Answers
Answer:
34Step-by-step explanation:
Given
z = -3 + 5iConjugate of z is:
z' = -3 - 5iProduct zz' is:
zz' = (-3 + 5i)(-3 - 5i) = (-3)² - (5i)² = 9 - 25(-1) = 9 + 25 = 34If ,
[tex]\bold{z=-3+5i }[/tex]
so,conjugate of z
[tex]\overline{ z }[/tex]=[tex]\bold{-3-5i }[/tex]
Because, in argand plane [tex]\overline{ z }[/tex] is the reflection of z in x-axis.
so,
According to the question,
z[tex]\overline{z}[/tex]=(-3+5i)(-3-5i)
[tex]\bold{(-3)^2-(5i)^2 }[/tex]
[tex]\bold{9-25(-1) }[/tex]
[tex]\bold{ 9+25 }[/tex]
[tex]\bold{ 34 }[/tex]
Related Questions
Зr — Зу = — 18
9x — 6y= — 48
Please help!
Answers
Answer:
The answer should be (-4,2)
Step-by-step explanation:
Three times a day, Dylan mixes 2 ounces of protein powder into a shake. How many days can he make all three shakes from his 5-pound container of protein powder? Remember, there are 16 ounces in a pound. Enter your answer in the box.
Answers
Answer:
13 days
Step-by-step explanation:
To calculate this we first need to find the total number of ounces in the container. We do this by multiplying the total number of pounds in the container by 16oz
5 * 16oz = 80oz
Since Dylan is making three 2oz shakes per day that would mean he is using a total of 6oz (2oz*3) per day. Therefore, in order to find out how many days the container will last we simply divide the total amount of protein powder in the container by the amount he uses every day.
80oz / 6oz = 13.33 days
The container will last 13.33 days but since we cannot count a percentage of a day, then we need to round down to the day in which he will no longer be able to make the three shakes which are 13 days.
Answer:
13
Step-by-step explanation:
no
I need help with this math question pleaseeeee!!
Answers
You and a friend go to the store and purchase 3 candy bars that cost $0.85 each and 2
sodas that cost $1.89 each. You are going to split the cost. You have $5. How much change
will you receive?
Answers
Divide 6.33 by 2 equals $3.165
5 minus 3.165 = $1.835
Which $1.835 is your change you receive
-5 + 3d + 6 - 4d. in simplest form
Answers
Answer:
1-1d
Step-by-step explanation:
i think that is the answer
Answer:
-1-d
Step-by-step explanation:
25−2(5+4x)
15+8x
35+8x
HURRY I HAVE TO DO THIS TEST BEFORE 3 AND ITS 50 QUESTIONS
15-8x
7x
Answers
Step-by-step explanation:
25 - 2(5 + 4x)
= 25 - 10 - 8x (Distributive Property)
= 15 - 8x.
You have been working with irregular figures. How is estimating area on a grid different from estimating perimeter on a grid? how do you explain?
Answers
Answer:
When estimating area, count the squares that cover the shape. When estimating perimeter, count the unit lengths that are around the shape.
Step-by-step explanation:
your welcome
Answer:
When estimating area, count the squares that cover the shape. When estimating perimeter, count the unit lengths that are around the shape.
Step-by-step explanation:
Credit to the guy above.
Identify the rational exponent expression for V10°.
Answers
Answer:
The square root of 16 is rational.
Step-by-step explanation:
Answer:
Step-by-step explanation:
V10,000 20.5121/3 21. 41/2. 22. 11/3. 23.
what is 7-2x+3+5x+4x2
Answers
Answer:
7x+14 I think is correct. it's just combining like terms
Please Help Quick ASAP Hurry
Find the constant of variation for the relationship shown in the following table:
x 1 2 3 4
y 4 8 12 16
A. 1
B. 2
C. 3
D. 4
Answers
Answer:
vfca
Step-by-step explanation:
vaddavavthui sn fa
true or false? the domain of every rational function is set of all real numbers
why?
Answers
♡Answer:♡
Its false, why? bc the domain of every rational function is need not be the set of real numbers
♡Step-by-step explanation:♡
♡ ∩_∩
（„• ֊ •„)♡
┏━∪∪━━━━┓
♡ good luck 。 ♡
┗━━━━━━━┛
The domain values of a rational function are not only restricted to the only set of all real numbers making the given statement false
The domain of a function is the input values of the function for which it exists.
Rational functions are function that can be written as a ratio of two functions. For example given the function f(x) = 2/x-3
The domain values are the input values x. The values of x can be any values either real numbers, integers, or even natural numbers.
This means that the domain values of a rational function are not only restricted to the only set of all real numbers making the given statement false
Learn more here: https://brainly.com/question/18486099
Part C: What is the value of z?
At a store closing, a universal discount rate
is applied to all items. The table shows the
price for three items.
O
A. $19.50
Total Price
O
B. $1.95
Discount
Original
Price
Price
(including
sales tax)
OC. $34.45
$22.50
$13.50
$14.31
O
D. $20.67
$16.20
$27.00
$32.50
у
Z
Answers
Answer:
Step-by-step explanation: I think it's D
Four hundred tulips grow in the tulip field. That's 80 percent of all the tulips in the park. How many tulips are in the park?
Answers
Answer: 500
Step-by-step explanation: Good luck! :D
She writes the expression (0.2) (14). Which change in Mikel's expression will lead her to the correct answer? The 14 in the expression could be changed to 28. The 0.2 in the expression could be changed to 0.4. The 14 in the expression could be changed to 70. The 0.2 in the expression could be changed to 2.
Answers
Complete question :
Mikel creates the table below to help her determine 40% of 70. She writes the expression Which change in Mikel’s expression will lead her to the correct answer?
Corresponding chart for the problem is attached below.
Answer:
The 0.2 in the expression could be changed to 2.
Step-by-step explanation:
40% of 70
Directly working this out, we obtain :
0.4 * 70 = 28
From the table :
To obtain same from the columns, 0.2 is adjusted to 2.
Hence, 2 * 14 = 28
Question 4 of 10
What is the distance between the points (3, 7) and (15, 16) on a coordinate
plane?
Answers
Answer:15
Step-by-step explanation:
distance = Sqrt((x2-x1)^2 +(y2-y1)^2)
15-3 =12
16-7=9
12^2 = 144
9^2 = 81
144+81 = 225
square root of 225 = 15
the distance is 15
please help!!!!
it’s due today and it’s worth 30% of my grade!!!!
Answers
Answer:
2nd one because that's the proportion a
find each unit price to decide which is the best buy
Answers
Answer:
do you have more info so I can help
A pool has dimensions of 40m by 20m. We'd like to add a tile path surrounding the pool with a width of 1m all the way around the pool. What's the area of the path?
Answers
Simplify: -x - 4x + 2
Answers
Answer:
5x+2
Step-by-step explanation:
:)
Answer:
16x little 2 on top - 40xy + 25y little 2 on top
Step-by-step explanation:
y=−34x 2 +1542x−10037
Answers
Answer:
10105
1542
Step-by-step explanation:
2 minutes left need help PLS :(
Answers
-32=-4b
show work please
Answers
Answer: b = 8
Step-by-step explanation: You have to divide (-4) on both sides and -32/-4= 8 so b =8
Answer:
Step-by-step explanation:
-32=4b
divide -4 by both sides
-4/-4=1
-32/-4=8
therefore, b=8
Find X given Circle A, please help !!
Answers
PLEASE DONT SKIP THIS I NEED HELP
Can someone please explain how to solve this problem?
Answers
Which of the following is equivalent to y = log7 x ?
Answers
The expression that is equivalent to the function [tex]y=log_7x[/tex] is [tex]x = 7^y[/tex]
Given the logarithmic function [tex]y=log_7x[/tex]
We can express this logarithm function in indices form. For instance;
If, [tex]y=log_ab[/tex], then [tex]b=a^y[/tex]
Note that the base is raised to the output and equated to the constant "b"Hence the for the expression, [tex]y=log_7x[/tex], this is also equivalent to [tex]x = 7^y[/tex]Learn more here: https://brainly.com/question/24160371
*URGENT* I NEED HELP WITH THIS QUICK
Answers
Answer:
A. Choice 2
B. Choice 1
C. Choice 2
D. Choice 1
Step-by-step explanation:
So basically if it's being multiplied by something each time, then it's choice 2 and if it's being add by something each time, then it's choice 1.
A. You can see in the diagram that each time you multiply the y-value by 2, so it's choice 2
B. In the equation you can tell that every time you will be adding 16, so choice 1
C. Since it's being multiplied by 0.75 each time, it's choice 2
D. Every time y grows by 12, so it's choice 1.
Could someone help me with 7-10
On Match each function with its graph
Answers
Answer:
c
Step-by-step explanation:
the area of a 12-cm- wide rectangle is 180cm. what is its length?
Answers
Answer:
multiply the legth times width
Step-by-step explanation:
The marks of Riju in Mathematics test increased from 20 to 30. What is the percentage of increase?
Answers
Answer:
hope it is helpful
Step-by-step explanation:
10 is the increase in number
orignal vale is 20
so
increase %=increase in orignal value/orignal value ×100
=10/20×100=50%
1: how to convert fractions into presentage?
2: what is 7/25 as a presentage
3: what is 27/100 as presentage
Answers
Answer:
1: divide the two numbers and then multiply by 100
2: 28%
3. 27%
Step-by-step explanation:
2. 7/25= .28 -> .28x100= 28
3. 27/100= .27 -> .27x100= 27