Complex numbers are divided into two parts; real and imaginary parts. The value of Z3 is
Given that:
Since O is the origin, then:
This means that:
So, we have:
Collect like terms
Hence, complex number Z3 is
Read more about complex numbers at:
30p + 25r + 20c = 30. 6 + 25.4 + 20.9
2 answers:
You might be interested in
Answer:
A
Step-by-step explanation:
They are basically wanting the value of x.
These are 2 secant lines drawn. Secant Line is a line that intersects the circle at 2 points.
To solve this, we have to use secant-secant theorem.
Secant-Secant Power Theorem tells us that if 2 secant lines are drawn from external point (here, E) to a circle, then, product of measure of one secant's external part and total secant is equal to other secants external part and whole secant.
In algebra, that is:
Let's multiply and find the value of x:
Hence, the correct answer choice is A
Answer:
(1) The total cost under Plan A is <u>$92</u> and the total cost under Plan B is <u>$515</u>.
(2) The total cost under Plan A is <u>$92</u> and the total cost under Plan B is <u>$1,030</u>.
Step-by-step explanation:
<u><em>The question is incomplete, so the complete question is below:</em></u>
Now, to find (1) total cost for each of the two plans. (2) Total cost under each of the two plans, if sister doubles her monthly usage to 3,500 minutes and sends 3,300 texts.
<h3>(1) </h3>As, the Plan A is for unlimited talk and text
Cost of the Plan A = $92.
<u><em>Now, to find the cost under Plan B:</em></u>
According to question:
Rate of call per minute is $0.20 and per text is $0.10.
Calls she uses currently is 1,750 minutes and text 1,650.
<u><em>So, to get the cost of Plan B:</em></u>
Thus, Plan B costs $515.
<h3>(2)</h3><u><em>Now, to get the total cost as, sister doubles her monthly usage to 3,500 minutes and sends 3,300 texts.</em></u>
As, the Plan A is same in both cases and is for unlimited text and calls.
So, cost of Plan A = $92.
As, the monthly usage is double.
Calls in minutes are 3,500.
Texts are 3,300.
<u><em>Now, to get the total cost under Plan B:</em></u>
Hence, the cost of Plan B = $1,030.
Therefore, (1) The total cost under Plan A is $92 and the total cost under Plan B is $515.
(2) The total cost under Plan A is $92 and the total cost under Plan B is $1,030.