# vanessa

Popular questions and responses by vanessa-
## English

Write a debate on the topic;Boys should not help in the kitchen.Speak for or against the motion.

*asked on August 14, 2012* -
## Physics

A box rests on a rough board 10.0meters long. When one end of the board is slowly raised to a height of 6.0meters above the other end, the box begins to slide. 1. What is the coeﬃcient of static friction? 2. Once you have claculated the coeﬃcient of

*asked on February 28, 2018* -
## history

which describes the most accurate reason why oil wealth affects the stability of the middle east? a. wealthier middle eastern countries are able to use their oil profits to fund armies for self-defense. b. middle eastern nations with unlimited oil/fuel

*asked on July 11, 2019* -
## CHEM 2

A 23.0% by mass LiCl solution is prepared in water. What is the mole fraction of the water?

*asked on May 10, 2016* -
## Calculus

A population of 500 E. coli bacteria doubles every 15 minutes. Use this information to find an expression for this population growth. Using this expression, find what the population would be in 87 minutes. Use an exponential model. so we're supposed to use

*asked on July 14, 2008* -
## statistics (10)

Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $30,000 and $45,000. Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. What

*asked on April 23, 2014* -
## statistics

Suppose a random sample of size 50 is selected from a population with σ = 10. Find the value of the standard error of the mean in each of the following cases (use the finite population correction factor if appropriate). a. The population size is infinite

*asked on April 15, 2014* -
## Math

The College Board reported the following mean scores for the three parts of the Scholastic Aptitude Test (SAT) (The World Almanac, 2009): Assume that the population standard deviation on each part of the test is = 100. a. What is the probability a sample

*asked on April 16, 2014* -
## Math

A radioactive substance decays according to the formula Q(t) = Q0e−kt where Q(t) denotes the amount of the substance present at time t (measured in years), Q0 denotes the amount of the substance present initially, and k (a positive constant) is the decay

*asked on April 6, 2014* -
## Calculus

For the function ƒ(x) = x2 find the slope of secants from the point (2, 4) to each of the following points. (3, __ ) (2.5 , __ ) (2.1 , __ ) (2.01, __ ) (2.001, __ ) Using the pattern from question 1, what do you think the slope of a tangent at the point

*asked on July 10, 2008* -
## Science

1. Calculate the temperature of the parcel at the following elevations as it rises up the windward side of the mountain: (a) 1000 __*F (b) 3000 °C (c) 6000 °C

*asked on November 25, 2011* -
## Math

The growth rate of Escherichia coli, a common bacterium found in the human intestine, is proportional to its size. Under ideal laboratory conditions, when this bacterium is grown in a nutrient broth medium, the number of cells in a culture doubles

*asked on April 6, 2014* -
## stats

Scores on a test are approximately normally distributed with a mean of 70 and a standard deviation of 9. The teacher wants to give A’s to the top 10% of students, B’s to the next 25%, and C’s to the next 42%. a.) what is the bottom cutoff for a C

*asked on April 25, 2016* -
## Language

What is the rhyme scheme of the above lines? A. abab B. aabb C. aabc•• D. abaa Correct me if I'm wrong!! The Assyr come down like a wolf on the fold, And his cohorts were gleaming in purple and gold. And the sheen of their spears was like stars on the

*asked on February 1, 2016* -
## financ

All techniques with NPV profile- mutually exclusive projects. Projects A and B, of equal risk. Are alternatives for expanding Rosa Company’s capacity. The firm’s cost of capital is 13%. The cash flows for each project are shown in the following table.

*asked on January 4, 2012* -
## statistics

A simple random sample of 40 items resulted in a sample mean of 25. The population standard deviation is 5. a. What is the standard error of the mean (to 2 decimals)? b. At 95% confidence, what is the margin of error (to 2 decimals)?

*asked on April 21, 2014* -
## Statistics 2

In Hamilton County, Ohio the mean number of days needed to sell a home is 86 days (Cincinnati Multiple Listing Service, April, 2012). Data for the sale of 40 homes in a nearby county showed a sample mean of 80 days with a sample standard deviation of 20

*asked on September 24, 2014* -
## Math

Phosphorus-32 (P-32) has a half-life of 14.2 days. If 200 g of this substance are present initially, find the amount Q(t) present after t days. (Round your growth constant to four decimal places.) How fast is the P-32 decaying when t = 21.5? (Round your

*asked on April 6, 2014* -
## Math

Which statements are always true about regular polygons? Select all that apply. All sides are congruent •• Pairs of sides are parallel All angles are congruent •• All angles measure 90 degree Correct me if I'm wrong!!

*asked on February 5, 2016* -
## Math

Carlota Music Company estimates that the marginal cost of manufacturing its Professional Services guitars in dollars/month by the following. This model assumes that the level of production is x guitars/month. C '(x) = 0.007x + 130 The fixed costs incurred

*asked on April 9, 2014* -
## Statistics Emergency please

People end up tossing 12% of what they buy at the grocery store (Reader's Digest, March 2009). Assume this is the true population proportion and that you plan to take a sample survey of 540 grocery shoppers to further investigate their behavior. a)What is

*asked on April 17, 2014* -
## Physics

What acceleration would a 35 KG box have if we pushed it with a force of 275 N across a surface that has a coefficient of friction of .7?

*asked on December 14, 2017* -
## probability

In a shipment of 11 CD players, two are defective. Find the probability that a sample of 3 CD players will contain no more than one defective one.

*asked on June 18, 2011* -
## Geometry

Which statement is true? A. All squares are rectangles. B. All quadrilaterals are rectangles. C. All parallelograms are rectangles. D. All rectangles are squares. I thought it was B.

*asked on August 11, 2014* -
## statistics

The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random sample of 50 business travelers is selected and each traveler

*asked on April 21, 2014* -
## Math

Based on a preliminary report by a geological survey team, it is estimated that a newly discovered oil field can be expected to produce oil at the rate of R(t) = 300t^2/(t^3 + 32)+5 (0 ≤ t ≤ 20) thousand barrels/year, t years after production begins.

*asked on April 14, 2014* -
## Math

Skeletal remains had lost 84% of the C-14 they originally contained. Determine the approximate age of the bones. (Assume the half life of carbon-14 is 5730 years. Round your answer to the nearest whole number.)

*asked on April 5, 2014* -
## multiplied

when 2.49 is multiplied by 0.17, the result rounded to 2 decimal places is? a 0.04 b 0.42 c 4.23 d .423 e .40

*asked on April 10, 2013* -
## Chemistry

If 75 g of ice at 0.0 C were added to 1.5 L of water at 75 C, what would be the final temperature of the mixture?

*asked on November 22, 2010* -
## Statistics PLEASE HELP ME!

The Wall Street Journal reported that automobile crashes cost the United States $162 billion annually (The Wall Street Journal, March 5, 2008). The average cost per person for crashes in the Tampa, Florida, area was reported to be $1599. Suppose this

*asked on April 22, 2014* -
## Spanish

CHECK? ANswers on bottom: A. Choose the correct preterite tense conjugation. t� (dar) das dabas diste B. Choose the correct imperfect tense conjugation. las gatas (ir) iban van fueron C. Choose the correct preterite tense conjugation. Juan (dormir)

*asked on December 17, 2012* -
## Accounting 7

Job 31 has a direct materials cost of $300 and a total manufacturing cost of $900. Overhead is applied to jobs at a rate of 200 percent of direct labor cost. Use the relationships among total manufacturing costs, conversion cost, and prime cost to

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

Naturally occurring cobalt consists of only one isotope, 59Co, whose relative atomic mass is 58.9332. A synthetic radioactive isotope of cobalt, 60Co, relative atomic mass 59.9338, is used in radiation therapy for cancer. A 1.8276g sample of cobalt has an

*asked on September 3, 2014* -
## phys science

1. speed is the ratio of the distance an object moves to a. the amount of time needed to travel the distance** b. the direction the object moves c. the displacement of an object d. the motion of the object 2. a car traveled 60 km in 2 hours, 84 km in the

*asked on January 9, 2018* -
## Algebra

A total of 556 tickets were sold for the school play. They were either adult tickets or student tickets. There were 56 more student tickets sold than adult tickets. How many adult tickets were sold?

*asked on September 4, 2017* -
## Chemistry

mass of empty flask with stopper = 32.634 g mass of flask with water and stopper = 59.479 g density of the water = 0.9973 g/cm^3 mass of water = 26.845 g volume of water = 26.918 cm^3 the flask is then emptied and an unknown substance is added mass of

*asked on October 16, 2007* -
## Technology

In Which of the following ways can you use test taking tips help you ? You can focus on the information that you need to study •• You will see the answers to the test You will study more You will be less organized Correct me if I'm wrong

*asked on February 2, 2016* -
## Math

The average student enrolled in the 20-wk Court Reporting I course at the American Institute of Court Reporting progresses according to the rule below where 0 t 20, and N'(t) measures the rate of change in the number of words/minute dictation the student

*asked on April 9, 2014* -
## statistics

For a t distribution with 16 degrees of freedom, find the area, or probability, in each region. a. To the right of 2.120. (Use 3 decimals.) b. To the left of 1.337. (Use 2 decimals.) c. To the left of -1.746. (Use 2 decimals.) d. To the right of 2.583.

*asked on April 21, 2014* -
## tempertaure question

the temperature at 8:00am was -6*C. By noon, the temperature had risen by 13*C. what was the temperature at noon? a.-20* b.-6* c.7* d.13* e.other

*asked on April 10, 2013* -
## finance

10. A firm has a beta of 1.2. The market return equals 14 percent and the risk-free rate of return equals 6 percent. The estimated cost of common stock equity is _____ percent. (Please calculate the arithmetic solution and show your work)

*asked on January 11, 2012* -
## URGENT, Calculus!

A science project studying catapults sent a projectile into the air with an initial velocity of 30 m/s. The formula for distance (s) in meters with respect to time in seconds is s = -4.9t2 + 30t. Find the instantaneous rate of change (and thus the velocity

*asked on July 10, 2008* -
## statistics

The College Board reported the following mean scores for the three parts of the Scholastic Aptitude Test (SAT) (The World Almanac, 2009): Assume that the population standard deviation on each part of the test is = 100. a. What is the probability a sample

*asked on April 15, 2014* -
## calculus

A particle is moving along the x- axis so that its velocity at any time t ≥0 is give by v(t) = (2 pi - 5)t - sin(pi t) A. Find the acceleration at ay time t. B. Find the minimum acceleration of the particle over the interval [0,3]. C. Find the maximum

*asked on January 4, 2013* -
## Language

which of the following answer choices contains a metaphor a.his skin was sandpaper •• b. the sun sparked like a diamond c.she wanted to be like the birds and fly away d. they felt free when they ran Correct me

*asked on February 1, 2016* -
## math

A samll bar of gold measures 40 mm by 25 mm by 2 mm. One cubic millimeter of gold weighs about 0.0005 ounce. Find the volume in cubic millimeters and the weight in ounces of this small bar of gold. Thank you!

*asked on April 28, 2015* -
## math (8)

Find the area of the region enclosed by these graphs and the vertical lines x = 3 and x = 5 f(x)=x^2+5 g(x)=1

*asked on April 24, 2014* -
## statistics

Collina’s Italian Café in Houston, Texas, advertises that carryout orders take about 25 minutes (Collina’s website, February 27, 2008). Assume that the time required for a carryout order to be ready for customer pickup has an exponential distribution

*asked on April 9, 2014* -
## Calculus

The captain of a ship at sea sights a lighthouse which is 260 feet tall. The captain measures the the angle of elevation to the top of the lighthouse to be 21. How far is the ship from the base of the lighthouse?

*asked on October 18, 2011* -
## physics

A jewel thief decides to hide a stolen diamond by placing it at the bottom of a crystal-clear fountain. He places a circular piece of wood on the surface of the water and anchors it directly above the diamond at the bottom of the fountain, as shown below.

*asked on May 16, 2007* -
## statistics

Assume a binomial probability distribution has p = .60 and n = 200. c. What is the probability of 100 to 110 successes (to 4 decimals)? d. What is the probability of 130 or more successes (to 4 decimals)?

*asked on April 6, 2014* -
## World History

City-States Essay Assignment In what ways were the Indus Valley people an advanced civilization? In what ways did their civilization compare to an advanced modern civilization today? How is this? The Indus Valley people had great architectures. The yearly

*asked on August 17, 2013* -
## math

an adult whale weighs 120 tons. a baby blue whale weighs 1/40 of the weight of the adult blue whale. how many pounds does the baby blue whle weigh?

*asked on March 17, 2013* -
## Grade 10 Math

The Brooklyn Bridge in New York City is a suspension bridge that crosses the East River and connects Brooklyn to the island of Manhattan. If the origin is placed at the top of one of the cable suport towers, as shown, the shape of a cable that supports the

*asked on February 3, 2013* -
## calculus

consider g(x)= {a sin x + b, if x ≤ 2pi} {x^2 - pi x + 2, if x > 2pi} A. Find the values of a a b such that g(x) is a differentiable function. B. Write the equation of the tangent line to g(x) at x = 2pi. C. Use the tangent line equation from part B to

*asked on January 4, 2013* -
## Math

Quadrilateral PQRS has vertices P(0,6), Q(-6,-2), R(2,-4), and S(4,2). Verify that the quadrilateral formed by joining the midpoints of the sides of PQRS is a parallelogram.

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

Right triangle ABC is similar to triangle XYZ. If the length of side AB is 30 inches, the length of side BC is 60 inches, and the length of side YZ is 10 inches, what is the length of side XY? A.4 B.7 C.6 D.none of above

*asked on March 17, 2012* -
## Science

Which statement about subatomic particles is NOT true? A.) Protons and neutrons have almost the same mass. B.) Protons and electrons have opposite charges. C.) Unlike protons and electrons, neutrons have no charge. D.) Protons and neutrons have the same

*asked on December 18, 2011* -
## Physics

A tennis ball is thrown vertically upward with an initial velocity of +7.0 m/s. What will the ball’s velocity be when it returns to its starting point? The acceleration of gravity is 9.81 m/s^2. Answer in units of m/s AND How long will the ball take to

*asked on September 21, 2011* -
## FP/101

Which of the following is considered an advantage of home ownership? A. You are responsible for all repairs and maintenance. B. Interest paid on the mortgage of your home is tax deductible. C. Mortgage payments are always lower than rent payments. D.

*asked on November 21, 2010* -
## physics

a driver in a car traveling at a speed of 21.8 m/s sees a cat 101m away on the road. How long will it take for the car to accelarate uniformly to a stop in exactly 99m?

*asked on September 23, 2010* -
## CHEMISTRY

Hello, I am having trouble balancing this redox reaction WITHOUT using the half-reaction method. I believe this is because not all of the elements are in (aq). BrO3-(aq) + N2H4(g) --> Br-(aq) + N2(g) Br is reduced by a factor of 6. N is oxidized by a

*asked on April 21, 2010* -
## Chemistry

rank the compounds below in order of increasing vapor pressure at 298 K? A) c3h6 B) c4h8 C) c5h10

*asked on December 12, 2016* -
## Language

which category best describes the following sentence? Can kangaroos walk on all four legs? A) declarative B) Interrogative •• C)imperative D)exclamatory Correct me if I'm wrong!!

*asked on February 3, 2016* -
## math

A quart of paint will cover 3/4 of a wall . how many quarts are required to cover four walls of the same size

*asked on July 1, 2015* -
## statistics; emergency please help me

Given that z is a standard normal random variable, compute the following probabilities (to 4 decimals). c. P(z -1.5) d. P(z -2.5)

*asked on April 8, 2014* -
## Math

The length (in centimeters) of a typical Pacific halibut t years old is approximately f(t) = 190(1 − 0.955e−0.25t). (b) How fast is the length of a typical 9-year-old Pacific halibut increasing? cm/yr (c) What is the maximum length a typical Pacific

*asked on April 7, 2014* -
## finance

28. Ag Silver Mining, Inc. has $500,000 of earnings before interest and taxes at the year end. Interest expenses for the year were $10,000. The firm expects to distribute $100,000 in dividends. Calculate the earnings after taxes for the firm assuming a 40

*asked on January 12, 2012* -
## physics

A car of mass m1 = 2000.0kg is moving at speed v1i = 20.0m/s towards East. A truck of mass m2 = 5000.0kg is moving at speed v2i = 10.0m/s towards North. They collide at an intersection and get entangled (complete inelastic collision). 1. What is the

*asked on April 4, 2018* -
## Physics

A golfer takes two strokes to putt a golf ball into a hole. On the ﬁrst stroke, the ball moves 4.0m at an angle 60◦ East of North. On the second, it moves 3.0m at an angle 70◦ South of East. If the golfer had instead hit the ball directly into the

*asked on January 25, 2018* -
## science

Two bulbs each of resistance 2.0 ohms are connected in parallel with a battery. Calculate the current flowing through any of the bulbs if the voltage of the battery is 0.2V

*asked on November 27, 2017* -
## Math

What value of x will make the equation below true? 2x-6=3x+1-x-7

*asked on August 15, 2016* -
## Technology

Which of the following is not an example of an Objective question? Multiple choice Essay True/false Matching•• Why is it important to recognize the key word in an essay question? It will provide the answer to the essay It will show you a friends answer

*asked on February 2, 2016* -
## Math

What is the probability of getting either blue or freen on a spinner that is 3/10 green and 1/5 blue? I added 3 and 1 and got 4. So is my answer 4/10 ?

*asked on October 9, 2015* -
## Accounting 8

The following information is available for Walker Industries: Beginning work in process inventory $30,000 Ending work in process inventory $25,000 Cost of goods manufactured $180,000 Compute total current manufacturing cost?

*asked on September 9, 2014* -
## *math (6)

The quantity demanded x (in units of a hundred) of the Mikado miniature cameras per week is related to the unit price p (in dollars) by p = −0.2x^2 + 220 and the quantity x (in units of a hundred) that the supplier is willing to make available in the

*asked on April 23, 2014* -
## statistics (4)

For a t distribution with 16 degrees of freedom, find the area, or probability, in each region. a. To the right of 2.120. (Use 3 decimals.)

*asked on April 22, 2014* -
## statistics (6)

The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random sample of 50 business travelers is selected and each traveler

*asked on April 22, 2014* -
## Math

Find the average value of the function f over the interval [-1, 2]. f(x)=1-x^2

*asked on April 15, 2014* -
## statistics

Assume that the population proportion is .55. Compute the standard error of the proportion, ( ), for sample sizes of 100, 200, 500, and 1000 (to 4 decimals). a. 100? b. 200? c. 500? d. 1000?

*asked on April 14, 2014* -
## statistics

Assume a binomial probability distribution has p = .60 and n = 200. a)What are the mean and standard deviation (to 2 decimals)? b)Why can the normal probability distribution be used to approximate this binomial distribution? c)What is the probability of

*asked on April 5, 2014* -
## Math

A radioactive substance decays according to the formula Q(t) = Q0e−kt where Q(t) denotes the amount of the substance present at time t (measured in years), Q0 denotes the amount of the substance present initially, and k (a positive constant) is the decay

*asked on April 5, 2014* -
## Physics

A weather balloon carrynig a data measurement(DM) is rising quickly at a constant velocity, U. when its 60m above ground, balloon pops and the dm experiences freefall. It reaches ground 4 seconds after the balloon pops. If DM set hits ground at speed

*asked on June 24, 2013* -
## Math

The perimeter of a pool table is about 7.8m. Four times the length equals nine times the width. What are the dimensions? I need to find 2 equations first. I got 2l + 2w= 7.8 I cant seem to get the other one

*asked on September 16, 2012* -
## chemistry

calculate the theoretical weight of sodium borohydride need to reduce 50 mg of benzil

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

Your firm has the option of making an investment in new software that wil cost $130,000 today and is estimated to provide the savings shown in the table over5 years. year savings estimate 1 $35,000 2 50,000 3 45,000 4 25,000 5 15,000 should the firm make

*asked on December 17, 2011* -
## Science

Assume that a parcel of air is forcd to rise up and over a 6000 foot high mountain.The initial temp of the parcel at sea level is 76.5 F, and the LCL of the parcel is 3000 feet. The DAR is 5.5 * F/1000m and the SAR is 3.3*c/1000m. Assume that condensation

*asked on November 25, 2011* -
## Alg 1.

The local zoo keeps track of how many dragonflies are breeding in their insect exhibit each day. Day: 1, 2, 3, 4, 5 Dragonflies: 9, 18, 36, 72, 144 It's exponential growth. A. Write an equation for the function that models the data. B. Use your equation to

*asked on November 2, 2011* -
## Business Managment

Problem 11.3 -- Kelly is a 35 year old single parent with a one-year-old son. She earns $45,000 a year as a marketing analyst and has employer paid group life insurance worth twice her annual salary. She also participates in her employer’s 401(k)

*asked on October 14, 2011* -
## chem

What mass of copper(II) nitrate would be produced from the complete reaction of 25.1 g of copper, according to the chemical reaction shown below? Cu + 2 AgNO3 ----> Cu(NO3)2 + 2 Ag

*asked on September 15, 2010* -
## CHEMISTRY

2NO(g) + O2(g) --> 2NO2(g) Derive the theoretical rate law and indicate whether or not this is a possible mechanism for the above reaction: (1) 2NO(g) * N2O2(g) (fast) (2) N2O2(g) + O2(g) --> 2NO2(g) (slow) Extra Info: This reaction is third order overall.

*asked on April 25, 2010* -
## design.

pls help me answer this question. thank you:) youre repairing an armhole seam in a turtleneck used primarily for skiing.The stitching has come loose because of the extra movement.What type of hand stitch do you use? A.backstitch B.slipstitch C.running

*asked on December 15, 2009* -
## chemistry

Calculate the molar mass of CH4 gas at STP when 5.46L Of the gas weights 4g

*asked on June 27, 2020* -
## Maths

A flugpole and a building stand on the same horizontal level. From the point P at tue bottom of the building, the angle of elevation of the top of the flogpole is 65 degree from the top Q of the building the angle of elevation of the point T is 25 degree.

*asked on February 28, 2020* -
## Art

an environment artist created a piece in protest of trash. Anticipation negative public reaction, the artist decided to display the work anyway. what is the most likely reason? A. The artist believed that the purpose of the work was to stir up awareness B.

*asked on February 5, 2016* -
## Math

a rug in the shape of a regular quadrilateral has a side length of 20ft what is the perimeter of the rug? 4ft 5ft•• 40ft 80ft Correct me if I'm wrong!!

*asked on February 5, 2016* -
## English

In three to five sentences, explain how Ambrose Bierce's use of foreshadowing or flashback influences "An Occurrence at Owl Creek Bridge."

*asked on December 20, 2014* -
## statistics 2

In Hamilton County, Ohio the mean number of days needed to sell a home is 86 days (Cincinnati Multiple Listing Service, April, 2012). Data for the sale of 40 homes in a nearby county showed a sample mean of 80 days with a sample standard deviation of 20

*asked on September 24, 2014* -
## Accouning 7

Job 31 has a direct materials cost of $300 and a total manufacturing cost of $900. Overhead is applied to jobs at a rate of 200 percent of direct labor cost. Use the relationships among total manufacturing costs, conversion cost, and prime cost to

*asked on September 9, 2014* -
## Accounting 3

Wheeler’s Bike Company manufactures custom racing bicycles. The company uses a job order cost system to determine the cost of each bike. Estimated costs and expenses for the coming year follow: Bike parts $350,000 Factory machinery depreciation $55,000

*asked on September 9, 2014*