Which of these represents the conjugate of the impedance of a circuit written as 7 – i ohms?

A
–7 – i ohms

B
–7 + i ohms

C
–7i ohms

D
7 + i ohms

Answers

Answer 1

For the expression 7 - i ohms, the conjugate will be 7 + i ohms (the sign was changed from negative to positive)

The impedance of the circuit is written in form of a complex number.

The standard representation of a complex number is expressed as a + ib where:

a is the real part

ib is the imaginary part

The conjugate of the complex number a + ib will be a - ib. Note that the signs of the expression were changed from addition to subtraction.

Similarly for the expression 7 - i ohms, the conjugate will be 7 + iohms (the sign was chaged from negative to positive)

Learn more here: https://brainly.com/question/18392150


Related Questions



which the following is a solution to the inequality below

5> x

Answers

Answer:

x < 5

Step-by-step explanation:

1) Swap sides

5 > x

Swamp sides:

x < 5

2) Solution on coordinate plane

Solution: x < 5

Interval Notation: (-∞,5)

Isis bought 5 sunshades at $10.30 each and 3 beach towels at $8.99 and a hat that cost $29.99. The sales tax is 6.7%. What is the cost of the purchase?

Answers

Answer:

$115.73

Step-by-step explanation:

10.30×5=51.50

8.99×3=26.97

51.50+26.97+29.99=108.46

108.46+6.7%

108.46+7.27=115.73

I need help asap please

Answers

Answer:

A= 90 , b= 12 , c=60,

Step-by-step explanation:

cuz im smart like that

May I please receive help?

Answers

Answer:

Step-by-step explanation:

mark me brainles plzzzzz

HELP PLZ IT DUE TMR

Answers

Answer: (2,1) (0,-3)

(-5,2) (0,-1) (5,-4)

(0,-4) (2,-2)

(-1,0)

(-3,1) (-2,-4)

(0,3)

Step-by-step explanation:

Help me please! Two parallel lines are cut by a transversal as shown below

Answers

Answer

Step-by-step explanation:

So since m<6 = 62, we can tell that m<2 is also 62. since the angles add up to 180, 180-62=118. so m<1 = 118. m<4 = 62.

Yes it is because I just did it

find the sum of the first seven terms -3,3,-3,3.
Show your work.

Answers

-3 as there are 3(-3+3) -3 meaning 3(0) -3 so therefore just -3

Will someone please help me ASAP

Answers

Answer:

y- [2] = 4(x - [3])

Answer:

y-2 = 4(x-3)

Step-by-step explanation:

The point slope equation is

y - y1 = m(x-x1) where m is the slope and (x1,y1)

y-2 = 4(x-3)

Which equation represents the
sentence, "one minus p to the
fourth power equals zero"?
OA) 1-4p=0)
OB) 4p-1=0
OC) 1-p4=0)
OD p4-1=0

Answers

Answer:

to make button connected. I am

Answer:

C

Step-by-step explanation:

This equation exactly represents the question. It has the 1- p to the 4th which will =0.

what is [tex]−3.64⋅|5.3|−1.5^3[/tex]

Answers

Answer:

- 22.667

Step-by-step explanation:

1.5^3 = 1.5 x 1.5 x 1.5 = 3.375

- 3.64 ⋅ | 5.3 | - 1.5^3

= ( - 3.64 ⋅ | 5.3 | ) - 1.5^3

= ( - 3.64 ⋅ 5.3 ) - 1.5^3

= ( - 3.64 x 5.3 ) - 1.5^3

= - 19.292 - 3.375

= - 22.667

Jasmine surveyed the people at a local playground. She found that 33 out of 55 people brought water bottles. On Wednesday, Jasmine returns to the park and finds that 1212 people brought water bottles. About how many people do you expect were at the park on Wednesday? Enter the number of people at the park on Wednesday.

Answers

Answer:

2,020 people were at the park.

Step-by-step explanation:

33/55 = 1212/x

(1212 * 55)/33 = 2,020

a.8.4 t=_______kg
b. 10,000m=_______km c. 231g=______kg
d. 6000kg=______
e. .7kg=______t

f.125 g=_______kg g. 3.9t=______kg h.2000g=_____kg i. .5kg=______t
j. 3600g=_____kg

Answers

ANS

A) 8400 kg

B) 10 km

C) 0.231 kg

D) 6000000 g

E) 0.007 t

F) 0.00125 kg

G) 3900 kg

H) 2 kg

I) 5000 g

J) 3.6 kg

Thank You !!!

solves the equation
8x-2 =3(x-9)

Answers

Answer) x = -5
8x-2=3(x-9)

Answer:

-5.2

Step-by-step explanation:

A stack of 30 science flashcards includes a review card for each of the
following: 10 insects, 8 trees, 8 flowers, and 4 birds.
What is the probability of randomly selecting an insect?

Answers

unlikely but possible. there’s more trees, flowers and birds cards altogether rather than the 10 insect cards
20:10 that doesn’t give it a good chance of getting picked.

The probability of randomly selecting an insect is 2/15.

What is probability?

It is a measure of happening or non happening of the outcomes of a random experiment.

Formula for probability

P(E) = number of favorable outcomes/Total number of outcomes

Where, P(E) is the probability of any event.

Let E be an event of selecting an insect.

According to the given question

We have

Total number of insects = 10

Total number of trees = 8

Total number of flowers = 8

Total number of birds = 4

Now, the total number of outcomes = 10 + 8 + 8 + 4 = 30

Total number of favorable outcomes = 4

Therefore,

The probability of selecting an insect = [tex]\frac{4}{30} =\frac{2}{15}[/tex]

Learn more about probability here:

https://brainly.com/question/11234923

#SPJ2

Perform the indicated operation. Show all necessary work. a -2-(-9) b -2 -9 c -2- (-9)-(-2

please help i need to finish a test

Answers

Answer:

a=7 b=11 c=9

Step-by-step explanation:

-2-(9)      -2-(9) = -2+9=7 b -2-9=-11 c -2-(-9)-(-2) = -2+9+2=9

Answer:

Is the other answer correct?

Step-by-step explanation:

Olivia deposits $6,952 in a savings account paying 3.72% interest. To the nearest dollar, how much money does Olivia have in total after sixteen years?a.$4,138b.$8,568c.$11,090d.$29,901

Answers

Answer:

11090

Step-by-step explanation:

6952x.0372=258.61

258.61x16=4137.83

4137.83+6952=11090

Answer:

C on EDGE 2021

Step-by-step explanation:

hello if yall can help me please...

Answers

B. 3

at 4 weeks it is at 12 cm. 4x3 is 12

Answer:

A. 2

Step-by-step explanation:

4 to 6 to 8 to 10 to 12

Remember what we know about vertical angles and solve for x.
Then tell me the measure of Angle A.
(show your work)

Answers

Answer:

m<a is 32º

Step-by-step explanation:

4x-8=2x+12

   +8       +8

4x=2x+20

-2x     -2x

2x=20

÷2

x=10

4x-8

4(10)-8

40-8

32

In a recent year 16.1% of all registered doctors were female. If there were 48400 female registered doctors that year, what was the total number of registered doctors?

Answers

Answer:

300,621

Step-by-step explanation:

Which ordered pairs are solutions to the inequality 2x +y > -4? Select each correct answer. (0, 1) (-3,0) (4 – 12) (-1, -1) (5,- 12 )​

Answers

Answer:

(5,-12)

(-3,0)

(-1,-1)

Step-by-step explanation:

For (4, −12): 2(4) - 12 = 8 - 12 = -4                  [false]

For (−3, 0): 2(-3) = -6 < -4                                [false]

For (5, −12): 2(5) - 12 = 10 - 12 = -2 > -4         [true]

For (0, 1): 2(0) + 1 = 1 > -4                              [true]

For (−1, −1): 2(-1) - 1 = -2 - 1 = -3 > -4            [true]

Therefore, (5, -12), (0, 1) and (-1, -1) satisfies the inequality 2x + y > -4

For (7, 12): 12 - 2(7) = 12 - 14 = -2 > -3                   [false]

For (0, −2): -2 - 2(0) = -2 > -3                                   [false]

For (5, −3): -3 - 2(5) = -3 - 10 = -13 < -3                   [true]

For (−6, −3): -3 - 2(-6) = -3 + 12 = 9 > -3                  [false]

For (1, −1): -1 - 2(1) = -1 - 2 = -3                              [true]

Therefore, (5, -3) and (1, -1) satisfy the inequality y - 2x ≤ -3

The situation is represented by 2.25x + 2.65y ≥ 8

3x - 5y = 4
-2x + 6y = 18

Answers

Answer:

From 1st eqn .,

3x=4+5y

X=4+5y/3

From 2nd eqn ..,

-2x+6y=18

-2(4+5y/3)+6y=18

-8+10y/3 +6y=18

-8+10y+18y/3=18

-8+28y/3=18

-8+28y=54

28y=54+8

y=62/28

y=31/14

Therefore the value of y is 31/14

Again,

Putting the value of y in ..

X=4+5y/3

=(4+5*31/14)/3

=(211/14)/3

=211/42

Step-by-step explanation:

So the value of X and y is 31/14 &211/42 respectively.

Plz mark me brainest .

Answer:

x=14:25;convert to whole number 14:y=7:75; convert to whole number is 7

Step-by-step explanation:

using determiner method {x=3and-2;y=5and6}=4and18; solution cross multiple 3×6-5×6=general determiner is 28; to solve for x exchange for the number for x with the number outside which is 4;18

please help !! find the area and perimeter. I KNOW HOW TO DO IT BUT I JUST DONT HAVE THE TIME RN!!

Answers

Answer:

Step-by-step explanation:

9.

Area = 15 × 5

Area = 75

perimeter = 15 + 6 + 15 + 6 = 42

10.

Area = (10 × 15) ÷ 2 = 75

perimeter = 18 + 10 + 15 = 43

11.

Area = (25 × 10) ÷ 2 = 125

perimeter = 31.6 + 25 + 11.2 = 67.8

please give me a brainliest answer

50 pts
A cube has a volume of 73 cubic centimeters. What is its surface area in
square centimeters?
Just type the number of the answer.

Answers

The cylinders surface area is 104.8 cm

draw an ordered stem and leaf diagram to show infomation 245

Answers

Answer:

if asked to find stem leaf 245 scale key then 2 | 45 is what we could show to one side of the diagram.

We then use organise all numbers in numerical order lowest to highest in a horizontal list to copy.

Then draw a vertical line for your stem hopefully it is on lined paper.

single digits 1-9 go right side.

tenths get split keeping digits rights side

hundred units get split keeping tenth and single digits right side

and so forth so that nly the first number of larger numbers is on the left, just first digit. Being the first digit of numbers higher than 9.

Larger numbers that have 3 digits are more than double digits I've called 100th units

Numbers lower than 9 will be on rights side on the first line.

1-9  =  0 | 1  2 3 4 5 6 7 8 9

10-19   1 | 0 1 2 3 4 5 6 7 8 9

20-29  2| 0 1 2 3 4 5 6 7 8 9

100-110 = 1 | 00 01 02 03 etc.. becomes our first 100th line

We use thsi by counting how many numbers we have before drawing and by writing the scale key ie) 1|1 if 11 is shown etc. sometimes just called key.

Step-by-step explanation:

The pyramid of Khafre measured 143.5 meters high. The pyramid of Menkaure measured 65.5 meters high. Write and solve an equation to find d, the difference in the heights of these two pyramid.

Answers

Answer:

See below

Step-by-step explanation:

The pyramid of Khafre measured 143.5 meters high.The pyramid of Menkaure measured 65.5 meters high.

The difference in the heights of the two pyramids:

d = 143.5 m - 65.5 md = 78 m

Lets see

d is difference between the heights

143.565.5

So

d=143.5-65.5d=78m

$300, 5%, 2 years

explain

Answers

ANSWER:16,000

EXPLANATION:

300+5%+2YEARS=16,000

HOPE IT HELPS YOU

CAN YOU BRAINLEST ME

Answer:

16,000

Step-by-step explanation:

trust me it's right

FOR BRAINILY
Answer fast please

Answers

Answer:

37 degrees

Step-by-step explanation:

A triangle is 180 degrees total, so if you find what other number with 106 degrees equals 180 degrees you would get 37 degrees.

i think its 37 degrees sorry if incorrect

1. Determine the lowest common multiple of 4, 9 and 12
A. 30
B. 36
C. 48
D. 54

2. Simplify 80g : 16kg
A. 4 : 5
B. 3 : 4
C. 2 : 7
D. 1 : 20

3. How many square-shaped tiles with sides of y cm that are required to cover 15y × 4y floor?
A. 60
B. 64
C. 72
D. 86

4. Puan Anis bought 8kg of beef which cost RMx per kilogram. She paid with 2 pieces of RM50 note and received a balance of RM4. Find the value of x
A. 12
B. 14
C. 16
D. 18

5. Find the circumference of a circle with radius of 21 cm
A. 66
B. 44
C. 63
D. 132

6. Anita has RMb. She spent RM(2a + 1) per day for a week. Given the balance of her money is RM45, find a formula for b
A. 2a + 46
B. 14a - 38
C. 14a + 45
D. 14a + 52

7. Given 9x²/y² - 3x = 5w, express y in terms of w and x
A. y = x/5w+x
B. y = 3x/5w+3x
C. y = 3x²/5w+3x
D. y = 3x/5w+x

I NEED ANSWERS FOR THESE QUESTIONS TQ :)​

Answers

Answer:

a,b,d,d,c,a,a

Step-by-step explanation:

A student performed the following steps to find the solution to the equation
x2 - 2x - 8 = 0. Where did the student go wrong?
Step 1. Factor the polynomial into (x-4) and (x - 2)
Step 2. X-4 = 0 and x - 2 = 0
Step 3. x = 4 and x = 2
A. The student did not make any mistakes, the solution is correct
B. in Step 2
C. in Step 1
D. in Step 3


Answers

Answer:

step 1, c

Step-by-step explanation:

he was wrong in step 1.

when factoring out (x-4) and (x-2), you have to distribute x*x, x*-2, -4*x, and -4*-2

if you do it you get x^2 - 2x -4x + 8

the correct way to factor will be (x-4)(x+2)

when you factor out you will get the original equation you started with.

Pleasee help me this stuff hard

Answers

Answer:

3x-8=2x+8

1x-8=8

1x=16

x=16

your answer is x=16.

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