You deposit $25,000 into a bank that pays % 4 annual interest compounded monthly.
1 answer:
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Given:
Perimeter of a square =
To find:
The side length of the square.
Solution:
We know that, the perimeter of the square is 4 times of its side length.
Where, a is the side length.
Perimeter of a square =
Now,
Divide both sides by 4.
Therefore, the side length of the square is units.
We are asked to write the following fraction of complex numbers in standard form: 
.
Whenever we are dividing by a complex number by another complex number a+bi, to write the result in standard form, we multiply the expressions in the numerator and denominator by the conjugate of a+bi, that is a-bi:
in the numerator we distribute (3-i) to 1 and -5i, in the denominator we use the difference of squares formula
, and 
:
Answer: D
Whenever we are dividing by a complex number by another complex number a+bi, to write the result in standard form, we multiply the expressions in the numerator and denominator by the conjugate of a+bi, that is a-bi:
in the numerator we distribute (3-i) to 1 and -5i, in the denominator we use the difference of squares formula
Answer: D