Mathematics High School

multiply (3-6i)^2 write in standard form

Answers

Answer 1

-27-36i .................................................................... not sure

Answer 2

The result of (3 - 6i)² will be -27 -36i .

Given,

(3 - 6i)²

Now,

The multiplication is of complex number .

So,

(3-6i)(3 - 6i)

So,

Multiply the terms ,

9 - 18i - 18i -36

Simplifying further,

-27 - 36i

Thus the resultant will be -27 -36i .

Know more about complex numbers,

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Related Questions

NEED HELP ASAP WILL GIVE 100 points to who anwsers! Celia simplified the expression Negative 4 x (1 minus 3) minus (2 x + 2). She checked her work by letting x = 5 in both expressions. Her work for the original expression is shown below. Negative 4 x (1 minus 3) minus (2 x + 2) = negative 4 (5) (1 minus 3) minus (2 (5) + 2) = negative 20 (negative 2) minus 12 = 40 minus 12 = 28. Celia knows that the simplified expression should also equal 28 when x = 5. Which shows Celia’s simpllifed expression? –6x – 1 –6x + 2 6x + 1 6x – 2

Answers

Answer:

6x-2

Step-by-step explanation:

Celia’s simplified expression:

6x - 2.

The last option is correct.

What is an expression?

One mathematical expression makes up a term. It might be a single variable (a letter), a single number (positive or negative), or a number of variables multiplied but never added or subtracted. Variables in certain words have a number in front of them. A coefficient is the number used before a phrase.

Given Phrase:

Celia simplified the expression Negative 4 x (1 minus 3) minus (2 x + 2).

That means,

-4x(1 -3) - (2x +2).

She checked her work by letting x = 5 in both expressions.

That means,

-4(5)(1 -3) - (2(5) +2).

= 40 - 12

= 28.

To find the simplified expression:

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

= 6x - 2.

Therefore, the required expression is 6x - 2.

To learn more about the expression;

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mark bought 4 pounds of apples for $7.56 what was the cost per pound?

Answers

Answer:

$1.89 per pound

Step-by-step explanation:

$7.56÷4

cost of 4 pounds of apples=$7.56
To find:cost of 1 pound of apples
Therefore, cost of one pound of apple = 7.56 / 4
=$1.89

Henry is following the recipe to make a cake. He has 95 cups of flour. How many cakes can Henry make

Answers

Answer:

Step-by-step explanation:

If it takes 5 cups to make each cake Henry can make 19 cakes.

Could someone help me to understand this please? It would mean a lot

Answers

Answer:

A: AD

B: 25x15=375

Step-by-step explanation:

A: AD is parallel because the lines are the same.

B: AB = 25mm

BC = 15mm

25x15 = 375mm

The image below is for reference to Question B.

Where the red dot Located and explain please

Answers

Answer:

do u have a pic that has a red dot if u do then that would be great

Step-by-step explanation:

NEED PIC

A bicycle has a listed price of $563.95 before tax. If the sales tax rate is 8.75%, find the total cost of the bicycle with sales tax included.
Round your answer to the nearest cent, as necessary.

Answers

Answer:

$613.30

Step-by-step explanation:

8.75% = 0.0875

8.75% of $ 563.95 is $ 0.0875*563.95

$ 0.0875*563.95 is tax in dollars

the total cost = $ 563.95 + $ 0.0875*563.95 = $ 613.295 = $613.30

PLEEEEEEEEEEEEEEEASE HELP ME WITH THIS! IT IS DUE TOMORROW!!!

Answers

Answer:

lines a and b would be parallel, and the reason is <3 and <6 are alternate interior angles

Step-by-step explanation:

Represent the following expressions as a power of the number a (a≠0):
a
(a∧−1·a∧−2)∧−1

Answers

(6x7) that’s the answe

Answer:

a^3

Step-by-step explanation:

solve for x 11/12=10/3x+5-3/4x

Answers

9514 1404 393

Answer:

x = -49/31

Step-by-step explanation:

Fractions can be cleared by multiplying both sides of the equation by 12.

11 = 40x +60 -9x

0 = 31x +49 . . . . . . . . subtract 11, collect terms

0 = x +41/39 . . . . . . . divide by 31

-41/39 = x . . . . . . . . . . subtract 41/39

HELP!!!!!!!!!!!
Simplify
7/9/14

Answers

Answer:

Step-by-step explanation:

7/9 x 1/14

7/14x9

1/2x9

1/18

Can somebody helpp ??

Answers

I believe the location of H is -4. may i please receive brainliest

The mass of Mercury is 3.3022 x 1023 kg, the mass of Venus is 4.8685 x 1024 kg, the mass of Earth is 5.9722 x 1024 kg, and the mass of Mars is 6.4185 x 1023 kg. These four planets are known as the inner planets. What is the approximate combined mass of all of the inner planets?

Answers

Answer:

3378.15+4985.34+6115.53+6566.13 = 21045.15

Which one do not lie!!!!!!

Answers

Answer:

C.The equation has a positive y-intetcept

Step-by-step explanation:

def not lying

PLZ HELP ASAP. I need to make these equations

Answers

Answer:

725 = 475 +25x

15+x/2=9

Step-by-step explanation:

Answer:

725 = 475 +25x

15+x/2=9

Step-by-step explanation:

I got a score of 3374 on Just Dance. My friend got a score of 5500. How much did my friend beat me by?

Answers

2126 points
5500
3374

2126

Answer:

Your friend beat you by 2126 points.

Explanation:

5500 - 3374 = 2126

Two angles of a triangle measure 55° and 20°.
What is the measure of the third angle of the triangle?
A. 15°
B. 90°
C. 105°
D. 2850

Answers

Answer:

C. 105 is the answer

Step-by-step explanation:

Which of the following is an example of a
set of like terms?
a. {197, 19,y}
b. {18x, -X, 21x}
c. {15, 20, 25y}
d. {-2x, -2y, -2xy)

Answers

Answer: B

Explanation: it is the only one with all like terms.

5x²y + 35x²y + 50 xy

HELP ME FACTOR THIS PLEASE!!!

Answers

Answer:

10xy(4x+5)

Step-by-step explanation:

Hope that helped :)

The answer fam is.........10xy(4x+5)

The length of a rectangle is 50 meters. This is 6 meters more than twice the width. Find the width.

Answers

Answer:

106 meters

Step-by-step explanation:

50x2=100 100+6=106

Answer: 22

Step-by-step explanation:

50=2x+6

Add negative 6 to both sides (50+ -6) and (6+-6)

Then divide both sides by 2 (2x/2) and (44/2)

That is how you properly solve this 2 step equation

WILL GIVE BRAINLIEST IF FAST AND RIGHT
In a box there are apples, bananas, and oranges.
There are 29 total pieces of fruit.
There are twice as many apples as oranges.
There are 3 more oranges than bananas.
How many oranges are in the box?

Answers

Answer:

Step-by-step explanation:

apples are 2 x

bananas are x -3

Oranges are x

Total number of Fruits = 2 x + x + x -3 =29

3x+x = 29 +3

4x =32

x = 32/4

=8 Oranges

Evaluate [7] + | - 3|

Answers

Answer:

=[7]+|-3| solve for the absolute value {-3 ->3}

=7+3

=10

Answer:

Step-by-step explanation:

Whenever you see those numbers in those specific brackets, it's asking for the absolute value of that number.

The absolute value is the distance from 0.

So, if you see -3 in those brackets, it's 3 because both -3 and 3 are 3 spaces from 0.

So 7 + 3 = 10.

first person who answer correctly gets a brainllest The perimeter of a rectangle is 64 feet. The length of the rectangle is 3 times the width of the rectangle. If w represents the width of the rectangle, the equation that represents the perimeter is 2 (3 w) + 2 w = 64. Which shows the first step that should be taken to verify that the width of the rectangle is 8?

Answers

Answer:

2(3(8))+2(8)=64

Step-by-step explanation:

Here, w represents the width of the rectangle,

∵ length of the rectangle is 3 times the width of the rectangle,

So, length = 3w,

Since, the perimeter of a rectangle, P = 2(length + width)

= 2(w + 3w)

= 2w + 2(3w)

If P = 64 feet,

⇒ 2w +2(3w) = 64

⇒ 2w + 6w = 64

⇒ 8w = 64

⇒ w = 8

Verification :

P = 2(8) + 2((3(8)) = 16 + 48 = 64 feet

Hence, the first step that should be taken to verify that the width of the rectangle is 8 is 2(3(8))+2(8)=64

Note : a solution obtain from an equation is verified by substituting the value in the equation.

Answer:

im sorry this doesn't help but its not d

Step-by-step explanatio

There are a total of 64 students in the video game club and the Pokémon club. The video game club has 10
more students than Pokémon club. How many students are in each club?

Answers

Answer: Video game club has 37 members and the Pokémon club has 27 members

Step-by-step explanation:

Elevator 1 in a hotel moved from ground position to a final position of +18 feet. Elevator 2 in the same building moved from ground to a final position of −20 feet. Which statement best describes the final positions of these two elevators?
A. Elevator 1 is 18 feet below ground level, and Elevator 2 is 20 feet above ground level.
B. Elevator 1 is 18 feet above ground level, and Elevator 2 is 20 feet below ground level.
C. Elevator 1 is 18 feet above ground level, and Elevator 2 is 20 feet below the position of Elevator 1.
D. Elevator 1 is 18 feet below ground level, and Elevator 2 is 20 feet above the position of Elevator 1.

Answers

Answer:

Step-by-step explanation:

because since they say elevator 1 is +18 and elevator 2 is -20 and they didnt state anything else so it would be B.

Answer:

B. Elevator 1 is 18 feet above ground level, and Elevator 2 is 20 feet below ground level.

Explanation:

"+" represents positive numbers, and "-" represents negative numbers.

FACTOR: 25x4y2z + 15x2y3

Answers

Answer:

(25x * 4y * 2z) + (15x * 2y^3)

10xy(20z + 3y^2)

(if you want working, just comment [too much effort lol])

Help! how does the y- value change?

Answers

When the value of x increases, the value of y decreases and the graph slants downward.

(1 + 3x)º (x – 13) °

Answers

Answer:

3x^2-38x-13

Step-by-step explanation:

in the diagram (triangle) ABC = (triangle) PQR.

a. Describe one transformation that maps (triangle) ABC to (triangle) PQR.

b. Describe two reflections that map (triangle) ABC to (triangle) PQR.

c. Reflect (triangle) ABC across the line y = x. Describe how to map image to (triangle) PQR.

Answers

B.
Because it reflects over

Find the LCM of x2 + x,x2-1,x2-x

Answers

Answer: x(x+1)(x-1)

Step-by-step explanation:

x²+x=x(x+1)

x²-1=(x+1)(x-1)

x²-x=x(x-1)

ans:x(x+1)(x-1)

Step-by-step explanation:

You start at (-3, 5). You move right 3 units and down 7 units. Where do you end?

Answers

Answer:

(0,-2)

Step-by-step explanation:

-3 plus 3 equals 0 and 5 minus 7 equals -2, so (0,-2).

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