-
The expression (3 - 7i)^2 equivalent to

Answers

Answer 1

Answer:

-40-42i

Step-by-step explanation:

9-42i+49i^2=9-42i-49=-40-42i


Related Questions

The midpoint of AB is M(6,2). If the coordinates of A are (4,8), what are
the coordinates of B?

Answers

B = (8,-4)

The midpoint formula is (xm,ym) = ((x1+x2)/2, (y1+y2)/2).
(6,2) = ((4+8)/2, (8+(-4))/2)
Explaination :

Given that,

The midpoint of AB is M(6 , 2)The coordinates of A are (4 , 8)

To calculate,

Coordinates of point B?

So here we would be using the formula of calculating the midpoint of two points.

Midpoint of two points:-

[tex]\boxed{ \sf{M \: = \: \dfrac{x_1 \: + \: x_2 }{2} \: , \: \dfrac{y_1 \: + \: y_2 }{2}}} \: \pink\bigstar[/tex]

We have :

x1 = 4 y1 = 8

Putting the values :

Refer to the attachment.

Therefore,

Coordinates of the point B is (8 , -4)Additional Information :

Centroid of a triangle :-

[tex]\boxed{ \sf{Centroid \: = \: \dfrac{x_1 \: + \: x_2 \: + \: x_3}{3} }} \: \pink\bigstar[/tex]

Distance Formula :-

[tex]\huge \large \boxed{\sf{{d \: = \: \sqrt{(x _{2} - x _{1}) {}^{2} \: + \: (y _{2} - y _{1}) {}^{2} }}}} \: \red\bigstar[/tex]

2) Which situation ONLY describes a purchase made with a credit card?
A) Natalie purchased a new computer with her card. The money came straight out of her checking account
B) Jackie loves using her card to make purchases because it is convenient to use, and she doesn't have to carry cash
David paid for dinner with his card. Each time he uses this card his checking account decreases by the purchase amount
D) Maggie took her mother to the movies and paid for it with her card. This charge appeared on a bill she received two weeks later,

Answers

Answer:

D is the correct answer. This charged appeared on a bill

3/11 x 4/9 fraction multiplication

pls help

Answers

Answer:

[tex] \frac{1}{9} [/tex]

Step-by-step explanation:

[tex] \frac{3}{11} \times \frac{4}{9} [/tex]

[tex] \frac{12}{108} [/tex]

[tex] \frac{1}{9} [/tex]

Answer= 1/9 there you go buddy I will send you anything for a mathematics

Write the rate in lowest terms.
A printer can print 14 pages in 56 sec.
The rate in lowest terms is ______ ?

Answers

Answer:

1 page in 4 sec.

Step-by-step explanation:

To find the rate in lowest terms, divide the 14 pages by 56 seconds and find the simplest fraction.

14/56 = 1/4 in simplest terms.

This means the rate is 1 page in 4 seconds.

need help with geometry (number 21)

Answers

Answer: D

Step-by-step explanation:

Adjacent sides of a rectangle are perpendicular. This means that the measure of angle HEF is 90 degrees.

Solve for x

2x3=x2+6x

please help me. Thanks

Answers

Answer:

heya! ^^

[tex]2x {}^{3} = x {}^{2} + 6x \\ \\ 2x {}^{3} = x(x + 6) \\ \\ dividing \: both \: sides \: by \: x \\ \\ \frac{2\cancel{x} {}^{3} }{\cancel{x}} = \frac{\cancel{x}(x + 6)}{\cancel{x}} \\ \\ 2x {}^{2} = x + 6 \\ \\ 2x {}^{2} - x - 6 = 0 \\ \\ by \: splitting \: the \: middle \: term \: ( - x) \\ \\ 2x {}^{2} - 4x + 3x - 6 = 0 \\ \\ 2x(x - 2) + 3(x - 2) = 0 \\ \\ 2x + 3 = 0 \: \: \: or \: \: \: (x - 2) = 0 \\ \\ x = \frac{ - 3}{2} \: \: \: \: or \: \: \: \: x = 2[/tex]

hope helpful :D

Having trouble with the question!

Answers

Answer:

C) [tex]6r^2-9r-6[/tex]

Step-by-step explanation:

Open the parentheses, you get:

[tex]-3r^2-2r-4+9r^2-7r-2[/tex]

Then combine like terms:

[tex]-3r^2+9r^2=6r^2\\-2r-7r=-9r\\-4-2=-6\\[/tex]

Then right as a polynomial:

[tex]6r^2-9r-6[/tex]

So the answer would be C)

Answer:

6r² - 9r - 6

Step-by-step explanation:

(-3r² - 2r - 4) - (-9r² + 7r + 2)

Multiply to remove the parenthesis:

(-3r² - 2r - 4) - (-9r² + 7r + 2)

1(-3r² - 2r - 4) - 1(-9r² + 7r + 2)

1(-3r²) +1(-2r) + 1(-4) + -1(-9r²) + -1(7r) + -1(2) <== remember that multiplying 2 negatives, makes a positive

-3r² - 2r - 4 + 9r² - 7r - 2

Combine any like terms:

-3r² - 2r - 4 + 9r² - 7r - 2

6r² - 9r - 6 <== make sure that your answer is in Standard form (in decreasing degrees)

Hope this helps!

Find the distance between the two points in simplest radical form.
(9,-1,) and (3,3)

Answers

Hey there!

The distance will be 7.21 units

Step-by-step explanation:Here,

x1 = 9, x2 = 3

y1 = -1, y2 = 3

By using Distance formula

[tex] \sqrt{ {(x2 - x1) + (y2 - y1)}^{2} } \\ \\ \sqrt{ {(3 - 9)^{2} + (3 - ( - 1))}^{2} } \\ \\ \sqrt{ {( - 6)}^{2} + {(4)}^{2} } \\ \\ \sqrt{ 36 + 16 } \\ \\ \sqrt{52} \\ \\ 7.21 \: units[/tex]

Hope it helps

4 pounds of apples cost $6. how much will 6 pounds cost​

Answers

Answer:10 bucks

Step-by-step explanation:

have a good day

$9
One pound costs $1.5, as 6/4 equals 1.5. So, you would do 6 x 1.5, which results in 9.

Need help ASAP due today! I will give brainlisted for correct answer!

Answers

Answer: 15.

Step-by-step explanation: To find the slope, you need to use rise/run which is done below if you need a visual look at what I'm saying.  Before we use rise/run, we need two points on the line.  We'll use (2, 80), and (6, 140).  We need to go 60 up and 4 to the right to make the points meet.  Going up or down is the rise and left or right is the run.  Our rise/run is 60/4 or 15 when you divide.  Therefore, 15 is your slope for this equation of a line.

Have a great day! :)

Type your answer in the box. You may use numbers, a decimal point (.), and/or a negative sign (-) in
your answer.
In one design being considered for the container shaped like a cylinder, the container will have a height
of 12 inches. What will be the radius of the container, to the nearest tenth of an inch?

Answers

Answer
Radius = 2.62 in

Solution in picture

i know how to solve it but i’m just not used to the bigger numbers. could someone still walk me through step by step?

Answers

[tex]\cfrac{42}{70}~~ = ~~\cfrac{u}{55}\implies \cfrac{(14)3}{(14)5}~~ = ~~\cfrac{u}{55}\implies \cfrac{3}{5}=\cfrac{u}{55}\implies \cfrac{3(55)}{5}=u \\\\\\ 3\cdot \cfrac{55}{5}=u \implies 3\cdot 11=u\implies 33=u[/tex]

You are a teller at a bank. A customer has $252 in their checking account. They write a check for $287 (debit) that is cashed by the recipient . Will the new balance be positive or negative?

Answers

Negative. You have $252, and the check will take away $287, so 252-287 is -35.

Compound Shapes
Find the area of each figure, round your answer to one decimal place if necessary
12 ya
30
1)
3)
2)
3
12 yd
18
12 ya
3
20 yd
24
Area
Area
Area
4)
5)
6)
17 cm
4 cm
7.5 m
8 orn
12 cm
10 m
5 m
Area:
Area:
Area:
9)
7)
8)
35 m
3.5 m
20 in
TO in
18 in
21 m
21 in
18 in
20 in
3.5 m
21 m
Area:
Area:
Area:

Answers

Applying the formula for areas of rectangle, triangle, & circle, area of each figure is:

1. 27

2. 537.9

3. 384

4. 168.5

5. 96.3

6. 73.1

7. 357.1

8. 1,029

9. 744

What is the Area of a Circle?

Area of a circle = πr², where r is its radius.

What is the Area of a Rectangle?

Area of a rectangle = length × width

What is the Area of a Triangle?

Where b is the height and b is the base length, area of triangle = 1/2bh.

What is the Area of a Square?

Area = s², where s is the side length.

1. Area of the figure = area of square + area of rectangle = s² + length × width

Area of the figure = 3² + 6 × 3 = 27 ft²

2. Area of the figure = area of circle + area of rectangle = πr² + length × width

Area of the figure = π(7²) + 24 × 16 = 537.9 ft²

3. Area of the figure = area of smaller rectangle + area of bigger rectangle

Area = 12 × 12 + 20 × 12 = 384 yd²

4. Area of the figure = area of 1/2circle + area of triangle = 1/2πr² + 1/2bh

Area of the figure = 1/2π(8²) + 1/2(8)(17) = 168.5 cm²

5. Area of the figure = area of rectangle + area of triangle = (l)(b) + 1/2bh

Area of the figure = (10)(7.5) + 1/2(7.5)(5) = 96.3 m²

6. Area of the figure = area of 1/2circle + area of triangle = 1/2πr² + 1/2bh

Area of the figure = 1/2π(4²) + 1/2(8)(12) = 73.1 cm²

7. Area of the figure = area of 1/2circle + area of rectangle = 1/2πr² + 1/2bh

Area of the figure = 1/2π(10²) + (20)(10) = 357.1 in.²

8. Area of the figure = area of rectangle + area of triangle = (l)(b) + 1/2bh

Area of the figure = (35)(21) + 1/2(28)(21) = 1,029 m²

9. Area of the figure = area of square + area of rectangle = s² + length × width

Area of the figure = 18² + 21 × 20 = 744 in.²

Learn more about the area of rectangle, triangle and circle on:

https://brainly.com/question/14487364

Find the area of the square.





pls help!!

Answers

Answer:

Area of square: 9/16 m²

Step-by-step explanation:

We are given:

Side length of square: 3/4 meters

The area of the square is the side multiplied by the same side. Therefore,

⇒ Area of square: (3/4) × (3/4)⇒ Area of square: (3/4)²

Using the exponents property, [(a/b)² = (a²/b²)]:

⇒ Area of square: (3²/4²)⇒ Area of square: (9/16) m²

Therefore, the area of the square is 9/16 m².

Answer:

[tex]\huge\boxed{\bf{Area_{square} = \frac{9}{16}m^2}}[/tex]

Step-by-step explanation:

Given : -

Slide length of square = [tex]\frac{3}{4}[/tex]m.

To Find : -

Area of square

Ans : -

$\sf \to Area_{square} = (side\:length)^2$

$\sf \to Area_{square} = (\frac{3}{4}m)^2$

$\sf \to Area_{square} = (\frac{3}{4}m*\frac{3}{4})$

$\sf \to Area_{square} = (\frac{3*3}{4*4}m^2)$

$\sf \to Area_{square} = \frac{9}{16}m^2$

[tex]\:[/tex]

$\huge\colorbox{skyblue}{BlackPain}$

Please help me with this! God bless you

Answers

Answer:

1. The wind has blown all the leaves off the tree.

2. All the leaves have fallen to the ground.

3. My kite is being flown in the wind.

4. A shower of acorns have fallen from the sky

5. A busy squirrel dug for his acorns.

6. In the garden, pumpkins have grown.

7. Yesterday my friend and I rode to the park.

8. We have rode to the skate park.

9. My brother wrote me a letter.

10. He has written a essay.

11. Our neighbor had given us a pie.

12. Mom and Dad have spoken to me about cleaning my room.

Step-by-step explanation:

Which expression is equivalent to 20 + 8y − 9y − 21

Answers

Answer:

-y-1

Step-by-step explanation:

A function of x containing four ordered pairs of
the form (x, y) is shown below.
{(2,0),(4,0), (6,0), (8,0)}
What is the domain of the function?

Answers

Answer:

{2, 4, 6, 8}

Step-by-step explanation:

The domain refers to all the possible x values of a function.

Our ordered pairs :

(2,0)(4, 0)(6, 0)(8, 0)

As they are in the form (x, y), the domain is :

{2, 4, 6, 8}

You have been selected by the members of White House to participate in a one-mile race (1 mile = 5,280 feet) on Sports Day. Another student from Blue House will race against you. You know from some trials in PE that you run at an average rate of 12 feet per second. Since the student from Blue house runs 10 feet per second, you have been asked to let him have a 1000-ft. head start.

If both of you maintain the estimated rates, would you be able to beat your opponent in the one-mile race?

REASONING: If both of you maintain the estimated rates, would you be able to beat your opponent in a one-mile race?

Answers

Answer:

Blue wins

Step-by-step explanation:

Blue runner   4280 ft / 10 ft/sec = 428 sec to finish

Red                5280 / 12 =    440 sec     Blue will win

Maren is completing a wood working project. She needs 90 feet of wood. She has 8 pieces of wood that are each 6.2 feet long in her garage. How much more wood will she need to complete the wood working project?

Answers

Answer:

She needs 40.4 feet of wood.

Step-by-step explanation:

➾ She had 8 pieces of wood that are 6.2 feet each, so total length of wood she had = 8×6.2

= 49.6feet.

➾She needs total 90feet. of wood and she had already 49.6 feet of wood.

So, now wood she needed = 90-49.6

= 40.4feet.

____________________________

Hope it helps you:)

Answer:

She needs 40.4 feet of wood

Step-by-step explanation:

Given :-

Maren has 8 piece of wood which are 6.2 feet longShe needs total 90 feet of wood

To find:-

How much wood will she need more

Solution:-

Amount of wood she needs more :-

Wood she wanted to complete project — Wood she already have

by putting the value ,

90 feet — 8 × 6.2 feet

= 40.4 feet


What is a major difference between parallel lines and perpendicular lines?

Answers

Answer:

Parallel lines never intersect. Perpendicular lines are lines that intersect.

Step-by-step explanation:

Hope this helps.

Answer:

Perpendicular lines meet at a 90 degree angle while parallel lines will never touch

Step-by-step explanation:

Identify the quotient in the form of a + bi.
1 + 6 divided by
−3 + 2i

Answers

The quotient of the expression in form of a + bi is 9/13 - 20/13i

Rationalizing complex expressions

Given the following expressions

1+6i/-3+2i

Rationalizing the given rational complex number, we will have;

= 1+6i/-3+2i * -3-2i/-3-2i

= (1+6i)(-3-2i)/9+4
= -3-2i-18i-12i²/13

Simplify the result to have:

= -3+12-20i/13
= 9-20i/13

Express in the form a + bi

9/13 - 20/13i

Hence the quotient of the expression in form of a + bi is 9/13 - 20/13i

Learn more on complex number here: https://brainly.com/question/10662770

Beryllium-li decomposes into boron-li with a half-life of
13.8 seconds. How long will it take 2400 g of beryllium-il
to decompose into 75 g of beryllium-il? (3 marks)

Answers

[tex]\textit{Amount for Exponential Decay using Half-Life} \\\\ A=P\left( \frac{1}{2} \right)^{\frac{t}{h}}\qquad \begin{cases} A=\textit{current amount}\dotfill &75\\ P=\textit{initial amount}\dotfill &2400\\ t=seconds\\ h=\textit{half-life}\dotfill &13.8 \end{cases} \\\\\\ 75=2400\left( \frac{1}{2} \right)^{\frac{t}{13.8}}\implies \cfrac{75}{2400}=\left( \frac{1}{2} \right)^{\frac{t}{13.8}}\implies \cfrac{1}{32}=\left( \frac{1}{2} \right)^{\frac{1}{13.8} t}[/tex]

[tex]\log\left( \cfrac{1}{32} \right)=\log\left[ \left( \frac{1}{2} \right)^{\frac{1}{13.8} t} \right]\implies \log\left( \cfrac{1}{32} \right)=t\log\left[ \left( \frac{1}{2} \right)^{\frac{1}{13.8}} \right] \\\\\\ \cfrac{\log\left( \frac{1}{32} \right)}{\log\left[ \left( \frac{1}{2} \right)^{\frac{1}{13.8}} \right]}=t\implies \cfrac{\log\left( \frac{1}{32} \right)}{\log\left[ \sqrt[13.8]{\frac{1}{2}} \ \right]}=t\implies 69\approx t[/tex]

Find the next two numbers in the sequence 5,2,-1,…

Answers

Answer:

The answer is (-4) and (-7).

Step-by-step explanation:

Given;a₁ = 5a₂ = 2a₃ = (-1)To Find;a₄ = ?a₅ = ?Formula;aₙ = a + (n 1) × d

Now, for common difference (d)

d = a₂ – a₁ = 2 – 5 = -3

d = a₃ – a₂ = (-1) – 2 = -3

Here, common difference is same everywhere.

So, for fourth term or n = 4

aₙ = a + (n – 1) × d

a₄ = 5 + (4 – 1) × (-3)

a₄ = 5 + 3 × (-3)

a₄ = 5 – 9

a₄ = -4

Then, for fifth term or n = 5

a₅ = 5 + (5 – 1) × (-3)

a₅ = 5 + 4 × (-3)

a₅ = 5 – 12

a₅ = -7

Thus, The fourth term is (-4) and fifth term is (-7).

The C major key, starting with the middle C, consists of seven notes (white keys on the piano) with the following frequencies.

Note
C
D
E
F
G
A
B
Frequency(Hz)
261.6
293.7
329.6
349.2
392.0
440.0
493.9

Determine the ratio of the note E to middle C.
a.
1.1224
c.
1.434
b.
1.2599
d.
1.3454

Answers

Answer:

  b.  1.2599

Step-by-step explanation:

The ratio of the two frequencies is found by dividing the first by the second.

__

  (Freq of E)/(Freq of C) = 329.6/261.6 = 1.2599

a=[4 -7 3 -2] find the determinant

Answers

Answer:

13

Step-by-step explanation:

[tex]\text{determinant of A} =\begin{vmatrix}4&-7\\ 3&-2\end{vmatrix}[/tex]

[tex]\text{determinant of A} =\left( 4\times \left( -2\right) \right) -\left( 3\times \left( -7\right) \right)[/tex]

[tex]\text{determinant of A} =-8+21=13[/tex]

julia help the teacher clean the tables in the classroom she notices that 1/4 of the tables are blue and 3/4 of the table are red. there are 8 tables in all how many are red?

Answers

The fraction illustrates that there are 6 red tables.

How to calculate the fraction?

Fron the information, Julia helps the teacher clean the tables in the classroom she notices that 1/4 of the tables are blue and 3/4 of the table are red.

Therefore, the numbers that are red will be:

= Fraction of red × Total number

= 3/4 × 8

= 6

Therefore there are 6 red tables.

Learn more about fractions on:

brainly.com/question/17220365

#SPJ1

There are 110 calories per 28.4 grams of Cereal X. Find how many calories are in 39.76 grams of this cereal

Answers

Step-by-step explanation:

28.4 g there are 110 calories

1 g there are 110/28.4 = 3.87 calories

39.76 g there are 3.87 × 39.76 = 153.87

A company sells confetti in boxes in the shape of a triangular
pyramid. Each box contains a volume of 240 cubic centimeters of confetti, If
the height of the box is 15 centimeters, which of the following
could be the area of the base of the box?
Volume Formula:
V number:
h of the 3-D shape number:

Answers

Answer:

who is William afton family?

Divide and simplify the answer to lowest terms. Write the answer as a fraction or a whole number.
17/10 ÷ 11/4
17/10 ÷ 11/4=______?

Answers

When you divide by a fraction, flip the second fraction over and change divide to multiply:


17/10 / 11/4 = 17/10 x 4/11

Now multiply straight across:


(17 x 4) / (10 x 11) = 68/110

Simplify:

68/110 = 34/55

Answer: 34/55

17/10 divided by 11/4 =34/55 or 0.618
Other Questions
I need help on nine and 10 instructions say to solve these equations by cross multiplying Each picture shows a figure and its reflection. Which picture shows the line of reflection? Select the correct answer.A paper cup in the shape of a cone is used to get water from a water cooler. It has a height of 3 inches and a diameter of 22 inchesWhat is the lateral surface area of the paper cup to the nearest square Inch?OA 15 square InchesOB.19 square Inches.14 square InchesOD. 18 square Inches The ratio of hybrid cars to gasoline-powered cars in the parking lot of a local office building is 3:11. if there are 280 cars in the lot and one is to be selected at random to get the reserved parking space nearest the building, find the probability the car selected is a hybrid. express your answer as a fraction. 1. Select all of the grievances that are found in the Declaration ofIndependence: *The British King has abused the rights of the American coloniesThe British King forced colonists to house soldiers in their homesThe British King asked citizens to give up their rights of representationThe British King dissolved the representative assemblies in the coloniesThe British King accepted petitions for a redress of grievancesa The cranial nerve responsible for movement of the medial rectus, superior rectus, inferior rectus and inferior oblique eye muscles is the ________ nerve. 2. 28 - 3t = 10Work out the value of t. Please help!!! i'll give brainliest and offering 20 pts each!!! write each trinomial in the form a(x+b)^2 or a(x-b)^2please answer all questions correctly! please no spam :-( 5x^2 + 15x + 11.25 10x^2 +20x +101/4x^2 + x + 13x^2 + 5x + 25/12explanation isn't necessary, but i will give brainliest to the person with an explanation/best explanation What book does Montag bring to Faber? Which of the following best describes the graph below?-A It is a function, but it is not one-to-oneB. It is a one-to-one functionC. It is a many-to-one functionD. It is not a function The first three steps in writing f(x) = 40x 5x2 in vertex form are shown. write the function in standard form. f(x) = 5x2 40x factor a out of the first two terms. f(x) = 5(x2 8x) form a perfect square trinomial. (eight-halves) squared = 16 f(x) = 5(x2 8x 16) 5(16) what is the function written in vertex form? A contractor on construction job specified a penalty for delay of completion beyond a certain date as: Rs.200 for the first day, Rs.250 for the second day, Rs300 for the third day and so on. The penalty for each succeeding day being Rs50 more than that of preceding day. How much money the contractor has to pay as penalty, if he has delayed the work by 30 days?Can someone tell me the answer of this?? O Points: 0 of 1A 12-sided die is rolled. The set of equally likely outcomes is {1,2,3,4,5,6,7,8,9,10,11,12). Find the probability of rolling a number greater than 17.The probability of rolling a number greater than 17 is (Type an integer or a simplified fraction) In the introduction to the guide that Facing History and Ourselves created for his film Schindlers List, Steven Spielberg wrote of the Holocaust, Even today the world has not yet learned the lesson of those terrible years. There are far too many places where hate, intolerance, and genocide still exist. Thus Schindlers List is no less a Jewish story or a German story than it is a human story. And its subject matter applies to every generation. To what extent is he describing our centurys hatred? Please help me if it is correct I will mark you as brainliest. ANSWER AS QUICKLY AS POSSIBLE!!!!!!!! If x = 2 and y = -3, what is the value of 2x^2 + 3xy 2y^2? Can someone help me? How does Juliet say she will know that Romeo is serious about his love? A. He will refuse to fight Tybalt. OB. He will arrange for them to be married the next day. C. He will end his relationship with Rosaline. D. He will sleep in the garden overnight. SUBMIT If the sum of a number and four is tripled the result is eight less than twice the number How did people use American Exceptionalism to justify expansion?A. They believed the US should show the world the fantastic goods it was makingB. They believed the US had a right to rule any territory it wantsC. They believed the US should liberate territories and bring libertyD. They believed the US had to build up barrier territories to itself