Find the product of (3x + 7y)(3x − 7y)

Answers

Answer 1

Answer:

9x^2 - 49y^2

Step-by-step explanation:

Answer 2

Answer: 9x^2 - 49y^2

Step-by-step explanation:

(3x + 7y)(3x − 7y)

9x^2 -21xy + 21xy - 49y^2

9x^2 - 49y^2


Related Questions

Juan wants to buy a house for $162,800. The rate of down payment is 20% of the cost of the house. What is the down payment? i assume $3,256,00

Juan wants to buy a house for $162,800. The rate of down payment is 20% of the cost of the house. What will the mortgage be?

Answers

Answer:

I think its gonna be 162.860

Need helpppp pleaseeeee

Answers

Umm...

What is your question??? You have no question in the question box or attachments.

Why are negative exponents not positive.

Answers

A positive exponent tell how many times to multiply the basement base number, and a negative exponent tells us how many times to divide the base number

There are 60 students eating lunch in the cafeteria five-tenths of them brought lunches from home. How many students brought lunches from home?

Answers

Five-tenths is equal to a half and half of 60 is 30 so the answer would be 30 students!:)

Answer: 30   Hope this helps please mark brainliest! Thanks!

Step-by-step explanation:

Five tenths=5/10=50%=1/2

So basically it's 30 out of 60 students brought lunch from home.

So the answer is 30!

find the value of x if possible

Answers

Answer:

Step-by-step explanation:

6x - 17 = 3x + 7

3x = 24

x = 8

help asap help asap for a brainlist

Answers

Answer:

x=4

Step-by-step explanation:

Step 2 and 3 are incorrect,

4x+8 = 24

24-8 = 16

it should then be 4x=16

you then divide by 4 on each side

x=4

Is z = 11 a solution to the inequality below?

4z - 4 < 43

yes or no

Answers

Plug it in like any normal algebra

4(11) - 4 < 43

44 - 4 < 43

40 < 43

The statement is correct.

Z = 11 is a solution.  

GOLDEN RULE FOR INEQUALITIES

WHENEVER SOLVING AN INEQUALITY TREAT IT LIKE REGULAR ALGEBRA, but whenever you MULTIPLY or DIVIDE both sides of an inequality by a NEGATIVE NUMBER, you must flip the inequality symbol.

Christine's parents gave her $70 to spend at the Topsfield Fair. She spent $10 on flowers and needs to buy vases. Each antique flower vase at the fair costs $3.
Which represents the number of antique flower vases Christine can buy?
at least 20 vases
O at the most 20 vases
O exactly 20 vases
O at the most l vase

Answers

Answer:

97

Step-by-step explanation:


Select the values that make the inequality h < 1 true.
(Numbers written in order from least to greatest going across.)

Answers

H = 0 and all negative numbers

What percent of each diagram is shaded below?

Answers

Answer:

a. 3/10

b. 1/5

c. 1/4

Step-by-step explanation:

a. 30/100 = 3/10

b. 20/100 = 1/5

c. 25/100 = 1/4

Answer:

Step-by-step explanation:

You are working with 1 large square made up of 100 little squares. The little squares make up 10 columns of 10 little squares each.

A

Shaded part = 30 squares.

Entire large square = 100 small squares

% = 30 / 100 * 100 = 30%

B

Shaded part = 20 horizontal squares.

Entire large square = 100 small squares

% = 20 / 100 * 100 = 20%

C

Shaded part = 5 by 5 little squares = 25 little squares

Entire large square = 100 small squares

% = 25 / 100 * 100 = 25%

Juan worked 2.5 hours and earned $37.00. Lisa was paid $42.00 for 3 hours of work. Which of the following statements is true?

Juan made a lower rate of pay because he made less money.

Lisa made a better rate of pay because she made more money.

Lisa said she made a better rate of pay because her rate was $14 an hour.

Juan said he made a better rate of pay because he was paid $14.80 an hour.

Answers

Answer:

Juan said he made a better rate of pay because he was paid $14.80 an hour.

Step-by-step explanation:

Juan made more because he makes $14.80 an hour, whereas Lisa makes only $14 an hour.

Enjoy your day! :D

Write the expression using exponents.

3 × 3 × 3 × 3

A. 33
B. 34
C. 43
D. 35

Answers

Answer:

B

Step-by-step explanation:

Charlie is making chocolate cake for his birthday party. He found a recipe that needs 2 cups of cocoa powder for every 3 cups of sugu. Al of his friends

are coming, so he uses 6 cups of cocoa powder in his cake,

How many cups of sugar should Charlie uso?

Answers

Step-by-step explanation:

the mix follows the ratio 2/3 (cups of cocoa to sugar).

2 × x = 6 cups

x = 6/2 = 3

so, the cocoa cups number is multiplied by the factor 3, and we need to multiply also the sugar cup number with the same factor to keep the ratio value unchanged :

so, we need 3×3 = 9 cups of sugar.

plss help, it’s pretty easy tho

Answers

Answer:

B

Step-by-step explanation:

Convert 55.1% to a fraction in simplest form and a decimal.

Answers

Answer:

551/10      0.551

Step-by-step explanation:

Answer:

Fraction = 551/1000

Decimal = 0.551

Step-by-step explanation:

55.1% to fraction = 55.1/100 or 551/1000

55.1% to decimal = 0.551

-Chetan K

12 lbs of
potatoes
for $15.00
OR
8 lbs of
potatoes
for $9.20

Answers

Answer:

12 lbs for $15

Step-by-Step Solution:

12 / $15 = $0.80

8 / $9.20 = $0.87

Pls answer all 4 questions AND HURRY!!!!

Answers

Answer:

5pts

Step-by-step explanation:

for a brainlist pls answer
Find the intercepts of the given equation. To earn full credit, show your work using a method explained in the Orientation.

Answers

Answer:

[tex]x=-2y+10[/tex]

Step-by-step explanation:

Step 1: Flip the equation.

Step 2: Add -5 to both sides.

Step 3: Divide both sides by (-1)/2.

PLEASE HELP ME OUT!!!

Convert the following

0.005kg = ______ dag
0.075 m = ______ cm
15g = _______mg

Answers

Answer:

0.005*1000dag

5dag

0.075*100cm

7.5cm

The temperature of a mixture changes by −5.2°F between 8 a.m. and 11 a.m. At 6 p.m., the temperature is 14.5°F, which is half what it was at 11 a.m.

What was the temperature at 8 a.m. of the mixture?

Enter your answer as a decimal in the box.

Answers

Answer:

34.2

Step-by-step explanation:

Answer:

K12 Answer

Step-by-step explanation:

Find the inverse (pre-calc)

Answers

Answer:

f^(-1)(x) = e^(x/3)

Step-by-step explanation:

1.  Replace 'f(x)' by 'y:'  y = 3ln x

2. Interchange x and y:  x = 3ln y => x/3 = ln y

3. Solve for y:  

   e^(x/3) = y

4.  Replace this 'y' with 'f^(-1)(x)'

    Then f^(-1)(x) = e^(x/3)

help with this question please!

Answers

Gotta subtract the triangle from the semi circle

Triangle: 1/2 base • height
= 1/2 (6) • 3
= 9

Then find the semi circle
(pi r^2)/2
= (3.14 • 3^2)/2
= 14.13

14.13 - 9 = 5.13 mm^2

If a triangle has a base of 6 feet and a height of 5 feet, what is the area?

Answers

Answer:

15 square feet

Step-by-step explanation:

a = (1/2)bh

a = (1/2) * 6 * 5

a = 3 * 5

a = 15

15 square feet

For this exponential function, what is the output value (y), when the input value (x) is O? y = 5. 2x ​

Answers

Answer:

(0,. 5 )

Step-by-step explanation:

Substitute the input x = 0 into the function for output y

y = 5 × [tex]2^{0}[/tex] = 5 × 1 = 5 [ note [tex]a^{0}[/tex] = 1 ]

Jason was a recent graduate from a university program with a Bachelor of Science in Medical Technology. He will begin a position at the local hospital working 40 hours a week with an hourly rate of $25.50. He will receive a paycheck every two weeks. In a document, calculate the following. Be sure to show your mathematical calculations.
Gross Pay for 1 paycheck
Deductions for federal tax, state tax, and city tax
Deduction for F.I.C.A. or social security tax
Deduction of $117 for medical and dental insurance.
What would Jason’s net monthly income and net annual salary be after taxes and insurance?

Answers

Answer:

Gross Pay for 1 paycheck

Deductions for federal tax, state tax, and city tax hope it helps :)

Step-by-step explanation:

The net monthly income of Jason is $194.68 and the net annual salary is 23324.16.

What is gross pay?

Gross pay of an employee is basically sum of his basic pay, dearness allowance, any other allowance only. Public providend fund, income tax are not deducted from it.

How to find net pay?

1) Gross paycheck=2*40*25.5=$2040.

2) Federal tax=2040*21%=$428.4

3) State tax=25=$25

4) City tax=2040*12%=$244.8.

5) Deductions=2040*12.45=$252.96.

6) Net monthly income=2*(Gross pay-federal tax-state tax-city tax-deductions-deductions for F.IC.A. or social security tax)

=2*[2040-428.4-25-244.8-252.96-117]

=1943.68

7) Net annual salary=12* net monthly income.

=1943.68*12  ( 1year= 12 months)

=$23324.16

Hence the net monthly income of Jason is $194.68 and the net annual salary is 23324.16.

Learn more about gross pay at https://brainly.com/question/11274742

#SPJ2

i fractions what is 2 x 5/8 i need heeeeeeeeeeeeeelp

Answers

Answer:

1 . 25 or 5/4 as a fraction

Step-by-step explanation: Hope this helps mark me branliest plssss;)

Answer:

2*5/8 = 5/8 + 5/8

So the answer is 1 and 1/4 :)

which quadrilaterals always have diagonals that bisect opposite angles

Answers

The answer to you question is it’s a rhombus. I hope this has helped you.

At a picnic, 12 people shared 4 large sandwiche
equally. How much of a sandwich did each
person get to eat?

Answers

Answer:

1/3

Step-by-step explanation:

Answer:

each person ate 1/3 of a sandwich

Step-by-step explanation:

18 ounces. of iced tea costs 2.99. How much will 30 ounces. cost

Answers

Answer:

About $4.98

Step-by-step explanation:

The cost of 30 ounces of iced tea will be $4.98.

What are ratio and proportion?

A ratio is a group of sequentially ordered numbers a and b expressed as a/b, where b is never equal to zero. When two objects are equal, a statement is said to be proportional.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.

18 ounces. of iced tea costs 2.99. Then the ratio of cost to weight is calculated as,

⇒ $2.99 / 18

⇒ $0.166 per ounce

Then the cost of 30 will be calculated as,

⇒ $0.166 x 30

⇒ $4.98

The cost of 30 ounces of iced tea will be $4.98.

More about the ratio and the proportion link is given below.

https://brainly.com/question/14335762

#SPJ5

Find the cost per roll if a bag of five lunch rolls is $2.50

Answers

[tex]\rule{300}{3}[/tex]

[tex]\text{Hi!}[/tex]

To find the cost per item (or in your case "rolls"), you will first have to divide the cost of the lunch rolls  [tex](2.50)[/tex]  by the amount of lunch rolls there are [tex](5)[/tex].

So in this case, it would look like

[tex] \textbf{$2.50/5} [/tex][tex]\text{$2.50 ÷ 5}[/tex][tex]\text{$2.50 / 5}[/tex][tex]\text{2.50}[/tex] ÷ [tex]\text{5}[/tex]

[tex]\text{=$0.50}[/tex]= [tex]\text{\ 0.50}[/tex]

[tex]\boxed{\$0.50{}}[/tex]

[tex]\rule{300}{3}[/tex]

Other Questions
when youre investigating a source for your research, you might observe features that indicate the source is likely to be trustworthy or untrustworthy. other features can be inconclusivenot helpful in deciding to use the source or not. for each of the following, answer whether its a sign of a trustworthy source, an untrustworthy source, or inconclusive. Which statements about the relative location of Texas are accurate? Check all that apply.Texas is south of Oklahoma.Texas is west of New Mexico.Texas is bordered by Mexico to the south.Texas is on the Pacific coast.Texas is along the Gulf of Mexico.Texas is west of Louisiana.Texas is north of Arkansas. A mis amigas _____ _____________ las papas fritas. The annual rainfall in a town has a mean of 51.84 inches and a standard deviation of 8.05 inches. Last year there was rainfall of 63 inches. How many standard deviations away from the mean is that ABCD is a parallelogram.the length of AB is 15 what is the the length of CD A key contribution of ________ was the identification of the major functions of management which are planning, leading, organizing, and controlling. total quality management administrative management the behavioral viewpoint contingency theory How does the 4th Amendment protect citizens from government abuse? the ratio 18:24 in its simplest form is? What is the value of x?A hexagon (6 sides)133112x120128100please help asap, no links Individuals joining a population is an example of emigration / immigration Quadrilateral ABCD with vertices A(-4, 1), B(-2,3), C(0,-2), and D(-5,-2) Give the coordinates of the image if k=3. An 18 year old man presents after twisting his right ankle playing basketball. He has tenderness over the anterior talofibular ligament and there is instability of the ankle with movement. An X-ray shows no fracture or dislocation. He has: Hello guys I was just wondering could anyone summarize the main character of the book The Cradle by Patrick Somerville please I would appreciate it because I am doing a Resum for it could anybody please help me why do developing nations impose few or no restrictions on logging? For a school fund raising project, Aiden and Jacob collected money in the ratio 3.5;6.8. Jacob collected $115.50 more than Aiden. Find the total amount of money they collected Does anyone know how to write an equation in slope-intercept form?For example: A line that includes the point(2, 5) has a slope of 4. Whatis its equationinslope-intercept form?Write your answer using integers, proper fractions, and improper fractions in simplest form.y=?x - ?y=mx+b Identify the pronouns in the sentence below.This will be easy for us since we studied.Your answer:this, weus, wethis, usthis, us, we Which of the following can you do after switching to Outline view? Select all the options that apply.a. Change the level of text.b. Change the order of slides.c. Move text within a slide.d. View an outline of the presentation. The video mentioned that there are two types of seismic waves that occur in the ground during an earthquake, primary (Pwaves) and secondary (s waves). What important differences are there between P waves and S waves? Imagine that you have been asked to write a letter to a 7thgrader. Using academic vocabulary and 5-7 complete sentences, write a letter teaching a 7thgrader about something you have learned in 8thgrade Math this year.please help me!