Mathematics High School

(7-6i)(7+6i) please show me how you got the answer step by step thankkksss

Answers

Answer 1

Answer:

Just cross multiply

48+42i-42i-36i

then your final answer is: 48-36i

Answer 2
(7-6i)(7+6i)
Multiply the 7^2=49
Multiple the 6^2=36
49-36i
The i will count as a 1
49-36x1
36x1=36
49+36=85

Related Questions

Steve invests $1,800 in an account that earns 3.7% annual interest, compounded continuously. What is the value of the account after 10 years? Round your answer to the nearest dollar. A. about $2,466 B. about $2,589 C. about $2,601 D. about $2,606

Answers

Answer:

B. about $2,589

Step-by-step explanation:

Given data

P=$1,800

R= 3.7%

T=10years

The expression for the compound interest is given as

A= P(1+r)^t

substitute

A= 1800(1+0.037)^10

A= 1800(1.037)^10

A=1800*1.43809495884

A=$2588.570

Hence the answer is  B. about $2,589

4. Find the value of x.
A 7
B -7
C 3
D 3.5


Answers

Answer:

l got 7 sorry if it is not the answer

Step-by-step explanation:

2x+12=5x-9 two will come to the other side n become 5x-2x=3x then 9 will go to the other side n become 12+9=21

3x=21 then divide both sides by 3

what are ratios that are equivalent to the ratio 4:10

Answers

Answer:

2:5

8:20

20:50

Step-by-step explanation:

Just multiply each side of the ratio by the same number to get equal ratios (:

They are forest I checked there work hope h have a good life took long well byee

What is the volume of the cylinder?

Answers

Answer:

24

Step-by-step explanation:

a garden box has a perimeter of 27 1/2 feet if the length is 9 feet what is the area of the garden box answer correct and i will rate you brainly

Answers

Answer:

42 3/4 ft²

Step-by-step explanation:

I don't know how to put this in words-

what do you notice about these two equations? (How many solutions?)
y=3x-2
y=-3x-9



Answers

Answer:

they both have the same slope and have infinite solutions

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

find the value of x in the given figure​

Answers

Answer:

x = 32

Step-by-step explanation:

(2x + 60) + (3x - 40) = 180  because they are supplementary angles

5x + 20 = 180

5x = 160

x = 32

Which equation has exactly ONE solution?
A) 3 + 10x / 2 = 4x + 2
B) 15x − 5 / 3 = 5x + 4
C) 2 + 6x / 2 = 3x + 1
D) 4x − 10 / 2 = 2x − 5

Answers

Answer:

the answer is d.

Step-by-step explanation:

please mark brainliest

Answer:

I don't know  because

Step-by-step explanation:

A= -1

B)= 17/30

C)= has no solutions

D)= 0

which expression is equivalent to -6 (-2/3 + 2x)

FIRST ONE TO GET IT RIGHT GETS BRAINLEIST

Answers

Answer:

use symbolab

Step-by-step explanation:

it works

-6(-2/3+2x)

Simplify


1. Rearrange terms

−6(−2/3 + 2)

−6(2 − 2/3)


2. Distribute

−6(2x – 2/3)

−12x +4


Solution

−12x + 4

hellooop

what is the y-intercept of the graph shown below?

Answers

Answer:

-7 :) hope this helps

Step-by-step explanation:

Answer:

-6

Step-by-step explanation:

To find the y intercept find where the line crosses the the x axis at zero so for this graph it crosses at (0,-6) making the y intercept -6

Find the length of the indicated
side of the similar figure.

x = [?]

Enter the number that belongs in the green box.

Answers

Answer:

25

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

trust

A teacher asked four of her students to write an expression for the problem below. All products in a store are being discounted by 25 % . Let x be the original price of a product in the store. What is the sale price of that product in the store? Their responses are show below: Joseph: 0.75 x Thomas: 1.25 x Sandra: x − 0.25 x Angela: x + 0.25 x Whose response is correct

Answers

Answer:

she iduno

Step-by-step explanation:

Richard works from 10:00am to 4:00pm. His dinner break is 25% of the way through his work shift. What time is Richard's dinner break?

Answers

Answer:

1 hour and 30 minutes

Step-by-step explanation:

A big-screen TV that previously sold for $2,400 has been marked down to $2,040. What is the original price?

Answers

Answer:

easy $2,400

Step-by-step explanation:

IF KLMN is a rhombus, and m angle KLM=80^ , what is the m angle 1

Answers

Answer:

angle 1 = 100°

Step-by-step explanation:

Given:

∠KLM = 80°

Find:

angle 1

Computation:

∠KLM + angle 1 = 180°

80° + angle 1 = 180°

angle 1 = 100°

There are 12 people in a tournament. Each player must play against every other player. How many games will be played?

Answers

Answer:

6

Step-by-step explanation:

A player will play against every OTHER player meaning that you will play against 6 players.

One number is 16 more than another number. The two numbers have a sum of 120. Which system of equations could you use to find the two numbers?
A)y=x – 16
y=x + 120
B)y=x + 16
y = x + 120
C)y=x - 16
y=x – 120
D)y= x - 16
y = -x + 120​

Answers

Answer: D)y= x - 16

                y = -x + 120​

Step-by-step explanation:

Let the two numbers be x and y

such that if one number is x , the other number y

Let x be the number which is 16 more than another number , so that it  can be expressed as

x= y+16  which can also be written as

y= x - 16

Also, if the two numbers have a sum of 120, then it can be represented as

x+y=120  or

y = -x + 120​

Therefore system of equations  to find the two numbers are

D)y= x - 16

y = -x + 120​

The table shows a function. Is the function linear or nonlinear?​

Answers

Answer:

nonlinear

Step-by-step explanation:

Hey There!

A linear function would have a straight line when graphed meaning that it would have a constant slope

This is a nonlinear function because y is not moving at a constant rate with x

16-8=8

8-2=6

It went down 8 then it went down 6

therefore it is a nonlinear function

You made two deposits to your bank account this month. One deposit was $17.92, and the second deposit was $15.33. Your balance at the end of the month is $72.31, and you made no withdrawals. Write and evaluate an expression for your balance at the beginning of the month.


$72.31 + ($17.92 – $15.33); $74.90

$72.31 – $17.92 – $15.33; $39.06

$72.31 – ($17.92 – $15.33); $69.72

$72.31 + $17.92 + $15.33; $105.56

Answers

2nd one........................................................................................................................................

PLEASE HELP ASAP 100 POINTS AND BRAINIEST
please solve 7y + 13 -4z when =5 and z =9.

Answers

Answer:

35+13-36

Step-by-step explanation:

35+13=48

48-36=12

the answer is:

=12

if you need the step by step explanation let me know :)

I need help ASAP!!!!

Answers

not sure i can help with thise since it’s in a graph try asking ur teacher for help maybe?

Answer:

9 + 6 = 15

Hopes this helps

UwU

Solve the system of equations.
12x - 5y = –20
y=x+4
2 =
Y=

Answers

Answer:

Solution :

{x,y} = {0/14261512,4}

Step-by-step explanation:

Solve by Substitution :

// Solve equation [2] for the variable y

[2] y = x + 4

// Plug this in for variable y in equation [1]

[1] 12x - 5•(x +4) = -20

[1] 7x = 0

// Solve equation [1] for the variable x

[1] 7x = 0

[1] x = 0

// By now we know this much :

x = 0

y = x+4

// Use the x value to solve for y

y = (-0/14261512)+4 = 4

Answer:y = (-0/14261512)+4 = 4

Step-by-step explanation:[2]    y = x + 4// Plug this in for variable  y  in equation [1]

  [1]    12x - 5•(x +4) = -20   [1]    7x = 0// Solve equation [1] for the variable  x

  [1]    7x = 0

  [1]    x = 0 // By now we know this much :

   x = 0    y = x+4// Use the  x  value to solve for  y

   y = (-0/14261512)+4 = 4 Solution : {x,y} = {0/14261512,4}

Identify four tables that show a proportional relationship. Giving correct answer brain and 5 stars!!!

Answers

Answer:

The correct answer is A

Step-by-step explanation:

Forget about the decimal nd think about quarters 1 quarter is 25 2 is 50 3 is 75 and 4 is 1.00

Answer:

The answer is A if I understand the question correctly.

Step-by-step explanation:

Calculate the area of the shape.

Answers

Answer: 38.46

Step-by-step explanation:

Answer: C or option 3

Step-by-step explanation:

Simplify the equation. n ÷ 12 = 11​

Answers

Answer:

n=132

Step-by-step explanation:

Answer:

132

Step-by-step explanation:

n/12=11

n=11*12

n=132

The rectangular prism below is split into cubes. Each cube is 1/5 of an inch on each side. Which of the following expressions represent the volume, in cubic inches, of this rectangular prism? Select all that apply.
A. 1/5 x 1/5 x 1/5
B. (1/5 x 1/5 x 1/5) x 12
C. 2/5 x 3/5 x 2/5
D. 2/5 +3/5 + 2/5
E. (2 x 1/5) x (3 x 1/5) x (2 x 1/5)
F. (2 x 25 x2/5) + (2 x 3/5 x 2/5) + (2 x 2/5 x 3/5)

Answers

Answer:

a b and 3

Step-by-step explanation:

hope this helps :)

Please help me with question

Answers

Answer:

Yes, you are right.

Step-by-step explanation:

RS  = 20

UT = 20

UT also = x + 10

x = 20 - 10

x = 10

So, yes, you are right.

Hope that helps!

Whoever answers correctly gets brainliest

Answers

1 min=.15
therefore 17x.15= 2.55
17 minutes would come out to $2.55
You would have to pay 32 cents

Do u love school? I while give u brainliest and alot of points to the people who answer first

Answers

Answer:

yes

Step-by-step explanation:

School is an educational building where you learn math and reading and it doesnt help you but it benifits you in jobs.

Answer:

well yes but no at the same time

Step-by-step explanation:

have a nice week. please mark as brainllest

[o]-[o]

\___/

The diagram shows a square ABDE and an isosceles triangle BCD.
Angle C = 40°

Work out the size of angle EBC.


Answers

Answer:

Show us the picture ijoejdjoemwpoe

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