Mathematics High School

Factor the expression completely.

18 x − 21 18x−21

Answers

Answer 1

Answer:

3( 6x-7)

Step-by-step explanation:

18 x − 21

Factor a 3 out of each term

3*6x - 3*7

3( 6x-7)

Answer 2

Answer:

Factor 18x−21

18x−21

=3(6x−7)

Answer:

3(6x−7)

Step-by-step explanation:

Related Questions

How would you explain the following problem to a friend who didn't understand today's lesson?
Three angles of a triangle measure 10x+15, 8x+3 ,and 6x–6. Find the measure of the smallest angle.

Answers

Answer:

The smallest angle is 6x-6 which is 36°

Evaluate Z=2X+5 solve for z

Answers

Answer:

z=2x+5

Step-by-step explanation:

A particular plant root grows 1.5 inches per moth. how many centimeters is the plat root grow per month?

A. 0.59 centimeters

B. 1.69 centimerters

C. 3.81 centimeters

D. 4.04 centimeters

PLEASE ANSWER!!!!!

Answers

C

1.5 inches= 3.81 centimeters




Which graph shows a set of ordered pairs that represent a function?

Answers

Answer:

The middle one is a function because there is only 1  x value distributing 1 y value

Step-by-step explanation:

Answer:

#3, on the top right corner

Step-by-step explanation:

what are the fractions that add up to 1
help plzz i will give u brainliest

Answers

Answer:

Things like:

2/9 + 7/9  = 9/9 = 1

3/4 + 1/4 = 4/4 = 1

If the number is the same for the numerator and denominator it adds up to 1.

More examples:

6/10 + 4/10 = 10/10 = 1

9/15 + 6/15 = 15/15 = 1

Dana invited 35 people to a party. Bottled soda comes in packages of 6 bottles. How many packages must Dana buy to have enough soda for each guest to have 1 bottle?

Answers

Dana needs to buy 6 packages.

The function y = -3x + 42 models the average number of dogs at an animal shelter, where x is the number of days after July 1. The
function y = 4x + 7 models the average number of cats at the animal shelter, where x is the number of days after July 1. After how many
days is the average number of cats and dogs at the shelter the same?

Answers

Answer:

27 days

Step-by-step explanation:

I put a picture of the graph for you.

I think the answer would be 27 days:)

1/8k + 80= 1/2k + 120= ?
I need some help pls

Answers

1/8k + 80 = 1/2k + 120

Step 1: Subtract 1/2k from both sides.

1/8k + 80 - 1/2k = 1/2k + 120 - 1/2k

-3/8k + 80 = 120

Step 2: Subtract 80 from both sides.

-3/8k + 80 - 80 = 120 - 80

-3/8k = 40

Step 3: Multiply both sides by 8/(-3).

(8/-3) x (-3/8k) = (8/-3) x (40)

Answer: k = -320/3 or −106.667

PLEASE HELP!
The area of a large rectangular field is 12, 750 square yards. The with is 150 ft.

a. find the length of the field in yards.

b. what is the length of the field in feet?

c. what is the area of the field in square feet?

Answers

Answer:

Area of rectangular field = 12750 square yards

Width = 150 feet

<< Find the length of the field in yards. >>

Your conversion factor: 3 feet = 1 yard

Width = 150 feet = 150/3 = 50 yards

Therefore,

Area = 12750 = L(50)

where

L = length of field = 12750/50

L = 255 yards

<< What is the length of the field in feet? >>

L = 255 yards * 3 feet/yard

L = 765 feet

< .What is the area of the field in square feet? >>

Since there are 3 feet in 1 yard, then there are 9 sq ft in 1 sq yard. Therefore,12750 sq yards * 9 sq feet/sq yd = 114,750 sq feet

Step-by-step explanation:

Find the greatest common divisor of 63 and 42

Answers

Answer:

21

Step-by-step explanation:

The graph of a function is shown below 8 Which inequality represents the domain of the function?​

Answers

nuts gotten you really thought 10$1

$180 car 15% discount

Answers

Answer:

$153

Step-by-step explanation:

180 * 0.85 = 153

Multiply (10 + 2-8)(110 - 2-18)
A) -22
B)-246
C)10-8suqareroot2
D)10+8suqareroot2

Answers

Answer:

First Option (A) -22

Step-by-step explanation:

Answer:

a) 22

Step-by-step explanation:

just took it on edge

second problem is c!

Explain and correct the error made by a student who simplified this expression
–2x + 7x + 8 (–2 + 7 + 8)x 13x

Answers

Answer:

−11(−3−3x) ( i think)

Step-by-step explanation:

Consider the following equation 70 = bx + 7
What value of b will result in the solution x = -9?
A: 11
B: -11
C -7
D 7

Answers

Answer:

I think the answer us C.

Step-by-step explanation:

70-7=63. 9×7=63 so we now know the two values. if the outcome is a positive number then both answers must be negative (negative times negative=positive).

Answer:

-7

Step-by-step explanation:

70=bx+7

70=b(-9)+7

70=-9b+7

-7. -7

63=-9b

÷-9 ÷-9

-7=b

The sum of the measures of the angles of a triangle equals 180°. Write and solve an equation to find the measure of the missing angle.

Answers

Answer:

108.9

Step-by-step explanation:

30.3 + 40.8= 71.1

180 - 71.1= 108.9

The measure of unknown ∠m is equal to 108.9°.

What is triangle inequality theorem?

According to the triangle inequality theorem the sum of the length of any two sides will always be greater than the third side. Mathematically -

(a + b) > c

Given is a triangle with its angle measurements.

We know that the sum of the angles of a triangle is equal to 180 degrees.

Therefore, we can write -

∠m + 30.3° + 40.8° = 180°

∠m = 180° - 71.1°

∠m = 108.9°

Therefore, the measure of unknown ∠m is equal to 108.9°.

To solve more questions on triangles, visit the link below-

https://brainly.com/question/24005690?referrer=searchResults

#SPJ2

Some number minus 11 is equal to the product of the number and 18.

Answers

Answer:

n - 11 = 18n

Step-by-step explanation:

n−11=18n

Step 1: Subtract 18n from both sides.

n−11−18n=18n−18n

−17n−11=0

Step 2: Add 11 to both sides.

−17n−11+11=0+11

−17n=11

Step 3: Divide both sides by -17.

−17n−17=11−17

n=−1117

Answer:

n = −11/17

(x + 1)(x - 3)(x - 4)

Answers

Answer:

Simplified:

x^3 - 6x^2 + 5x + 12

Roots:

-1

3

4

Your answer is x^3-6x^2+5x+12

10x + 1 + 12x - 5 = 180 Find x

Answers

Answer:

x = 92/11

Step-by-step explanation:

10x + 1 + 12x - 5 = 180

*group the like terms*

(10x + 12x) + (1-5) = 180

*simplify*

22x - 4 = 180

*add four on both sides to cancel out -4*

+4. +4

*simplify*

22x = 184

*divide both sides by 22 to cancel out the quantity and solve for x*

÷22 ÷22

*simplify*

x = 92/11

Answer:

x = 92/11, x = 8.36 repeating the .36, or x = 8 4/11

Step-by-step explanation:

Helpppppp it’s middle school stuff

Answers

Answer: Melendez

Step-by-step explanation:

If you divide the amount of water each family uses by the ammountof people in the family, melendez has the lowest per person.

What’s is 93875748282858828819482 - 3826283 have fun

Answers

Answer:

9.3875748e+22

Step-by-step explanation:

plz help will award brainliest

Answers

Answer:

After 5 hours.

35 bacteria cells.

Step-by-step explanation:

Andy’s population is represented by [tex]B=6x+5.[/tex]

Samantha’s population is represented by [tex]B=2^x+3[/tex]

Where B represents the total population given the number of hours x.

We want to find at what hour will their population be the same. We are told to use graphing technology.

Graphing them, we will get the graphs below.

Graphically, their population will be the same where the two graphs intersect.

So, we can see that they intersect at (5, 35).

Therefore, after 5 hours, the total number of bacteria cells for both experiments will be the same.

And the total number of bacteria at that time will be 35 bacteria cell.

Given Sine (t) = StartFraction 7 Over 25 EndFraction for StartFraction pi Over 2 EndFraction less-than t less-than pi, what is Cosine (t)?

Answers

Answer:

Answer is -24/25.

Step-by-step explanation:

Got it right on egde2020

The value of cos (t) is - (24/25), as per  the relation between the sine and cosine of an angle.

What is the relation between the sine and cosine of an angle?

For any angle 'Ф',  the relation between the sine and cosine of an angle is:

sin² (Ф) + cos² (Ф) = 1, when 0 < Ф < (π/2)

Given equation,

sin (t) = (7/25), for (π/2) < t < π

Here, 't' is in the second quadrant.

Therefore, sine is positive here.

However, cosine is negative there.

Therefore, the value of cos (t) is

= - √[1 - sin² (t)]

= - √[1 - (7/25)²]

= - √[1 - (49/625)]

= - √(576/625)

= - (24/25)

Learn about the relation between the sine and cosine of an angle here: https://brainly.com/question/8339068

#SPJ2

Find the volume of the box.
3
6 ft
5 Ft
The volume of the box is
cubic feet.

Answers

i think 90ft square

length x width x height
6 x 5 x 3
that equals 90
V=90 because v=lwh (v=5*6*3=90)

what is the slope of (-8,9) , (3,2)

Answers

Answer: -7/11

Step-by-step explanation:


5 pencils and 3 pens costs £11.
4 pencils and 6 pens costs £16.
Find the cost of a pencil.
Find the cost of a pen.

Answers

Answer:

The pencil is £1 and the pen is £2

Step-by-step explanation:

Let the pencil be p and let the pen be f.

5p + 3f = 11

4p + 6f = 16

the top one multiplies by two:

10p + 6f = 22

4p + 6f = 16    subtract

6p = £6

pencil = £1

Then you substitute the value of the pencil into the equation and find the value of the pen.

Does anyone know this!? If the answer is correct ill mark you as the best answer!

Answers

Answer:

H. Decreasing a y-intercept moves the graph down

convert the given fractional number to percents 2/7​

Answers

Answer: 28.571429%

Step-by-step explanation:

2 divided by 7 is 0.2857142...

In order to make this a percentage you'll need to move the decimal two places to the right.

Raina, Chang, and Alonzo sent a total of 94 text messages during the weekend. Alonzo sent 3 times as many messages as Chang. Raina sent 9 more messages than Chang. How many messages did they each send​

Answers

Answer:

Chang sent 17 messages, Alonzo sent 51 and Raina sent 26.

Step-by-step explanation:

You turn the word problem into an algebraic expression and solve

Raina sent 51, Chang sent 17, and Alonzo sent 26 hopes this helps:)

explain how you would answer 3 - (-5)

Answers

Answer:

3- (-5) + -2.

Step-by-step explanation:

Anything plus a negative number will either make that negative number go closer to zero, or turn into a positive number.

Other Questions
HELLLLPPPPP two questions: AND I WILL GIVE YA THE BRAINLIESTTTTTquestion one: Marcos mixes 434 oz of lemonade. he wants to filll the 14 cups he has with equal amounts of lemonade. How many lemonade should he put in each cup?Marcos should put_____ ounces in each cup.Question 2: Kainoa collects trading cards. he has 1,005 baseball cards, 702 basketball cards, and 885 football cards. And he wants to put them all in albums. Each page holds 18 cards.How many pages will he need to hold all of his cards?Kainoa will need_____ pages. 2. While at the museum, you see Greek statues with more natural poses and more skillful depictions of the human form These are posed with one foot in front of the other, giving natural bended knees and a slight turn in the pelvis. The stance is more athletic and natural to the ways that humans stand and move. From what period do you Infer these statues are? 1).classical2).Hellenistic3).prehistoric4).archaic In paragraph 3, the word turmoil means a which of the following were the allied powers during ww2 Petra jogs 4 miles in 36 minutes. At this rate, how long would it take her to jog 10 miles. how do yo solve 46x3 as the distributive property? is Paddling along the lake, the scenery was relaxing. - a Dangling Modifiers Help please! Look at the image #2 PLS HELP I WILL GIVE BRAINLIEST Based on this lesson's concepts, what are some possible solutions that would allow for greater equality in global economic development? If we increase our food intake, we generally gain weight. Nutrition scientists can calculate the amount of weight gain that would be associated with a given increase in calories. In one study, 16 nonobese adults, aged 25 to 36 years, were fed 1000 calories per day in excess the calories needed to maintain a stable body weight. The subjects maintained this diet for 8 weeks, so they consumed a total of 56,000 extra calories. According to theory, 7700 extra calories will translate into a weight gain of 1 kilogram. Therefore, we expect each of these subjects to gain 56000/7700=7.3 kilograms. The weights in kilograms before and after the 8-week period are shown below:ID: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16Before: 55.7 54.9 59.6 62.3 74.2 75.6 70.7 53.3 73.3 63.4 68.1 73.7 91.7 55.9 61.7 57.8After: 61.7 58.8 66.0 66.2 79.0 82.4 74.3 59.3 79.1 67.0 73.4 76.9 93.1 63.0 68.3 60.3(1) For each subject, manually calculate the weight gain subtracting the weight before from the weight after. someone help!! At what point in a linear plot does a character usually need to make an important decision to try to resolve a conflict?1. exposition2. rising action3. climax4. resolution Why was the Battle of the Thames significant?a.It ended the alliance between the British and American Indians.b.Andrew Jacksons troops killed hundreds of American Indians.c.Creek Indians defeated American soldiers.d.The United States surrendered Detroit to Britain. Which statement forms part of cell theory? Empareja las palabras con los pases apropiados. (Match the words with the appropriate countries.)1.Los incas, Origin of potatoes2.Las Pampas y el tango3.La tierra madre, flamenco y tapas4.Los aztecas5.Los ticos/ las ticas6.Una isla, Pearl of the Seasa.Argentinab.Perc.Costa Ricad.Mxicoe.Puerto Ricof.Espaa A car drives eighty miles on seven gallons of gas. Determine the number of miles pergallon. In baseball, two statistics, the ERA (Earned Run Average) and the WHIP (Walks and Hits per Inning Pitched), are used to measure the quality of pitchers. For both measures, smaller values indicate higher quality. The following computer output gives the results from predicting ERA by using WHIP in a least-squares regression for the 2017 baseball season.VariableDFEstimateSETIntercept15.00.2619.3WHIP16.80.1447.4Which of the following statements is the best interpretation of the value 6.8 shown in the output?a. ERA is predicted to increase by 6.8 units for each 1 unit increase of WHIP.b. WHIP is predicted to increase by 6.8 units for each 1 unit increase of ERA.c. For a pitcher with 0 units of WHIP, the ERA is predicted to be approximately 6.8 units.d. For a pitcher with 0 units of ERA, the WHIP is predicted to be approximately 6.8 units.e. Approximately 6.8% of the variability in ERA is due to its linear relationship with WHIP. WHAT DO I DO NEXT!!!!!!!!!!NamesItem 1PriceItem 2PriceItem 3PriceSubtotalTipTotal BillYour nameMy sister Kids meal and chicken tenders 4.99 burger 3.99 Drinksmall 2.50 49.77 3 50.00Friend #1family Kids meal 4.99 Cheese burger 2.99 Drinksmall 1.99 29.69 10 30.00Friend #2me burger 2.30 fries 2.99 Coffemocha 2.00 13.75 20 14.00Friend #3Family and family Burger with stuff in side 4.99 Burger with stuff in side 4.99 Two drinks for two people. 9.00 18.99 20cPart 2: QuestionsAnswer the following questions, showing all work:What is the total cost of the entire bill (all four meals), including tip?50 + 30+ 14 + 19 = 113Write an expression using fractions to show how to determine the amount that each person will pay. Then calculate each person's contributions showing all steps in long division. 113 If you just multiply 4.99 by 3.99 by 2.50 you would get 49.77 thats just an example.If each person paid an equal amount, who would save the most money? Explain your reasoning using at least two complete sentences. Choose the response that shows the commas in the appropriate.We had a telephone electricity and even hot water in our cabin.We had a telephone, electricity, and even hot water in our cabin.b. We had a telephone electricity, and even hot water in our cabin.CorrectC. What are some reasons European countries might not want to part of the European Union?