# angie

Popular questions and responses by angie-
## Statustics

A survey found that women’s heights are normally distributed with mean 63.4 in and standard deviation 2.5 in. A branch of the military requires women’s heights to be between 58 in and 80 in. a. Find the percentage of women meeting the height

*asked on August 4, 2014* -
## Math

Consider the set of integers greater than -2 and less than 6. A subset of this set is the positive factors of 5. What is the complement of this subset? a. {0,2,3,4} b. {-1,0,2,3,4} c. {-2,-1,0,2,3,4,6} d. {-2,-1,0,1,2,3,4,5,6} I think it's d, even though

*asked on May 25, 2009* -
## Chemistry

The chemical equation for ionic reaction between Na2S and AgNO3??

*asked on April 1, 2015* -
## calculus

Find two numbers whose product is 16 and whose sum of squares is minimum

*asked on December 21, 2016* -
## science

An astronaut of mass 120 kg recedes from her spacecraft by activating a small propulsion unit attached to her back. The force generated by a spurt is 30 N. Show that her acceleration is 0.25 m/s2.

*asked on September 15, 2013* -
## Math Problem (please help)

On the day of a child's birth, a deposit of $30,000 is made in a trust fund that pays 3% interest, compounded continuously. Determine the balance in this account on the child's 30th birthday. (Round your answer to two decimal places.)

*asked on September 9, 2014* -
## AP Chemistry

Write the expression of for the base dissociation constant for hydrazine, N2H4, a weak base. Hydrazine reacts with water to form the N2H5+ ion.

*asked on January 11, 2010* -
## Chemistry

Write a balanced overall reaction from these unbalanced half-reactions. Sn->Sn2+ Ag+->Ag Balanced overall equation I got Sn+2Ag+->Sn+2Ag, but its wrong.

*asked on November 20, 2016* -
## Chemistry - Help

Please help..Write the equation for the equilibrium constant (K) of the reaction. 2K2CrO4 + 2HCl -->

*asked on April 12, 2015* -
## Chemistry

How do you do the inverse of absolute temperature? My kelvin temperatures are: 298 308 318 328 338 348 358 368 378 Taking the natural log of both sides of both sides of the equation gives ln(k) = ln(A) – E/RT. Thus, a graph of the natural log of the

*asked on September 25, 2012* -
## Chemistry/Math

I'm not sure how to approach this problem. A manometer uses kerosene, specific gravity 0.82 as the fluid. A reading of 5 inches on the manometer is equivalent to how many millimeters of mercury?

*asked on September 17, 2012* -
## Chemistry

Consider the reaction between acetylene, C2H2, and oxygen in a welding torch: If 5.4 moles of acetylene react with sufficient oxygen, how many grams of CO2 will be formed?

*asked on April 6, 2015* -
## math

A basketball player is 6 ft. 4 in. tall and a volleyball player who is 1.75 m. 17. How tall is the basketball player in meters? How tall is the volleyball player in feet? (round to one decimal place)

*asked on September 30, 2015* -
## American History

Which statement below summarizes President Richard Nixon’s policy of Vietnamization. A. Train the South Vietnamese so America can slowly withdraw its troops B.Order an immediate removal of Americans from Vietnam. c. Meet with the North Vietnamese and

*asked on April 7, 2016* -
## Math

When Albert flips open his mathematics textbook, he notices that the product of the page numbers of the two facing pages is 156. Which equation could be used to find the page numbers that Albert is looking at? a. x+(x+1)=156 b.(x+1)+(x-2)=156

*asked on March 28, 2009* -
## Math

Megan answered 18 questions correctly on a test. That is 75 percent of the total number of questions. How many questions were on the test?

*asked on April 11, 2017* -
## AP Chemistry

You are given a small bar of an unknown metal X. You find the density of the metal to be 10.5g/cm3. An x-ray diffraction experiment measures the edge of the face-centered cubic unit cell as 4.09 A. (1A=10^-10m) Identify X.

*asked on November 14, 2009* -
## chemistry

what is the empirical formula for a compound whose molecular formula is C2Cl6

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

How do you find the answer for this: Pam is playing with red and black marbles. The number of red marbles she has is three more than twice the number of black marbles she has. She has 42 marbles in all. How many red marbles does Pam have? a. 13 b. 15 c. 29

*asked on May 25, 2009* -
## DESPERATE NEED OF HELP--Chemistry, almost done

Calculating Yield--need some help finishing problem. Almost done, just need help one ONE step, please help!!? Well we did a lab on limiting reagent/reactants. The balanced equation is Sr(NO3)2 + 2KIO3 --> Sr(IO3)2 + 2KNO3 Mols of Sr(NO3)2 used was .005023

*asked on February 28, 2007* -
## Math plz check if correct

In multiplication, if one term is negative and one term is positive, the result will always be ______. A. equal to zero B. negative C. inverted D. positive my answer is A

*asked on August 31, 2014* -
## Math

Toni rows a boat 4.5 km/h upstream and then turns around and rows 5.5 km/h back downstream to her starting point. If her total rowing time is 48 min, for how long does she row upstream? you can express your answer to the nearest minute. I don't understand

*asked on January 17, 2009* -
## chemistry

Suppose f′′(x)=−36sin(6x) and f′(0)=−5, and f(0)=−3 f(π/3)=?

*asked on November 18, 2016* -
## algebra

To find the amount A in an account after t years with principal P and an annual interest rate r compounded continuously, you can use the formula

*asked on December 13, 2014* -
## Algebra

Find a mathematical model representing the statement. (Determine the constant of proportionality.) v varies jointly as p and q and inversely as the square of s. (v = 2.1 when p = 4.2, q = 5.4 and s = 2.4.) v =

*asked on November 25, 2014* -
## Dine

Men spend an average of 29 minutes per day on weekends and holidays exercising and playing sports. They spend an average of 23 minutes per day reading. A random sample of 25 men resulted in a mean of 35 minutes exercising with a standard deviation of 6.9

*asked on November 10, 2014* -
## Advanced Accounting

Mr. Right and Mr. Wrong own an antique store in a partnership. They share profits and losses equally and receive an annual salary of $50,000, as per the partnership agreement. Mr. Right travels the country buying antiques. Mr. Wrong manages the store. From

*asked on December 3, 2012* -
## Accounting

Financial Accounting 1. The following information was made available from the income statement and balance sheet of Meranda Company: ITEM 12/31/2010 12/31/2009 Accounts Receivable $ 42,000 $ 45,100 Accounts Payable 27,900 24,500 Merchandise Inventory

*asked on October 19, 2012* -
## Math

Which interval notation represents the set of all numbers from 2 through 7, inclusive? a. (2,7} b. (2,7) c. {2,7) d. {2,7}

*asked on April 14, 2009* -
## French

How would you use the word "gros" in french for masculine, plural?

*asked on March 31, 2009* -
## ENGLISH

Which form best describes this poem? narrative poem haiku free verse lyric poem

*asked on March 2, 2017* -
## Science

Fill in the blank- The gravitational force between two objects is proportional to the ______ of the masses of the objects.

*asked on October 30, 2013* -
## Advanced Accounting

Mr. White (invested $20,000) and Mr. Black (invested $10,000) are in a partnership to run a marketing firm. They share profits and losses in the ratio of 2:1, which is also the ratio of their initial investment in the business. Mr. White manages the office

*asked on December 3, 2012* -
## chemistry

When 1.70 mol CO2 and 1.70 mol H2 are placed in a 0.850 L container at 395 C, the following equilibrium is achieved: CO2(g) + H2(g) = CO(g) + H2(g) If Kc = 0.802, what are the concentrations of each substance in the equilibrium mixture?

*asked on February 25, 2011* -
## physics

If a particle of mass 5.7 kg is moving east at 10 m/s and a particle of mass 19 kg is moving west at 10 m/s, what is the velocity of the center of mass of the pair? Give answer is m/s to the west. I tired to use: Vcm = mv/M. I plugged in (5.7)(10) +

*asked on February 28, 2010* -
## French

In chemise and chemisier, which one is masculine and which one is feminine?

*asked on May 27, 2009* -
## Math

Charles's Law states that at constant pressure, the volume of a fixed amount of gas varies directly with its temperature measured in degrees Kelvin. A gas has a volume of 250 mL at 300 K. what is an equation for the relationship between volume and

*asked on January 24, 2009* -
## literature

1. Hopkins's use of "seared," "bleared," and "smeared" is an example of A. metaphor. B. assonance. C. simile. D. alliteration. 2. A villanelle is A. a narrative poem written in blank verse. B. a formal poem using extensive repetition. C. a favorite

*asked on December 9, 2008* -
## Civics

Which are true statements about direct democracy? Select all that apply. (2 points) A. It can happen at the federal level. B. It can happen at the state level. ** C. It can remove an elected official from office. D. It can only happen through the

*asked on March 26, 2020* -
## Astronomy

The gravity lock of the Moon to Earth is silimar to the action of a A) giant pendulum B) spinning top C) master key D) tidal wave E) magnetic compass I'm torn between A and E.

*asked on March 14, 2017* -
## Chemistry

An unknown metal has a mass of 4.67g. It is heated to 95.1 C and then placed in a calorimeter that contains 24.3g of water at 21.7 C. The metal and water both reach a final temperature of 24.6 C. What is the specific heat of this metal? What is the unknown

*asked on November 16, 2016* -
## math

Webster Digital received a promissory note of $8,000 for 9 months at 7% simple interest from one of its customers. After 4 months, the note was discounted at Bank of Aventura at a discount rate of 10%. What are the proceeds Webster Digital will receive

*asked on May 6, 2016* -
## American History please Help

The influx of new immigrants in the 1980s and 1990s motivated many native-born Americans to A.campaign to make English their state’s official language. B.push for bilingual education programs in public schools C.boycott businesses that gave jobs to

*asked on April 22, 2016* -
## History

Opposition to strong environmental protection regulations was motivated by A, Concern that regulation would hurt the economy and kill jobs. B. conservative resistance to expanding federal authority. C.refusal to believe that pollution was a serious problem

*asked on April 7, 2016* -
## English

In "The Most Dangerous Game, " how does Rainsford's survival depend on his adventurous bold nature? A. He has no sympathy for the animals he hunts. B. He is resourceful and refuses to play by Zaroff;s rules ****** C. He considers Zaroffs "sport"

*asked on May 18, 2015* -
## algebra

Solve for x. (Round your answer to three decimal places.) log7 x = 1/2 x=

*asked on December 1, 2014* -
## Chemistry

Suppose 26.0g of sodium bromide is dissolved in 150mL of a 0.60M aqueous solution of silver nitrate. Calculate the final molarity of bromide anion in the solution. You can assume the volume of the solution doesn't change when the sodium bromide is

*asked on July 26, 2014* -
## psychology

To ensure that the memory of a child is accurate, it is important to: A. ask him to draw a picture of the event B. reward him for telling what happened C. reassure him that his friends have had the same experience D. avoid the use of leading questions or

*asked on January 2, 2013* -
## math

A superball is dropped from a height of 2 m and bounces 90% of its original height on each bounce. (a) When it hits the ground for the eighth time, how far has it traveled? (b) How high off the floor is the ball on the eighth bounce?

*asked on June 8, 2012* -
## Algebra

Find all of the zeros of the polynomial function and state the multiplicity of each. f (x) = (x^2 – 16)^2 – 4 with multiplicity 2 and 4 with multiplicity 2 I think this is the ans for this equation. Anyone care to chime in? Thanks!

*asked on July 24, 2009* -
## science

Scientists believe that Earth's early atmosphere changed in composition as a result of a. the appearance of oxygen-producing organisms b. the drifting of the continents c. the changes in Earth's magnetic field d. a transfer of gases from the Sun

*asked on April 6, 2009* -
## Conceptual Physics

If an airplane travels 250 km due north in 1/2 hour, what is its velocity? 500 km / hr 500 km / hr north 250 km / hr I think the answer is b?

*asked on September 18, 2018* -
## Algebra

Identify the property that justifies the statement (5+7)6=30+42 Would this be the distributive property or Inverse Prop of Multi? Kind of confused Thank you

*asked on February 13, 2017* -
## American History

The economy rebounded in 1897 due to the A. economic policies of President McKinley. B.withdrawal of the Populists from national politics C.discovery of gold in Alaska D. Decline of the general price index. My answer is A

*asked on April 16, 2016* -
## History

Which region of the country was a beneficiary of deindustrialization during the 1970s? A. Northeast B. Southwest . C. Midwest S,northwest My answer is Northeast

*asked on April 8, 2016* -
## us history

Which factor contributed to growing conflict over slavery from the 1820s through the 1850s

*asked on February 18, 2016* -
## math

Vesna Vulovic survived the longest fall on record without a parachute when her plane exploded and she fell 6 miles and 551 yards. What is this distance in yards? What is this distance in meters? (round yards to nearest whole number, round meters to one

*asked on September 30, 2015* -
## English

Which quote from "The Morning of June 28, 1948" bes supports the conclusion that the public strongly disliked "The Lottery?" A. "this, as any writer of stories can tell you, is not a usual thing." B. "your story has kicked up quite a fuss around the

*asked on May 18, 2015* -
## english

Identify the verbal in this sentence as infinitive, gerund or participle. Wearing protective clothing is a good precaution against infection.

*asked on July 27, 2014* -
## math

Sandra has a collection of beads. Of the beads, 45% are silver. She has 108 silver beads. How many beads are in her collection?

*asked on June 21, 2014* -
## Grammar

what prefix turns the word "town" into a word meaning "center of town"?

*asked on February 19, 2013* -
## Math

Dorian's score of 558 on the writing portion of the 2009 SAT exam placed him in the 72nd percentile. If the mean on this exam was 493, what was the standard deviation?

*asked on November 13, 2012* -
## Math

Study the number pattern in the table below and complete 2^3 (0x3^2)+(3x2)+2 8 3^3 (1x4^2)+(3x3)+2 27 4^3 (2x5^2)+ (3x4)+2 64 5^3(3x6^2)+(3x5)+2 125 6^3 ? ? ? ? ? ? ? ? ? 10^3 ? ? ? Is the pattern 6^3 (4x7^2)+(3x6)+2 216 7^3 (5x8^2)+ (3x7)+2 343 8^3

*asked on June 19, 2009* -
## Math

A movie theater recorded the number of tickets sold daily for a popular movie during the month of June. A box-and-whisker plot represents the number of tickets sold. minimum-100 maximum-8 1st quartile-300 median-400 3rd quartile-600 Which conclusion can be

*asked on June 10, 2009* -
## Math

Which ordered pair is a solution of the system of equations y=x^2-x-20 and y=3x-15? a. (-5,-30) b. (-1,-18) c. (0,5) d. (5,-1) When I solved the system of equations I got 5 and -1. What do I do next?

*asked on May 17, 2009* -
## Math

how do you find the constant of variation k for the direct variation? for example, 4x + -6y. how do you find k?

*asked on January 30, 2009* -
## 8th grade

Surface ocean currents located at 40 degrees south latitude and 90 degrees west latitude generally flow toward the (1) northeast (2) southeast (3) southwest (4) west

*asked on December 27, 2008* -
## Math

1. A very magical teacher had a student select a two-digit number between 50 and 100 and write it on the board out of view of the instructor. Next, the student was asked to add 76 to the number, producing a three-digit sum. If the digit in the hundred’s

*asked on September 22, 2008* -
## Physical Science

An elephant drags a tree trunk along a rough horizontal surface by means of an attached rope which makes an angle of 30° with the horizontal. The force in the rope is 4 000N. CALCULATE the horizontal component of the force exerted by the rope on the tree

*asked on February 14, 2017* -
## calculus

Water leaking onto a floor creates a circular pool with an area that increases at the rate of 3 square inches per minute. How fast is the radius of the pool increasing when the radius is 10 inches?

*asked on January 8, 2017* -
## calculus

Jen needs to make a flyer for her dog's birthday party. She wants the flyer to contain 40 square inches of printed portion and she wants to use 1 inch of each side as well as 2 inches of top and bottom of the paper for decoration. What size paper should

*asked on December 21, 2016* -
## English

Edgar Allan Poe uses foreshadowing in "The Cask of Amontillado" to create mystery in which of the following quotes? A. "he had on a tight-fitting parti-striped dress, and his head was surmounted by the conical cap and bells." ****** B. "and as for

*asked on May 18, 2015* -
## Math

A student scores 74 out of 100 on a test,If the maximum score is 100. What score does the student need at least an average of 80?

*asked on March 1, 2015* -
## Math Problem (please help)

The simple interest on an investment is directly proportional to the amount of the investment. By investing $4250 in a certain bond issue, you obtained an interest payment of $106.25 after 1 year. Find a mathematical model that gives the interest I for

*asked on September 9, 2014* -
## check and see if correct

Which organ is NOT a part of the digestive system? A. Esophagus B. Gallbladder C. Kidneys D. Mouth My answer would be mouth

*asked on September 7, 2014* -
## Math check see if i;m coorrect

In division, a problem includes a divisor, a dividend, and a(n) ______. A. product B. sum C. expression D. quotient My answer is b

*asked on August 31, 2014* -
## Finance

On August 1, 2005 you invested $3,000 into a mutual fund. You then invested $1,000 into that same mutual fund on the first day of August for each of the years 2006 through 2013. You averaged a 7.25% annual rate of return on your investment in this mutual

*asked on September 20, 2013* -
## psychology

At the age of four months, Zach was excitable and fearful. His dad taped a colorful picture beside the changing table to entertain Zach during diaper changes. Zach overreacted to the picture and became agitated and nervous. During his school years, Zach is

*asked on January 3, 2013* -
## Advanced Accounting

GAAP rules are clear about when a company needs to consolidate or not, but companies tend to find loopholes to circumvent this rule. GAAP clearly indicates that consolidated financial statements are “usually necessary for a fair presentation when one of

*asked on December 3, 2012* -
## physics

After 6.00 kg of water at 80.4 oC is mixed in a perfect thermos with 3.00 kg of ice at 0.0 oC, the mixture is allowed to reach equilibrium. When heat is added to or removed from a solid or liquid of mass m and specific heat capacity c, the change in

*asked on December 1, 2012* -
## Psychology

A psychologist is performing an experiment involving a controlled group and an experimental group. With the experimental group, the psychologist is giving a placebo and labeling it as caffeine pill. The control group receives a caffeine pill, which is

*asked on November 18, 2012* -
## Physics

Determine the stopping distance for a skier moving down a slope with friction with an initial speed of 20.6m/s. Assume μk=0.178 and θ=5.27.

*asked on October 28, 2012* -
## Calculus

find y' if sin^-1(xy)=cosy

*asked on February 16, 2012* -
## Physics

The drawing shows an ideal gas confined to a cylinder by a massless piston that is attached to an ideal spring. Outside the cylinder is a vacuum. The cross-sectional area of the piston is A = 2.50 10-3 m2. The initial pressure, volume, and temperature of

*asked on November 16, 2011* -
## psychology

As we age, our physical functioning deteriorates. This is most likely due to reduced efficiency in basic cellular processes. One cause of this is thought to be

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

Two dice are rolled. What is the probability that the sum of the dots on the upward faces is NOT 12

*asked on April 25, 2010* -
## Science

When 1 gram of liquid water at 0 degrees Celsius freezes to form ice, how many total calories of heat are lost by the water and how do you know? a. 1 b. 0.5 c. 80 d. 540

*asked on June 15, 2009* -
## Syllables

How many syllables are in chocolate? 2 or 3?

*asked on June 7, 2009* -
## Math

How do you find the percentile rank of 4.6?

*asked on May 30, 2009* -
## Math

How do you know if the relationship shown by the data in a table is linear?

*asked on April 13, 2009* -
## math

Suppose you need $2.40 in postage to mail a package to a friend. You have 9 stamps, some $0.20 and some $0.34. How many of each do you need to mail the package? So to solve this problem, I came up with two inequalities: 1. a + b is less than or equal to 9

*asked on April 10, 2009* -
## math

The length of a rectangle is 5 cm more than twice the width. The perimeter of the rectangle is 34 cm. Find the dimensions of the rectangle.

*asked on April 1, 2009* -
## Math

Define variable and write a system of equations for this situation. Solve using substitution. A farmer grows only sunflowers and flax on his 240-acre farm. This year he wants to plant 80 more acres of sunflowers than that of flax. How many acres of each

*asked on March 31, 2009* -
## Science

The separation of P-waves and S-waves on a seismogram recorded 4500 km from the epicenter of an earthquake is six minutes. On another seismogram that separation is seven minutes. Is the second station closer to or more distant from the epicenter? Explain.

*asked on March 16, 2009* -
## binomial random variables

compute the probability of x successes in the n independent trials of the expirement. n=10 p=0.4 x=3

*asked on March 1, 2009* -
## Science/Math

West Point lies on the west bank of the Hudson River in New York state, about 80 km from where the river enters the Atlantic Ocean. The elevation of West Point is 3 m. If sea level rises at a rate of 4 mm per year, how long will West Point remain above sea

*asked on February 5, 2009* -
## Science

Waste produced by people in New York State has been dumped into the Atlantic Ocean, where it is distributed by surface ocean currents. Which coastal area is most likely to become polluted by this waste? A west coast of Mexico B south coast of South America

*asked on February 5, 2009* -
## Science

What is the source of most of the sodium, magnesium, and calcium ions in seawater? A weathering of seafloor rocks B weathering and erosion of continental rocks C deep-ocean organic-matter sediments D gases from underwater volcanic eruptions

*asked on February 5, 2009* -
## literature

One difference between tragedy and comedy is that tragedy?

*asked on December 10, 2008* -
## Chem Question

What is the molarity of a NCL solution if 37.50 mL of the acid is needed to neutralize 25.00 mL of 0.0725 M NaOH? I'm not quite sure how to go about doing this one. And also this one thing. The following technical errors were committed in standardizing the

*asked on March 8, 2007*