# Ariel

Most popular questions and responses by Ariel-
## Science

Which kind of pollution is illustrated by a pipe gushing polluted water into a river? A. Point source B. Nonpoint source C. Carbon source. D. Resource source

*asked on January 28, 2015* -
## Geometry

11-1 Lines that Intersect Circles 8. The International Space Station orbits Earth at an altitude of 240 miles. What is the distance from the space station to Earth's horizon to the nearest mile?

*asked on March 19, 2012* -
## Science

You are creating a carbon cycle poster. which object could you add to the image as another example of combustion of fossil fuels? A. the sun B.a buzzard eating a dead animal C.a person driving a car D.a scientist digging up fossils My answer is A is that

*asked on November 10, 2015* -
## Science

A student is trying to identify the different forms of energy described in the following chart: Form of Energy Description Examples Energy A energy that travels in waves through space light radio waves Energy B energy that depends on the height of an

*asked on November 11, 2015* -
## English

17. For most academic writing, the types of evidence preferred include A. a combination of assertions and first-hand experiences. B. personal observations and opinions. C. facts, statistics, and expert testimony. D. general statements and quotations by

*asked on February 6, 2018* -
## Physics

Nora rides a bicycle for 5 min on a curvy road at a constant speeed of 10 m/s . Describe noras ride in terms of position, velocity, and acceleration, compare the distance she rides and her displacement.

*asked on March 25, 2013* -
## Science

How do lawmaker make good environmental decisions? A. By relying on the short-term benefits of an environmental issue. B. By weighing down the costs and benefits of an environmental issue C. By relying only on the economical impact of an environmental

*asked on January 28, 2015* -
## Geometry HELP

The lateral surface area of a regular pyramid is 160 cm2 and the perimeter of the base is 40 cm. What is the slant height? a.) 4cm b.) 8cm c.) 10cm

*asked on June 4, 2010* -
## Geometry HELP

The lateral surface area of a regular pyramid is 160 cm2 and the perimeter of the base is 40 cm. What is the slant height?

*asked on June 4, 2010* -
## QMB2100

Chicken Delight claims that 90 percent of its orders are delivered within 10 minutes of the time the order is placed. A sample of 70 orders revealed that 60 were delivered within the promised time. At the .02 significance level, can we conclude that less

*asked on July 29, 2013* -
## Consumer Math Check

1. Money paid to a worker as a reward for good service is called ____________. =a.)Tips b.)Commission c.)Piecework 2. A ____________ is a record of time a worker starts and ends each day. a.)Weekly timecard =b.)Daily log c.)Pay period 3. ____________ is

*asked on September 16, 2010* -
## Organic Chemistry

Some 2-methyl-2-butene may be produced in the reaction as a by-product. Give a mechanism for its production.

*asked on November 29, 2011* -
## Geometry HELP

Find the area of the parallelogram.( with base(s)=10 and the side length(s)=6cm. I don't know the height or area so how do I get my answer? here are the multiple choice answers. a.)15âˆš3 cm^2 b.)15âˆš2 cm^2 c.) 30âˆš3 cm^2

*asked on June 9, 2010* -
## math

what is the worlds most musical fish in pizzazz book c

*asked on September 10, 2013* -
## trig

A guy wire runs from the ground to a cell tower. The wire is attached to the cell tower 150 feet above the ground. The angle formed between the wire and the ground is 40° (see figure). (Round your answers to one decimal place.)

*asked on June 20, 2012* -
## Geometry

11-1 Lines that Intersect Circles 15. Olympus Mons's peak rises 25 kilometers above the surface of the planet Mars. The diameter of Mars is approximately 6,794 kilometers. What is the distance from the peak of Olympus Mons to the horizon to the nearest

*asked on March 19, 2012* -
## Physical Science

Two identical beakers are both half filled with a liquid. Beaker A contains water and Beaker B contains a liquid that is denser than water. Which of the following is FALSE? a. The pressure at the bottom of Beaker B is greater than that at the bottom of

*asked on March 20, 2012* -
## Government Check

What was the name of the discriminatory laws enacted in response to the 13th, 14th and 15th Amendments? a)Separate but Equal Laws *b)Jim Crow Laws c)Dred Scott Laws

*asked on July 4, 2010* -
## Math Problems

1.)Kamman VanMarko Plumbing equipment sales Commission rate: 9 1/2% Annual pay: $17,496 Month's sales: $2,460 What is the monthly pay? a.)$1,691.70 =b.)$1,458 c.)$3,918 2.) Doreen Nathan Cosmetic sales Commission rate: 13 1/2% Month's sales: $4,230 What is

*asked on September 16, 2010* -
## Math

Arley’s Bakery makes fat-free cookies that cost $1.60 each. Arley expects 25% of the cookies to fall apart and break. Assume that Arley can sell the broken cookies for $1.50 each. Arley wants a 55% markup on cost and produces 200 cookies. What price

*asked on March 8, 2019* -
## English

20. Which of the following is not an objective of synthesizing sources? A. Combining opinions and general statements B. Exploring different points of view C. Reviewing key ideas on a topic D. Understanding the topic in depth 19. Which type of Internet

*asked on February 9, 2018* -
## Geometry

20. The wheelchair ramp at the entrance of the Mission Bay Library has a slope of 1/18. What angle does the ramp make with the sidewalk? Round to the nearest degree.

*asked on February 26, 2012* -
## chemistry

Calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition from n=5 to n=1 in J.

*asked on February 6, 2017* -
## Algebra

An ice cream shop has 6 flavors of ice cream and 3 toppings. In how many ways can you order a sundae with 1 flavor of ice cream and one topping?

*asked on September 8, 2011* -
## 4th grade

Write a number pattern for 8 starfish if each had 5 arms.

*asked on October 1, 2009* -
## math

write the exponential function y=40e^0.06t in the form y=ab^t. find b accurate to 4 decimal palces. if t is measured in years, give the % annual growth or decay rate and the continuous % growth or decay rate per year.

*asked on June 27, 2012* -
## Chemistry

When copper (II) nitrate reacts with sodium hydroxide, copper (II) hydroxide is produced. How many grams of copper (II) hydroxide can be prepared from 2.7 grams of copper (II) nitrate reacting with sodium hydroxide?

*asked on July 7, 2019* -
## Intro to Chemistry

How do balance this equation K2S+CuSO4

*asked on October 8, 2009* -
## math

write the exponential function y=71(1.19)^t in the form y=ae^kt. find k accuarate to 4 decimal places. find the exact annual growth rate and the continuous % growth rate accurate to 2 decimal places.

*asked on June 27, 2012* -
## Organic Chemistry

Look up the density of n-butyl chloride (1-chlorobutane). Assume that this alkyl halide was prepared instead of the bromide. Decide whether the alkyl chloride would appear as the upper or lower phase at each stage of the separation procedure: after the

*asked on November 28, 2011* -
## Plz Check My Geometry

Out of 30 questions these few I struggled with. I put what I feel was right but to be sure I would like some one to check my answers and if there wrong redirect me on how to get the correct answer.( after the = is the answer i think it is. 1.) Given points

*asked on June 9, 2010* -
## ENGLISH/THE MARK OF THE BEAST

WHAT LESSON OR MEANING DO YOU THINK THIS STORY HELD FOR THE BRITISH AUDIENCE OF THE VICTORIAN ERA?

*asked on April 12, 2011* -
## Geometry HELP

Which set of points are collinear? a.)A(-1,5); B(2,6); C(4,7) b.)A(0,0); B(1/2,3); C(1,5) c.)A(-4,-2); B(0,-4); C(2,-5)

*asked on June 12, 2010* -
## Geometry Check

Which set of points are collinear? a.)A(-1,5); B(2,6); C(4,7) b.)A(0,0); B(1/2,3); C(1,5) c.)A(-4,-2); B(0,-4); C(2,-5) when i graph them they all look straight to me but the one I pick is A(-1,5); B(2,6); C(4,7)

*asked on June 12, 2010* -
## Algebra 2

A company manufactures bicycles in 8 different styles. Each style comes in 7 different colors. How many different bicycles does the company make?

*asked on May 21, 2010* -
## Physics

A girl starts from rest and reaches a walking speed of 1.4 m/s in 3.0 s. She walks at this speed for 6.0 s. Girl then slows down and comes to a stop during a 10.0 -s period. What was her acceleration during each of the 3 time periods? Her acdeleration

*asked on March 25, 2013* -
## math

ok this is in my practice book. there are 33 students in the chess club. there are five more boys than girls in the club. write and solve a system of equations to find the number of boys and girls in the chess club?

*asked on December 6, 2011* -
## Geometry

38. For maximum accessibility, a wheelchair ramp should have a slope between 1/16 and 1/20. What is the range of angle measures that a ramp should make with a horizontal line? Round to the nearest degree.

*asked on February 26, 2012* -
## math

Julio's father is 4 times as old as Julio. The sum of their ages is no less than 55. Enter an inequality that can be used to represent this situation in the first box, where x represents Julio's age. Enter the youngest age Julio can be in the second box.

*asked on October 3, 2016* -
## Algebra

which of following best define the two quantities that are measure to find the call rate phone company? A.the quantity of price measured in dollars depends on the quantity of time measured in minutes B. the quantity measured in minutes depends on the

*asked on September 15, 2015* -
## Plz Check My Geometry

Out of 30 questions these few I struggled with. I put what I feel was right but to be sure I would like some one to check my answers and if there wrong redirect me on how to get the correct answer.( after the = is the answer i think it is. 1.) Given points

*asked on June 9, 2010* -
## MLA English

1. The MLA format for citing a book has four parts, beginning with the author’s name. What appears in the fourth position? A. Place of publication B. Date C. Publisher D. Medium 2. Which of the following is a true statement about an MLA Works Cited page?

*asked on February 7, 2018* -
## Social studies

explain the reasons for the proclamation of 1763. The proclamation of 1763 was created on October 7, 1763 by king George the III. The proclamation of 1763 was an attempt to avoid the colonial balance with the Native Americans by creating Western

*asked on November 8, 2015* -
## Physics

A truck driver travels 55 km in 1 hour. He then drives a speed of 35km/hr for 2 hrs. Next, he drives 175 km in 3 hrs. What was his average speed? Should i add up the total distance and total time taken then solve?

*asked on March 25, 2013* -
## Physics

A friend tells u he is 30 m from the fountain in the middle of the city. Explain why u cant identify his position from this description. Is it correct to say : cz theres no direction and i don't know where os the exact position of the fountain

*asked on March 25, 2013* -
## Physics Check

1.)The making of the nuclear reactor was an advance in a)Science *b)Technology c)none of the above 2.)The development of the airplane was an advance in a)Science b)Technology *c)none of the above 3.)The discovery of gravity was an advance in *a)Science

*asked on July 2, 2010* -
## Chemistry

Anyone able to balance/do the equation: C8H7O2COOH + NaOH -> I can't figure out the products. C8H7O2COOH + NaOH =>C8H7O2COONa + H2O acid + base ==> salt + H2O Merci buckets. :D Oui, oui! Oui, oui! is C8H7O2COONa an acidic salt or basic salt?

*asked on October 26, 2006* -
## Physical Science

During a storm, the wind exerts a 150-N force on a window that measures 1.00 m by 0.50 m. The outside air pressure is 101 kPa. What pressure, in pascals, does the wind exert on the window? a. 75 Pa b. 150 Pa c. 1.5 x 10^3 Pa d. 3.0 x 10^2 Pa e. 3.0 x 10^5

*asked on March 20, 2012* -
## MLA

7. When a block quotation is used in a research paper, punctuation _______ the parenthetical citation. A. is set off by a comma from B. precedes C. is omitted from D. follows 8. It's necessary to use a/an _______ when a quotation is introduced by a verb.

*asked on February 7, 2018* -
## TO Ms. Sue

If you have do english tutoring, when you have a chance can you review my "English 10 HELP" posting please? Writeacher helped me but he said to post the answers I chose so someone could check them and help me further.

*asked on June 13, 2010* -
## American Gov't

I'm not sure which to pick? What is the term limit for senators? Two terms=not correct Four terms= not correct Six terms=? There are no term limits=? Iknow its not the first two but in my text material it says every 6 years but then again it also says

*asked on August 3, 2010* -
## english

27. In the story “In the Shadow of War,” why did Omovo refuse money from the soldiers?

*asked on January 20, 2012* -
## physics

A stone is thrown upward a 20 m/s. It is caught on its way down 5.0 m above where it was thrown. How fast was it going when it was caught?

*asked on October 1, 2014* -
## Social Studies

what was the purpose of the constitutional convention held in philadelphia in 1787? A.To sign the treaty of paris B.To select the nation's new president. C. to revise the Articles of Confederation D.to draft a declaration of independence My answer is c

*asked on November 8, 2015* -
## U.S. government

how is the constitutional principle of federalism reflected in the formal amendment process?

*asked on March 25, 2011* -
## English check

1.)Supported the ideas of plainness, divine mission, and grace =a.)The North--Puritanism b.)The South---Gentlemen Planters c.)Both 2.Came to America to find freedom to worship and the Promised Land =a.)The North--Puritanism b.)The South---Gentlemen

*asked on August 24, 2010* -
## math/algerbra

Which of the following points would fall on the line produced by the point-slope form equation y + 4 = 2(x - 3) when graphed?

*asked on February 12, 2019* -
## Chemistry

In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure. If a pressure of 47.0 bar is applied to seawater, what will be the final concentration of the seawater at 20 °C when reverse

*asked on February 19, 2012* -
## Geometry HELP

1.)In the figure above, PQRS is an inscribed quadrilateral, and the measure of arc RSP=206º. What is mâˆ PST? a.)103º b.)206º c.)360º

*asked on June 12, 2010* -
## Statistics

Billy Isastar, a famous basketball player, is not a very good free throw shooter. He manages to connect on 65% of his attempts. What is the probability that the first free throw Johnny hits in a game is on his fourth attempt? a. .015 b. .028 c. .179 d.

*asked on March 22, 2017* -
## Physics Check

1.)To reduce the force of impact you could a)Extend the duration of the time of impact b)Decrease the duration of the time of impact c)Increase the mass of the moving object =d)None of the above 2.)What happens when you lengthen the duration of impact?

*asked on July 13, 2010* -
## math

how can we find the area of a figure. how can i find the area of this figure. jf=16 cm I can't see the figure, but generally we need to know the sides and angles in order to calculate the area.

*asked on September 25, 2006* -
## Physics

A boy throws a ball with an initial speed of 40.0 m/s. The angle of the thrown ball is 33.0° above the horizontal.(Neglect the height of the boy and air resistance.) (a) What is the ball's speed in the horizontal direction just before it hits the ground?

*asked on February 9, 2012* -
## Chemistry

Consider the reaction: 2CO2(g)=2CO(g) + O2(g). A reaction mixture in a 5.0 L flask at a certain temperature. At equilibrium there are 85 g of CO2(g), 1.20 g of CO, and 0.688 g of O2(g). Calculate Kc.

*asked on February 27, 2011* -
## Chemistry

Consider the reaction: 2CO2(g)=2CO(g) + O2(g). A reaction mixture in a 5.0 L flask at a certain temperature. At equilibrium there are 85 g of CO2(g), 1.20 g of CO, and 0.688 g of O2(g). Calculate Kc.

*asked on February 27, 2011* -
## earth space science

A substance that cannot be broken down into simpler substances by physical or chemical needs is called an

*asked on October 11, 2010* -
## Government Check

1.)What is the defining right of a representative democracy? The right to petition the government =The right to vote The right to freedom of religion The right to a jury trial 2.)Slavery was prohibited by _____. the Bill of Rights the Constitution =the

*asked on June 29, 2010* -
## Government Check

1.)Why was it important to the Founding Fathers to justify their actions by evoking traditional English rights? a.)Because they were extreme reactionaries who disagreed with the ideals of the Enlightenment =b.)Because, as members of the social elite, they

*asked on June 23, 2010* -
## math

find the distance between points P(7,4) and Q(1,2)to the nearest tenth

*asked on December 7, 2011* -
## Government Check

What is the primary claim made by those who oppose hate crimes legislation? a)There is no way to catch all perpetrators of hate crimes, so all perpetrators should be punished equally. =b)There is no way to determine the motivations behind a crime, so all

*asked on July 6, 2010* -
## Check My Anatomy (stuck)

1) If a person has neither of the two blood antigens, what is his or her blood type? A B O AB (i chose o) 4) Testosterone is produced in the? testes bulbourethral glands prostate glands seminal vesticles (i chose vesticles) 6. What type of cell is capable

*asked on December 4, 2014* -
## chemistry hw

SOMEONE PLEASE HELP AND CONFIRM THE RIGHT ANSWER FOR ME...I HAVE ONE MORE ATTEMPT TO THIS PROBLEM AND I NEED HELP!!!!! PLEASE!!!!!!!!!!!!!!!!!!!! THANKS! In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution

*asked on February 19, 2012* -
## Physics

What average force is required to stop an 1700 kg car in 7.0 s if the car is traveling at 75 km/h?

*asked on September 8, 2010* -
## Geometry HELP

Using coordinate geometry to prove that the diagonals of a square are perpendicular to each other. Given: Vertices are at A(0,0), B(a,0), C(a,a) and D(0,a) Slope of AC=1; Slope of BD=-1 type your proof. (I've gotten help on this earlier but I still don't

*asked on June 11, 2010* -
## Trigonometry

Write the following as an algebraic expression in u, u>0. cos(arctan(u/sqrt2))

*asked on April 3, 2018* -
## Math

A box of tacks weighs 120 grams when full, when half full it weighs 70 grams. How many grams does the box weigh when empty?

*asked on May 16, 2012* -
## Math

What volume, in ml, of a 60% of HCl acid solution must be added to 100 ml of a 30% HCl solution to make a 36% HCl solution. We need 2 alegabreic (?) equations. The first I can get is: 0.36x - 0.60y = 100ml (this is probably wrong)? Blah. I can't get the

*asked on January 31, 2007* -
## Gravi prob chem

In the gravimetric determination of barium as BaCrO4, what weight of sample must be taken so that the weight of the precipitate in milligrams multiplied by 100 will equal the % Ba in the sample?

*asked on January 16, 2012* -
## Government Check

1.)Which of the following is an example of the formal amendment process? a)The gradual expansion of the President's war-making power as commander-in-chief =b)The 1920 change to the Constitution that gave women the right to vote c)The 1954 Supreme Court

*asked on June 29, 2010* -
## Math

Cougar Pizza Parlor has just opened up across the street. You are thinking of inviting some friends over for pizza and ordering from Cougar's. You want to get the most pizza for the money. The menu shows the following prices. 6- inch round pizza....$7.50

*asked on February 18, 2016* -
## Physics Check

A ball is rolling across the top of a billiard table and slowly rolls to a stop. How would Galileo explain the motion of the ball as it stopped? a)The ball's natural state is at rest =b)The ball stopped because it ceased to be pushed c)The ball stopped due

*asked on July 12, 2010* -
## Government

Select the answer that is closest in meaning to the given word or phrase. Popular sovereignty: a.)Taxation without representation b.)Social contract c.)Democracy =d.)Limited government

*asked on June 23, 2010* -
## RE English 10 HELP

I posted these questions earlier for help and Writeacher wanted me to post what I chose as answers so someone could check/help me. * is the answer I chose. 2.)Your answer is incorrect. You are a careless person. Faulty Cause and Effect *Stereotype Red

*asked on June 13, 2010* -
## Math

Warren walked 4 kilometers down east and then 5 kilometers down south. Next, he walked another 4 kilometers down east. Then he turned again, and walked 5 kilometers down south. He stopped there. To the nearest kilometer, how far is he from the starting

*asked on February 16, 2016* -
## Geometry

Help please. I don't know how to solve step by step!! What is the range of possible values for x? The diagram is not to scale. h t t p :/ / i . i m g u r.c o m/ s n S v w .p n g

*asked on January 14, 2015* -
## physics

if a person is pushing a cart with a force of 40 Newtons and it accelerates at 0.5 m/s2 , what is the mass of the cart ?

*asked on April 13, 2012* -
## Physics HELP

A railroad car with a mass of 2000kg is rolling at a speed of 15m/s. What force would be required to stop the car in 10 seconds? a)13.3 N b)2,000 N =c)3,000 N d)30,000 N

*asked on July 14, 2010* -
## Geometry HELP

Find the area of the parallelogram. (base(s)=10cm, slant/side length(s)=6cm, h=? and the angle measure is 60degrees. a.)15âˆš3 cm^2 b.)30âˆš3 cm^2 c.)15âˆš2 cm^2 I think it's 30âˆš3 cm^2.

*asked on June 10, 2010* -
## Plz Check my Geometry(sOo0n)

1.) Given points A(-4, 5), B(2, 3), C(0, 4) and D(5, 0), decide if AB and CD are parallel, perpendicular or neither. =Neither 2.)Given the equations y = 1x + 7 and y = 3x - 2, decide whether the lines are parallel, perpendicular or neither. =neither 3.)

*asked on June 9, 2010* -
## precalculus/trigonometry

Find a formula for the given linear function. The graph of h intersects the graph of y = x^2 at x = -2 and x = 4

*asked on June 10, 2012* -
## Physics

tarzan has a mass of 100 kg and is 200m above the group and wants to slide down a nearby vine. the vine can only hold 400n without breaking. assuming he starts from rest and moves with a constant acceleration what is the longest time it can take for Tarzan

*asked on March 14, 2012* -
## algebra

(50 divided by 10)3power x 2+6x 0.6 =

*asked on December 3, 2010* -
## English/Reading 10 HELP

TO BUILD A FIRE Jack London Day had broken cold and gray, exceedingly cold and gray, when the man turned aside from the main Yukon trail and climbed the high earthbank, where a dim and little-traveled trail led eastward through the fat spruce timberland.

*asked on June 7, 2010* -
## Geometry HELP

A line segment has one endpoint at the coordinate (0, 1) and a midpoint at the coordinate (2, 4). Find the other endpoint. a.)(1, 7) b.)(4, 7) c.)(1, 25)

*asked on June 4, 2010* -
## Math

Which of the following expressions is between 10 and 11?

*asked on February 8, 2018* -
## Math

the graph of the function f(x)=x^2-kx+k+8 touches the x-axis at one point. What are the possible values of k

*asked on October 20, 2011* -
## Physic Check

These are questions I'm unsure about out of 20 for my submission #2. Someone please check soon. My answers have an =. 1.)A ball is rolling across the top of a billiard table and slowly rolls to a stop. How would Galileo explain the motion of the ball as it

*asked on July 12, 2010* -
## Geometry HELP

A line passes through the points K(2a,3b) and R(a,-b). What is the slope? a.)4b/a b.)4ab c.)4a/b

*asked on June 9, 2010* -
## English 10 HELP

The Dream Keeper Bring me all of your dreams, You dreamers, Bring me all of your Heart melodies That I may wrap them In a blue cloudâ€‘cloth Away from the tooâ€‘rough fingers Of the world. Discuss how certain elements are repeated to make a

*asked on June 6, 2010* -
## Physics

Consider eight, eight-cubic centimeter (8 cm3) sugar cubes stacked so that they form a single 2 x 2 x 2 cube. How does the surface area of the single, large cube compare to the total surface area of the individual eight cubes? Report your answer as a

*asked on December 4, 2015*