( 5 - 2i)2 Write answer in standard form a +bi. Remember you can not have i2 in your answer it is a number.

Answers

Answer 1

Answer:

Step-by-step explanation:

(5 - 2i)^2

25 - 10i - 10i + 4I^2

25 -20i - 4

21 - 20i


Related Questions

Help please I am confused?

Answers

Answer:

Given m∠RST = (15x - 10)o

Using angle addition postulate:

m∠RST = m∠RSP + m∠PST (15x - 10)= (x + 25)+ (5x + 10)(15x - 10)=

so your answer would be (6x+35)

Step-by-step explanation:

22/44 rational or irrational?

Answers

rational. 22/44 can be simplefied to 1/2 and 1/2 is rational.

Answer:

RATIONAL NUMBER

Step-by-step explanation:

22/44=2/4

IT IS IN THE SIMPLEST FORM AND IN THE FORM OF P/Q where as q is not equal to 0.

What is the equation of a sine function with an amplitude of 2 and a period of 4

Answers

Answer: C

Step-by-step explanation:

For this problem, we need to know the standard form of a sine function and the meaning of each part.

Standard form: [tex]y=asin[b(x-h)]+k[/tex]

a=amplitude

b=period

h=phase shift

k=vertical replacement/shifting

Now that we know the standard form and the components, we know that we can forget about k and plug in 0 for h. This would leave us with [tex]y=asin[b(x)][/tex]. We know that the amplitude is 2, therefore, a=2. To find the period, you divide 2π by the given period. [tex]\frac{2\pi }{b} =\frac{2\pi }{4\pi } =\frac{2}{4} =\frac{1}{2}[/tex], therefore, b=1/2.

[tex]y=asin[b(x)][/tex]             [plug in a=2]

[tex]y=2sin[b(x)][/tex]             [plug in b=1/2]

[tex]y=2sin(\frac{1}{2}x)[/tex]

Therefore, C is the correct answer.

Is the ordered pair (-3,2) a solution to the equation 5x + 2y = -11

Answers

Step-by-step explanation:

(-3,2) is equal to (x,y)

x=-3 so 5x becomes 5x-3.

5x-3=-15

y=2 so 2y becomes 2x2.

2x2=4

-15+4=-11

T/F

True

So the answer is Yes, the ordered pair (-3,2) is a solution.

hope it helps!

Study the graphs of f(x) and g(x). Which statement describes g(x) as a transformation of f(x) and identifies an equation for g(x)?

Answers

Answer:

D

Step-by-step explanation:

-55÷12 = 7÷4m + 8÷3m what is m

Answers

Answer:

[tex]m=-\frac{53}{55} \\m=-0.963[/tex]

Step-by-step explanation:

Rewrite Equation.

[tex]7/4m+8/3m=-55/12[/tex]

Simplify.

[tex]\frac{53}{12m} =-55/12[/tex]

Simplify.

[tex]\frac{53}{12m} =-\frac{55}{12}[/tex]

Multiply the numerator of the first fraction by the denominator of the second fraction. Set this equal to the product of the denominator of the first fraction and the numerator of the second fraction.

[tex]53*12=12m*-55[/tex]

Simplify & Answer:

[tex]m=-\frac{53}{55}[/tex]

NEED HELP ASAP!!! name each angle in as many ways different as possible

Answers

JGL,LGJ, GJ, GL are the four angles

Evaluate. 5(-6)

Helppp

Answers

Step-by-step explanation:

-30

multiply you'll get a negative number

What is the related rate of the ratio 90 to 3?

Answers

Answer:

30:1

Step-by-step explanation:

90:3

90÷3=30

3÷3=1

=30:1

Please explain how this diagrams works

Answers

Answer:

x = 21°

Step-by-step explanation:

opposite angles are equal

therefore, (3x + 1)° = 64°

open the brackets

3x + 1 = 64

3x = 64 - 1

3x = 63

divide both sides by 3

x = 21°

What is the meaning of the expression (4 + 5) x 2?

Answers

Answer:

18.

Step-by-step explanation:

4+5 is 9, and 9 times 2 is 18

The answer is 18 if that’s what your asking
Tip: use bedmas for similar equations
B- brackets
E- exponents
D- division
M- multiplication
A- addition
S- subtraction
(It’s the order in which you should solve)

Describe and correct the error a student made when naming the polynomial

-2x3 + 5x4 - 3x is a

cubic trinomial

+

Choose the correct answer below

O A. The student did not put the polynomial in ascending order of the degrees of the terms before naming it by the first term. It is a linear trinomial.

O B. The student did not combine like terms before naming the polynomial. It is a degree-8 polynomial.

O C. The student did not put the polynomial in standard form before naming it by the first term. It is a fourth-degree trinomial.

OD. The student did not put the polynomial in standard form before naming it by the first term. It is a quadratic trinomial.

Answers

Answer:

C. The student did not put the polynomial in standard form before naming it by the first term. It is a fourth-degree trinomial.

Step-by-step explanation:

A trinomial is a polynomial with three variables. The polynomial -2x³ + 5x⁴ - 3x has three variables hence it is a trinomial.

The degree of a polynomial is the highest degree of a variable in a polynomial equation.

The polynomial -2x³ + 5x⁴ - 3x can be arranged as The polynomial 5x⁴ - 2x³ - 3x, hence the variable with the highest degree is 5x⁴ which has a degree of 4.

Therefore The polynomial -2x³ + 5x⁴ - 3x  has a degree of 4

This means the polynomial -2x³ + 5x⁴ - 3x is a trinomial with a degree of 4

I need help on this question

Answers

Answer:

If they are the same size and length

Step-by-step explanation:

Angles are congruent if ,and only if ,they have the same measure.

Hope it helps.

Mr. Yi buys vegetables at a market. He purchases 6 pounds of potatoes, p, and 3 pounds of onions, n, for $18. Onions cost twice as much as potatoes. To determine the unit price for each item, his daughter sets up and solves the system of equations shown.

answers: 1,3,5

Answers

Answer:

p=1.50$ per pound

n=3.00$ per pound

6x1.5=9

3x3=9

9+9=18

Answer:

1,3,5

Step-by-step explanation:

go ahead report my answer because brainly is always reporting answers even if they are original and correct. undelete my answers brainly thats not fair. each one of us helps get the answers i matter too.

I NEED HELPPPP
Complete the remaining columns in the chart by calculating the missing values for each
category. Round your percentages to the nearest tenth of a percent. (16 points)

Answers

Answer:

Step-by-step explanation:

Income tax = 9.8%

Housing = [tex]\frac{11400}{48900}\times 100[/tex]

              = 23.3%

Food = [tex]\frac{7800}{48900}\times 100[/tex]

         = 16.0%

Clothing = [tex]\frac{900}{48900}\times 100[/tex]

              = 1.8%

Transportation = [tex]\frac{6000}{48900}\times 100[/tex]

                         = 12.3%

Insurance and medical = [tex]\frac{14400}{48900}\times 100[/tex]

                                       = 29.5%

Entertainment = [tex]\frac{1200}{48900}\times 100[/tex]

                        = 2.5%

Emergency funds = [tex]\frac{600}{48900}\times 100[/tex]

                              = 1.2%

Savings for college = [tex]\frac{600}{48900}\times 100[/tex]

                                = 1.2%

Savings for retirement = [tex]\frac{1200}{48900}\times 100[/tex]

                                      = 2.5%

Total = 100%                              

Answer:

Income tax = 9.8%

Housing =

             = 23.3%

Food =

        = 16.0%

Clothing =

             = 1.8%

Transportation =

                        = 12.3%

Insurance and medical =

                                      = 29.5%

Entertainment =

                       = 2.5%

Emergency funds =

                             = 1.2%

Savings for college =

                               = 1.2%

Savings for retirement =

                                     = 2.5%

Total = 100%                              

Step-by-step explanation:

Use the distributive property to write an equivalent variable expression. -5(5q - 4)

Answers

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The price of a sweater was reduced from 20$ to 12$. By what percentage was the price of the sweater reduced?

Answers

Answer:

60%

Step-by-step explanation:

To find the reduction percentage, divide 12 by 20, then multiply by 100:

12/20

= 0.6

0.6(100)

= 60

So, the sweater was reduced by 60%

Answer:

60%

Step-by-step explanation:

[tex]\frac{12}{20} * \frac{x}{100}[/tex]

12 * 100 is 1200

1200/20 = 60

So, therefore the sweater was reduced by 60%.

Hope this helps, have a great day:)

Two children of a sandwich.How much will each child get

Answers

Answer:

This is a Guess Each child gets Half of the Sandwich.

Step-by-step explanation

If BC = x − 2, CD = 19, and BD = 3x − 11, what is BD? Simplify your answer and write it as a proper fraction, mixed number, or integer. Could you please type the answer in a step by step.

Answers

Answer:

UV = 15

BD= 31

Step-by-step explanation:

Since, U is the midpoint of TV.

Therefore,

TU = UV

x + 10 = 3x

x - 3x = - 10

-2x = - 10

x = - 10/-2

x = 5

UV = 3x = 3*5

UV = 15

BD = BC + CD

3x - 11 = x - 2 + 19

3x - 11 = x + 17

3x - x = 11 + 17

2x = 28

x = 28/2

x = 14

BD = 3x - 11 = 3*14-11 = 42 - 11

BD= 31

. Which table does NOT show y as a function of x?
I 름
4
1
A.
7
Х
10
14
9
9
11
y
18
17
15
16
110
90
B.
14
х
100
80
100
y
-0.2
1.0
-0.9
8.1
-1.3
4.4
C.
0.6
-3.7
Х
-0.2
5.8
y
29
24
21
-27
2.5
2.5
D.
- 24
Х
2.7
2.8
2.7
Y У
o

Answers

이거 뭐야? 이건 질문이 내가 몰라요 그래서 내가 미안해요.

5p · 1 = 5p is what property

Answers

Answer:

034579+&_9&__78'_&666

Winston put 3600 in a bank account that pays 3.4% over a 6 year period. How is the amount of simple interest will he earn? remember i = p r t

Answers

Answer:

3600 x 3.4=122.4 122.4 x 6=Answer

Step-by-step explanation:

What is 1.939 × 105 in standard form?

Answers

Hey there!

ANSWER: [tex]203.595[/tex]EXPLANATION:

[tex]1.939*105[/tex]

Multiply.

[tex]1.939*105=203.595\\203.595(ANSWER)[/tex]

Hope this helps!

[tex]-TestedHyperr[/tex]

Answer:

193900

Step-by-step explanation:

usatestprep

Urgent Fast!!!!!!!??????​

Answers

If he has 484 plants and there are as many rows as there are plants in each row, his field is a square.

The area of a square = (side)^2

In this problem,

Area = 484

side = # of rows

Let's plug our values into the formula above

484 plants = (side)^2

Take the sqrt of both sides.

22 rows = side.

Answer:

This is the answer..........

The length of XY is 24 centimeters. The midpoint of XY is M, and C is on XM so that XD is 2/3 of XM. Point D is on MY so that MD is 3/4 of MY. What is the length of CD?

The length of CD is centimeters​

Answers

Answer:

  CD = 13 cm

Step-by-step explanation:

We assume you intend XC = 2/3 of XM, since XD cannot be that fraction of XM.

__

Of course XM = MY = 12, since M is the midpoint of a segment 24 cm long. Then 2/3 of XM is 8 cm, and 3/4 of MY is 9 cm.

  CD = CM + MD = 4 cm + 9 cm

  CD = 13 cm

A bike rental shop charges a 13 dollar fixed fee plus 7 dollars an hour for renting a
bike. Benny paid $76 to rent a bike. How many hours did he pay to have the bike
checked out?

Answers

Answer:

vRead the passage from “The Beginnings of the Maasai.”

Now Enkai lives at the top of Mount Kenya, and we Maasai still live below, herding cattle down in the plains. It’s not a bad life, especially when Enkai is the Black God, providing for us. And when the cattle or other children cause problems, I just warn them that they never know when I might suddenly develop my godly powers.

The main purpose of the passage is to illustrate the relationship between the Maasai and

Mount Kenya.

the children.

the cattle.

their god.

Step-by-step explanation:

It is 2.1 km from Mary's house to the nearest mailbox. How far is it in meters?

Answers

answer: 2.1km in meters is 2100m
Given:

It is 2.1 km from Mary's house to the nearest mailbox.

To Find:

How far is it in metres.

Conversion:

1 km = 1,000 m

2 km = 2 × 1,000 = 2,000 m

Solution:

2.1 km = ( 2,000 + 100 ) m = 2,100 m

Answer:

2,100 m

Therefore, It is 2,100 metre far away from Mary's house.

If you are dealt 4 cards from a shuffled deck of 52​ cards, find the probability that all 4 cards are picture cards .

Answers

Answer:

If we defelt 4 cards from 52 cards

Step-by-step explanation:

P(b) favorable outcome /total number of outcomes

48/52

The probability that all 4 cards are picture cards is  0.00183

How many kinds are in a deck of 52?

A standard 52-card deck comprises 13 ranks in each of the four French suits: clubs (♣), diamonds (♦), hearts (♥) and spades (♠). Each suit includes three court cards (face cards), King, Queen and Jack, with reversible (double-headed) images.

as, we know

A face card is any of the twelve cards in a deck which has a picture of a face. The face cards are kings, queens, and jacks.

So, the possibilities to get a picture card is are 3*4=12.

Now, he probability that all 4 cards are picture cards

=(12/52) * (11/51) * (10/50) * (9/49)

=( 11880 / 6497400 )

= ( 0.0018284237 )

= 0.00183

Learn more about deck of cards here:

https://brainly.com/question/19202591

#SPJ2

consider the functions show. Explain the graph of a function its inverse are reflections over the line y = x

Answers

Answer:The ordered pairs (a,b) of a function are (b,a) for the inverse function.

Step-by-step explanation:

Answer:

(a,b)/(b,a)

Step-by-step explanation:

A carton has a length of fraction 2 and 1 over 6 feet, width of fraction 1 and 1 over 5 feet, and height of fraction 2 and 1 over 2 feet. What is the volume of the carton?

Answers

Answer:

6 1/2 cubic feet

Step-by-step explanation:

A carton has a length of 2 1/6 feet

The width is 1 1/5 feet

The height is 2 1/2 feet

Therefore the volume of the carton can be calculated as follows

= length × width × height

= 2 1/6 × 1 1/5 × 2 1/2

= 13/6 × 6/5 × 5/2

= 390/60

= 13/2

= 6 1/2 cubic feet

Hence the volume of the carton is 6 1/2 cubic feet

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