(-3-5/)(-3+5/)=
34
34-30i
-16

Answers

Answer 1

Answer:

(m+ni)2=  -16 - 30i

2m + 2ni = -16-30i

.)2m=-16            .)2n=-30

m= -8                   n= -15

por lo tanto.....

m2 + n2

(-8)2 + (-15)2

-16 + (- 30 )

-16 - 30

-46

respuesta.....   - 46

Step-by-step explanation:

Answer 2

Answer:

34

Step-by-step explanation:

Given

(- 3 - 5i)(- 3 + 5i) ← expand using FOIL

= 9 - 15i + 15i - 25i² [ i² = - 1 ]

= 9 + 25

= 34


Related Questions

One day the temperature is 32 f at 6am it rises 15 by noon but falls 50 by midnight what’s the final temperature ?

Answers

The final temperature is -3 Degrees.

(2x)(x2) + (2x)(x) + (2x)(–2) + (3)(x2) + (3)(x) + (3)(–2)

Answers

Answer:

6x^2 + 5x - 6

Step-by-step explanation:

4x^2 + 2x^2 + -4x + 6x + 3x + -66x^2 + 5x - 6

In scientific notation, 680,000 =
X 105.

Answers

6.8 × [tex]10^{5}[/tex]

7 + x - (3 + 32 = 8) = 3

Answers

Answer:X=3

Step-by-step explanation:We simplify the equation to the form, which is simple to understand  

7+x-(3+32/8)=3

Simplifying:

7+x-(3+4)=3

Simplifying terms in parentheses

7+x-(+7)=3

Remove unnecessary parentheses

7+x-7=3

We move all terms containing x to the left and all other terms to the right.  

+1x=+3-7+7

We simplify left and right side of the equation.  

+1x=+3

We divide both sides of the equation by 1 to get x.  

x=3

Solve for v.
3y+17 = 62
Simplify your answer as much as possible.

Answers

Answer:

Hi there!

Your answer is 15

Step-by-step explanation:

3y+17=62

Step 1 : isolate y by subtracting 17 from both sides.

3y= 62-17

3y = 45

Step 2: Divide out the 3 so you have 1y.

3y=45

/3. /3

y= 15

Answer:

The answer is y=15

Step-by-step explanation:

An equilateral triangle has a perimeter of 15x + 24. What is the length of one side of the triangle?​

Answers

Answer:

5x+8

Step-by-step explanation:

[tex]\frac{15x+24}{3} =\frac{15x}{3} +\frac{24}{3} =5x+8[/tex]

Answer:

5x+8

Step-by-step explanation:

Please help me this is my last question

Answers

Answer:

230[tex]\frac{2}{3}[/tex]

Step-by-step explanation:

Answer:

230 2/3ft

Step-by-step explanation:

Add 4 numbers:

60 5/6ft + 54 1/3ft + 56 1/6ft+ 59 1/3ft =230 2/3ft


solve for x please!

Answers

x^2 = 81/100

Let's take the square root of each side

x = 0.9 and -0.9

Need help, please and thank you!

Answers

Answer: H

Step by Step:
(2g-2)+(4g-9)= 6g-11
133=6g-11
+11 +11
144=6g
24=g

2g-2
2(24)-2
48-2
46

how do you know that the sum of (-2 3/4) and 5/9 is rational

Answers

Answer:

The sum is fraction therefore rational .

Step-by-step explanation:

-2 3/4+ 5/9

=-11/4+5/9

=-99+20/36

=-79/36

=-2.1944444......

the sum is we can say fraction or non-terminating but repeating which is the definition of a rational number.

Does anyone know this?

Answers

Answer:

x¹=-6 x²=0

Step-by-step explanation:

Substitute y =0

Swap sides

Factor expression

Split into possible cases

Solve equation

Which value is equivalent to 0.5?

Answers

Answer:

1. 5/10

Step-by-step explanation:

Since the options are in fractions, you have to mave 0.5 into a fraction. It is 5 tenths so 5/10 which is 1/2.

The first one is 5/10

1 x 5 = 5

2x 5 =10

So this is equivalent Since there is only one answer, you don't have to try out the rest, thankfully ;)

Hopw this helps :)

Answer:

1.5/10 is the answer

Solve the following equation x + 9 = -12 x =

Answers

Answer:

x=-9/13

Step-by-step explanation:

x+9=-12x

13x=-9

x=-9/13

please mark it as brainliast

Answer:

x = - 9/13

Step-by-step explanation:

Hi there !

x + 9 = - 12x

     →      ←

x + 12x = - 9

13x = - 9

x = - 9/13

Good luck !

Measuring Angles. Please help me this is due at 11:59 today. Please and thank you​

Answers

Answer:

35 degrees

Step-by-step explanation:

2x+13+10x=145

2x+10x+13=145

12x+13=145

12x=145-13

12x=132

X=11

2×+13

(2×11)+13

22+13=35

Can somebody help with this math homework

Answers

Whats the math you need help with?

identifiey the lead coefficient and the constant term of the following. [tex]2x-3x^3+7+4x^2[/tex]

Answers

Answer:

Lead coeficcent: -3 term 7

Step-by-step explanation:

7 is the only constant and -3 is the grates coeficcent.

The set of ordered pairs a where
t is the time in seconds after
someone jumps out of a plane at
4000 meters to go skydiving, and d
is the displacement above the
ground

I need to find the domain and Range.

Answers

Answer: Domain is [tex][0,\infty)[/tex] and range is [0,4000].

Step-by-step explanation:

It is given that, the set of ordered pairs (t,d), where

t = the time in seconds after  someone jumps out of a plane at  4000 meters to go skydiving

d = is the displacement above the  ground.

It means t is independent variable and it is represented on the x-axis.

d is dependent variable and it is represented on the y-axis.

We need to find the domain and Range.

Domain is the set of input values.

Here, input is time and time can not be negative.

Domain [tex]=0\leq t=[0,\infty)[/tex]

Range is the set of output values.

Here, output is displacement above the  ground which can not be negative or more than 4000 meters.

Range [tex]=0\leq d\leq 4000=[0,4000][/tex]

Therefore, domain is [tex][0,\infty)[/tex] and range is [0,4000].

(ASAP 50 POINTS) If the aspect ratio of a chalkboard is 4:3 and the width is 12 in, what is the length of the chalkboard?

Answers

The answer is 6.67 i think

Answer: The length of the chalkboard is 9 inches.

Step-by-step explanation:

12/4= 4

3*3= 9

12:9 is equal to 4:3

Match to the answer

Answers

Answer:

square roots

quadratic formula

factoring

complete the square

Step-by-step explanation:

1. In the first one, we can divide both sides by -2 and then square root it, getting x^2 = -98 so x = 7i \sqrt(2).

2. We can use the quadratic formula to find out the second one.

3. We can factor 4x^2 - 21x - 18 = 0 and get (x + 6)(4x - 3).

4. In the last one, we can complete the square, getting (x + 9)^2 + 16.

Identify the variable as being discrete or continuous A person's age​

Answers

Answer: A Person's age is usually considered a discrete variable.

Step-by-step explanation: lets say a person was born in November 2000 and the date is currently September 2020 if asked their age the person would say 19 because they have not turned 20 yet. therefore no matter what date anytime between their 19th birthday up until their 20th birthday they would say they are 19 making age a discrete variable.

Which situation would require an answer that is a whole number?

Answers

Answer:

The set of positive integers and zero.

Step-by-step explanation:

[0 1 2 3 4 5 6 7 8 9......∞)

Find the midpoint between the two points (-7, -2) and (-7,2).

answer (?,?)

plz help​

Answers

Answer:

(-7,0)

Step-by-step explanation:

Answer:

The midpoint would be (-7,0)

Step-by-step explanation:

Pls help me out I mark BRAINLIEST

Answers

Answer:

its b

Step-by-step explanation:

i litteraly just did that

Answer:

D

Step-by-step explanation:

Since it is an equal sign you want to know when the will have the same amount of money. Also, the person who has $90 must save $9 a week as well because both those numbers are on the same side of the equation and vice versa.

Convert 50 miles per hour to feet per second ( 1 mile = 5280 feet and 1 hour = 3600 seconds )

Answers

Answer:

73.3

Step-by-step explanation:

50mi/h * 5280ft/mi * 1h/3600s = 220/3 = 73.3 ft/s

Answer:

73 1/3 feet per second

Step-by-step explanation:

50 miles per hour

50*5280/3600 = 73 1/3 feet per second

2 is increased by a number.

Answers

Answer:

2+x

Step-by-step explanation:

Let the unknown number be x

Increase = +

[tex]2+x[/tex]

by a number of what ?

Brainliest given

I got -6 but can someone explain too??

Answers

Answer:im not good at explanation but i think its -1

Step-by-step explanation:

Help me!!!!Please Thank youuuuuuu!!!!!!!!!!!!!!!

Answers

Answer:

see below

Step-by-step explanation:

1)

[tex]m+13=-2\\\\m+13-13=-2-13\\\\m+0=-15\\\\m=-15[/tex]

2)

[tex]0=p+7\\\\p+7=0\\\\p+7-7=0-7\\\\p+0=-7\\\\p=-7[/tex]

3)

[tex]5n=75\\\\\frac{1}{5}(5n)= \frac{1}{5}(75)\\\\n=15[/tex]

4)

[tex]-7=\frac{m}{10} \\\\10(-7)=10(\frac{m}{10} )\\\\-70=m\\\\m=-70[/tex]

5)

[tex]-1=7+r\\\\r+7=-1\\\\r+7-7=-1-7\\\\r+0=-8\\\\r=-8[/tex]

6)

[tex]-42=14v\\\\\frac{1}{2}(-42)= \frac{1}{2} (14v)\\\\-21=7v\\\\\frac{1}{7}(-21) =\frac{1}{7}(7v)\\\\-3=v\\\\v=-3[/tex]

7)

[tex]80=-8p\\\\8(10)=-8p\\\\\frac{1}{-8}(8(10))= \frac{1}{-8} (-8p)\\\\-10=p\\\\p=-10[/tex]

8)

[tex]\frac{x}{4} =-8\\\\4(\frac{x}{4} )=4(-8)\\\\x=-32[/tex]

9)

[tex]13=\frac{x}{2} \\\\2(13)=2(\frac{x}{2})\\\\26=x\\\\x=26[/tex]

10)

[tex]-1=n-15\\\\n-15=-1\\\\n-15+15=-1+15\\\\n+0=14\\\\n=14[/tex]

Solve the inequality. 20<5/6w

Answers

Answer:

w>24

Step-by-step explanation:

Let's solve your inequality step-by-step.

20<5/6w

Answer: x>24

Step-by-step explanation:

To solve the inequality, we want to isolate w.

[tex]20<\frac{5}{6}w[/tex]             [multiply both sides by 6/5]

[tex]w>24[/tex]

Now, we know that w>24 or 24<w.

Your weekly pay (use Y) for working at a sandwich shop is based on the number of hours (use x) you work. How much will you make if you work 20 hours? Y=15x

Answers

The answer is : y = 300

Your peers always get to the playground first and take all of the balls. It takes you longer to put on your clothes, so you always miss the first part of recess. Sometimes they tease you when you finally arrive. Who and how can you ask for help with this problem?

Answers

Answer:

Talk to a teacher

Step-by-step explanation:

Talk to the teacher!

9686584 !jdnd
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