Answer:

Step-by-step explanation:
The imaginary unit is
.
Now 63 itself is not a perfect square but 63 does contain a factor that is.
63=9×7 and 9 is a perfect square.
So
.

Answer: 0.000527
Step-by-step explanation:
Given:
in standard form.
The standard form are also known as scientific notation.
Scientific notation is a way to write a very large or a very small number in the product of a decimal form of number [generally between 1 and 10] and powers of ten.
Since the power of 10 is negative, then it must be smaller than 1.
We can write the given number in decimal form as

8 tenth because 4 over 5 is also 8 over 10
Answer:
4.25
Step-by-step explanation:
To find the scale factor divide the image coordinates by the original coordinates, that is
scale factor =
=
= 4.25
The real question is, why weren't you paying attention? Brainly won't be here on your exams. Next time pay attention. For now, Guess.
Because lack of paying attention has consequences.
Hope you learn a valuable lesson here.
Good day!