Mathematics College

The length of a rectangle is 3 times the width. The area of this rectangle is 243 feet squared.
What are the dimensions?
Width =____feet (this is the short side)
Length=____feet (this is the long side that is 3 times the width)

Answers

Answer 1

Step-by-step explanation:

width = x

length= 3x

Area = length * width

243=3x * x

3÷243 =3x^2÷3

√81=√x^2

x=9

3x=3*9=27

Width=9

Length=27

Related Questions

17.
Which pair of numbers is relatively prime? *


7 & 21
4 & 15
ОООО
6 & 9
9 & 27

Answers

Answer:

9 & 27

Step-by-step explanation:

since all prime numbers above 5 end in 1,3,7 and 9then to find a prime number between say 70 and 80 the only possibilities are 71,73,77,79

Answer:

9 & 27

Step-by-step explanation:

Plz mark as Brainliest...

Find the distance between A(4, —2) and B(—1, 2).
Round to the nearest tenth.

Answers

The distance between A and B is 5.

Answer:

6.4 to nearest tenth.

Step-by-step explanation:

AB = √[(x2 - x1)^2 + (y2-y1)^2]

= √[(-1 - 4)^2 + (2 - (-2))^2]

= √(25 + 16)

= 6.403

will mark brianliest please help

Answers

Answer:

See below.

Step-by-step explanation:

7x^2 = 343                     Divide both sides by 7

7x^2/7 = 343/7

x^2 = 49                         Take the square root of both sides.

sqrt(x^2) = sqrt(49)

x = +/- 7

Answers

7- 7sqrt(49)- sqrt(49)

I think the last two are kind of iffy. I'm not sure you can call them solutions, but the question probably assumes they are. If you use all four answers and get it wrong, them submit +7 and - 7.  

Find in the missing values to make the equations true.

Answers

Answer: 21

12

Log8(8 is under the log) the answer is 7

Step-by-step explanation:

what is the mean of this data set 8,2,5,12

Answers

Answer:

6.75

Step-by-step explanation:

Add up all the numbers in the data set :

8 + 2 + 5 + 12 = 27

Divide 27 by the total numbers in the data set :

27 ÷ 4 = 6.75

Therefore, the mean if the data set is 6.75

A roadside assistance company gets millions of requests per year, with about a quarter of the requests in
summer and a quarter in winter. Suppose that 12% of all of the summer requests and 15% of the winter
requests are for help with a lockout. A data analyst pulls separate random samples of 200 summer and winter
requests and will look at the difference (summer winter) between the proportion of requests for help with
a lockout in each sample.
What are the mean and standard deviation of the sampling distribution of the difference in sample
proportions?

Answers

Answer: -0.03

sqrt ((0.12 (0.88) / 200) + (0.15)(0.85)/200)

Step-by-step explanation:

The mean of the sampling distribution of the difference in sample proportions is -0.03, and the standard deviation is 0.0321.

What is the standard deviation?

A standard deviation (σ) is a measure of the distribution of the data in reference to the mean.

The proportion of lockout help requests in the summer population is 12% or 0.12, and the proportion in the winter population is 15% or 0.15. The sample sizes are both 200.

Using these values, we can calculate the mean and standard deviation of the sampling distribution of the difference in sample proportions:

Mean = p₁ - p₂ = 0.12 - 0.15 = -0.03

Standard deviation = √[ (p₁ (1 - p₁) / n₁) + (p₂ (1 - p₂) / n₂) ]

= √[ (0.12 (1 - 0.12) / 200) + (0.15 (1 - 0.15) / 200) ]

= √[ (0.000504) + (0.000525) ]

= √[ 0.001029 ]

= 0.0321

Therefore, the mean of the sampling distribution of the difference in sample proportions is -0.03, and the standard deviation is 0.0321.

Learn more about the standard deviation here:

brainly.com/question/16555520

#SPJ2

11) A fitness center charges $5per visit, plus an additional monthly fee of $15.
If Rick visits the gym 15 times in a month, how much would it cost him?
If you can do both that would be great

Answers

Answer:

$90

Step-by-step explanation:

15 × 5 = 75

75 + 15 = 90

$90

Answer:

It would cost Rick $90, if he visted the Gym 15 times in a month.

Step-by-step explanation:

15 x 5 =75

75 + 15 =90

CONVERT THE PERCENTAGES FRACTION 140%​

Answers

Answer:

7/5 simplified

Step-by-step explanation:

Its 7/5 Trust

Brainliest please!

Answer:

14/10 or 7/5

Step-by-step explanation:

Solve this question for brainlest

Answers

I don’t see no question to answer.

If sin(0) = 0.788 , then what is the approximate value of csc(0) ?

Answers

Answer:

It is 1.27

Step-by-step explanation:

[tex] \csc \: x = \frac{1}{ \sin \: x } \\ \csc(0) = \frac{1}{ \sin(0) } \\ if \: \sin(0) = 0.788 \: so \\ \csc(0) = \frac{1}{0.788} \\ \\ \csc(0) = 1.27[/tex]

Thanks for this question :)

Answer: 1.27

I hope that helps!!

In a popular online role playing game, players can create detailed designs for their
character's "costumes," or appearance. Fatoumata sets up a website where players
can buy and sell these costumes online. Information about the number of people who
visited the website and the number of costumes purchased in a single day is listed
below.
126 visitors purchased no costume.
228 visitors purchased exactly one costume.
34 visitors purchased more than one costume.
Based on these results, express the probability that the next person will purchase
exactly one costume as a decimal to the nearest hundredth.
Mk

Answers

Answer: 0.59

Step-by-step explanation:

The probability that the next person will purchase exactly one costume is 0.59.

What is probability?

It is defined as the ratio of the number of favourable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.

Total number of visitors = 126+228+34 = 388

Total number of visitors who purchased exactly one costume = 228

The probability = 228/388 = 0.587 ≈ 0.59

Thus, the probability that the next person will purchase exactly one costume is 0.59.

Learn more about the probability here:

brainly.com/question/11234923

#SPJ2

Justin earns a base salary of $1500 per month at
the jewelry shop. He also earns a 3% commission
on all sales. If Just sold $82,975 worth of jewelry
last month, how much would he make for the
month including his base salary and commission?

Answers

Answer: $1500 + 3% + $82,975= 84475.03

Step-by-step explanation:

Can someone please help ?

Answers

The answer is b because it is in third coordinate

Select the correct answer
The variable p varies directly as the square of q. If p = 24 when q = 4, what is the value of p when q = 10?
3.84
9.6
150
60

Answers

Answer:

C. 150

Step-by-step explanation:

It's right on Plato.

Please I need help fast can’t figure this out

Answers

X=9-1 expiation is to be awarded

Solve for s. -5(2s + 5) = -3s + 4

Answers

Answer:

The answer is -2. Good luck!

Answer:

s=-2

Step-by-step explanation:

-5(2s+2)=-3s+4

-10s-10=-3s+4

-10=-3s+4+10s

-10=7s+4

-10-4=7s

-14=7s

-14/7=s

-2=s

s=-2

A box of 3 picture hangers sells for $2.22. What is the unit rate

Answers

Answer:

0.74 cents each unit piece

Step-by-step explanation:

2.22 ÷ 3 = 0.74

The annual profits for a company are given in the following table, where x represents
the number of years since 2013, and y represents the profit in thousands of dollars.
Write the linear regression equation that represents this set of data, rounding all
coefficients to the nearest hundredth. Using this equation, find the projected profit
(in thousands of dollars) for 2023, rounded to the nearest thousand dollars.
Years since 2013 (x)
Profits (y)
(in thousands of dollars)
0
57
76
2
63
3
107

Answers

20363 is your answer

The following quadrilateral is a parallelogram. Solve for x, y, and z.

Answers

Answer:

Angle X = 73 degrees, Angle Z = 34 degrees, and Angle Y = 146 degrees

Please help meeeeeeeeeeeeeeeeeeeee​

Answers

67 but why couldn’t u just use a calc

Answer:

64 g

Step-by-step explanation:

Lets gather the Info

Amount needed = 161 g

Amount given = 97 g

Lets form an equation:

161 - 97 = x

x in this case is the number of grams needed to fulfill the amount needed.

161 - 97 = 64 g

He needs 64 g of cheese.

If my answer is wrong pls correct me.

If you like my answer and explanation pls mark me as brainliest.

-Chetan K

Find the value of x in the diagram

Answers

Answer:

x = 21

Step-by-step explanation:

Based on the inscribed angle theorem, we would have:

120° = 2(3x - 3)°

Solve for x

120 = 2*3x - 2*3

120 = 6x - 6

Add 6 to both sides

120 + 6 = 6x

126 = 6x

Divide both sides by 6

126/6 = x

21 = x

x = 21

can someone please help me ?? i’ll give brainliest

Answers

Answer:

ABE bc its the same degree angle

Step-by-step explanation:

Answer:

C) angle BEF

Step-by-step explanation:

Vertical angles are angles opposite each other where two lines cross. BEF is opposite of DEH

Evaluate the expression

y+243.8 when y=79​

Answers

Answer
322.8

explanation

Put 79 as y so do

79+243.8 which equals 322.8

PLEASE ANSWER ASAP FOR BRAINLEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
And please say which letters it is, thx!
Jose draws ABC. AB has a length of 10 inches and BC has a length of 15 inches.
Determine whether each measurement could be the length of AC.
Choose Yes or No for each measurement.
a. 4 inches Yes : No
b. 15 inches Yes : No
c. 23 inches Yes : No
d. 5 inches Yes : No
e. 25 inches Yes : No
f. 10 inches Yes : No

Answers

ABC I really need these points thx a lot

Find the missing side length.
AJKL ~ AGKH

Answers

The answer should be 15

A chemist mixed two samples together: a gray liquid that boils at 103°C and a colorless gas that boils at 19°C. She analyzed the results and found two ending substances. One of the ending substances was a pink liquid. This ending substance is made up of the repeating group of atoms shown above. Which of the diagrams to the left shows the repeating groups of atoms that make up the samples the chemist mixed together?

Answers

Answer:

Its C

Step-by-step explanation:

Diagram c to the left shows the repeating groups of atoms that make up the samples the chemist mixed together.

What is atoms?

Atoms are the smallest unit of matter that make up all physical objects. Atoms are composed of three main components: protons, neutrons, and electrons. Protons and neutrons are found in the nucleus of the atom and have a positive charge, while electrons orbit the nucleus and have a negative charge.

here, we have,

we know that,

Atoms can join together to form molecules, which are the building blocks of all matter. Atoms of different elements can join together in different ways to form compounds and these compounds are the basis of all substances. Atoms are also the basis of all chemical reactions and can exist in different physical states, such as solid, liquid, or gas. Atoms can also be combined to form isotopes, which are atoms of the same element with different numbers of neutrons.

To learn more about atoms

brainly.com/question/6258301

#SPJ2

complete question:

11. A chemist mixed two samples together: a brown solid that melts at about 1,300°C and a colorless liquid that melts at about 20°C. She analyzed the results and found two ending substances. One of the ending substances melts at about 250°C. This ending substance is made up of the repeating group of atoms shown above. Which of the diagrams to the left shows the repeating groups of atoms that make up the samples the chemist mixed together?

tom eats 18.7% of his candy he has 300 pieces of candy how much candy does tom have left

Answers

Answer:

He has 244 left

Step-by-step explanation:

18.7% = 0.187

300(0.187) ≈ 56

300 - 56 = 244

Can someone please help me figure out the costing for the serving on this recipe.

Steps on how is on: wikihow.com/cost-a-recipe

Answers

Triangle JKL with vertices J(-5,5), K(5, 7),
and L(2, 3) in the x-axis.

helpp:)))) PLS
Answer the following using >, <, or =. | − 4| ______ |4|

A: <
B: >
C: =

Answers

Answer:

=

Step-by-step explanation:

Because |-4| is basically 4 since its the absolute value of that..

How bad is the heavy traffic? You can walk 15
miles in the same time that it takes to travel 30
miles by car. If the car's rate is 2 miles per
hour faster than your walking rate, find the
average rate of each.

Answers

Answer:

Average rate of car: x+3

Walking rate: x

The equation is  

10/15 = x/x+3

So

x = 6

So

Average rate of car: 9 mph

Walking rate: 6 mph

Step-by-step explanation:

Answer:

Average rate of car: 9 mph  

Walking rate: 6 mph

Step-by-step explanation:

Other Questions
Write a Java program that uses a value-returning method to identify the prime numbers between 2 bounds (input from the user). The method should identify if a number is prime or not. Call it in a loop for all numbers between the 2 bounds and display only prime numbers. Check for errors in input.Note:A number is prime if it is larger than 1 and it is divisible only by 1 and itself(Note: 1 is NOT a prime number)Example:15 is NOT prime because 15 is divisible by 1, 3, 5, and 15; 19 is prime because 19 is divisible only by 1 and 19. Show the work please Theres a picture of my question plz help :) one of the Maya civilization's greatest acconplishments was Fill in with the correct form of ser or estar. Please include the full sentence in your response. Paco y yo___somos______amigos. Yo __estoy_____feliz. T___estas____en la clase de espaol. Vosotros__sois______inteligentes. Ellos_______estan_____cansados. El examen _____es_____fcil. El partido de bisbol ____es______divertido. Juan __________alto. Las chicas________bajas. ________las tres de la tarde. ______el cinco de mayo. _______jueves. Yo _____norteamericano. Nosotros _________de Los Estados Unidos. El concierto _______al estadio(the stadium). _____la primavera. Uds. _________estudiantes. Ella ________profesora. Mis libros________en mi armario. Maria _______chica. Paco _______chico. Yo ________enojado. Paco y Pepe__________amigos. Yo ________bien. Los chicos __________tristes. Nosotros __________simpaticos. Ellos ___________antipaticos. La fiesta _________grande. El perro ________pequeo. La gata _________bonita. The graph solves this system of equations. Enter the solution in the boxes. 2y = 4x + 8 x + y = 5 As a CEO, you are concerned that your firm and the industry in your country are being devastated by foreign imports. Trade lawyers suggest that you file an antidumping case against leading foreign rivals and assure you a win. Would you file an antidumping case or not PLEASE HELP I AM BEING TIMED I NEED THE RIGHT ANSWER AND A EXPLAINTION PLEASE I WILL HIVE YOU THE CROWN In your own words, explain why Frank Mastro believed that pizza would become popular in America. Use details from the text. Exam Lesson Name: American Innovations in theExam Guidelines20. The composer to rose to Dvorak's challenge and used Native American themes in hisWorks was Please help meeeeeeeeeeeeeeeeeeeee Can someone please help me figure out the costing for the serving on this recipe. Steps on how is on: wikihow.com/cost-a-recipe what is the absolute value of -l8| Need help with the answer IF dopaine is not removed from the synaptic cleft, what do youthink happens? tom eats 18.7% of his candy he has 300 pieces of candy how much candy does tom have left Solve the inequality below and identify the correct answer: X - 2 Read the following excerpt from a narrative about growing up in the Dust Bowl in the 1930s:The wind howled across the fields, whipping up a funnel of dust and dirt that stretched as high as Lil could see. The dust devil was heading for them, no doubt. Soon the wooden plank floors of the house would be covered in an ash-gray dust, and everyone would be picking metallic-tasting grit from their teeth. And no one was going anywhere until it was over.What is the effect of the sensory details in this excerpt? A. They paint a realistic view of the narrator. B. They signal a transition from one place to another. C. They develop the plot by showing a conflict among the characters. D. They help the reader feel what it would be like to be trapped inside during a dust devil. In the 1850's, Texas made the biggest impact on the US/world economy by exporting___________.please answer identify 3 reasons why cells divide? please explain.