Mathematics College

If A = 2 + 7i, B = 5 + 8i, and C = 1 + 3i , where i is the imaginary unit. Find B-AC, give your answer as a complex number in standard form.
Please give full answer

If A = 2 + 7i, B = 5 + 8i, And C = 1 + 3i , Where I Is The Imaginary Unit. Find B-AC, Give Your Answer

Answers

Answer 1

Answer:

24 - 5i

Step-by-step explanation:

GivenA = 2 + 7i B = 5 + 8i C = 1 + 3iTo findValue of B - AC in standard formSolutionB - AC =5 + 8i - (2 + 7i)(1 + 3i) =5 + 8i - 2 - 7i - 6i - 21i² =3 - 5i + 21 =24 - 5i

Related Questions

Find y. Please help!

If you’re good at this and would like to help me with my homework please comment!

Answers

Answer:

[tex]y\approx 11.9[/tex]

Step-by-step explanation:

Here, we have the known angle sandwiched between two known sides.

So, we have SAS.

And we want to find the side opposite to the angle.

Therefore, we can use the Law of Cosines:

[tex]c^2=a^2+b^2-2ab\cos(C)\\[/tex]

Again, it is important what we substitute.

a and b are the two side lengths. So, we will substitute 8 for a and 13 for b.

C is our angle. So, substitute 64 for C.

And c is what we’re trying to solve.

Therefore:

[tex]c^2=(8)^2+(13)^2-2(8)(13)\cos(64)[/tex]

Simplify:

[tex]c^2=64+169-208\cos(64)[/tex]

Add:

[tex]c^2=233-208\cos(64)[/tex]

Take the square root of both sides:

[tex]c=\sqrt{233-\cos(64})[/tex]

Use a calculator. So, c is approximately:

[tex]c\approx11.9[/tex]

The c is our y. So, y is approximately 11.9 units.

Can you someone help me

Answers

(6,8) is the answer also this could be the answer too (6,2)

hope this helps

Solve for x: (5 points)
E)
(-4/3)x-6=-26

A:27
B:-27
C:15
D:-15

Answers

(-4/3)x-6=-26
(-4/3)x=20
x = 15

Is 9x-3y=12 and 27x+9y=38 parallel or perpendicular

Answers

Answer:

1

Step-by-step explanation:

4x+3y=8
x-2y=-13
Find the coordinate where these two equations intercept.

Answers

La respuesta es a mi manera, cariño

4x≤12= I don't understand​

Answers

Answer:

x ≤ 3

Step-by-step explanation:

Just divide both sides by 4, the sign stays the same because you're dividing by a positive number

Answer:

its x ≤ 3

Step-by-step explanation:

              4x≤12

4x/4 ≤ 12/4 divide both sides by 4

that will give you x≤3.

So, that means x is less than or equal to 3.


Emily is entering a bicycle race for charity. Her mother pledges $1.50 for every mile. If Emily bikes 14 miles, how much will her mother donate?

Answers

Answer:

22.50

Step-by-step explanation:

if one mile is 1.50 then just do 1.50*14 which gives you 22.50

Which of the following shows the numbers in order of least to greatest? 0.9, -1.2, -1.3, 0.8
A. -1.3, -1.2, 0.8, 0.9
B. -1.2, -1.3, 0.8, 0.9
C. 0.8, 0.9, -1.2, -1.3
D. 0.9, 0.8, -1.2, -1.3

Answers

Answer: A

Step-by-step explanation:

Since -1.3 is the least, it comes first in least to greatest. The biggest negative numbers are the least.

Answer:

A. -1.3, -1.2, 0.8, 0.9

Step-by-step explanation:

If you know how the -'s are on the number line then you know that the further left you go the less they are so the further right you go on the number line the greater they get. So thats how i got my answer. Hope it helped you.

9. Evan's dog weighs 4 pounds. What is the weight of Evan's dog in ounces?

Answers

Evan's dog weighs 64 ounces

His dog weighs 64 ounces

Circle a has area 500 in the diameter of circle b is three times the diameter of circle a estimate the area of circle b

Answers

Answer: D=2r

Step-by-step explanation:

sorry if im wrong!

Answer:

D=2r i hope i aint wrong

Step-by-step explanation:

Instructions: Perform the given operation for the two stated functions. Type your answer in the space given. Remember to use the appropriate format, and do not use spaces.

f(x)=−x+4

g(x)=x−5

Find: f(x)+g(x)

Solution:

Answers

Answer:

-1 because when you add both functions thats what you get.

The sum of the functions f(x) and g(x) is -1.

What is a function?

A function is a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output. A common notation for a function is "f(x)," where x denotes the input value. Example: f(x) = x/2.

What will be the sum of given functions?

Add both the functions as,

f(x)+g(x)=-x+4+x-5

Collect the like terms of right side,

f(x)+g(x)=-1

Therefore, the sum of the function f(x) and g(x) is -1.

Learn more: https://brainly.com/question/11624077

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Which expression is equivalent to 2x4y+5xj2 - 3x373 ?
O xy(2x+3y)(x - y)
O xy(x+3y)(2 - y)
O 1(2x - 3(x2+x2)
O x23(2x - y)(x + 3y)

Answers

it think is the letter C

A donut shop offers a discount on purchase of donuts that total mare than 10 times

Answers

Answer:

where is the rest of the question

Step-by-step explanation:

Ali is making pottery. He uses 3/8 of a 2-pound bag of clay to make a set of bowls. Each set has 4 bowls. Drag one expression next to each question. The correct expression for each row is a way to answer that question.

Answers

Answer:

Part A. 2 x 3/8

Part B. 2 x 3/8 / 4

Step-by-step explanation:

Answer:

Part A. 2 x 3/8

Part B. 2 x 3/8 / 4     simple

Step-by-step explanation:

Is the answer I choose right and if not please tell me what it is Nd Please tell me how to show the work also !

Answers

Answer:

yes

Step-by-step explanation:

yes the answer you chose is correct

What is the zero of r(x) = 5x - 3? HELPPPP PLEASEEE​

Answers

A zero is when y=0.

0=5x-3

3=5x

3/5=x

X=3/5

What is between tenths on a number line?

Answers

Answer:

One twentieths (if you're asking for numbers smack dab between two tenths numbers) or anything with a denominator above or equal to eleven (if you're just talking about any number between two tenths numbers.

Step-by-step explanation:

Hope this helped!

find a real number between -√9 and √25.
a.-4
b.1
c.-5
d.6

Answers

Answer:

-5 is the answer

Step-by-step explanation:

c is the answer

Answer:

b) 1

Step-by-step explanation:

1 * 1 = 1

And 1 is a real number.

If my answer helped, kindly mark me as th ebrainliest!!

Thank You!!

HELPPPP ASAPP PLZZ
John goes out to eat at a local restaurant. The bill comes to $47.83. John want to leave a 20% tip. How much of a tip should he leave? (use only numbers) $___-

Answers

Answer:

57.40

Step-by-step explanation:

$47.83 + $9.57 = $57.40

Answer:

27.83

Step-by-step explanation:

like 20 percent off of 80$ is 60 so you would have to minus it by 20 would get you to 27.83$

Which diagram represents the hypothesis of the converse of corresponding angles theorem?

Parallel lines m and n are cut by a transversal. The angles at the top right of both intersections are congruent.

Parallel lines p and q are cut by a transversal. The angles at the top left of the intersection with the first line and the bottom right of the intersection with the second line are congruent.

Parallel lines x and y are cut by a transversal. The angles at the bottom left of the intersection with the first line and the top right of the intersection with the second line are congruent.

Answers

Answer:

A

Step-by-step explanation:

Got it right on edge

Answer:

A

Step-by-step explanation:

Got it right

Item 19
Question 1
A person hikes 4 miles in 2.5 hours. Find the unit rate in miles per hour.








































A person hikes 4 miles in 2.5 hours. Find the unit rate in miles per hour.

Answers

Answer:

Its 24

Step-by-step explanation:

im not sure

Toby, Kate, and Jim had a challenge to see who could run the farthest in a month. Toby ran 12 miles. Kate ran 6 times as many miles as Toby, and Jim ran 2 times as many miles as Kate. How many miles did Jim run?​

Answers

Answer:

Jim ran 144 miles

Step-by-step explanation:

Since Kate ran 72 miles (12x6), Jim ran 144 miles (72x2)

Teresa went to a bakery to buy bagels. Each bagel at the bakery was the same price. Teresa paid $5.00 for 4 bagels.

Answers

Answer:$1.25 per bagel

Step-by-step explanation:

5/4=1.25

The cost of each bagels is $1.25.

What is the unitary method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given that, Teresa went to a bakery to buy bagels.

Teresa paid $5.00 for 4 bagels.

Cost of each bagel = Total cost/Number of bagels

= 5/4

= $1.25

Therefore, the cost of each bagels is $1.25.

To learn more about the unitary method visit:

brainly.com/question/22056199.

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Write 171 miles in 3 hours as a unit rate

Answers

Answer:

The answer as a unit rate would be 57.

Step-by-step explanation:

57 is correct because to find the unit rate do 171 divided by 3 to equal 57 which is the unit rate.

Hope it helps, have a good day!

What is the answer
A.
B.
C.
D.

Answers

Answer:

B.

Step-by-step explanation:

The opposite of 5/2 is -5/2 which is -2 1/2 and the opposite of -1/2 is 1/2.

100 Ponts!!!! please help! ...........points E, D, and h are the midpoints of the sides of △tuv. uv = 94, tv = 122, and hd = 94. find the perimeter of △hed.

Answers

Answer:

i think it is 170 units

Step-by-step explanation:

Answer:

n

Step-by-step explanation:

Please helppp.....What’s 38.4888 to two significant figures

Answers

Answer:

38

Step-by-step explanation:

Could u help me with this I got stuck and I don’t know how to finish

Answers

Answer:

10

Step-by-step explanation:

The IQR is the width of the box of the box plot. The box runs from 20 to 30, so its width is 10.

Answer:

I think it is either a or d but i am probably wrong i wanted to help you but i dont know if i will get that right or not

Step-by-step explanation:

True or false
-y = -112 + 4; (0, -4)

Answers

Answer:

False

Step-by-step explanation:

A turtle is 2056 inches below the surface of a pond. It dives to a depth of 3214 inches. What is the change in the turtle’s position? Write your answer as a mixed number.

The change in the turtle's position is
inches.

Answers

Answer:

-11 5/12

Step-by-step explanation:

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