Mathematics High School

Which expression is equivalent to (9 + 3i) - (-4 + i)?
A. 5 + 2i
B. 5 + 4i
C. 13 + 2i
D. 13 + 4i

Which Expression Is Equivalent To (9 + 3i) - (-4 + I)?A. 5 + 2iB. 5 + 4iC. 13 + 2iD. 13 + 4i

Answers

Answer 1

Answer:

c.

Step-by-step explanation:

from the expression (9 + 3i) - (-4 + i);

STEP 1: multiply (-4 + i) by the minus sign before it.

we have +4 - i as the result.

we are left now with:

9+3i+4-i.

STEP 2: grouping those with same values,

9+4+3i-i= 13+2i

Which Expression Is Equivalent To (9 + 3i) - (-4 + I)?A. 5 + 2iB. 5 + 4iC. 13 + 2iD. 13 + 4i

Related Questions

Find the surface area!
Thank you!!

Answers

Answer:

[tex]SA= 720 m^2[/tex]

Step-by-step explanation:

[tex]x=\sqrt{5^2+12^2}=13m[/tex]

[tex]AS=2*1/2*12+12*22+5*22+13*22[/tex]

[tex]= 60+264+110+13*22[/tex]

[tex]AS= 720m^2[/tex]

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hope it helps...

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Answer:

SA=720m^2

Step-by-step explanation:

hope it helps you ..

The diameter of a circle is 11 ft. Find its area to the nearest tenth.

Answers

Answer:

95.0 ft²

Step-by-step explanation:

r = d/2

r = 11/2

r = 5.5

Area of circle formula

a = πr^2

a = π (5.5)²

a = 3.14 * 30.25

a = 94.985

Rounded

a = 95.0

I'm not sure if it's correct but it might 95.03^2ft


What value of x will make x1/4=3 true?

Answers

X=12 I believe because 4x3x1=12

Answer:

okay so, x would be 12

Step-by-step explanation:

( if you ever see p5 (or any other variable) then that’s means you gotta multiply, so maybe imagine it like px5, p5 would just be a easier way.)

1. x times 1 divided by 4 is 3, a simpler way to put it!

x would be 12 since 12x1 is 12

2. We divide 12 by 4 which gives us a total of 3

hope this helped!

HELP ASAP, LINKS AND ABSURD ANSWERS WILL BE REPORTED! I WILL MARK BRAINLIEST!!

Answers

Answer:

1⅕

Step-by-step explanation:

it shows a whole box filled so that means it's a whole

the next box only has one out of five filled so it's ⅕

1⅕

PLEASE HELP ME WITH THIS

Answers

Answer:

y<5

Step-by-step explanation:

dotted line so it's <. The original equation without inequality is y=5.

hope this helped.

Which statement correctly describes the expression (-15)3?
A. One factor is positive and one factor is negative, so the product
will be negative
B. Both factors are positive, so the product will be positive.
C. One factor is positive and one factor is negative, so the product
will be positive.
D. Both factors are negative, so the product will be positive.

Answers

The answer is A.

-15 is a negative factor

3 is a positive factor

When a negative and positive is multiplied it produces a negative answer

please help me with my maths prep...........

Answers

Answer:

uumm

Step-by-step explanation:

The table shows the number of tickets sold and the profit made at the fundraiser

2 $18
4 $36
6 $54
8 $72

Which describes the relationship between the number of tickets sold and the profit

Each ticket sold yields $8 of profit
Each ticket sold yields $9 of profit
Each ticket sold yields $16 of profit
Each ticket sold yields $18 of profit

Answers

Answer:

first one is The table shows the number of tickets sold and the profit made at a fundraiser. Tickets Sold Profit

2 $18

4 $36

6 $54

8 $72

Which describes the relationship between the number of tickets sold and the profit?

Each ticket sold yields $8 of profit.

Each ticket sold yields $9 of profit

. Each ticket sold yields $16 of profit.

Each ticket sold yields $18 of profit.

Step-by-step explanation:

done

Answer:

b

Step-by-step explanation:

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Answers

Answer:

a, d

Step-by-step explanation:

A factory makes 1,200 shirts every 6 hours. The factory makes shirts for 9 hours each workday. How many shirts does the factory make per hour? shirts per hour How many shirts does the factory make per workday (9 hours) ? shirts per workday How many workdays will it take to make 12,600 shirts? workdays

Answers

Answer:

they make 200 per hour and 1800 every 9 hours and it would take 7 workdays to make 12,600

Step-by-step explanation:

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Answers

Answer: Table H would be the correct answer;

The rule of a function is that for each x-value given there can't be more than 1 y-value

In Table F:

x = -13, then y = -2

x = -13, then y = 0

x = -13, then y = 5

x = -13, then y = 7

For the x-value -13, there are 4 different y-values, so it's not a function.

In Table G:

x = -6, then y = 3

x = -1, then y = -1

x = -1, then y = 5

x = 10, then y = -9

For the x-value -1, there are 2 different y-values, hence this isn't a function.

In Table H:

x = 1, then y = 4

x = 3, then y = 4

x = 7, then y = 4

x = 12, then y = 4

For each x-value, there is only 1 y-value, so this is a function.

In table J:

x = -9, then y = -7

x = -2, then y = -5

x = 0, then y = 0

x = 0, then y = 6

For the x-value 0, there are 2 different y-value therefore this isn't a function

Hope this helps!

PLEASE HELP ME I AM BEING TIMED, I WILL MARK BRAINLIEST FOR WHOEVER GETS THIS RIGHT, WITH AN EXTRA 10 POINTS.

Answers

Answer:

Yes table 1 is

not proportional for table 2

Step-by-step explanation:

6 for table 1

nothing for table 2

Use the data set and line plot below. How many feathers are


2


1


4


inches or shorter?



A data set titled



A line plot named



A.


8



B.


12



C.


15



D.


5

Answers

Answer:

The answer is B

I hope help you

Answer:

the correct answer for this equaction is B i think hope this helps!..

Step-by-step explanation:

Can you help there is not an answer choice

Answers

Answer:

-3[tex]\frac{43}{72}[/tex]

Step-by-step explanation:

chage the proper fraction to improper and then multiply

Exact Form: − 259/72

Decimal Form: − 3.5972

Mixed Number Form: − 3 43/72 (answer)

How to:

Simplify the expression.

Have a great day and stay safe !

Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

Answers

Answer:

BC≈1.71

Step-by-step explanation:

The cosine of an angle is the adjacent side relative to that angle divided by the hypotenuse.

cos(70)=BC/5

BC=cos(70)*5≈1.71

1) Analyze the equation: y = 5x + 10 What is the y-intercept? *
5
-5
10
-10

Answers

Answer:

10

Step-by-step explanation:

Plug in x=0

5(0)+10

0+10=10

Answer:

y=10

Step-by-step explanation:

First, you have to substitute x=0

y=5 x + 10

y=5 x 0 + 10

Solve the equation for y

y=10

is this equation have a solution or not
y = [tex]\frac{3}{4}[/tex] x
3x - 4y = 0

Answers

Answer:

No solution.

Step-by-step explanation:

y + 3x - 4y = 0 + 0.75x

- 3y + 3x = 0 + 0.75x

- 3y + 3x - 0.75x = 0 + 0.75x - 0.75x

- 3y + 2.25x = 0

If you place a 32-foot ladder against the top of a building and the bottom of the
ladder is 24 feet from the bottom of the building, how tall is the building? Round to
the nearest tenth of a foot.
Please respond ASAP

Answers

Answer:21.2

Step-by-step explanation:

delta math

cual es el resultado de a+8 =12

Answers

Answer:

a+8=12

a=12-8

a=4 (cuatro)

Step-by-step explanation:

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

The amount that a craftsman will charge for an item depends on the
amount that he spends on materials, m, and is determined by the
equation a = 2.5 + 2.5m, where a is the amount charged for each
item. What is the value of the dependent variable, if the value of the
independent variable is 3?

Answers

Answer:

$10

Step-by-step explanation:

m is the independent variable, and a the dependent one.

If m = 3, a = 2.5 + 2.5(3) = 10

The craftsman charges $10 when m = 3.

if 5a + 9 = 5 + 3a, then 2a=​

Answers

Step-by-step explanation:

5a+9=5+3a

2a=-4 is the required value

mops and buckets are sold in a shop. 9 mops cost £72. the ratio of the cost of a mop to the cost of a bucket is 4:7. work out the cost of 6 buckets​

Answers

Answer: 52 pound because if it’s 4:7 7 add 4 = 11 divide that by 72 gets you 52

The price of an item has been reduced by 20%. The original price was $20. What is the price of the item now?

Answers

Answer:

what type of work is this?

Every morning Nora makes five gallons of her refreshing lemonade. Each order of lemonade is exactly one cup.

How many cups of lemonade can she sell each day before she runs out?

Answers

Answer:

80 cups

I had writtened 80 cups then thought i was wrong.

sorry.

Step-by-step explanation:

Answer:

Step-by-step explanation:

16 US cups are in 1 US gallon. So 16x5 =50

If D E F is similar to A B C, what is the similarity ratio of Triangle D E F to triangle A B C? Triangles A B C and D E F. Side A B is 8, B C is 6, and A C is blank. Side D E is 12, E F is 9, and D F is blank. a. 3:2 c. 3:4 b. 2:3 d. 4:3 Please select the best answer from the choices provided A B C D

Answers

Answer:

A 3:2

Step-by-step explanation:

Answer:

A 3:2

Step-by-step explanation:

Is 7 a factor of 34q+ 37r?

Answers

Umm factors of 34 are 1.2.17.34 amd 37 factories are 1:37

Answer:

no

Step-by-step explanation:

In the figure shown above, all the comers form right angles. What is the area of the figure in square units?

A. 31 square units

B. 62 square units

C. 102 square units

D. 120 square

Answers

Answer:

D. 120 squared

Step-by-step explanation:

102 would be correct because of how the areas are added into .

can ace and expert help me​

Answers

Answer:

D

Step-by-step explanation:

math also i gtg cya :D

? Help me plzzz correct answer gets brainliest

Answers

Answer:

B?

Step-by-step explanation:

im s0rry im n0t sure

In a certain Algebra 2 class of 30 students, 7 of them play basketball and 15 of them
play baseball. There are 10 students who play neither sport. What is the probability
that a student chosen randomly from the class plays basketball or baseball?

Answers

Answer:

P=2/3

Explanation:

since there are 10 students who play neither sport over 30, this means 20 students play basketball or baseball or both! (among them 2 students who play both basketball and baseball)

∴ the probability that a student chosen randomly from the class plays basketball or baseball is 20/30 and that equals 2/3 or 66.66%

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