Answers
Answer:
first option
Step-by-step explanation:
Multiplying a complex number by its conjugate gives a real number and thus removes imaginary numbers in the denominator.
If z = a + bi then its conjugate is a - bi and their product
(a + bi)(a - bi) → where a and b are real
= a² + b² ← a real number
Related Questions
Which equations are true for x = -2 and x = 2? Select two options
x2 - 4 = 0
x2 = 4
3x2 + 12 = 0
4x2 = 16
O2(x - 2)2 = 0
Answers
Answer:
A, D
Step-by-step explanation:
EDGE 2021
Jerome hiked three-fourths of a mile in two-thirds of an hour. What was his hiking speed in miles per hour?
Answers
The value of his hiking speed in miles per hour will be;
⇒ Speed = 9/16 miles per hour
What is an expression?
Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
Jerome hiked 3/4 of a mile in 2/3 of an hour.
Now,
Since, Jerome hiked 3/4 of a mile in 2/3 of an hour.
Hence, We can formulate;
⇒ Speed = Distance / Time
⇒ Speed = 3/4 / 2/3
⇒ Speed = 3×3 / 4×4
⇒ Speed = 9/16 miles per hour
Thus, The value of his hiking speed in miles per hour will be;
⇒ Speed = 9/16 miles per hour
Learn more about the mathematical expression visit:
brainly.com/question/1859113
#SPJ2
Hehe sooo I kinda need help bakugo won't help me..
Answers
Answer:
-8/3 or -2 2/3
Step-by-step explanation:
You would change 4 to 4/1 and then set up the equation
4/1 x -2/3
4x-2=-8
1x3=3
you would then get -8/3 which is then turned into -2 2/3
(sorry i love multiplying and dividing fractions lol)
Answer:
SHI.TTY HAIR YOU DONT NEED HELP YOUR SMARTER THAN DENKIII
Step-by-step explanation:
*
3. Solve for x
Please need help ASAP
Answers
Amy and Stephanie were playing a number game. Amy picked a number and told Stephanie that if she added 9 to the number and multiplied the sum by 2, it would equal 8. Which equation could Stephanie use to find the number, x?
Answers
Answer:
4 (x + 7) = 8
Step-by-step explanation:
4 (x + 7) = 8 Because you add 7 to Amy's number then multiplied by 4 which equals 8
She charges an initial fee of $10 for each
rental and an hourly rate of $4. Which of
the equations below shows the amount
y that Rashida charges for a bike rental
that lasts x hours?
A. y=10+4x
B. y=10+4x
C. y=4+10x
D.y=4+10x
Answers
Answer:
A
Step-by-step explanation:
Because the 10 is bigger then the 4 so when you do the math (y) will equal the answer of A which its 14
Answer:
The answer is y=10+4x
Step-by-step explanation:
so because x is represented by hours you dont know how many hours someone rents the bike so x and ten dollars is a set amount so it would stand alone.
After changing its format, a radio station lost 34% of its listeners. If there were an estimated 83.000 listeners originally, how many listeners does the radio
station have now?
Answers
Answer: 54
Step-by-step explanation: 1.00-34 is 0.66 and multiply that by 83 gives you 54.78 but you can't have 78 of a person so you round down
I need help with this question?
Directions:Write the equation of each line. Explain what the slope and y-intercept represents in the context of each graph.
Answers
we are gone find 2 points on the graph so i would use (10,30) (20,60)
m=y2-y1/x2-x1
60-30/20-10
30/10
m=3
slope = 3
equation is y=3x
Please help me with this. Will give brainliest to the best answer. Image attached
Answers
Answer:
1: x= 10
Step-by-step explanation:
I only know the first one, sorry, but if its any help then for #2: x= 8
Audrey charges a flat fee of $4 for each delivery plus a certain amount, in dollars per mile, for each mile she drives. For a distance of 30 miles, Curtis and Audrey charge the same amount. How much does Audrey charge, in dollars per mile? Show your work
Answers
20=5x-13=6x what is x equaled to
HELP ASAP
Answers
20=5x-13+6x
We move all terms to the left:
20-(5x-13+6x)=0
We add all the numbers together, and all the variables
-(11x-13)+20=0
We get rid of parentheses
-11x+13+20=0
We add all the numbers together, and all the variables
-11x+33=0
We move all terms containing x to the left, all other terms to the right
-11x=-33
x=-33/-11
x= 3
Answer:
3
Step-by-step explanation:
First, write the equation.
20=5x-13+6x Combine like terms on the right side.
20=11x-13 Add 13 on both sides.
+13 +13
33=11x Divide both sides by 11.
/11 /11
3=x
Hope this helps!! Have a wonderful day :3
Ruben bought 666 comic books for \$21$21dollar sign, 21. Each comic book was the same price.
what was the cost for 1 comic book
Answers
9514 1404 393
Answer:
$3.50
Step-by-step explanation:
If c represents the cost of one comic book, the transaction can be written as the equation ...
6c = $21
Dividing by 6, we get ...
c = $21/6 = $3.50
The cost for 1 comic book was $3.50.
_____
You know that the total cost of a transaction is the sum of the costs of each part. When all the parts have the same value, we can multiply the cost of one part by the number of parts.
Answer:
3.50
Step-by-step explanation:
Jasmine has just started high school she finds that she is struggling to manage her time and complete all of her assignments how could she use communication to help her learn to manage her time
Answers
3.305 + 1.7 what's the sum? Also more questions are coming just doing a test
Answers
3.305
+1.7
5.005
Line up the decimal points and add like you usually would add.
5.005 is the answer.
Need answer I don’t have much time
Answers
Hope this helped :)
Mr. West estimated a mass to be 265g, but upon carefully measuring it, found the actual mass to be 240g. What was the percent error?
Answers
Answer:
The answer is 10.42 %Step-by-step explanation:
The percentage error of a certain measurement can be found by using the formula
[tex]P(\%) = \frac{error}{actual \: \: number} \times 100\% \\ [/tex]
From the question
actual mass = 240 g
error = 265 - 240 = 25
So we have
[tex]p(\%) = \frac{25}{240} \times 100 \\ = 10.41666666...[/tex]
We have the final answer as
10.42 %Hope this helps you
What number does the calculator display represent?
Answers
Answer:
C
Step-by-step explanation:
I jus need help on the ounces
Answers
Answer:
4 pounds = 64 ounces and 5 pounds = 80 ounces
Step-by-step explanation:
One pound is 16 ounces
So pound to ounces you multiply by 16
Thus:
4 * 16 = 64
5 * 16= 80
HOPE IT HELPED
Answer:
64, 80
Step-by-step explanation:
you would just multiply by 16 since 16oz = 1lb
if the midpoint is located at (6,-2) and one endpoint is at (1,7), what is the coordinates of the other endpoint?
Answers
Answer:
(11, -11)
Step-by-step explanation:
The coordinates of the midpoint are the average of the endpoint coordinates.
6 = (x + 1) / 2
x = 11
-2 = (y + 7) / 2
y = -11
is this a function if is not tell why
Answers
Answer:
yes
Step-by-step explanation: all inputs go to one output but they do not go over more than once that is why
what is 2⁵ evaluation
Answers
on october 14, bob has $20
on october 20, bob has $80
if bob continues to save money at this rate, how much money will he have on october 23?
Answers
Simplify.
2(m + 11)
2m + 11
2m + 22
24m
22m
Answers
Answer:
b 2m + 22
Step-by-step explanation:
m times 2 is 2m and 11 times 2 is 22
Answer:
2m + 22
Step-by-step explanation:
Step 1: Write expression
2(m + 11)
Step 2: Distribute (Distributive Property)
2m + 22
We simply distribute 2 to each term in the parenthesis.
The 9th grade class at Georgia high School wanted to go on a field trip to a soda factory. The trip will cost $100. The students decided to write a class newspaper and sell it to the kids at their school. Each of the 20 students will be given a 16-inch square for his/her article in the newspaper. How many pages long will the newspaper be if they used paper that was 8 ½ x 11 inches?
Answers
Answer:
2 Pages Long
Step-by-step explanation:
It’s 3828287372 soooo it’s not the answer it’s tho 188472828478282747
help, please !!!!!!!!
Answers
Answer:
The answer is 24
Step-by-step explanation:
7^2 + b^2 = 25^2
49 + b^2 = 625
b^2 = 576
b = 24
how do I do this homework???
Answers
Step-by-step explanation:
a)
135
/ \
3. 45
/ \
3. 15
/ \
3. 5
b)
250
/ \
10 .25
/\ / \
2 5. 5 5
c)
351
/ \
3. 117
/ \
3. 39
/ \
3. 13
Hope it helps :)
Solve the equation. Show all Work. (4 points)
73 + 3(-x + 6)=42
1 pt. for correct answer. 3 point for all correct work shown. Remember to make sure
you show what operation you perform to both sides of the equation for every step.
Answers
Answer:
6
Step-by-step explanation:
7x + 3(-x + 6) = 42
use distributive property
7x + -3x + 18 = 42
positive + negative = negative
7x - 3x + 18 = 42
combine like terms
4x + 18 = 42
subtract 18 from both sides
4x + 18 - 18 = 42 - 18
18 is canceled out on the left side
4x + 0 = 24
4x = 24
divide both sides by 4
4x ÷ 4 = 24 ÷ 4
1x = 6
x = 6
Show an example of a multi-step equation with an answer of 0.
Answers
Step-by-step explanation:
50-10 x 2-40-30 x 6-60=0
John has a square room with the area of 121 what is the side length of the room
Answers
Answer: 11
Step-by-step explanation:
11x11=121
What is the sum of (3/8x-2) +(1/8x-5)
Answers
Answer:
1/2x-7
Step-by-step explanation:
Add 3/8x and 1/8x to get 4/8x which is the same as 1/2x
Then add the integers: -2 + -5 = -7