1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Olenka [21]
3 years ago
9

The relationship between voltage, E, current, I, and resistance, Z, is given by the equation E = IZ. If a circuit has a current

I = 3 + 2i and a resistance Z = 2 – i, what is the voltage of the circuit? 4 – i
Mathematics
1 answer:
wlad13 [49]3 years ago
7 0
E=IZ=(3 + 2i)(<span>2 – i)=3*2-3i+2i*2-2i*i =6 - 3i+4i -2i²=6</span>-2i²- 3i+4i =6+2+i=8+i<span>

i²=-1

E=8+i
</span>
You might be interested in
What is the solution to this system of equations, and what does it mean to the contractor? The solution (0, 20) tells the contra
oksano4ka [1.4K]

The question is incomplete. Here is the complete question:

A contractor has two choices for billing a completed job.

· $500 flat rate, regardless of the number of hours worked

· $20 per hour worked

The graph shows the relationship between pay per hour and number of hours worked for both scenarios.

What is the solution to this system of equations, and what does it mean to the contractor?

A.The solution (0, 20) tells the contractor the minimum amount that can be charged.

B.The solution (0, 500) tells the contractor the maximum amount that can be charged.

C.The solution (25, 20) tells the contractor the number of hours on a job where the hourly rate is the same for both billing options.

D.The solution (20, 25) tells the contractor the number of hours on a job where the hourly rate is the same for both billing options.

Answer:

The graph is attached below.

C.The solution (25, 20) tells the contractor the number of hours on a job where the hourly rate is the same for both billing options.

Step-by-step explanation:

As per the graph, the x-axis represents the number of hours worked and the y-axis represents the rate in dollars per hour.

The hourly rate is given as $20.

The solution to the given lines drawn on the graph is the point of intersection of the two curves.

As we observe from the graph, the point of intersection of the two curves is at (25,20). The point tells the contractor that when the hourly rate is $20, then the number of hours worked will be 25.

So, when the hourly rate is same for both the billings, then the number of hours worked will be 25.

Hence, the correct option is (C).

3 0
2 years ago
Read 2 more answers
Covert 3.92 into a mixed number in simplest form?
12345 [234]
3.92

= 1.00 + 1.00 + 1.00 + 0.92

= 100/100 + 100/100 + 100/100 + 92/100

= 300/100 + 92/100

= 392/100

-------------------------------------------------------

392/100 = 196/50 = 98/25
3 0
3 years ago
Read 2 more answers
Classify this relation as direct, inverse, or neither:
Charra [1.4K]

Answer:

b option im not sure but

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Find a compact form for generating functions of the sequence 1, 8,27,... , k^3
pantera1 [17]

This sequence has generating function

F(x)=\displaystyle\sum_{k\ge0}k^3x^k

(if we include k=0 for a moment)

Recall that for |x|, we have

\displaystyle\frac1{1-x}=\sum_{k\ge0}x^k

Take the derivative to get

\displaystyle\frac1{(1-x)^2}=\sum_{k\ge0}kx^{k-1}=\frac1x\sum_{k\ge0}kx^k

\implies\dfrac x{(1-x)^2}=\displaystyle\sum_{k\ge0}kx^k

Take the derivative again:

\displaystyle\frac{(1-x)^2+2x(1-x)}{(1-x)^4}=\sum_{k\ge0}k^2x^{k-1}=\frac1x\sum_{k\ge0}k^2x^k

\implies\displaystyle\frac{x+x^2}{(1-x)^3}=\sum_{k\ge0}k^2x^k

Take the derivative one more time:

\displaystyle\frac{(1+2x)(1-x)^3+3(x+x^2)(1-x)^2}{(1-x)^6}=\sum_{k\ge0}k^3x^{k-1}=\frac1x\sum_{k\ge0}k^3x^k

\implies\displaystyle\frac{x+4x^3+x^3}{(1-x)^4}=\sum_{k\ge0}k^3x^k

so we have

\boxed{F(x)=\dfrac{x+4x^3+x^3}{(1-x)^4}}

5 0
3 years ago
You can use a calculator
kolezko [41]

Answer:

238, 000

Step-by-step explanation:

hope this helps </3

3 0
3 years ago
Other questions:
  • Please help 1-10 I will give thanks and brainiest
    11·2 answers
  • Find the mean,median, and mode of the data. Choose the measure that best represents the data. Explain the reasoning.
    8·1 answer
  • solve the following: all fractions should be reduced to lowest terms and mixed numbers. -1 1/4 x (-2/5)=
    9·2 answers
  • Nick bought a bag of jell beans. He ate 15 jelly beans and then gave one-third of the remaining jelly beans to his brother. If h
    11·1 answer
  • At Brighton Middle School, Mr. Yule asked 50 randomly selected students from each grade level about their favorite subject, and
    6·2 answers
  • Help on #6 need to know now
    7·1 answer
  • You spin a spinner that is equally divided into 7 parts. 2 parts white, 2 parts are speckled, and 3 parts are blue.
    5·1 answer
  • Value of x!!!! THANKS LAST ONE!!!
    8·1 answer
  • Game Stop has 48 video games to sell. If it sells 1/8 of its games each day. how many days will it take to sell all of the games
    12·2 answers
  • You are interested in estimating the the mean age of the citizens living in your community. In order to do this, you plan on con
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!