Willow

Most popular questions and responses by Willow
1. Math

1. Which polygon will always be irregular? A. triangle B. trapezoid** C. square D. hexagon 2. Which statements are always true about regular polygons? (Choose 2) A. All sides are congruent B. Pairs of sides are parallel** C. All angles are congruent** D.

2. Social studies

Does anyone know the answers for the 7th grade Later Civilizations of East Asia Practice for online school

3. Physics

Two charges are located along the x-axis. One has a charge of 6.3 μC, and the second has a charge of −3.4 μC. If the electrical potential energy associated with the pair of charges is −0.043 J,what is the distance between the charges? The value of

4. College Math

A cooler contains 7 cans of cola: 6 regular colas and 4 diet colas. If 3 cans of cola are selected at random, what is the probability that 2 cans of regular cola and 1 can of diet cola are selected?

5. Algebra

A plane traveled 400 miles to Rome and back. The trip there was with the wind. It took 5 hours. The trip back was into the wind. The trip back took 10 hours. - Find the speed of the plane in still air and the speed of the wind.

6. Calculus

SHOW WORK PLEASE!!!!! The displacement (in centimetres) of a particle moving back and forth along a straight line is given by the equation of motion s = 4 sin(πt) + 2 cos(πt), where t is measured in seconds. (Round your answers to two decimal places.)

7. Algebra

A train leaves Danville Junction and travels north at a speed of 75 km/h. Two hours later, a second train leaves on a parallel track and travels north at 125 km/h. How far from the station will they meet? I have no idea what the system of equations would

8. Algebra

A plane traveled 400 miles to Rome and back. The trip there was with the wind. It took 5 hours. The trip back was into the wind. The trip back took 10 hours. - Find the speed of the plane in still air and the speed of the wind.

9. Finite Math

Assume that 3 digits are selected at random from the set {1,3,5,6,7,9} and are arranged in random order. What is the probability that the resulting 3-digit number is less than 700? I know the sample space is P(6,3) but that is all I know. Help!

10. Math

Use the given values to write an equation relati g x,y and z given that z varies jointly with x and y X=3 Y=2 Z=2.4

11. algebra

Christie makes a \$9.25 purchase at the bookstore with a \$20.00 bill. The store has not bills and gives her change in quarters and 50-cent pieces. There are 30 coins in all. How many of each kind are there? Are these the correct equations? x + y = 30 .25x +

12. Physics

A 3.5 × 103 kg car accelerates from rest at the top of a driveway that is sloped at an angle of 16.9◦ with the horizontal. An average frictional force of 4.1×103 N impedes the car’s motion so that the car’s speed at the bottom of the driveway is

13. Algebra

When you reverse the digits in a certain two digit number you increase its value by 27. Find the number if the sum of its digits is 7.

14. Physics

A 3.5 × 103 kg car accelerates from rest at the top of a driveway that is sloped at an angle of 16.9◦ with the horizontal. An average frictional force of 4.1×103 N impedes the car’s motion so that the car’s speed at the bottom of the driveway is

15. Area and Perimeter Shepes

a rectangle has a perimeter of 32cm. one side measures 5cm. calculate the area of the rectangle.show your working.

16. Physics

A 3.5 × 103 kg car accelerates from rest at the top of a driveway that is sloped at an angle of 16.9◦ with the horizontal. An average frictional force of 4.1×103 N impedes the car’s motion so that the car’s speed at the bottom of the driveway is

17. Math

There are 12 girls and 9 boys in Mrs. Johnson's classroom. She said that if she randomly selects one student from her classroom the probability that it is a boy is 3/4. Which mistake did Mrs. Johnson make? A. She divided the number of girls by the total

18. Algebra

Evaluate the function. h(a) = 2^a+1; Find h(a - 4)

19. Algebra

Evaluate the function. g(n) = -3n^2 + 2; Find g(n+3)

20. Algebra

h(n) = -3 • 4^2n+1; Find h(2n)

21. Math

Evaluate the function. h(n) = -3 • 4^2n+1; Find h(2n)

22. math, algebra

Tina is trying to drop a water balloon from her balcony onto a rectangular raft in the pool below. The pool is 25 feet long and 15 feet wide. The raft is 6 feet long and 2 feet wide. What is the probability that Tina will hit the raft with the water

23. Algebra

The perimiter of a lot is 190 meters. The width is one-fourth of the length. Find the dimensions. Here's my system of equations: 2w + 2L = 190 1/4L = w What would I do from here? I prefer the elimination method. Would I multiply the second equation by 4?

1. Social studies HELP

16.Describe how oral traditions, proverbs, and music are key features of Africa's cultural legacy. Oral traditions are messages that are transmitted orally from one generation to another. The messages may be passed down through speech or song and may take

posted on May 12, 2019
2. History

Thx

posted on May 8, 2019
3. Science

Structure, Function, and Information Processing 1. Enzymes are important because they Speed up chemical reactions 2. Which term refers to the diffusion of water through a membrane? Osmosis 3. What happens in the phloem? Food moves down from leaves. 4. When

posted on February 20, 2019
4. Science

Lesson 6: Cells Working Together 1. Which of the following distinguishes living things from nonliving things? A. Living things are made up of cells; nonliving things are not. 2. Why do living things need water? C. Living things need water because many of

posted on January 30, 2019
5. math

Algebra Readiness (Pre-Algebra) B Unit 1: Functions Lesson 11: Comparing Functions 1. a 2. c 3. c 4. b 5. b e 6. a 7. a

posted on January 28, 2019
6. language

Lesson 16: Comparing Fiction and Nonfiction Language Arts 7 A Unit 3: Exploring Ideas 1. B 2. D 3. C 4. B

posted on November 27, 2018
7. science

18. Compare and contrast spiral and elliptical galaxies. (Make at least 2 comparisons.) A Spiral galaxy consists of a flat, rotating disk containing Stars, gas and dust and a central concentration of stars known as bulge. Elliptical galaxies range in shape

posted on May 23, 2018
8. science

For Science 6 B Unit 4: Lesson 11: Our Solar System Unit Test Mrs. Sue is correct except 14 is multiple choice and the answer is ( D ) 1 A 2 A 3 D 4 C 5 B 6 A 7 C 8 B 9 C 10 B 11 C 12 D 13 D 14 D 15 True 16 False 17 False

posted on May 23, 2018
9. Social Studies Help? Thanks!~ :3

2 different answers...Panama was very mountainous and too much volcanic activity in Nicaragua were geographical obstacles. A political obstacle was the United States had to negotiate with Colombia to obtain the right to build a canal in Panama. They

posted on May 23, 2018
10. Social Studies

Panama was very mountainous and too much volcanic activity in Nicaragua were geographical obstacles. A political obstacle was the United States had to negotiate with Colombia to obtain the right to build a canal in Panama. They blasted through tons of

posted on May 23, 2018

Tock is extremely dutiful. Tock believes in the value of time above all else. The Humbug is ignorant about everything. The Humbug acts as a contradiction to Tock.

posted on May 1, 2018
12. corrected LA

Read the following passage from The Cay. “In the morning, the air was crisp and the cay smelled fresh and clean.” What effect does the rainfall have on Phillip and Timothy?....They are filled with new hope that they will soon be rescued. Which of the

posted on December 5, 2017
13. English

1. Read the following passage from The Cay. Then in the afternoon, we went to Punda and stood near the pontoon bridge as she steamed slowly down St. Anna Bay. Many others had come to watch, too, even the governor, and we all cheered as she passed, setting

posted on December 4, 2017
14. ELA

The Cay, Chapters 3–4 1.D 2.B 3.C 4.A

posted on December 1, 2017
15. Language Arts

Mk so the reason everyone is wrong is because 3 of the answers change depending on the user so everyone will have a different turn out with 4, 7, and 8

posted on November 17, 2017
16. math

It's 1.8000

posted on April 12, 2017
17. help plz? 2 questions

C C B A These are 100% correct just took the test.

posted on March 20, 2017
18. Algebra

for the last line, don't you mean -3n^2 and not just 3

posted on September 2, 2016
19. Algebra

thank you

posted on September 2, 2016
20. Algebra

I can't find it Can you post the link

posted on September 2, 2016
21. Algebra

2+5?

posted on August 11, 2016
22. english

Foggy Skyies, thanks! I got 4/4

posted on April 6, 2016
23. Math

Okay so 2 would be A and D? Because it tells you to pick 2 answers

posted on February 11, 2016
24. math, algebra

Thanks!

posted on March 5, 2012
25. math

write a situation thar can be represtented by the algebraic expression \$3.50t.

posted on November 8, 2011
26. College Math

Sorry, I meant to say 10 cans NOT 7.

posted on February 27, 2009
27. math

Sometimes it helps to right separate equations for each person's age. a + 5 = Tisha 2a + 3 = Alex 2tisha = Sara I guess you could have that system of equations be your answer, just pick a variable for each person's name. I'm not exactly sure how you would

posted on February 23, 2009
28. circles

Like I said with awl, I found the circumference forumla, which is: c = pi times diameter OR c = 2 times pi times radius I can't find the area formula. :( Just place in 3 where I said "radius." Hope I helped! :)

posted on February 23, 2009
29. math

The circumference formula is: c = pi times diameter OR c = 2piradius Sorry, I don't know how to make a pi symbol on the keyboard. :) I couldn't find the area formula... but just place 9.3 in where I said radius. Hope I helped! :)

posted on February 23, 2009
30. math

I don't remember the equations exactly, but I know there are equations to find that. Just go an a search engine and type in "circumference equation" or "area equation" and you'll find it.

posted on February 23, 2009
31. Math

Yes, you are correct! :) Post another question if you need any more help. :)

posted on February 23, 2009
32. Algebra

Oh, I kind of skimmed what you said and didn't notice the x-y=2... I'm sorry! Thanks so much though! :) P.S: Is the correct answer 375 miles away from the station, meaning x=5 and y=3?

posted on February 23, 2009

Is there something in particular you don't understand? Or a sentence where you have to underline the adjectives? Then I can help you. P.S: Adjectives are describing words. They usually describe nouns, which are objects. For example: The rabbit was fluffy.

posted on February 23, 2009

Umm... seriously. Tell us what it is, then.

posted on February 23, 2009
35. Algebra

You see, here's what I did. I changed the "t" in the equation that both of you gave me (75t=125(t-2)) to an x so I could use elimination to solve the problem. That made that equation be 125x - 250 = 75x + 75x = 125 y That's where my problem comes along...

posted on February 23, 2009
36. english

Well, "which I thought had lost" at the end of the sentence should be "which I thought I had lost." Unless that was a typo, I don't see any other things that need to be corrected.

posted on February 23, 2009
37. Algebra

Did you get w = 19 and L = 76? Thanks! :)

posted on February 23, 2009