is defined only when a >= 0.
Therefore for √4x * √(x + 2) to be defined, both 4x and x + 2 must be non-negative.
When 4x >= 0, x >= 0.
When x + 2 >= 0, x >= -2.
x >= 0 and x >= -2, therefore we have x >= 0. (D)
Don't know if it's right, but do let me know! use percentage to visualise your workings. :)
Answer:
1,236
Step-by-step explanation:
The absolute value defines as being the positive of the number.
Absolute value of 47 - 47
Absolute value of (-56) - 56
47 + 56 = 103
103 * 12 = 1,236
Hope this helps!