perform the indicated operation. (4+12i)+(-9-8i)​

Answers

Answer 1

Answer:

4 i - 5

Step-by-step explanation:

Simplify the following:

4 + 12 i - 9 - 8 i

Hint: | Evaluate 4 + 12 i - 9 - 8 i.

4 + 12 i - 9 - 8 i = (12 i - 8 i) + (4 - 9) = -5 + 4 i:

Answer:  4 i - 5

Answer 2
I’m pretty sure the answer is 4i - 5

Related Questions

A school bus uses 34 of a tank of gas to drive back and forth to school in a week with 5 school days. How much gas does the bus use to drive back and forth to school in a week with 4 school days? Write your answer in simplest form. The bus uses of a tank.

Answers

Answer:

27.2 of a tank

Step-by-step explanation:

[tex]\frac{34}{5}[/tex] = [tex]\frac{x}{4}[/tex]

136 = 5x

x = 27.2

I don’t really get this.

Answers

Answer:

The answer is H. II and III only.

Step-by-step explanation:

A simple way to tell if a relation is a function is by taking a look at the X value, which is on the left. If the X value repeats again  (ex: (0,1) (0,2) or (5,3 (5,7)) it is not a function. However, the Y value is allowed to repeat.  

find the equation of the line parallel to H passes through (-4,2)

Answers

Answer:

y = [tex]\frac{1}{3}[/tex] x + [tex]\frac{10}{3}[/tex]

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate the slope m of H using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (0, - 3) and (x₂, y₂ ) = (3, - 2) ← 2 points on the line

m = [tex]\frac{-2+3}{3-0}[/tex] = [tex]\frac{1}{3}[/tex]

Parallel lines have equal slopes, thus

y = [tex]\frac{1}{3}[/tex] x + c ← is the partial equation

To find c substitute (- 4, 2) into the partial equation

2 = - [tex]\frac{4}{3}[/tex] + c ⇒ c = 2 + [tex]\frac{4}{3}[/tex] = [tex]\frac{10}{3}[/tex]

y = [tex]\frac{1}{3}[/tex] x + [tex]\frac{10}{3}[/tex] ← equation of parallel line

what is 9 plus 10 anyone lol

Answers

Answer: its 19 . lol

Step-by-step explanation:

Answer:

19

Step-by-step explanation:

10 + 9 =19

PLSSS HELP ASAP & plsss SHOW WORK PLS AND TYY
if TV=14x-8, find TU

Answers

Answer:

[tex]x = 3[/tex]

Step-by-step explanation:

[tex]tu = tv - uv \\ tu = (14x - 8) - 5 \\ tu = 14x - 13 \: - - - (1) \\ \\ tu = 9x + 2 \: - - - (2) \\ \\ sub \: (1) \: into \: (2) \\ \\ 14x - 13 = 9x + 2 \\ 14x - 9x = 2 + 13 \\ 5x = 15 \\ x = \frac{15}{5} \\ x = 3[/tex]

What is the range of the relation shown in the graph?

Answers

Answer:

-2

Step-by-step explanation:

Evaluate the expression (-3)(4)(-6)

Answers

- 3 x 4 x - 6 = 72. That is your answer

if EF bisects CD, CG =5x-1, GD = 7x-13, EF = 6x-4, and GF =13, find EG

Answers

Greetings from Brasil....

As stated in the statement of the question, EF is a bisector of CD, so point G is the median point of CD, so CG = GD

5X - 1 = 7X - 13

X = 6

EF = EG + GF

6X - 4 = EG + 13      x = 6, so

6·6 - 4 = EG + 13

EG = 19

(see attachment)

A line segment is also a line but the line with finite length and having fixed endpoints. The length of the line segment EG is 19 unit.

What is a line?

A line is a one-dimensional shape that is straight, has no thickness, and extends in both directions indefinitely.

Given that EF bisects CD at point G, therefore, the line segment CD will be divided into two equal parts, CG and GD. Therefore, we can write,

CG = GD

5x - 1 = 7x - 13

-1 + 13 = 7x - 5x

12 = 2x

x = 12/2

x = 6

Further, the length of segment EG will be,

EG = EF - GF

     = 6x - 4 - (13)

     = 6x - 4 - 13

     = 6x - 17

     = 6(6) - 17

     = 36 - 17

     = 19

Hence, the length of the line segment EG is 19 unit.

Learn more about Line here:

https://brainly.com/question/21511618

#SPJ2

What is an opposite reciprocal?

Answers

Answer:

Opposite reciprocals are two numbers that are flipped fractions of eachother. For example, the reciprocal of 2/3 is 3/2.

Answer:

An Opposite reciprocal is like a number flipped

Step-by-step explanation:

4 = 1/4

2/3 = 3/2

Solve 2x + 3y = 11 and 2x - 4y = -24 and hence find the value of 'm' for which y=mx+3.

Answers

Answer:

m=-1

Step-by-step explanation:

2x+3y=11............. (eqn 1)

2x-4y=-24...........(eqn 2)

Subtract eqn 1 from eqn 2

7y=35

y=5

Substitute for y in eqn 1

2x+3(5)=11

2x+15=11

2x=11-15

2x=-4

x=-2

y=mx+3

5=-2m+3

5-3=-2m

2=-2m

m=-1

Answer:Here,

2x+3y=11..........(i)2x-4y= -24......... (ii)

Subtracting (ii) from (i),we get

2x+3y=11

- 2x+4y=24

___________

7y =35

y=5

Substituting y = 5 in (i) we get

2x+3×5=11

or,2x +15 =11

or,2x = 11- 15

or,x= -2

Now,

We know,y=mx+c

5=m ×(-2) +3

or,2=m×(-2)

or,2/-2 =m

m= -1

5-(x/3)when x=12

What’s the answer

Answers

Answer:

When x is 12, [tex]5-(\frac{x}{3})=1[/tex]

Step-by-step explanation:

[tex]5-(\frac{x}{3} )[/tex]

Insert the given value of x:

[tex]5-(\frac{12}{3} )[/tex]

Simplify the expression. Divide 12 by 3:

[tex]5-4[/tex]

Simplify subtraction:

[tex]1[/tex]

:Done

Answer:1

Step-by-step explanation:

M is the midpoint of AB, AM=2x+3, and AB= 8x-10. Find MB

Answers

I’m not sure if this is correct but I think the answer is 7.4 correct me if I’m wrong.

Explanation:

In order to find this answer I simply tried getting x by it self

8x-10 = 2x+3

then subtracted 2 from both sides (F.Y.I choose to start from the the left since 2 is lower then 8) the 2x= -2x cancel then if subtracted 8x from -2x you should get 6x
From there it should be
6x-10=3

Add 10 from both sides

Then your left with 6x=13

Now for this answer I obviously got a decimal and I’m not sure how I would go about rounding so I just rounded it to the nearest tenth.

After rounding 2.166666666666667

I was left with 2.2

From there I plugged it into the the AM formula

in the question M is the midpoint of AB so AM is congruent to MB AM=MB

AM=2x+3 MB=?

if you plug 2.2 in replace of x

2(2.2)+3 it should equal 7.4.

I hope I’m right, truly sorry if I’m not! I’m a freshie on the job! Good luck wishes!

I’m being timed!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

y=mx+b

Step-by-step explanation:

y=mx+b

If you know the slope m , and y -intercept (0,b) of a line (the point where the line crosses the y -axis), you can write the equation of the line in slope-intercept form .

Answer:

y=mx+b

Step-by-step explanation:

m and b can be any two real numbers.

y=mx+b

No real work, one of those linear equations that should be memorized.

What is the inequality 4/5__1/2

Answers

Answer:

Step-by-step explanation:

Notice that:

● 1/2 = 0.5

● 4/5 = 0.8

0.8 is greater than 0.5.

So:

● 0.8 > 0.5

● 4/5 > 1/2

Answer:

4/5 > 1/2.

Step-by-step explanation:

4/5 is greater than 1/2.

Find x when y=6 in the literal equation 5x+4y=39

A. 12.6
B. 15
C. 2.25
D. 3​

Answers

Answer:

y=6

then,

5x+4y=39---> plug y in to the function

5x+4(6)=39

5x+ 24=39

5x= 39-24

5x= 15

x= 15/5

x= 3

So, the value of x when y=6 in that function is 3 (D)

What is the degree for this

Answers

Answer:

4

Step-by-step explanation:


Celina and Zoe both sing in a band.
One evening the band plays for 80 minutes.
Celina sings for 65% of the 80 minutes.
8
Zoe sings for of 5/8 of the 80 minutes.
Celina sings for more minutes than Zoe sings.
Work out for how many more minutes.

Answers

Step-by-step explanation:

65% of 80= 80×0.65 = 52mins

5/8 of 80= 5/8×80 = 50 mins

more mins = 52-50= 2 more min

Which is the endpoint of a ray? A. Point R B. Point S C. Point T D.Point U

Answers

Answer:

point s

Step-by-step explanation:

they all connect there

Answer:

the answer is B. Point S

Step-by-step explanation:

hope this helped, please mark brainliest :,)

Yin practiced 604 minutes of piano. She plans to reach 700. How much minutes does she need to reach her goal?

Answers

Answer:

She needs

96 minutes

to reach her goal

Step-by-step explanation:

700 - 604 = 96

Answer:

96 minutes

Here is the way to do it-

Yin's goal = 700

Yin's progress- 604

700 - 604 = 96.

The answer is 96. Hope this helps!

Anyone down to help? 12pts for PRE-ALGEBRA question Use the information in the table for 2–4.

Answers

Answer:

See attached image

Step-by-step explanation:

If the number of blueberries is the x value, and number of calories is the y value, then we can create the ordered pairs (5,4) (10,8) (15,12) based on the data in the table.

Plotting these on the graph is simple - just go to the x value then the y value and plot where these lines meet.

The slope of a line is always the rise over run.

Every time our x increases by 5, our y increases by 4. The rise is 4, and run is 5, so the slope is [tex]\frac{4}{5}[/tex]

Hope this helped!

-6x(-3x - 10) Distributive property! I’m so bad at it

Answers

the answer is 18x^2+60x

If f(x) = x/2 -2 and g(x) = 2x^2 + x - 3, find (f+g) (x) A. 2x^2+3/2x +1 B. 2x^2+3/2x-5 C. x^2 - 6 D. 2X^2- x/2 + 1

Answers

Answer:

              [tex]\bold{(f+g)(x)=2x^2+\frac32x-5}[/tex]

Step-by-step explanation:

[tex]f(x) =\frac x2-2\quad and\quad g(x) = 2x^2 + x - 3\\\\(f+g)(x)=f(x)+g(x)\\\\(f+g)(x)=\frac12x-2+2x^2+x-3\\\\(f+g)(x)=2x^2+\frac32x-5[/tex]

16) 65m
What is the prime factorization of 65m?

Answers

Answer:

Factors of 65: 1, 5, 13, 65. Prime factorization: 65 = 5 x 13.

Answer:

13*5*m

Step-by-step explanation:

                                                      65m

                                    13     5                           m

Help please what is the inverse of the function

Answers

I hope this helps you

In the classification of living organisms, which of the following is an example of a domain? Animalia Archaebateria Eubacteria Eukarya

PLEASE HELP

Answers

Answer:

I am 90% sure it is D

Step-by-step explanation:

Which side of the polygon is exactly 6 units long?​

Answers

the answer is ab cuz it’s measured in two units if that makes sense

AB is the answer. :)

The total distance in centimeters that a toy robot moves varies directly with the time in seconds the toy robot moves a total distance of 63 cm. In 9 seconds what is the time in seconds that the toy robot moves when the total distance is 49 cm

Answers

Answer:

Hey there!

The robot moves 63 cm in 9 seconds. Then in 1 second, it moves 7 cm.

If it goes 49 cm, it will take 7 seconds.

Let me know if this helps :)

i need help #3 pleasee

Answers

x=4

subtract 8 instead of 2


–2 times the quantity q minus 3

Answers

Answer:

This question was worded weirdly however I am assuming this is algebra and you need the equation. So here- -2(q-3) or -2q+6

Step-by-step explanation:

Distribute the -2, to all the terms in the parenthesis of -2(q-3) you get 2q+6

If you didnt know how to get -2(q-3), -2(multiplied) by q-3, you use parenthesis to make sure you know it is multiplication in front of the parenthesis.

Hope I could help!

While on summer vacation, Mr. Duda traveled about 230 miles to a city near Dallas in 3 hours. How many miles
did Mr. Duda travel per hour?

Answers

Answer:

76 2/3 (Rounded = 77)

Step-by-step explanation:

Step 1: Divide 230 by 3.

Step 2: Get your answer.

Answer - 76.66666666...

Hope this helps!

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