Identify the property that justifies the statement: If 3x=-21, then x=-7.

Identify The Property That Justifies The Statement: If 3x=-21, Then X=-7.

Answers

Answer 1
Division property of equality

Related Questions

A freight train, traveling at a speed of 18.0 m/s, begins braking as it approaches a train yard. The train's acceleration while braking is –0.33 m/s2 . What is the train's speed after 23s?

Answers

Answer:

v = 10.41 m/s

Step-by-step explanation:

using one of the equations of motion:

v = u + at

where v= final velocity

u= initial velocity

a = acceleration

t = time

u = 18.0 m/s

v = ?

a = –0.33 m/s2

t = 23s

v = 18.0 + (–0.33 x  23)

v = 18.0 + (-7.59)

v = 10.41 m/s

You are building a shelf that fits in a corner in the figure the entire shelf is XYZ each unit in the coordinate plane represents one inch find the area a of the shelf X is (15,20) Z is (0,5) Y is (15,5)

Answers

Answer:

[tex]Area = 112.5[/tex]

Step-by-step explanation:

Given

[tex]X = (15,20)[/tex]

[tex]Y = (15,5)[/tex]

[tex]Z = (0,5)[/tex]

Required

Determine the area of the triangle

The area is calculated using the following formula:

[tex]Area = |\frac{X_x(Y_y - Z_y) + Y_x(X_y - Z_y) + Z_x(X_y - Y_y)}{2}|[/tex]

Where

[tex](X_x,X_y) = (15,20)[/tex]

[tex](Y_x,Y_y) = (15,5)[/tex]

[tex](Z_x,Z_y)= (0,5)[/tex]

Substitute right values in the given formula:

[tex]Area = |\frac{15(5 -5) + 15(20 - 5) + 0(20 - 5)}{2}|[/tex]

[tex]Area = |\frac{15(0) + 15(15) + 0(15)}{2}|[/tex]

[tex]Area = |\frac{0 + 225 + 0}{2}|[/tex]

[tex]Area = |\frac{225}{2}|[/tex]

[tex]Area = |112.5|[/tex]

[tex]Area = 112.5[/tex]

Hence, the area of the triangle is 112.5

what are the aspects of a good setter in volleyball

Answers

Answer: be a good communicator with strong leadership skills who quickly builds trust with the ability to talk and communicate with her hitters.

encourages hitters when they are playing well and when they aren't playing well.

(I used to play volleyball myself)

1. (2 - 3i) + (6+5i)

Answers

Answer:

(8+2i)

Step-by-step explanation:

If Jesse wants to buy a $75,000 10-year term life insurance policy, and the annual premium rate (per $1000 of face value) for his age group is $2.34, how much is Jesse’s annual premium?

Answers

Step-by-step explanation:

Since it is given that it costs $2.34 for every $1000 face value, and it was given that he wanted to buy a $75000 plan, multiplying $2.34 by 75 (75000 includes 75 $1000 face value), it should yield us the annual premium.  

2.34 * 75 = $175.50

We don't need to multiply it by 10 years as only the annual premium is being solved for.

Answer:

C $212.57

Step-by-step explanation:

I Just took the test on e2020

Shandra is on vacation and wants to buy souvenirs for at least eight friends. A postcard book costs $2.50 and a magnet costs $4.00. She can spend up to $30 all together. Which system of inequalities represents the situation?

Answers

Answer:

[tex]2.5p + 4m \leq 30[/tex]

Step-by-step explanation:

Given

Poster = $2.50

Magnet = $4.00

Amount = Up to $30

Required

Determine the inequality

Represent posters with p;

This implies that she can buy 2.50p worth of posters

Represent magnets with m

This implies that she can buy upto 4m worth of magnets

The question says she can spent up to $30;

This implies that she can spend at most $30 and this can be mathematically represented as [tex]\leq 30[/tex]

Bringing the parameters together; we have

[tex]2.5p + 4m \leq 30[/tex]

The system of inequalities that represents the situation is [tex]2.5x+4y\leq 30[/tex] and this can be determined by using the given data and arithmetic operations.

Given :

A postcard book costs $2.50 and a magnet costs $4.00.Shandra can spend up to $30 all together.

Let the total number of postcards be 'x' and the total number of magnets be 'y'. The following steps can be used to determine the inequalities that represent the situation:

Step 1 - Multiply 2.5 with x.

2.5x

Step 2 - Multiply 4 with y.

4y

Step 3 - Now, add the above two expressions.

2.5x + 4y

Step 4 - Now, apply the inequality.

[tex]2.5x+4y\leq 30[/tex]

The system of inequalities that represents the situation is [tex]2.5x+4y\leq 30[/tex].

For more information, refer to the link given below:

https://brainly.com/question/13101306

Consider the function. f(x) = -2/3x - 24 Which conclusions can be drawn about f^-1(x)? Select two options.
f^-1(x) has a slope of -2/3
f^-1(x) has a slope of . f^–1(x) has a restricted domain.
f^-1(x) has a y-intercept of (0, –36).
f^-1(x) has an x-intercept of (–36, 0).
f^-1(x) has a range of all real numbers.

Answers

It’s D&E because that’s what it is what it is

Simplify 12 to the 3rd over 12 to the 7th

Answers

Answer:

0.0000482253

Step-by-step explanation:

imagine an investigation in which 40 students were asked to determine their chronotype by choosing from among four chronotypes instead of three: morning person, night person, neither, or both. If there is no relationship between chronotype and birth month, about what fraction of the students would you expect to pick the chronotype that matches their birth month? why do you think this?

Answers

Step-by-step explanation:

A chronotype is a behavioral manifestation of an underlying circadian rhythms of the myriad physical processes.

The chronotype word may be defined as an individual's natural tendency to remain active mostly at certain times of the day. Some people remain active and alert in the early time of the day and some are alert and active in the late night.

The chronotypes are : Morning person, night person, neither/both.

It is assume that the birth month and year of a person influences his or her chronotype. But if birth month is not related to theses personality traits of a person, then it can be expected that nearly 1/3rd of the fraction of the students in class picks the chronotype which corresponds to their birth type.

A point where 2 rays meet to form an angle

Answers

It would be a vertex

-2.75 is classified as?Select all that apply Natural Number Whole Number Integer Rational Number

Answers

Answer:

Rational Number

Step-by-step explanation:

It is not a natural number as natural numbers are the counting numbers we use and therefore only encompass positive integers,which - 2.75 is not. Whole numbers and integers do not include decimals and fractions, therefore - 2.75 is not included either does to its decimal. Finally it is a rational number because it can be properly expressed as a fraction (-2.75/1). Therefore it is just a rational number from this list.

Hope this helped!

-2(v- 2) =-3 -22
What’s the answer?

Answers

Answer:

v= 29/2

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−2(v−2)=−3−22

(−2)(v)+(−2)(−2)=−3+−22(Distribute)

−2v+4=−3+−22

−2v+4=(−3+−22)(Combine Like Terms)

−2v+4=−25

−2v+4=−25

Step 2: Subtract 4 from both sides.

−2v+4−4=−25−4

−2v=−29

Step 3: Divide both sides by -2.

−2v

−2

=

−29

−2

v=

29/2

John bought a 4-year certificate of deposit for $9.800 that has an interest rate of 3.255 % compounding monthly
How much interest will he earn after the 4 years?

Answers

Answer:

hi

Step-by-step explanation:

want to start a conversation

The Difference of a number and nine

Answers

Answer:

3+3+3=9 Slove this

Step-by-step explanation:

Mark as Brainliest

Please Help quickly! I need an explanation please. 50 points and will mark brainliest !

Answers

Yes, you are correct!

8x⁴-6x³+2/2x²+3

= 4x² + -6x³-12x²+2/2x²+3

= 4x² - 3x + -12x²+9x+2/2x²+2

= 4x² - 3x - 6 + 9x+20/2x²+3

Best of Luck!

Do the points shown represent additive inverses? Explain why or why not.

Answers

Answer:

Yes additive inverse is two complete opposite numbers if added = 0

Step-by-step explanation:

Answer:

The points on the number line do represent additive inverses. 3 and −3 are a zero pair, and when added they equal zero. The two numbers are the same distance from zero but in opposite directions.

Step-by-step explanation:

e d g e n u i t y . . . hope this helped :p

What is the value of 3x2+y3 when x=2 and y=−2?

Answers

Answer:

6

Step-by-step explanation:

First step is to plug in x=2 and y=-2

3(2)2+(-2)3

Remember PEMDAS

Parentheses first: multiply the 3(2)

6(2)+-6

Multipication second: 6(2)

12+-6

Lastly addition: 12+-6 (pay attention to the negative-that means we actually subtract)

Gives us 6

Hope this helps :)

5.75 , 7.75 , 9.75 , 11.75 is a Non linear sequence ? is it true or false

Answers

Answer:

false because each go up by two and I didnt even look it up

the slope-intercept form of an equation is y = mx + b. rewrite the equation in terms of the slope m

Answers

Answer:

[tex]\displaystyle m=\frac{y-b}{x}[/tex]

Step-by-step explanation:

We are given the equation:

[tex]y=mx+b[/tex]

And we want to rewrite it in terms of m.

We can subtract b from both sides:

[tex]y-b=mx[/tex]

Finally, dividing both sides by x yields:

[tex]\displaystyle m=\frac{y-b}{x}[/tex]

In conclusion:

[tex]\displaystyle m=\frac{y-b}{x}[/tex]

factor 25m64−81n16 (w/ screenshot)

Answers

Answer:

(5m^32 -9n^8) (5m^32 +9n^8)

Step-by-step explanation:

[tex]25m^{64}-81n^{16}\\\\\mathrm{Rewrite\:}25m^{64}-81n^{16}\mathrm{\:as\:}\left(5m^{32}\right)^2-\left(9n^8\right)^2\\\\=\left(5m^{32}\right)^2-\left(9n^8\right)^2\\\\\mathrm{Apply\:Difference\:of\:Two\:Squares\:Formula:\:}\\x^2-y^2=\left(x+y\right)\left(x-y\right)\\\\\left(5m^{32}\right)^2-\left(9n^8\right)^2=\\\left(5m^{32}+9n^8\right)\left(5m^{32}-9n^8\right)[/tex]

For your goal what is 1.834597/26881

Answers

Answer:

0.00006824883

Step-by-step explanation:

right?

Marty drew a model of the school library. The total area of the floor is 132 square centimeters. What is the area of the shaded part of the model shown below?

Answers

Answer:

Step-by-step explanation:

116

The area of the shaded part of the model shown below will be 72 square cm.

What is an area of a rectangle?

Area of a rectangle is the product of its length and width.

If a rectangle has a length of L units and a width of W units, then

Area = L × W squared units.

Marty drew a model of the school library.

The total area of the floor is 132 square centimeters.

Then the area of the shaded part of the model shown below will be

Area = 132 - 10 x 6

Area = 132 - 60

Area = 72 square cm

Then the correct option is C.

Learn more about the area of a rectangle here:

https://brainly.com/question/4887838

#SPJ5

HELP ME PLZ ! Solve for x

Answers

Answer:

x = -1/3 - 3/2y

Step-by-step explanation:

Step 1: Write out equation

3y + 2x = -1

Step 2: Subtract 3y on both sides

3y - 3y + 2x = -1 - 3y

2x = -1 - 3y

Step 3: Divide both sides by 2

2x/2 (-1 - 3y)/2

x = -1/3 - 3/2y

Answer:

Hey there!

3y+2x=-1

2x=-3y-1

x=-3/2y-1/2

Let me know if this helps :)

What equation matches this situation?
—John wants to buy an MP3 Player that costs $30. How much change did he receive
if he gives the cashier $40–

Answers

the first box should be correct
30 + c = 40

I NED HELP FAST! Due tomorrow!! Ways to represent relations!

Answers

1.1: Four Ways to Represent a Function.•Determine whether a relation represents a function.

•Find the value of a function.

•Determine whether a function is one-to-one.

•Use the vertical line test to identify functions.

•Graph the functions listed in the library of functions

Step-by-step explanation:

Solve quadratic equation by completing the square 9x²=4 please help me answer this

Answers

Answer:

[tex]9 {x}^{2} - 4 = 0 [/tex]

[tex](3x - 2)(3x + 2) = 0[/tex]

[tex]3x - 2 = 0[/tex]

[tex]3x = 2[/tex]

[tex]x = \frac{2}{3} [/tex]

AND

[tex]3x + 2 = 0[/tex]

[tex]3x = - 2[/tex]

[tex] \times = - \frac{2}{3} [/tex]

9x²-4=0

or,(3x)² +2*3x*3 +(3)² -5 = 18x -5

or,(3x+3)² = 18x

either,3x+3= 18x or, 3x+3=-18x

or, 15x=3 or, 21x=-3

or, x=1/5 or, x=-1/7

The angle of elevation of a flagpole from the foot of a building is 65⁰, what is the angle of depression of the building from the Flagpole?

Answers

Answer:

115°

Step-by-step explanation:

The angles of elevation and depression are supplementary, thus

angle of depression = 180° - 65° = 115°

6y-10y-11=8y-2y+29 step by step?

Answers

Step-by-step explanation:

6y - 10y - 11 = 8y - 2y + 29

6y - 10y +16y - 11 = 8y - 2y + 29 + 16y

-11 = 22y + 29

11 = 22y + 40

-29 = 22y

Not sure yet I think I made a mistake hold up

2. Points A, B, C, D, E, and F are integers. Use the clues to put the points in order
from least to greatest. You don't need to solve the numbers themselves!
• A is less than E.
. E is less than D.
• B is greater than C.
• C is less than A.
• F is the smallest.
• A is greater than B.
Points in order:

Answers

Answer: F C B A E D

For the points (5,4)and (7,8), find the distance between the points and find the
midpoint of the segment.

Answers

Answer:

distance = 2[tex]\sqrt{5}[/tex] or 4.47 in decimal form

midpoint(6,6)

Step-by-step explanation:

Other Questions
Read the information above about two countries, County A and Country B. Which of the two countries shows signs of having a command economy? Explain your answer Capable of producing plant life Ryan has a collection of 220 baseball cards he letshis brother have 1/4 of his collection until 20% of his collection to the baseball card shop she takes 15 cards to school to give his friend how many baseball cards remaining Ryan's collection What is the present value of the following cash flows at a discount rate of 9 percent?year 1: 100,000 year 2: 150000 year 3: 200,000 A population of salamanders lives near a stream. A severe drought dries up the flow of the stream. What is this effect on the salamander population called? Group of answer choices: emigration limiting factor immigration biotic factor an apple orchard sells apples in a bags of 10. the orchard sold a total of 20,430 apples in one day. how many bags of apples was it solve the equation for x. x/3 = (2x + 3)/7A. B. 2 C. 3 D. 3/7 E. -3 In what way does this passage most use specific description?Read the passage from Heracles.Ancient peoples believed in a pantheon of gods. To theancient Greeks, the gods possessed humancharacteristics, including their weaknesses, such asvanity, greed, jealousy, vengefulness, and cruelty. Intheir stories, there was regular interaction between godsand humans, as well as demigods, who were theoffspring of a union between a god and a mortal. Thus,many myths have to do with the struggle between them.Options : Which of these is an opinion? Press enter to interact with the item, and press tab button or down arrow until reaching the Submit button once the item is selectedAConstitution Day and Citizenship Day is a fun holiday. BThe U.S. Constitution was signed in Philadelphia. CConstitution Day and Citizenship Day is September 17. DThe U.S. Constitution was signed in 1787. Little Women by Louisa May Alcott (excerpt) "Meg, I wish you'd go and see the Hummels. You know Mother told us not to forget them," said Beth, ten days after Mrs. March's departure. "I'm too tired to go this afternoon," replied Meg, rocking comfortably as she sewed. "Can't you, Jo?" asked Beth. "Why don't you go yourself?" asked Meg. "I have been every day, but the baby is sick, and I don't know what to do for it. Mrs. Hummel goes away to work, and Lottchen takes care of it. But it gets sicker and sicker, and I think you or Hannah ought to go." Beth spoke earnestly, and Meg promised she would go tomorrow. "Ask Hannah for some nice little mess, and take it round, Beth, the air will do you good," said Jo, adding apologetically, "I'd go but I want to finish my writing." "My head aches and I'm tired, so I thought maybe some of you would go," said Beth. "Amy will be in presently, and she will run down for us," suggested Meg. So Beth lay down on the sofa, the others returned to their work, and the Hummels were forgotten. An hour passed. Amy did not come, Meg went to her room to try on a new dress, Jo was absorbed in her story, and Hannah was sound asleep before the kitchen fire, when Beth quietly put on her hood, filled her basket with odds and ends for the poor children, and went out into the chilly air with a heavy head and a grieved look in her patient eyes. 2 Select the correct answer. Read the passage. Which sentence best describes Beth? A. Beth enjoys helping poor people. B. Beth is skilled at treating sick people. C. Beth is more dutiful than her sisters. D. Beth is kind, but her sisters are cruel. The idea of self government is present in the first three words if the us constitution. What are those words correct sentences:He is younger than me What is the x-value in the solution to this system of linear equations? 2x y = 11 x + 3y = 5 what are the differences and similarities of smooth, skeletal, and cardiac muscles?? Your computer has been attacked and overtaken by a hacker. The hacker has control over your computer and can now use it to launch attacks on other computers and systems. Your computer is known as a ____ computer. _______, son of Phillip ll, conquered the Persian Empire and unshered in the Hellenistic era. Which best states how information in Team Moon and the NASA article are the same? Both give information about the moon landing of the Apollo 11 space mission. Both give detailed information about problems faced during the moon landing. Both give information about the entire Apollo 11 flight from launch to landing. Both give detailed information about the astronauts feelings during the flight. Type the Word Definition Academic integrity is the idea that all academic activities should be completed with the highest levels of honesty and truthfulness. can someone help me please ??!! 79,000 people live in a circular region with a population density of 513 people per square mile. What is the radius of the region