Which of the following results in the difference of two squares?

a. (7x - 3y)^2

b. (4x - 9y)(4x - 9y)

c. 5x^2(4x - 3)

d. (2x + 8y)(2x - 8y)

Answers

Answer 1

Answer:d

Step-by-step explanation:


Related Questions

PLEASEEE HELP MEEEEE EASY 10 POINTSSS

Answers

3x-y+3=0............

Answer:

y = -3x + 3

Hope this helps, thank you !!

please help me someone with this problem

Answers

I would help you but the picture is blurry

I need help with only B pls

Answers

Answer:

The population is increasing

Step-by-step explanation:

You can tell that function is increasing from the equation because the rate of change is [tex]\frac{5}{4} = 1.25[/tex]

Since this value is greater than [tex]1[/tex] it indicates that the population is being increased.

plz mark me brainliest. :)

Factor as the product of two binomials.
x^2 – 100

Answers

Answer:

(x+10)(x-10)

Step-by-step explanation:

Texas is home to about 70% of the 47 species of bats in the United States. About how many species of bats live in Texas?​

Answers

Answer:

33

Step-by-step explanation:

70% of 47 is 33 species

Answer:

32.9

Step-by-step explanation:

Find the solution of the system of equations -7x-3y=-20 3x+6y=-15

Answers

9514 1404 393

Answer:

  (5, -5)

Step-by-step explanation:

I like a graphing calculator for quickly finding a solution to a system of equations. It shows the solution to be (5, -5).

__

We can add the second equation to 2 times the first to eliminate the y-variable.

  2(-7x -3y) +(3x +6y) = 2(-20) +(-15)

  -11x = -55 . . . . . collect terms

  x = 5 . . . . . . . . . divide by -11

Substituting this value into the second equation, we have ...

  3(5) +6y = -15

  6y = -30 . . . . . . . . subtract 15

  y = -5 . . . . . . . . . . divide by 6

The solution is (x, y) = (5, -5).

please help again :,)) is it one solution, all solutions, or one
please show your work.

Answers

Answer:

Infinite many solutions

Step-by-step explanation:

If you graph it there is only 1 line

A variable needs to be eliminated to solve the system of equations below.
Choose the correct first step.
-10x + y = 64
-10x + 5y = 40

Answers

Answer:

-10x + y = 64

Step-by-step explanation:

hope it helps

You would get rid of the -10x on each side to get y=64 and 5y=40

Solve for x 6 = 2( x + 0)

Answers

Answer:

x = 3

Step-by-step explanation:

Answer: x = 3

Step-by-step explanation:

I need help Please!!!!​

Answers

i think it’s 48 inches

Answer:

48 inches

Step-by-step explanation:

[8/3](18) =48

Can someone please help i will mark brainliest i need help asap.

Answers

Answer:

14.3

Step-by-step explanation:

14.3

Answer:

13 inches or 13.3 feet

Step-by-step explanation:

:)

20 divided by c write an algebraic expression for the word expression ​

Answers

Step-by-step explanation:

The algebraic expression is

20

----

c

or

20/c

HELP PLZ there are no answer choices plz

Answers

the answer would be 12.5
if this is scale factor .. you have to divide the side by each other
10/4 = 2.5
20/8 = 2.5
which means 5 multiply by 2.5 equals 12.5


xy^2/xy + x^2y^2
ANSWER ASAP WILL GIVE BRAINLY

Answers

Answer:

x (y^2xy + xy^2)

Step-by-step explanation:

A whole number is written on a piece of paper.
You are given three clues to help you work out the number written on the piece
of paper.
Clue 1: Triple the number is between 18 and 33 inclusive.
Clue 2: The number is a prime number.
Clue 3: The number is not a factor of 99.
Use each of the clues above to refine your search.
Enter the list of numbers obtained after each clue to finally find the number
written on the piece of paper.
[3]

Answers

Answer:

1)6,7,8,9,10,11

2)7,11

3)7

The whole number is 7.

What is whole number?

The group of natural numbers that includes the number 0 is known as whole numbers. The mathematical set of whole numbers is 0 through 9 and is represented by the letter W.

W = {0, 1, 2, 3, 4, …}

To better grasp whole numbers, consider the following information:

Whole numbers make up all natural numbers.There are only full numbers while counting.Zero and all positive integers are whole numbers.Real numbers are all entire numbers.

Given:

Triple the number is between 18 and 33 inclusive.

Then the number can be

3x6 = 18

3 x 7= 21

3 x 8= 24

3 x 9= 27

3 x 10= 30

3 x 11=33

Numbers are 6, 7, 8, 9, 10, 11

2. Number is a prime number

The prime numbers are 7 and 11.

3. Number is not a factor of 99

The number is 7 because 11 is factor of 99.

Learn more about whole number here:

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A dance club had 160 members. There was a membership increase of 5%. How many new person's joined the club.

Answers

10% would be 16 people, so 5% would be half of that, 8 people. 160+8=168

A variable needs to be eliminated to solve the system of equations below. Choose the correct first step.
8x+9y= -82
-x-9y=89

Answers

Answer:

Step-by-step explanation:

Hey could U help me with this question

WILL MARK YOU BRAINLIEST

Answers

Answer:

because WXYZ is a rhombus

=> WX // YZ

=> ZWX + WZY = 180⁰

=> WZY = 180 - ZWX = 180 - 77 = 103

Jo sold 132 mugs. One quarter of the mugs were small. The rest were large. How many small mugs did Jo sell? * 1 point

Answers

Answer:

33 small mugs

Step-by-step explanation:

Given:

Total number of mugs sold by Jo = 132

One quarter of the mugs were small. The rest were large.

To find: Number of small mugs sold by Jo

Solution:

Number of small mugs sold by Jo = [tex]\frac{1}{4}[/tex] (Total number of mugs sold by Jo)

Therefore,

Number of small mugs sold by Jo [tex]=\frac{1}{4}(132)=33[/tex]

find the geometric mean of 8 and 17

Answers

Oh gosh oh I thought had the president of the

Help i dont know the answer

Answers

Answer:

25

Step-by-step explanation:

In her first 5 days, she reads 80 pages. That means that per day, she reads 16 pages. Then, she had 400 pages left, since 480-80 = 400.

So, you divide 400/16 = 25 days.

Hi if if if if hccjhckvkbbonono uf

Erin is flying a kite. Originally, she holds the string in her hands, about 4 feet above the ground. She lets out 29 feet of string and estimates the height of the kite to be 24 feet above the ground. She then lets out another 60 feet of string. Approximately how high is the kite currently above the ground?

Answers are
65 feet

50 feet

84 feet

70 feet

Which is it

Answers

Answer:

84 maybe

Step-by-step explanation:

hi!!! what’s the area and formula for this problem??

Answers

Answer:

134.28 m²

Step-by-step explanation:

I suppose this is an isosceles triangle

tan 75° = 2 + √3 = 3.73 = h / 6      (h: height and 6 = 12/2, 1/2 of base)

h = 6 x 3.73 = 22.38

Area = (12 x 22.38) / 2 = 134.28

Can somebody plz help solve each questions for what it equals correclty thanks so much :3

WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST !!:DD

Answers

25.) m = 32

26.) p = 42

27.) r = 24

28.) x = 45

Serenity invested $3,100 in an account paying an interest rate of 2.9% compounded continuously. Assuming no deposits or withdrawals are made, how much money, to the nearest dollar, would be in the account after 12 years?

Answers

Answer:

$4179

Step-by-step explanation:

3,100*.029= 89.9

89.9*12=1,078.80

3,100+1,078.80=4,178.80

4,178.80 rounded to the nearest dollar= 4179

The amount of money in the account after 12 years would be $4,371.

What is Compound interest?

Compound interest is defined as interest paid on the original principal and the interest earned on the interest of the principal.

To calculate the amount of money in the account after 12 years, we need to use the formula for continuously compounded interest, which is:

A = P[tex]e^{rt}[/tex]

where A is the final amount, P is the principal (initial amount invested), r is the annual interest rate, and t is the number of years the money is invested.

In this case, the initial amount invested is $3,100, the annual interest rate is 2.9%, and the number of years is 12.

Plugging these values into the formula, we get:

A = $3,100 × [tex]e^{0.029 \times 12)[/tex]

A = $3,100 × [tex]e^{0.348}[/tex]

A = $3,100 × 1.41

A = $4,371

Therefore, the amount of money in the account after 12 years, to the nearest dollar, would be $4,371.

To learn more about Compound interest click here:

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Classify each angle
Name Each Angle in Four Ways

Answers

Well the first one is obtuse and more than 90 degrees, the 2nd one is also obtuse and more than 90 degrees, the 3rd one is acute and less than 90 degrees, the 4th one is obtuse and 180 degrees, and the 5th one is a right angle and is 90 degrees

Answer:

1) Obtuse angle

2) Obtuse angle

3) Acute angle

You can do 4 and 5. I will give you a hint that acute angles are less than 90 degrees and obtuse angles are more than 90 degrees. And if it is a straight line it is 180 degrees.

6) Angle KLM, MLK, Obtuse angle, and angle 5.

7) Angle DCB, BCD, Obtuse angle, and angle 5.

You can do 8. I will give you a hint that the letters will start from end-middle-end and it can be opposite. If getting confused then look what I did. On muber 6, my I typed angle KLM and angle MLK. Both of them are same but look on how I typed. Also while naming angles, they will be in capital.

Hope this helps, thank you !!

please help asap!!!!!!!!!!!!

Answers

7853.98mm

Step-by-step explanation:

Circumference is pi times diameter so the diameter is 100 millimeters

Diameter is 2 times the radius so the radius is 50 millimeters

Area is pi times the radius squared so the area is about 7853.98 millimeters squared

Answer:

A = 795.77

Step-by-step explanation:

Using the formulas

A=πr2

C=2πr

Solving forA

A=C2

4π=1002

4·π≈795.77472

The winning time for a race are shown in the table.

Which answer describes the average rate of change from year 2 to year 4?

A) the winning time increased by an average of 0.4 second per year from year 2 to year 4.

B) the winning increased by an average of 0.8 second per year from year 2 to year 4.

C) the winning time increased by an average of 0.475 second per year from year 2 to year 4.

D) the winning time increased by an average of 0.267 second per year from year 2 to year 4.

Answers

Answer:

The winning time increased by an average of 0.4 second per year from year 2 to year 4.

Step-by-step explanation:

I just took the quiz

The winning time for a race displayed in the table would be:

A). The winning time increased by an average of 0.4 seconds per year from year 2 to year 4.

Find the increase in winning time:

Given that,

Year                             Winning Time(seconds)

1                                          27.5

2                                         28.4

3                                         28.7

4                                         29.2

5                                         29.44

The total change in the time = (0. + 0.3 + 0.5 + 0.24)/4

= 0.485 seconds

If we round off, it becomes 0.5 seconds.

Therefore, it can be considered that an average of 0.5 seconds changes every year from year 2 to 4.

Thus, option A is the correct answer.

Learn more about "Time" here:

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The angle of a triangle are in the ratio 3:7:8. Find the angles.​

Answers

Answer:

30°, 70°, 80°

Step-by-step explanation:

Let the measures of the angles be 3x, 7x and 8x.

Since, sum of the measures of all the three angles of a triangle is 180°.

Therefore,.

3x + 7x + 8x = 180°

18x = 180°

x = 180°/18

x = 10°

3x = 3*10° = 30°

7x = 7*10° = 70°

8x = 8*10° = 80°

Thus, the measures of the angles are 30°, 70°, 80°.

Which relation is a function?

{(5, 0), (–8, –5), (–8, 5), (–5, –8)}

{(5, 0), (0, 5), (–5, –5)}

{(5, 0), (0, –8), (5, –5)}

{5, 0, –8, –5}

Answers

The third one is a function
The person on top is correct the third one is a function have a nice day:)
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