Answer: subtraction property equality.
Step-by-step explanation:
The answer is: 
The explanation is shown below:
1. To solve this problem you must apply the following proccedure:
2. You have the logarithm expression:
3. First, you must apply the following property:
4. Therefore, you have:
5. By applying logarithm on both sides, you have:
6. By applying the property 
:
7. Solve for x:
Answer:
the answer is 2 + i.
Step-by-step explanation:
Let the square root of 3 + 4i be x + iy.
So (x + iy) (x +iy) = 3 +4i
=> x^2 + xyi + xyi + i^2*y^2 = 3 + 4i
=> x^2 – y^2 + 2xyi = 3 + 4i
Equate the real and complex terms
=> x^2 - y^2 = 3 and 2xy = 4
2xy = 4
=> xy = 2
=> x = 2/y
Substitute in
=> x^2 - y^2 = 3
=> 4/y^2 - y^2 = 3
=> 4 – y^4 = 3y^2
=> y^4 + 3y^2 – 4 = 0
=> y^4 + 4y^2 – y^2 – 4 =0
=> y^2(y^2 + 4) – 1(y^2 + 4) =0
=> (y^2 – 1) (y^2 + 4) =0
Therefore y^2 = 1, we ignore y^2 = -4 as it gives complex values of y.
Therefore y = 1 and x = 2/1 = 2
The required square root of 3 + 4i is 2 + i.
Answer:
-50 - 15y
Step-by-step explanation:
-5 ( 10 + 3y )
First distribute the -5 by multiplying it by 10 and 3y
(-5 x 10) + (-5 x 3y)
Than simplify
(-50) + (-15y)
Adding a negative is like subtracting a positive so you can turn (-50 + -15y) into (-50 - 15y)
Than you have your answer
-50 - 15y
Ten times 5280 is clearly more than fifty thousand. Since there are more than ten inches in one foot, we have even more than ten times 5289 inches in a mile, so there are many more than 50000 inches in one mile.
