Simplify the expression: (5 − 4i)(6 − 2i).

38 − 34i
22 − 34i
38 − 20i
22 − 20i

Answers

Answer 1

Answer:

22 - 34i

Step-by-step explanation:

(5-4i)(6-2i)

FOIL -> 30 - 10i - 24i - 8

22 - 34i


Related Questions

Tell how the following terms are alike and different: Discount, Tax, and Tip

Answers

Answer: They are all alike in how they change the price either increase or decrease it and difference is that some increase and some decrease.

Step-by-step explanation: Hope this was helpful :)

___ + 142 + 308 = 450

Answers

Answer:

it would be 0 cause 142 and 308 already equal 450

Step-by-step explanation:

Answer:

0

Step-by-step explanation:

450 - (142 + 308) = 0. ) is the answer.

Hope it helps!

Help on this math problem pls!

Answers

Answer:

y=5

Step-by-step explanation:

x+3=2x+1

x=2

y=2+3

y=5

help me for brainlist

Answers

Answer:

1. g. $0.10 per square inch

2. b. $0.08 per square inch

3. f. $10

4. m. $8

5. h. 79 in²

6. j. 113 in²

Step-by-step explanation:

1. A = πr²

  r = diameter ÷ 2 = 10 ÷ 2 = 5

  A = π(5)² = 25π in² ≈ 78.53981

  $8.00/25π = $0.10 per square inch

2. A = πr²

  r = diameter ÷ 2 = 12 ÷ 2 = 6

  A = π(6)² = 36π in² ≈ 113.0973355

  $10.00/36π = 0.088419 = $0.09 per square inch

3. information/answer was provided

4. information/answer was provided

5. A = πr²

  r = diameter ÷ 2 = 10 ÷ 2 = 5

  A = π(5)² = 25π in² ≈ 79 in²

6. A = πr²

  r = diameter ÷ 2 = 12 ÷ 2 = 6

  A = π(6)² = 36π in² ≈ 113 in²

Evaluate 64 = (15 – 7) x 2 - 9.

Answers

Answer:

No solutions.

Step-by-step explanation:

We need to use PEMDAS to solve this problem, and as the first letter in PEMDAS stands for (parentheses) we should subtract 7 from 15 to get 8.

Secondly, we would multiply 2 by 8 to get 16.

Finally, we subtract 9 from 16 to get 7.

64 ≠ 7, so the answer would be no solutions.

Determine the value for b assuming that the two horizontal lines displayed are parallel.

Answers

Answer:

29

Step-by-step explanation:

The value of b by assuming that the two lines are parallel will be equal to 29°.

What is an angle?

When two lines converge at a point, they produce an angle. The word "angle" refers to the length of the "gap" between these two rays. The symbol is used to denote it.

Radians, a unit of roundness or rotation, and degrees are the 2 most common units used to measure angles. In daily life, angles are present.

As per the given information provided by the given figure,

The angle is corresponding in nature,

So, the equation will be,

3b + 5 = 92

3b = 92 - 5

3b = 87

b = 87/3

b = 29°.

Therefore, the angle b is 29°.

To know more about angles:

https://brainly.com/question/28451077

#SPJ2

Simplify:
13y + (-4) + 7

Answers

Answer:

13y+3

Step-by-step explanation:

cancel out the negative 4

13y+3, I used photomath, I know it is right tho

Simlify the expression 4^3 +(3 - 2).

Answers

Answer:

The answer is 65

Step-by-step explanation:

3-2 = 1

4^3 = 64

64+1 = 65

Hope this helps.

Answer:

[tex]65[/tex]

Step-by-step explanation:

Firstly, you have to Simplify what's inside the parentheses.

and that is 3-2 = 1.

[tex] {4}^{3} + 1[/tex]

Secondly, you have to Simplify 4³ to 64. 4 to the power of 3 is 64.

[tex]64 + 1[/tex]

And lastly, you have to simplify 64 + 1. which is.

[tex]65[/tex]

Therefor, the answer is, 65.

which equation represents the inverse of f(x)=(x+3)^2+5 for x ≤-3

Answers

Answer:

f(x)=(x+3)^2+5

let f(x)=y

y=(x+3)^2+5

interchanging role of x and y

x=(y+3)²+5

x-5=(y+3)²

√(x-3)-3=y

y=√(x-3)-3

:.inverse of f(x)=(x+3)^2+5 is f-¹(x)=√(x-3)-3

What is the equation of the graph?

Answers

Is the first one 1 A the first one the first one

Plz help. Will give brainliest

Answers

Answer:

So is there are 10 cats for every 4 dogs,

If there are 5 cats that is half of 10 so half of 4 is 2

Now there are 32 dogs that is 8 times more than 4 so 10 x 4 is 40 so the answers are

Cats    10     5     8

Dogs   4     2     32

Plz give brainiest

question 2 on plato geometry 2 70 points
To explore relationships among the sides and angles, move points B and C so that m∠CFB equals 45°, 50°, 60°, and 75°, successively. Measure the values listed in the tables to two decimal places. (It’s acceptable if the radius of the circle changes as you move B and C.)
picture below

Answers

Answer:

m∠CFB   m∠CAB   m∠EAD  m ∠CAB + m∠EAD

45°              19.93°               70.07°                     90°

50°              29.91°              70.09°                    100°

60°              49.92°             70.08°                    120°

75°              79.92°             70.08°                    150°

m∠CFB  BF  CF     DF  EF  BF + DF  CF + EF   BF × DF    CF × EF

45°     2.69 2.74    9.09     8.91    11.78    11.65    24.45     24.41

50°      3.7 3.63   8.07     8.23    11.77    11.86    29.86     29.87

60°      5.35 4.72    6.42     7.28    11.77    12.00    34.35     34.36

75°     7.3   5    4.47     6.52    11.77    11.52    32.63     32.6

Step-by-step explanation:

edmentum

Answer:

PLATO

Step-by-step explanation:

(-a - b)x = 3a +3b.

Answers

Given:

The equation is

[tex](-a-b)x=3a+3b[/tex]

To find:

The value of x.

Solution:

We have,

[tex](-a-b)x=3a+3b[/tex]

It can be written as

[tex]x=\dfrac{3a+3b}{(-a-b)}[/tex]

[tex]x=\dfrac{3(a+b)}{-(a+b)}[/tex]

Cancel out the common factors.

[tex]x=\dfrac{3}{-1}[/tex]

[tex]x=-3[/tex]

Therefore, the value of x is -3.

4/5 in decimal form?

Answers

Answer:

0.8 or 0.80

Step-by-step explanation:

4/5 in decimal form is 0.8

Jose is saving money for a skateboard. His aunt gives him $45 to start with, and he saves $3 each week. The expression 45 + 3w gives the amount of money Jose saved after w weeks. Osvaldo Matthew Part A) How much money will Jose have saved after 4 weeks? Part B) After 20 weeks, can Jose buy the skateboard? Explain why he can or why he cannot. 2.)Evaluate if k=8 and v=5. 6(5v - k)/2

Answers

Answer:

After 4 weeks, he will have $57

After 20 weeks, he will have $105

Step-by-step explanation:

6(5v - k) / 2

6(5(5) - 8) / 2

6(17) / 2

102/2 = 51

Answer: below

Step-by-step explanation:

Part A)  After 4 week he will have saved ... (45+3x4= $57)... 57 dollars

Part B) After 20 weeks... (45+3x20= 105)... i dont know if he can buy the skate board bc you never said how much the skateboard cost.

2. 6(5v-k)/ 2

6(25-8)/2

150-48/2

102/2 = 51

PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELPPPPPPPPPPPPPPPPP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE I DO ANYTHING JUST HELP



A shelf at a bookstore displays 30 books. Of these 30 books, 10 of the books are nonfiction books. The store owner adds 4 new fiction books to the shelf and wants the ratio of fiction books to nonfiction books to remain the same. What is the total number of nonfiction books that the store should display, after the new fiction books are added?

Answers

Answer:

2 he needs to add 2 to keep the ratio the same, the total would be 12

Step-by-step explanation:

before he adds the book the ratio is 2:1 (fiction to non-fiction) and he add 4 to the fiction so he needs to add 2 non-fiction books because this ration means fiction/2 = non-fiction so 4/2 = 2

hope this helps have a blessed day :)

please guys or girls I really need help for this question im failing math

Answers

It’s proportional it’s equation it y=3.5x

Answer:

Yes it is proportional (Equation: y=3.5x)

Step-by-step explanation:

Notice that there is a constant change in y and a constant change in x. But by how much? Given the last point (13,45.5) we can see that 13-12=1 and 45.5-42=3.5 so that means as x increases by 1, y always increases by 3.5, making the relationship proportional. You can also write the equation y=3.5x to show this

Please answer I need it asap please

Answers

Answer:

25.612

Step-by-step explanation:

[tex]\sqrt{20^2+16^2\\}[/tex]= 25.612

The temperature in the morning is 18.6°C. By noon the temperature rises 8.5°C.

What is the temperature at noon?

Answers

Answer: 27.1

Step-by-step explanation:

18.6 + 8.5 = 27.1 hope it helps

Answer:

27.1

Step-by-step explanation:

18.6 + 8.5 = 27.1

Hope this helps :))

evaluate 16 3/4
nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

Answers

Answer:

16.75

Step-by-step explanation:

Solve for w
-4(2+1) = -24

Answers

Answer:

-12 = -24

Step-by-step explanation:

Answer:

w  = -12

-12 = -24

Step-by-step explanation:

Solve for  w  by simplifying both sides of the equation, then isolating the variable.

Find the area of this circle. Use 3 for T.
A = ar2
1 ft
[?] ft2

Answers

3 ft^2

A= 3(1)^2
A=3•1
A=3

I need help please it will be really helpful!

Answers

Answer:

yes sir burrito

Step-by-step explanation:

Each exterior angle of a triangle has three remote interior angles.

Answer: False

Answers

False hiiiiiii guysssssss

-4x+ 8x2 – 2x3 + 5
this is algebra

Answers

Answer:

-65

Step-by-step explanation:

use Khan academy it's very helpful

Answer:

14x+5

Step-by-step explanation:

4x+8x2-2x3+5

⬇️Simplify (for example 8x x 2 = 16x)

4x+16x-6x+5

⬇️ Collect like terms (bold)

20x-6x+5

⬇️

14x+5

In which triangle is cos x = 5/8?

Answers

Answer:

triangle D............

Triangle B

[tex]cos \: x= \frac{adj}{hyp} = \frac{5}{8} [/tex]

If you need, always label your triangles!

Solve the system by substitution.
-2x-10y=-2
-4y=x

Answers

maybe xd ad something else please

what is 2 2/5 divided by 1/3

Answers

Answer:

0.2 in decimal form

Step-by-step explanation:

2/5 ÷ 2 = 2/10 as simplified as 1/5 in fraction form. 2/5 ÷ 2 = 0.2

Find x if 4x/5 =20. x =?

Answers

Answer:

25

Step-by-step explanation:

4 times (x-25)=0

Ethan reads 330 pages in 3/4 hour. How many pages does he read per hour?

Answers

Answer:

440

Step-by-step explanation:

330 divided by 3 times 4 is 440 and thats your answer.

Answer:  440  pages per hour

====================================================

Work Shown:

330 pages = 3/4 hour

4*(330 pages) = 4*(3/4 hour)  ........ multiply both sides by 4

1320 pages = 3 hours

1320/3 pages = 3/3 hours ...... divide both sides by 3

440 pages = 1 hour

Ethan's rate is 440 pages per hour.

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