# sammy

Popular questions and responses by sammy-
## Health-Please Help!!!

1. The functions of the respiratory system are (select all that apply) A. to pump blood to your body B. to deliver oxygen to the body C. to remove carbon dioxide from the body D. to absorb nutrients 2. The dome-shaped muscle that lies below the lungs and

*asked on February 8, 2016* -
## Physics

A constriction in a pipe reduces its diameter from 4.0 cm to 2.0 cm. Where the pipe is wide The fluid velocity is 8.0m/s. Where it is narrow the fluid velocity is:

*asked on December 16, 2010* -
## Mathematics

How to find cube root of 3?

*asked on July 21, 2020* -
## Social Studies

Out of the experience of an extraordinary human disaster that lasted too long, must be born a society of which all humanity will be proud. The time for the healing of the wounds has come. The moment to bridge the chasms that divide us has come. Never,

*asked on May 20, 2016* -
## Engish Check answers please

21. Which of the following sentences contains a misplaced modifier? (1 point) ⦁ I can’t believe I heard you complain about your surprise party! ⦁ Reading Paul’s essay, it was apparent his research skills were poor. ⦁ Alexis painted the murals

*asked on October 26, 2015* -
## physics

A 950-kg race car can drive around an unbanked turn at a maximum speed of 46 m/s without slipping. The turn has a radius of 120 m. Air flowing over the car's wing exerts a downward-pointing force (called the downforce) of 12000 N on the car. (a) What is

*asked on July 1, 2013* -
## Chemeistry

when 4.50 g of fe2o3 is reduced with excess h2 in a furnace, 2.6 g of iron metal is recovered. What is the percent yield when molar mass of Fe2O3 is 159.7

*asked on March 25, 2013* -
## English Check please

The High School Step Team Karla’s cousin Jade urged her to join the step team. “This afternoon you should definitely try out!” Jade suggested after the final bell rang. “I know she wants the best for me,” Karla thought to herself, “but I’m

*asked on October 26, 2015* -
## Geomety check

Complete the two-column proof. Given:

*asked on October 5, 2015* -
## algebra

Kevin invested his savings in two investment funds. The amount he invested in Fund A was $3000 less than the amount he invested in Fund B. Fund A returned a 8% profit and Fund B returned a 5% profit. How much did he invest in Fund A, if the total profit

*asked on June 1, 2015* -
## Physics

The maximum force a grocery sack can withstand and not rip is 250 N. Calculate the greatest acceleration 20 kg of groceries can be lifted from the floor to the table such that the sack does not break.

*asked on October 24, 2012* -
## 5 grade math

$3,000,000,000,000,000 how much is this in words?

*asked on May 2, 2011* -
## Physics

Water (density = 1.0 × 103 kg/m3) flows through a horizontal tapered pipe. At the wide end its speed is 4.0m/s and at the narrow end it is 5.0 m/s. The difference is pressure between the two ends is:

*asked on December 16, 2010* -
## Economics Please Help!!!

Why is there a difference between interest charged and interest earned? A) Banks are non-profit institutions B) Banks are profit-making institutions C) Banks must pay more than they receive D) There is no difference between interest charged and interest

*asked on December 21, 2015* -
## Math- Probability Please Help!

1) You and 3 friends go to a concert. In how many different ways can you sit in the assigned seats? A) 6 B) 12 C) 24 D) 10 2) You own 7 pairs of jeans and want to take 2 of them with you on vacation. In how many ways can you choose 2 pairs of jeans? A) 60

*asked on April 23, 2015* -
## PreCal

Angel of Elevation: You are skiing down a mountain with a vertical height of 1500 feet. The distance from the top of the mountain to the base is 3000 feet. What is the angle of elevation from the base to the top of the mountain? Traveling at 25 miles per

*asked on January 18, 2012* -
## Calculus

Find the Rates of convergence of the following functions as h->0 lim h->0 sin h - hcosh ------------- = 0 h Find the Rates of convergence of the following functions as n->inf lim (Sin (1/n))^2=0 n-> inf

*asked on December 11, 2009* -
## math ( Discrete Functions)

lottery offers two options for the prize. (7) Option A: $1000 a week for life. Option B: $600 000 in one lump sum. If you choose Option B, you have the opportunity to place the winnings into an investment that also makes regular payments, at a rate of

*asked on August 25, 2017* -
## Us history

Examine the unalienable rights of individuals as started in the declaration. Do you think these rights are upheld today? Gives examples and support your answer.

*asked on January 30, 2017* -
## History

1.)which describes a belief of the progressive movement ? A.) the belief that government could correct ills of society B.) the belief that individual citizens could work to improve social problems C.) the belief that business and the free enterprise system

*asked on March 7, 2016* -
## Algebra

What are the zeroes of y = x2 – 2x – 15? –3, –5 3, 5 –3, 5 3, –5

*asked on December 5, 2013* -
## statistics

a recent poll of 700 peole who work indoors found that 278 of the smoke. If the researchers want to be 98% confident of thier results to within 3.5% how large a sample is necessary? how do i work this problem?

*asked on June 21, 2008* -
## Economics

Among monopoly, oligopoly, Monopolistic competition, and perfect competition, how would you classify the markets for each of the following drinks? a. tap water b. bottled water c. cola d. beer I think it would be... a. Monopoly b. Oliopoly c. monopolistic

*asked on December 5, 2006* -
## english

What is the main effect of the scene with the lightning strike on the reader? 1. It suggests the narrator has little understanding of the world. 2. It suggests the power of nature is beyond the control of the narrator 3. It suggests the shifting nature of

*asked on August 29, 2015* -
## Physics

A 35 kg box rest in the bed of a truck. The coefficient of static friction between the box and the truck bed is 0.30 and the coefficient of friction of kinetic friction is 0.10. A) Calculate the maximum acceleration the truck can have before the box slides

*asked on October 27, 2012* -
## Physics

There is a proton that is at the origin and an ion at x1=6 nm. If the electric field is zero at x2= -3 , what is the charge on the ion? All I ahve for this is 2q/d^3=-e/x1^3 q=9*10^9 d=9 e=1.602*10^-19 x1=6 I get -2.7. They want an integer so i put up -3.

*asked on August 17, 2009* -
## cal

Water, at the rate 10 ft^3/min, is pouring into a leaky cistern whose shape is a cone 16' deep and 8' in diameter at the top. At the time the water is 12' deep, the water level is observed to be rising 4''/min. How fast is the water leaking away? Can

*asked on November 19, 2008* -
## Economics

50. In both monopolistic competition and non-price-discriminating monopoly, isn't the marginal revenue curve lies below the demand curve? 51. A monopolistically competitive firm is producing an output level where marginal revenue is greater than marginal

*asked on December 5, 2006* -
## American History

Which answer correctly analyzes the political developments that led to desegregation in the United States?

*asked on May 28, 2020* -
## Geometry Check please

Is the following definition of complementary angles reversible? If yes, write it as a true biconditional Complementary angles are two angles whose sum measures to 90 degrees - The statement is not reversible - Yes, if angles are complementary, then their

*asked on October 5, 2015* -
## Please check my answers English

Read the following sentences from "When Greek Meets Greek." Fraser scratch his head. "I know of a landlord up the road who vow that ain't ever taking anybody who come from the West Indies. But he don't mind taking Indians. He wouldn't know the difference

*asked on October 2, 2015* -
## Geometry check

how is constructing an angle bisector similar to constructing a perpindicular bisector? Both constructions begin with a given angle Both constructions allow you to find the midpoint of a segment Both constructions require that you draw a ray Both

*asked on August 27, 2015* -
## science

which of the following would be most likely to lead to increase biodiversity? A.clear-cutting B.oil drilling C.national park planning D.farming

*asked on December 11, 2013* -
## Early Childhood Education

A disadvantage of large group times is: A. language is enjoyed as a group. B. children develop an understanding of being a group member. C. the difficulty of having intimate conversations. D. they are often seen as sharing times. In a study about

*asked on December 11, 2013* -
## College Physics

7 Moles of a gas initially at temperature 300 K is compressed adiabatically from a volume of 1000 cm3 to a volume of 316 cm3. To the nearest tenth of a kJ what is the work done by the piston? (It is a monatomic ideal gas.) I have W = (3/2)nRT1(V1^(gamma-1)

*asked on July 13, 2013* -
## Trigonometric Functions! (Ferris Wheel)

The Ferris wheel at a carnival has a diameter of 18m and descends to 2m above the ground at its lowest point. Assume that a rider enters a car at this point and rides the wheel for two revolutions My main problem is how to get the phase shift. (The answer

*asked on May 21, 2013* -
## Math help

You buy clothing at a sale. You buy sneakers at 2/3 of their original price of $60, a sweater at 7/10 of its original price of $35, and a jacket at 5/6 of its original price of $45. Answer each question and show all your work. a. How much money did you

*asked on January 27, 2013* -
## Math (trigonometry)

A baseball diamond is actually a square with each side approximately 27.4 m. The pitcher's mound is 18.4 m from home plate on the diagonal of the square - note that the pitcher's mound is NOT located at the centre of the diamond! a) How far (to 3 decimal

*asked on December 2, 2012* -
## Science

Why are aboriginal clan systems considered a human social system?

*asked on October 10, 2012* -
## Math

If the length of the hour and the minute hands of a clock are 4 cm and 6 cm, respectively, what is the distance in cm between the tips of the hands at two o'clock?

*asked on October 2, 2012* -
## physics

two parallel conductors are located one above the other, with both carrying currents in opposite directions. As a result they repel each other. is the upper conductor in a stable state of levitation? b) Now we reverse one current so that the two conductors

*asked on April 18, 2010* -
## Analogy

Analogy: broom is to sweep AS brush is to _____________ 5 letter word that starts with either scr, spr, str, or thr. I've been trying to figure this out but I can't. I need help.

*asked on April 14, 2010* -
## math

A lottery offers two options for the prize. (7) Option A: $1000 a week for life. Option B: $600 000 in one lump sum. If you choose Option B, you have the opportunity to place the winnings into an investment that also makes regular payments, at a rate of

*asked on August 25, 2017* -
## History

1.) which was a part of the populist party's platform? A.) tax breaks for farmers B.) civil rights for all Americans C.) higher tariffs on foreign goods** D.) increased industrial development 2.) Whom did Rebecca Latimer Felton replace when she was

*asked on March 7, 2016* -
## Geometry help

The true conditional statement "If 1/2 (m

*asked on October 5, 2015* -
## english

I feel exquisite pleasure in dwelling on the recollections of childhood, before misfortune had tainted my mind and changed its bright visions of extensive usefulness into gloomy and narrow reflections upon self. 1. Which words from this text help develop

*asked on August 29, 2015* -
## Math

1. Explain the difference between (-3)^2 and -3^2. 2. Explain the difference between -23 subtracted from 17, and -23-17. I have no idea what to do I am so lost :(

*asked on March 16, 2015* -
## physics

A spring lies on a horizontal table, and the left end of the spring is attached to a wall. The other end is connected to a box. The box is pulled to the right, stretching the spring. Static friction exists between the box and the table, so when the spring

*asked on July 16, 2013* -
## Periodic Function (Trigonometric Fuctions)

A lighthouse beacon rotates through 360 degrees every 12 seconds, it is located 100 m off the shore of an island with a coastline of steep cliffs running north and south. As the light beam sweeps clockwise, starting from the north (direction of 0 degrees),

*asked on May 20, 2013* -
## Math

Which of the following rectangles is similar to a rectangle that measures 12 units by 16 units? A/18x24 B/9x14 C/6x10 D/16x20

*asked on January 9, 2013* -
## Precalculus

If Sin A=3/5 and cos B= -12/13, find the value of sin(A-B) if Angle A is in Quadrant I and angle B is in Quadrant III.

*asked on June 25, 2012* -
## chem

How much heat is required to heat 0.1 g of ice at −30 degrees C to steam at 100 degrees C

*asked on March 1, 2012* -
## chem101

which of the following compounds have polar bonds and a net dipole moment? a) H3COH b) H3CCOCH3 ALSO PLEASE CHECK THIS, RANK THE FOLLOWING FROM MOST TO LEAST ACIDIC COMPOUND: A)H2SO4>H3CCO2H>H20 B)H3CCH2NH2>H3CCH2OH>H3CCO2H

*asked on September 11, 2011* -
## Algebra II

What is the equation of g(x) if the parent function is f(x) = x^2 and a = 2, h = -5 and k = 7 f(x) = 2(x-5)^2 + 7 F(x) = -3(x+5)^2 + 7 f(x) = 2(x+5)^2 + 7 f(x) = 2(x-5)^2 -7 I think it is 2(x+5)^2 + 7, is that right

*asked on January 7, 2011* -
## Math

Increasing $100 by a certain percent produces the same result as decreasing $300 by the same percent. What is this percent?

*asked on May 14, 2010* -
## calc

a circle is tangent to the y-axis at y=3 and has one x-intercept at x=1 1. determine the other x-intercept 2. find an equation for the circle so i know two points on the circle are (0,3) and (1,0) and the equation for a circle is (x-a)^2 + (y-b)^2 = r^2

*asked on September 1, 2007* -
## physics

A uniform electric field of magnitude 250 V/m is directed in the positive x direction. A +12.0-ìC charge moves from the origin to the point (x, y) = (20.0 cm, 50.0 cm). (a) What is the change in the potential energy of the charge–field system? (b)

*asked on April 30, 2007* -
## math

Elizabeth and Lauren sold cookies for a school fundraiser and made $1,316.70. Together the girls sold a total of 831 cookies. Elizabeth sold chocolate chip cookies for $1.50 each, and Lauren sold peanut butter cookies for $1.65 each. How many cookies did

*asked on December 9, 2019* -
## History

which statement describes expansion of Islam under the Umayyads? Did they expand south through Egypt into sub Saharan Africa or west through North Africa as far as Spain? I’m confused, can someone please help me?

*asked on September 27, 2018* -
## Language Arts

Write an essay in which you analyze the importance of plot events and characters' actions to the development of a story's theme. You might choose "Raymond's Run" by Toni Cade Bambara, "The Story-Teller" by Saki, "The Finish of Patsy Barnes" by Paul

*asked on October 25, 2017* -
## Maths

A.Find the area of the region bounded above by y=2cosx and above by y=secx,-π/4≤x≤π/4. B.Find the volume of the sold generated by revolving the region in (A) above about the x-axis

*asked on April 22, 2017* -
## Maths

Find the area of the region bounded above by y=2cosx and above by y=secx,-π/4≤x≤π/4

*asked on April 22, 2017* -
## chemistry help, urgent!

Which of the following should you add to stabilize the pH of a solution? solute acid

*asked on February 23, 2017* -
## SCIENCE-BONES-NEED HELP

Do all bones contain bone marrow? (Im specifically talking about the hand bone) Please give me any information on bones, joints, muscles, ligaments, tendons, cartilage, and changes of the hand. I have some, but I want more info. Please help me! Thanks!

*asked on October 6, 2016* -
## maths

If [.] means greatest integer function then ([-4.00000001 + 1])^5 = ??? Thanks help

*asked on September 25, 2016* -
## Calculus

Optimization: A man on an island 16 miles north of a straight shoreline must reach a point 30 miles east of the closet point on the shore to the island. If he can row at a speed of 3 mph and jog at a speed of 5 mph, where should he land on the shore in

*asked on April 30, 2016* -
## History

1.)which describes a belief of the progressive movement ? A.) the belief that government could correct ills of society B.) the belief that idividual citizens could work to improve social problems C.) the belief that business and the free enterprise system

*asked on March 8, 2016* -
## MATH HELP

The Francesco Company produces spaghetti sauce that is used in restaurants. The fixed costs total $1,329,050. The selling price per 64 oz. can of sauce is $12.40. The variable cost per can is $4.80. What is the break-even point in number of cans?

*asked on March 2, 2016* -
## Language Arts

What is the pattern of stressed and unstressed syllables and how many metric feet are their in the following line? "Under a spreading chestnut tree" My answer is that the pattern of stressed and unstressed syllables is unstressed, stressed and there are 4

*asked on February 25, 2016* -
## Language Arts-Poetry

The Tide Rises, the Tide Falls by Henry Wadsworth Longfellow The tide rises, the tide falls, The twilight darkens, the curlew calls; Along the sea-sands damp and brown The traveller hastens toward the town, And the tide rises, the tide falls. Darkness

*asked on February 25, 2016* -
## Science Please Help!!!

A woman with a genetic disease marries a man who does not carry the disease. It is not possible for their children to carry the disease. The disease must be a) sex - linked b) recessive c) dominant d) cause by an extra chromosome I think the answer is

*asked on February 13, 2016* -
## SS-Please Help!!!

What are some of the benefits and pitfalls of the ethnic, language, and religious diversity in Africa? ***(It's an essay question)*** Thank you! (=

*asked on November 11, 2015* -
## Science-Please Help!!!

Which of the following systems is not directly involved in the body's regulation of water. a. digestive b. muscular c. urinary d. integumentary

*asked on November 5, 2015* -
## 1 More English check please!!

Read the following sentences from "The Destructors." The new recruit had been with the gang since the beginning of the summer holidays, and there were possibilities about his brooding silence that all recognized. He never wasted a word even to tell his

*asked on October 26, 2015* -
## Check please

Which of these is a feature of early American and colonial literature? a. the literature primarily focuses on religious themes b. the voices of women and minorities are absent (my answer) c. the literature was nonexistent before the printing press d. the

*asked on October 2, 2015* -
## english

Read Article IX of the United States Bill of Rights: The enumeration in the Constitution, of certain rights, shall not be construed to deny or disparage others retained by the people. What is the main effect of setting the phrase of certain rights off with

*asked on August 29, 2015* -
## english

And thus for a time I was occupied by exploded systems, mingling, like an unadept, a thousand contradictory theories and floundering desperately in a very slough of multifarious knowledge, guided by an ardent imagination and childish reasoning, till an

*asked on August 29, 2015* -
## english

What is the main effect of describing key events in the narrative as "accidents" or as happening by chance? They suggest the events are not entirely negative in their effects on the narrator. They suggest the events cannot be retold objectively by the

*asked on August 29, 2015* -
## English 10

1. All of the following define the theme of a story EXCEPT (1 point) a.the central idea of a work b.the underlying message in literature c.the methods of characterization employed by the writer ****** d.the lesson, or moral, of the story which can be

*asked on August 24, 2015* -
## Math Please help!!!

A 154-lb person burns 420 calories per hour riding an exercise bicycle at a rate of 15 mi/h. Write a function rule to represent the total calories burned over time by that person. Can someone please help me???

*asked on May 19, 2015* -
## Science

Chargers extend the life of the rechargeable batteries by: A) adding protons to the positive electrode B) adding electrons to the positive electrode C) moving electrons back to the positive electrode D) Moving electrons back to the negative electrode

*asked on February 25, 2015* -
## science

is this an open or closed system? baking soda reacting with vinegar

*asked on February 9, 2015* -
## Math

A room contains 8 crates. Each crate contains 8 boxes. Each box contains 8 bags. Each bag contains 8 balloons. a) How many balloons are in the room? b) Express the numbers of balloons as a power. Identify the base and the exponent. please help i understand

*asked on September 9, 2013* -
## English

I need help with these questions. Which of the following options best demonstrates sentence fluency? A. The city looked beautiful in that it was lit by the sun while I was walking down the street. B. Walking down the street in the sunshine, the city looked

*asked on April 16, 2013* -
## Math

Find the area for a triangle: base 14 cm, height 5.5 cm. 19.5 cm² 77 cm² 38.5 cm² 770 cm²

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

q = 350 − 5p (a) Enter the equation for revenue R as a function of price p. R = (b) What is the (instantaneous) rate of change of revenue with respect to price when the price is $6? (c) At what price is the derivative of revenue with respect to price

*asked on February 18, 2013* -
## math

7 3/5 ft = how many yards?? How do I do this??

*asked on January 27, 2013* -
## Math PLEASE HELP!!!

Part 1: A rectangular box is 2 inches high, 3.5 inches wide amd 4 inches long. A cyliner box is 3.5 inches high and has a diameter of 3.2 inches. Use 3.14 for pi. Round to the nearest tenth. Part 2: whWhich box has a larger volume. How much bigger is the

*asked on January 10, 2013* -
## Math PLEASE HELP!!!

A figure is dilated by a scale factor of 4. If the origin is the center of dilation, what are the coordinated in the original figure of a vertex located at (8,8) in the enlarged figure? A/(2,2) B/(4,4) No one has answered

*asked on January 9, 2013* -
## Math (trigonometry)

How do you get the second triangle when you have an ambiguous case of sine law? For example, if you are given the following information for a triangle: a = 7.2 mm, b = 9.3 mm,

*asked on December 2, 2012* -
## physics

A 59.0-kg skater is traveling due east at a speed of 1.80 m/s. A 61.0-kg skater is moving due south at a speed of 6.20 m/s. They collide and hold on to each other after the collision, managing to move off at an angle south of east, with a speed of vf. Find

*asked on October 22, 2012* -
## physics

A boy throws a stone straight upward with an initial speed of 12.0 Part A What maximum height will the stone reach before falling back down?

*asked on September 29, 2012* -
## ENGLISH

PLEASE HELP !! Identify the pronoun in the sentence below. Also identify the class and noun function of the pronoun using the abbreviations from the chart. For intensive pronouns, put NONE for noun function. 1.Robert was successful because his planning

*asked on November 3, 2011* -
## Physics

A pure copper penny is slid along a steel counter top. If the coefficient of kinetic friction between the copper and the steel is 0.36, what is the magnitude of the penny's acceleration?

*asked on October 19, 2011* -
## chemistry

The legal limit for drunkenness is 0.08 ( 0.08 grams of alcohol per 100ml of blood). expired air contains the following main gaseous components by volume: 74.1% N2; 15.0% O2; 6.0% H2O; 0.9% Ar; and 4.0% CO2 at 37 degrees Celcius and 1 atm. Determine the

*asked on April 19, 2011* -
## Math

The chart shows the number of cars sold per week at a car dealership during the month of June. Salesperson Week 1 Week 2 Week 3 Week 4 Tim 4 8 2 1 Geena 1 2 7 1 Rafael 2 1 5 4 Sonny 4 1 1 10 How should the data be displayed to make the most convincing

*asked on April 18, 2011* -
## Math

What is the probability of rolling a number cube and getting an even number or a multiple of 3? I got 4/6 as the probability, but that isn't a choice. 6 is a multiple of 3 and an even number, so if I count 6 once, then I get 4/6 as the probability. But if

*asked on March 30, 2011* -
## Math

The gas tank of a car holds 20 gallons of gas. A gallon of gas costs $1.22. When the tank was filled it cost $20. About what percent of the tank was filled?

*asked on March 21, 2011* -
## Math

A molecule of water is made up of 2 atoms of hydrogen and 1 atom of oxygen. What percent of the atoms of a water molecule is oxygen?

*asked on March 14, 2011* -
## chemistry help

a kilogram of aluminum metal and a kilogram of water are each warmed to 75 degree celisus and placed in two identical insulated containers. one hour later, the two containers are opened and the temperture of each substance is measured. the aluminum has

*asked on January 17, 2011*