simply the complex numbers: (2 + 5i)(1 – 3i)

Simply The Complex Numbers: (2 + 5i)(1 3i)

Answers

Answer 1

Answer:

17 just multiply the like dot product of vectors


Related Questions

hey! i’ll give brainliest please help

Answers

Answer:

B

Step-by-step explanation:

Can anyone help me solve a logarithm question?​

Answers

Answer:

[tex]x=1[/tex]

Step-by-step explanation:

Given equation in the question is,

[tex]\frac{2}{\text{log}_x(xy)}+\frac{2}{\text{log}_x(xy)}+3=5x[/tex]'

Since, [tex]\text{log}_a}(xy)=\frac{\text{log(a)}}{\text{log}(xy)}[/tex]

[tex]\frac{2\text{log}x}{\text{log}(xy)}+\frac{2\text{log}y}{\text{log}(xy)}+3=5x[/tex]

[tex]\frac{2(\text{log}x)+2(\text{log}y)}{\text{log}(xy)}=5x-3[/tex]

[tex]\frac{2[\text{log}(x)+\text{log}(y)]}{\text{log}(xy)}=5x-3[/tex]

[tex]\frac{2\text{log}(xy)}{\text{log}(xy)}=5x-3[/tex]

[tex]2=5x-3[/tex]

[tex]2+3=5x[/tex]

[tex]5x=5[/tex]

[tex]x=1[/tex]

HELP HELP ASAP PLEASE!!

Answers

Answer:

A has greater volume.

Greater by [tex]43in^3[/tex]

Step-by-step explanation:

[tex]volume \ of \ can = \pi r^2 h[/tex]

[tex]r_A = 3 in, \ h_A = 6 in\\Volume_A = \pi \times 9 \times 6 = 169.65 = 170 in^3\\\\\\r_B = 2.25in , \ h_B = 8\\Volume_B = \pi \times 5.0625 \times 8 = 127.23 = 127in^3[/tex]

HELP ASAP!!!
Mr. Watson earns more than $24 per hour. The inequality x greater-than 24 represents the situation. Which statement best represents the solutions of the inequality?

all rational numbers greater than 24
or
all whole numbers greater than 24

Answers

Answer:

all whole numbers greater than 24

Step-by-step explanation:

Ayaan does push-ups and sit-ups every morning. He does p push-ups and 2p + 5 sit-ups. Which statement describes the number of sit-ups Ayaan does every morning?

The number of sit-ups is 5 more than twice the number of push-ups he does.

The number of sit-ups is 5 more than half the number of push-ups he does.

The number of sit-ups is 5 fewer than twice the number of push-ups he does.

The number of sit-ups is 5 fewer than half the number of push-ups he does.

Answers

Answer:

A. The number of sit-ups is 5 more than twice the number of push-ups he does.

Step-by-step explanation:

Expressions:

p = push-ups done

2p + 5 situps = total situps

2p means that he does twice the amount of situps than he did as pushups.

+ 5 situps means that he does an extra 5 situps

Can I have help :< Im stuck and confused

Answers

Answer:

B (the one upper right)

Step-by-step explanation:

1. X is at most, something, so x is = or <

2. X is at most 500 more than twice y ---> (2y + 500)

3. X ≤ 2y +500

4. Profits will be over 22500, so 22500 is less (<) than profit

5. Square of profits are 35 times x and 50 times y

6. P^2 = 35x + 50y

7. P = Square-root of (35x + 50y)

8. 22500 < Square-root of (35x + 50y)

Answer is (3) and (8), which is B

Four friends, Abe, Bob, Carl, and Darrel, are going to a fun park .They want to ride go-karts. The price to ride the go-karts is $2.15 for 5 minutes,$4.00 10 minutes ,or $6.75 for 15 minutes .Which price is the best deal?Explain why? math question

Answers

Answer:

Since in this option the minute is paid at $ 0.40, the best option is 10 minutes for $ 4.

Step-by-step explanation:

Since four friends, Abe, Bob, Carl, and Darrel, are going to a fun park, and they want to ride go-karts, and the price to ride the go-karts is $ 2.15 for 5 minutes, $ 4.00 for 10 minutes, or $ 6.75 for 15 minutes, to determine which price is the best deal, the following calculations must be performed:

2.15 / 5 = 0.43

4/10 = 0.40

6.75 / 15 = 0.45

Therefore, since in this option the minute is paid at $ 0.40, the best option is 10 minutes for $ 4.

Jada's test scores were 80, 80, 82, and 86. Find the MEAN.

Answers

Answer:

82

Step-by-step explanation:

80+80+82+86

328/4

82

Answer:

82

Step-by-step explanation:

mean-the average of numbers in a data set

[tex]mean=\frac{80+80+82+86}{4}[/tex]

[tex]mean=\frac{328}{4}[/tex]

[tex]mean=82[/tex]

A company rents bikes. The price, p, in dollars, to rent a bike for h hours can be found using the formula p (h)= 14 + 3h. What is the price to rent a bike for 2 hours?​

Answers

$4 I got it right on a quiz

If the relation is given as p (h)= 14 + 3h. Then the price to rent a bike for 2 hours will be $20.

What is the linear system?

A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.

A company rents bikes.

The price (p) in dollars, to rent a bike for h hours can be found using the formula p (h)= 14 + 3h.

Then the price to rent a bike for 2 hours will be

p (h)= 14 + 3 x 2

p (h)= 14 + 6

p (h)= $20

More about the linear system link is given below.

https://brainly.com/question/20379472

#SPJ2

anyone wanna z00m? you have to make it tho.

Answers

This site is only for education related questions. You should only answer or ask questions. That's what we are here for. Whoever is reading this answer, please spread it to stop people from zooming, hurting others, posting non-related to education, or just communicating with others because this is not what Brainly is for. Thank you.

The ratio of numbers of Michael’s balloons to the number of Gareth’s
balloons is 5:9. Gareth has 63 balloons. How many balloons does
Michael have?
helppppppp!!!!!!

Answers

Answer:

Michael has 35 balloons.

Step-by-step explanation:

Write and solve an equation of ratios:

5       m

--- = -----

9     63

Cross-multiplication yields:

9m = 5(63), or

 m = 5(7) = 35

Michael has 35 balloons.

Help me with this pls!!!!!!

Answers

Answer:

Hi, so first we must find the constant, 56/8=7

So each pack of sugar can be used for 7 cups of coffee. Therefore:

first column: 5 ; 35

second column: 8 ; 56

third column: 10 ; 70

fourth column: 11 ; 77

PLEASE MARK BRAINLIEST THANKS

Nancy is making accessories for the soccer team. She uses 542.43 inches of fabric on headbands for 37 players and 4 coaches. She also uses 314.87 inches of fabric on wristbands for just the players. How much fabric was used on a headband and wristband for each player?

Answers

Answer:

21.74 inches of fabrics

Step-by-step explanation:

Headbands = 542.43 inches of fabric

37 players + 4 coaches = 41 people

Each person uses = 542.43 inches of fabric / 41 people

= 13.23 inches of fabrics for headband per person

wristbands = 314.87 inches of fabric

Players = 37

Each person uses = 314.87 inches of fabric / 37 players

= 8.51 inches of fabrics for wristband per person

How much fabric was used on a headband and wristband for each player?

Fabrics used on a headband and wristband for each player = 13.23 inches of fabrics for headband per person + 8.51 inches of fabrics for wristband per person

= 13.23 inches+ 8.51 inches

= 21.74 inches

Fabrics used on a headband and wristband for each player = 21.74 inches of fabrics

find the area of the figure with coordinates A (-6,1), B (2,1), C(-3,4), D(5,4)

Answers

Answer: The area of the figure is 24 units.

Step-by-step explanation:

After plotting, the given points on the graph, we can observe that it is a parallelogram(opposite sides are equal and parallel)

Height = 4-1 = 3 units

Base = 2-(-6) = 8 units

Area of parallelogram = Base x height

= 8 x 3 square units.

= 24  square units.

Hence, the area of the figure is 24 units.

Q2
The function R(t) = 50e -0.013t
models the number
of grams in a sample of radium after t years. On which
interval is the sample's average rate of decay the
slowest?
[0, 5]
[10, 20]
[25, 30]
[25,35]

Answers

Answer:

The interval [25, 35] has the slowest average rate of decay.

Step-by-step explanation:

The number of grams in a sample of radium is represented by the function [tex]r(t) = 50\cdot e^{-0.013\cdot t}[/tex], which is a monotonous decreasing function. Hence, the greater the values of [tex]t[/tex], the slowest the average rate of decay, represented by a secant line. The interval [25, 35] has the slowest average rate of decay.

What is the answe please help me

Answers

Answer:

Opcion C

Step-by-step explanation:

I think Maybe it could be

Solve please!! Please hurry this is due today!!

Answers

Answer:

X=2 and y=5

Step-by-step explanation:

5=-4+9 True

5=8-3   True

x = 2 and y = 5 !! :)

Factor the following, I will give 5 stars and thanks.

Answers

Answer:

17) [tex]k=-5,-6[/tex]

18) [tex]x=6,4[/tex]

19) [tex]k=-2,-6[/tex]

20) [tex]v=6,-3[/tex]

Step-by-step explanation:

17) The factor is (k+6)(k+5)
18) The factor is (x-4)(x-6)
19) The factor is (k+6)(k+2)
20) The factor is (y+3)(y-6)

i really need help with this question!! 10 points!

The radius of a circle is 18.4 inches. The circle's circumference is about ___ inches.

Use 3.14 for ​.

Answers

Answer:

115.552 or 116 inches

Step-by-step explanation:

circumference of a circle formula which is C= 2piR. Where C is circumference and R is radius. So you get C=2(3.14×18.4)

Need help ASAP and please don't be a scammer
Is this an enlargement or a reduction? How do you know?

Answers

Answer:

Reduction

Step-by-step explanation:

The resulting shape M'S'V' is smaller than the original shape MSV, so it is therefore classified as a reduction.

PLEASE THIS IS TIMED I REALLY NEED HELP AND BRAINLIEST!! :(
PLEASE ONLY PUT CORRECT ANSWER!! :)
answers :
10^21
10^42
24^21
24^42

Answers

Answer:

It is 24^21 without hesitation

Answer:

Quick 24^21 Go

Step-by-step explanation:

MORE MATH GENIUSES!!!!!!!!!!!!!!

Answers

Answer:

The friend caught the ball at 2 feet.

Step-by-step explanation:

1. False; the ball was not still in the air at 1 second the x-component of the vertex is 0.5.

2. False; the x-component of the vertex is 0.5

3. True; the ball was tossed at a height of 2 feet (when x=0, y=2), it is safe to assume the ball was caught at the same height.

4. False; when x = 0, y = 2.

Find the measure of the missing angle.
123*
HELP ASAP

Answers

Answer:

57 degrees

Step-by-step explanation:

A line is always 180 degrees so you just subtract 123 from 180 which is 57

different names were put into a hat. A name is chosen times and the name is chosen times. What is the experimental probability of the name being​ chosen? What is the theoretical probability of the name being​ chosen? Use pencil and paper. Explain how each probability would change if the number of names in the hat were different.

Answers

Answer:

the answer is 13/103

Step-by-step explanation:

Please help me as soon as you can

Answers

Answer:

1552.92

Step-by-step explanation:

Answer:

1552.92

Step-by-step explanation:

You can use this formula!!!

Are the arcs below congruent?
140"
G
B
A
140"
H
A. No, because the arcs do not have the same measure.
B. There is not enough information to determine.
C. Yes, because the arcs have the same measure.
D. No because the.arcs are not oriented the same.

someone helppp mee plss

Answers

Answer: B) Not enough info

While both arcs have the same degree measure (140 degrees), we don't have enough information about the radii. If the radius AO is the same length as radius OH, then the arcs are congruent. Otherwise, the arcs aren't congruent.

No, the arcs aren't congruent because the we don't know the size of both the circles, it is possible that one circle would be small and the other would have greater size than the first one, they only have same measure(140°) but not same size.

_______________

P.S- Refer the attachment, you will yourself understand what I'm trying to explain.

Which function is the inverse of
f(x)= x+4?
A. F'(x) = (x - 4)
B. F"(x) =-**-4
C. ('(x) = x3-4
D. f '(x) = 4 - x?
Help quick

Answers

It should be A. Hope this helps.

Answer:

x^3-4

Step-by-step explanation:

y = (x+4) ^ 1/3

Exchange x and y

x = (y+4)^1/3

Solve for y

Raise each side to the 3rd power

x^3 =  (y+4)^1/3 ^3

x^3 = y+4

Subtract 4 from each side

x^3 -4 = y+4-4

x^3 -4 = y

The inverse is

x^3-4

Hi can some one please help me !!!

Answers

Answer:

3

Step-by-step explanation:

What is the solution to the equation g(x+2) = 27? (1 point)
O x = 2.5
O x = 0.5
O x = -0.5
O x = -3.5

Answers

X= 2.5
Hope this helps !

find the missing term in the sequence 3 ,-1 ,- 5 ____ -13

a. -6
b. -7
c. -9
d. -11​

Answers

Answer:

C. -9

Step-by-step explanation:

The pattern is clearly subtracting 4 each time (or adding -4).

-5 - 4 = -9

the answer would be c.
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