Mathematics High School

Simplify the expression.
-4i(2+3i)

Answers

Answer 1

Answer:

-8i + 12

Step-by-step explanation:

-4i(2 + 3i) = -8i - [tex]12i^{2}[/tex] = -8i - 12 * (-1) = -8i + 12

Answer 2

Answer:

12−8i

Step-by-step explanation:

-(-4 *3+4*2i)

-4*3=12

4*2=8

=12-8i

Related Questions

10. An item is originally priced at $75. It is marked down 30% the first week but still does not sell. It is then
further discounted 20% and sells to a nice couple from Chicago.
a) At what price did the item finally sell for?
b. If sales tax is 9 %%, how much did the couple pay altogether for the item?

Answers

Answer:

A. 37.50

B. 40.87

Step-by-step explanation:

75.00x50%=37.50

37.50×9%=3.37

37.50+3.37=40.87

Find the area of the regular shape in squared units

Answers

what shape? Is it a triangle, square,

A charity distributed 80 000 emergency packages during 2018. This number is
expected to increase by 15% each year.
Calculate how many emergency packages the charity expects to distribute in 2021.

Answers

Answer:

121670

Step-by-step explanation:

The number of packages can be defined with the function:

P(t) = P(t-1)*1.15 where t = the years and 1.15 represents the 15% increase.

Packages during 2018: P(2018) = 80000

Packages during 2019: P(2019) = P(2018)*1.15 = 92000

Packages during 2020: P(2020) = P(2019)*1.15 = 105800

Packages during 2021: P(2021) = P(2020)*1.15 = 121670

Plz help fast will mark brainliest

Answers

Answer:

1.8 , 2.2 , 2.6 thats it

doneeeeeee

Answer:

1.8,1.12,1.16

but don't mark me because I'm not sure for my answer

Please answer this question
PLEASEEEEE HELP MEH
I'm preparing for a math exam please help mehhhh

Answers

Answer:

1. It is a acute-angled triangle

2. It is a right-angled triangle

3. It is a obtuse-angled triangle

Write 0.0065 in standard form

Answers

Answer:

6.5 × 10^-3

Step-by-step explanation:

there 3 decimal points to make it 6.5 so it makes it -3

HELP WHAT IS THE SLOPE!!!!!

Answers

Answer:

1/3

Step-by-step explanation:

Gradient=3/9=1/3

1/3 is the slope for this graph

Enter the ordered pair that corresponds to point C
on the plot below.
10
8
6
4
2
0
0
1
2
3
4
5
6
7
Answer here
SUBMIT

Answers

Answer:

x = 4

y = 5

Step-by-step explanation:

Good luckk!

PLEASE ANSWER ASAP !!!

Answers

Answer:

4/-5

Step-by-step explanation:

Please answer quickly!!!!

Answers

Answer:

..... .

Step-by-step explanation:

......... ......




help plz I dont remember how to solve these

Answers

Answer:

uhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Answer:

12.56 inches²

Step-by-step explanation:

Area = π × r²

A = π × 2²

A = π × 4

A = 4(3.14)

A = 12.56

What is the slope of the line that passes through the points (3, 4) and (-8, -2)?

Answers

Answer:

6/11

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-2-4)/(-8-3)

m=-6/-11

m=6/11

What is the Mean for the given data: 2, 8, 7, 6, 6, 3, 4.4, 5.1, 9, 8

Answers

Answer

5.9

Step-by-step explanation:

The mean of a set of numbers is the sum divided by the number of terms

Which expression is equivalent to the expression below?

2(6k+4)−4(2+2k−1)
-------------------------------------------------------------------------
a} 18+48k

b} 14k−1

c} 4k−4

d} 4+4k

Answers

Answer:

D. 4+4k

Step-by-step explanation:

(12k +8) - (8+ 8k - 4)

12k +8 - 8 - 8k + 4

4k +4

d}4+4k

2(6k+4)-4(2+2k-1) writing down the question

12k+8-8-8k+4 multiplying the numbers by the coefficients

12k-8k+8-8+4 collecting like terms

4k+4 the answer

(-10) (-8) + (+1) + (-6) + (-30)​

Answers

Answer:

-53

Step-by-step explanation:

it is -10 -8 +1 -6 -30

Add the polynomials:
2a+3b+5a-7b Explain your response

Answers

7a - 4b

Step-by-step explanation:

Add the numbers ending with 'a' together, and then add the numbers ending with 'b' together.

First of all, I will put the letters beside each other.

2a + 5a + 3b - 7b

2a + 5a = 7a

3b - 7b = - 4b

Therefore, the answer is 7a - 4b.

What is the area of this polygon?

Answers

Answer:

We need more info

Step-by-step explanation:

More info, pic of polygon?

Areas of Parallelograms and Tria
Find the perimeter and area of each parallelogram

Answers

Answer:

The area A of a parallelogram is given by the formula. A=bh. Over here, b is the length of one base and h refers to the height. Further, the perimeter of a parallelogram is the sum of the lengths of its four sides

Step-by-step explanation:

What does 5 18/12 convert to?

Answers

Answer:

6 1/2

Step-by-step explanation:

Joy has a ribbon that measures 16 yards. She cuts 9 pieces of ribbon to decorate gifts. Each piece of ribbon that Joy cuts measures 4 feet.

What is the length, in yards, of the remaining ribbon?

Answers

Answer:

4 yds

Step-by-step explanation:

So... 16 yards is 48 feet (because one yard is 3 feet so I just multiplied by 3)

and she cuts 9 pcs of ribbon each 4 feet

so it's 9 x 4 = 36

48 - 36 = 12

And 12 feet equals 4 yards

So, Joy has 4 yards of remaining ribbon

Answer:

9.3 yards

Step-by-step explanation: the exact answer is 9.3333333

Can someone help me answer these questions

Answers

12. I’m sorry I’m horrible at word problems
13. C
14. C

how to simplify 1.1(x+2)

Answers

Answer:

1.1(x+2) = 1.1x + 2.2

Step-by-step explanation:

I) Distribute the terms using the Distributive Property:

1.1(x+2)

= 1.1(x) + 1.1(2)

II) Simplify:

1.1(x) + 1.1(2)

= 1.1x + 2.2

1.1x + 2.2

How this helped :)

Determine the slope given two points. Point 1 (6,-12) Point 2 (15,-3

Answers

Answer:

slope is 1

Step-by-step explanation:

take the two ys and subtract and take the two xs and subtract and then put y/x

Hope this helps! :)

Answer:

1

Step-by-step explanation:

Use rise over run, (y2 - y1) / (x2 - x1)

Plug in the points:

(-3 + 12) / (15 - 6)

9 / 9

= 1

So, the slope is 1

I
T
4
2.5
4.8
3
2
K
1.6
X
J
Are the triangles similar?
[ Select ]
someone please help me !

Answers

Answer:

no triangle IJK is not similar to triangle TXZ bcoz sides are not proportionate

have a free brainliesttttttttttttttttttt

Answers

Ok me pls thank you so much you are a heavenly angel

omg thankss even thogh the brainliest goes to them

which decimal is equivalent to 0.50

Answers

Answer:

There is not another decimal equivalent to this but thre is fractions which your would be, 1/2 2/4

Factorise the following

Answers

Answer:

D

Step-by-step explanation:

First take out a factor of 2:

2(1 - 25x^2)

Then factor the difference of squares:

2(1 -5x)(1+5x)

-6/7 × (-3/8) answer?/

Answers

Answer:

Step-by-step explanation:

0.32142857142

Answer:

-6/7*-3/8= -18/56= -9/28

hope it is right answer for it!!

responda a expressão 2x+3x+5x:​

Answers

[tex]\tt{}2x + 3x + 5x[/tex]

[tex]\tt{}(2 + 3 + 5)x[/tex]

[tex]\tt{}10x[/tex]

Answer:

10x

Step-by-step explanation:

2x + 3x + 5x

Simplify the terms by subtracting or adding.

(2 + 3 + 5)x

Calculate the sum of positive numbers.

2 + 3 + 55 + 510x ✅

what is the distance in units between point A(5,-8) and point B(-2,4 on the coordinate plane

Answers

Answer:

13.89

Step-by-step explanation:

Answer:13

Step-by-step explanation:

Other Questions
When World War II ended in Europe in 1945, the victorious Allies, as part of the peace treaty, divided Germany into four partsone each for the United States, England, France, and Russia. The Soviet Union gained control of the eastern part of the country, while the other three Allied nations controlled the western part. (Eventually these sections became East Germany and West Germany, respectively.) This division of the country was also duplicated in the capital city of Berlin, with the Allied section in the western part of the city and the Soviet section in the east.The Dark Game,Paul JaneczkoUse the drop-down menus to answer questions about the first paragraph of the introduction to Chapter 5.What topic is being introduced?How does Janeczko introduce the topic in this paragraph? Choose the equation for the situation "a fraction f multiplied by 13 equals 29". A. 1f13=29 B. 3f=29 C. (f313)=29 D. 13f=29 Here is the API for a robot library. // moves the robot forward function moveForward(); // turns the robot to the left function rotateLeft(); // turns the robot to the right function rotateRight(); // checks if a robot can move in any direction // direction {string} - the direction to be checked // return {Boolean} - true if the robot can move in that direction, otherwise returns false function canMove(direction); Which code segment will guarantee that the robot makes it to the gray square without hitting a wall or a barrier (black square) Oleanders are decorative shrubs with beautiful flowers. What does it suggest to you about how ZNH sees herself and other African Americans living in Eatonville by describing them as Oleanders? Ron has a co-op in Henderson Cooperative. The total shares in the cooperativeare 50,000 shares. If Ron, owns 600 shares, what percentage of the cooperativecorporation does he own? What type of cellswould consumerscontain? List 3examples. A small mailbag is released from a helicopter that is descending steadily at 2.00 m/s. After 3.00 s. Required:a. What is the speed of the mailbag?b. How far is it below the helicopter? HELP HELP DUE in 11 ahahhajs Select the sentence which is correctly capitalized.Washington School is located on Main Street.Washington School is Located on Main Street.Washington school is located on Main Street.Washington School is located on Main street. Father, I come to you worn and weary from the hard times I have walked through recently. I come to you seeking your shelter where I know I can find security and rest in your shadow. Father, you are mighty. I know my circumstances are no match for Your great power. Father I place a healing of these people that they feel a conviction in there heart that they would turn from there wicked way and turn to you father. IN JESUS NAME AMEN Directions: Complete the following to form sentences.1. A nail care salon must be _________________ ______________________________________________. Type a story (130-160) that ends with the following sentence: I was exhausted, but relieved that I wasn't hurt. What are the two "theaters" of WWII?Which theater had more deaths for theUnited States? PLEASE HELPPP!!! I will mark you the BRAINLIEST 1) You can spend at most $24 at the fair. Gametickets cost $2 each, and ride tickets cost $4each. You want to buy at least 3 game ticketsand more than 2 ride tickets. Write a systemof linear inequalities that represents thesituation. How many of each ticket can youbuy? Define what it means for a source to be credible. Explain what details could suggest that a Web site is not a credible source. Your answer should be 1 to 2 sentences. I need help with number 15 please What is wrong with the equation below?|x|= -3 Plz help me I need a good grade on this There are three bulbs powered by a battery. What will happen if the middle light burns out.