# Mariah

Popular questions and responses by Mariah-
## Math

John invested his savings in two investment funds. The amount he invested in Fund A was $8000 less than the amount he invested in Fund B. Fund A returned a 4% profit and Fund B returned a 8% profit. How much did he invest in Fund B, if the total profit

*asked on August 24, 2015* -
## Computer Literacy

1. Which vendor did IBM select to create the operating system for the IBM PC? (A) Microsoft Macintosh DEC Dell 2. Which of the following components was a significant development featured in the Macintosh LISA computer? (A) C Prompt Disk Operating System

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

A contestant in a winter games event pushes a 59.0 kg block of ice across a frozen lake as shown in the figure below. The coefficient of static friction is 0.1 and the coefficient of kinetic friction is 0.03. The block is being pushed at a direction of 23

*asked on February 17, 2015* -
## math

A mother wants to invest $9,000.00 for her son’s future education. She invents a portion of the money in a bank certificate of deposit (Cd account) which earns 4% and the remainder in a saving bond that earns 7%. If the total interest earned after one

*asked on March 9, 2011* -
## computer literacy

1. Which of the following options would return a true statement for the sentence: The sky is bluest early in the morning. (A) Sky and blue Sky not morning Sky or dark Sky and evening 2. Famed science fiction writer H. G. Wells once envisioned something to

*asked on April 27, 2014* -
## Algebra

Mattie Evans drove 250 miles in the same amount of time that it took a turbopropeller plane to travel 1250 miles. The speed of the plane was 200 mph faster than the speed of the car. Find the speed of the plane

*asked on November 6, 2010* -
## Chemistry

The specific heat capacity of copper is 0.09 cal/g°C. How much energy is needed to flow into a 10-gram sample to change its temperature from 20°C to 21°C?

*asked on July 6, 2016* -
## Physics

The Asian Silver Carp is an invasive species of fish which has infested a number of American rivers. The disturbance of passing boats has been known to make these fish leap large distances out of the water. One such fish leaps with an initial velocity at

*asked on October 13, 2015* -
## Chemistry 151

How many moles of chloride ions are in 0.2580 g of aluminum chloride?

*asked on September 23, 2015* -
## math

which is greater 20 feet or 7 yards

*asked on February 19, 2014* -
## Economics

6. Show the effect of each of the following events on the market for labor in the computer manufacturing industry. Use graphs. a. Congress buys personal computers for all American college students. Wouldn't the demand curve shift to the right while the

*asked on December 4, 2006* -
## English

Which choice effectively combines these two sentences? 'The plainer rooms are more sparsely furnished. Their architectural features, furnishings, and decorations are just as true to the periods they represent.' A. The plainer rooms are more sparsely

*asked on July 20, 2018* -
## 5 QUESTIONS PLZ HELP!

1) which of the following numbers are equivalent to 20%?(Choose all that apply)(only 2) A. o.oo2 B. 1/4 C. 0.20 D. 1/5 2)which of the following numbers are equivalent to 35%?(choose all that apply)(only 2) A. 7/20 B. 6/20 C. 3.5 D. 0.35 3) which of the

*asked on January 25, 2016* -
## Chemistry (Gen Chem 1)

Assume diameter of a neutral helium atom is 1.40x10^2pm. Suppose that we could line up helium atoms side by side in contact with one another. How many atoms would it take to complete the distance of 6.70cm from end to end?

*asked on February 7, 2015* -
## chemistry

How many grams of O2 are contained in a 25.0L sample at 5.20 atm and 28.0C?

*asked on November 13, 2014* -
## Economics

3. Suppose the Clean Springs Water Company has a monopoly on bottled water sales in California. If the price of tap water increases, what is the change in Clean Springs' profit-maximizing level of output, price, and profit? Explain in words and with a

*asked on December 3, 2006* -
## Developmental Psychology

What are the basic components of a Western funeral rite, and how are other cultures' rites similar and different?

*asked on December 10, 2019* -
## Math

What is the greatest odd number less than 250 ? Exlplain how you know.

*asked on January 24, 2017* -
## Chemistry

In the reaction C + O2 → CO2, 18 g of carbon react with oxygen to produce 72 g of carbon dioxide. What mass of oxygen would be needed in the reaction?

*asked on July 14, 2016* -
## sociology

1. Justice Potter Stewart would most agree with which claim about obscenity? (B) It is easy to concretely determine what obscenity is. People can intuitively understand what obscenity is. Obscenity ought to be allowed so long as no one is harmed. Obscenity

*asked on February 17, 2014* -
## chemistry

hoose any two temperatures and corresponding vapor pressures in the table given, and use those values to calculate for dichloromethane (in ). () () 263 80.1 273 133.6 283 213.3 293 329.6 303 495.4 313 724.4

*asked on January 20, 2010* -
## Economics

10. An industry currently has 100 firms, all of which have fixed cost of $16 and average variable cost as follows: Quantity / Average variable cost: (1/$1),(2,$2), (3,$3), (4,$4), (5,$5), and (6,$6) b. The price is currently $10. What is the total quantity

*asked on November 28, 2006* -
## Economics

1. Your roommate's long hours in chem lab finally paid off--she discovered a secret formula that lets people do an hour's worth of studying in 5 minutes. So far, she's sold 200 doses and faces the following average-total-cost schedule: Q = 199 & ATC = $199

*asked on November 19, 2006* -
## Economics

The chapter states that the elderly population in the United States is growing more rapidly than the total population. In particular, the number of workers is rising slowly, while the number of retirees is rising quickly. Concerned about the future of

*asked on November 17, 2006* -
## Chemistry

Given the balanced neutralization equation: H2SO4+2KOH→K2SO4+2H2O How many moles of potassium hydroxide (KOH) are required to neutralize 4.5 mol of sulfuric acid (H2SO4)? Assume that the sulfuric acid completely dissociates in water. 2 mols of KOH = 1

*asked on June 30, 2016* -
## physics

What is the heat of fusion of silver? what is the heat of vaporization for silver? what is the specific heat of silver? thank you.

*asked on April 10, 2011* -
## Physics 202-help

If we have just counted 15 seconds between the lightning and thunder, how far away do we predict the center of the thunderstorm to be using the 3 second rule and What was the percent difference between the prediction and the real distance of the

*asked on February 17, 2017* -
## algerba

Coco has a jar containing pennies and nickles. There is $9.20 worth of coins in the jar. If she could switch the number of pennies with the number of nickles, there would be $26.80 worth of coins in the jar. How many pennies and nickles are in the jar?

*asked on December 1, 2016* -
## Math

The distance between bills house and his aunt house is 835 miles. About how many miles would he drive if he made. 4 one-wat trips

*asked on November 14, 2016* -
## Chemistry

All the following are necessary parts of a neutralization reaction except A) an acid B) an indicator C) water D) a salt.

*asked on July 12, 2016* -
## Physics

a)In the series circuits, what do you notice about the voltage across each resistor compared with the voltage of the battery? (There could be more than one answer) 1.The resistor voltages multiplied together give the battery's voltage 2.The resistor

*asked on May 4, 2016* -
## Physics

A child and sled with a combined mass of 45.0 kg slide down a frictionless hill. If the sled starts from rest and has a speed of 8.0 m/s at the bottom, what is the height of the hill (include units)?

*asked on December 2, 2015* -
## Physics

The 3.1 kg box shown below slides with a constant speed down an incline at an angle of θ = 28.0° to the horizontal. What is the coefficient of kinetic friction?

*asked on November 14, 2015* -
## Trigonometry

Use a sine function to graph a sound wave with a period of 0.004 of a second and an amplitude of 3 cm. Find the frequency in hertz for this sound wave. (Enter only the number.)

*asked on October 1, 2014* -
## Communication

Question 1. 1. Which of the following guidelines are most correct regarding rules for responding to self-disclosure? (C) Respond back immediately, support the person disclosing, and listen critically. Listen critically, never use the disclosure against the

*asked on September 30, 2014* -
## Reading Book Project

What are three objects that represent The Maze Runner?

*asked on January 6, 2013* -
## Chemistry

Calculate the molarity of a 100. mL solution containing 22.3 g of sucrose (C12H22O11)

*asked on September 24, 2012* -
## Physics

A winning basketball shot in the last second of a game is launched with an initial speed of 12.2 m/s, 68 degrees above horizontal, and at a height of 2 m above the floor. The ball passes through the basketball hoop mounted at 3.05 m above the floor. A.

*asked on March 7, 2012* -
## MATH

A truck enters a highway driving 60mph. A car enter the highway at the same place 14 minutes later and drives 66mph in the dame direction. From the time the car enters the highway, how long will it take the car to pass th truck?

*asked on March 9, 2011* -
## Math help

Losing your bags during airline travel is not all that uncommon. Recently, an airline was cited for losing customers' baggage 8% of the time. A test is conducted by randomly selecting 20 customers for that airline and observing whether they had lost their

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

Solve. 9-9x/4x+8 multiplied by 2x+4/3x+3

*asked on October 31, 2010* -
## Algebra

Juan is 8 years older than his sister Rosa.One day, Juan tells Rosa he is twice her age, but will only be twice her age for one year.To figure out the ages of Juan and Rosa you must first identify the variables. What are the variables in this problem?

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

Calculate the freezing- and boiling-point changes for a solution containing 12.0 g of naphthalene (C10H8) in 50.0 g of benzene.

*asked on May 2, 2010* -
## 7th grade

WHAT DOES CONTRASTING ELEMENTS MEAN?

*asked on October 9, 2008* -
## chemistry

A mixture of 1.441 g of H2 and 70.24 g of Br2 is heated in a 2.00-L vessel at 700 K. These substances react as follows. H2(g) + Br2(g) arrow 2 HBr(g) At equilibrium the vessel is found to contain 0.627 g of H2. calculate their equilibrium concentrations

*asked on January 22, 2013* -
## Economic

Suppose that labor is the only input used by a perfectly competitive firm that can hire workers for $50 per day. The firm’s production function is as follows: Days of Labor/Units of Output: 0/0, 1/7, 2/13, 3/19, 4/25, 5/28, 6/29, 7/29 c. Compute the

*asked on December 4, 2006* -
## Economic

How is income distribution affected in monopolies? The market for fertilizer is perfectly competitive. Firms in the market are producing output, but they are currently making economic losses. a. How does the price of fertilizer compare to the average total

*asked on November 26, 2006* -
## Music

Did the Phantom of the Opera have a traditional orchestra without amplification? I thought that the Phantom of the Opera didn't ave a traditional orchestra without amplification is this correct? Did the Phantom of the Opera used successfully opera voices

*asked on November 25, 2006* -
## Economics

Consider total cost and total revenue given in the following: (Quantity/Total Cost/Total Revenue): (0/8/0), (1/9/8), (2/10/16), (3/11/24), (4/13/32), (5/19/40), (6/27/48), (7/37/56) Can you tell whether this firm is in a competitive industry? If so, can

*asked on November 23, 2006* -
## Math

9th term for A(n) = -14 + (n - 1)(2)

*asked on March 24, 2020* -
## Social Studies

PLEASE HELP NOW! 20 POINTS Place these events in order by writing a number in the box to the right of each event. 1 should be the event that happened first, with 4 being the event that happened last. The Muslim-ruled Delhi sultanate was established Turkik

*asked on February 27, 2020* -
## math

how much would you pay for 14.2 gallons of gas that cost $2.08 gallon

*asked on May 8, 2019* -
## Math

The area of a square floor on a scale drawing is 36 square centimeters, and the scale drawing is 1 centimeter: 5 ft. What is the area of the actual floor? What is the ratio of the area in the drawing to the actual area?

*asked on February 19, 2019* -
## math

Suppose c and d vary inversely, and d = 2 when c = 17.

*asked on October 23, 2018* -
## math

a triangle has one side that lies along the line y=1/4x and another that lies along the line y=(-1/4)x. which of the following points could be a vertex of the triangle? a. (4,4) b. (0,0) c. (-4,-2) d. (1,8)

*asked on August 14, 2018* -
## Math

Which of the following is the BEST illustration of congruence? A. a pair of shoes B. two dinner plates from the same set of dishes C. any two tables D. a slide and its projection on a screen is a the correct answer?

*asked on July 24, 2018* -
## English/science

Does it make sense to say the stratosphere is the limit? My group is working on a story for our weather balloon that we're gonna launch next week

*asked on May 4, 2018* -
## English

What's another way to say: Now, the initiative has expanded its mission? Been thinking for a while, and nothing is popping up..

*asked on February 28, 2018* -
## Social Studies

Explain the impact of multiculturalism on Canada.

*asked on October 13, 2017* -
## Statistics

Consider a t distribution with 30 degrees of freedom. Compute P(t "greater than or equal to" -1.50). Round your answer to at least three decimal places. Consider a t distribution with 6 degrees of freedom. Find the value of c such that P(-c

*asked on March 17, 2017* -
## math

A relief package is released from a helicopter at 1600 feet. The height of the package can be modeled by the equation h(t)= -16t^2+1600 where h is the height of the package in feet and t is the time in seconds. The pilot wants to know how long it will take

*asked on August 2, 2016* -
## Chemistry

What is theoretical yield in grams of CO2 formed from reaction of 3.12g CS2 and 1.88g O2?

*asked on July 8, 2016* -
## Chemistry

Balance both the atoms and charges of the following chemical equation: Ce4+ + S2 −→ Ce3+ + S This is what I came up with: 3Ce4+ + S2 −→ 4Ce3+ + 2S

*asked on July 1, 2016* -
## Social Studies

Which of the following most contributed to the rise of Sumer? A. Farming** B. Military Power C. Isolated location D. Trade You are a young woman in Saudi Arabia. Which of these should you not plan to do? A. Apply for a job outside the home** B. Take a test

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

Company A charges $11 per month plus $0.05 per minute, while company B charges $0.15 per minute with no monthly charge. For how many minutes will the monthly cost be the same??

*asked on February 10, 2016* -
## Science

can you help me in mater and energy

*asked on January 13, 2016* -
## Physics

A boulder is raised above the ground so that the ground is 200j . Then it is dropped. What is its kinetic energy before it hits the ground?

*asked on January 12, 2016* -
## Physics

A 91 kg man stands on a spring scale in an elevator. Starting from rest, the eleva- tor ascends, attaining its maximum speed of 1.7 m/s in 1.07 s. It travels with this constant speed for the next 5 s, undergoes a uniform negative acceleration for 1.67 s,

*asked on January 11, 2016* -
## Physics

Include units with all of your answers. A 1.84 kg bucket full of water is attached to a 0.76 m long string. a. If you swing the bucket in a vertical circle, what is the minimum speed you must swing it so the water does not fall out at the top of the

*asked on January 11, 2016* -
## Lafayette

How do you model 624 without using tens

*asked on December 16, 2015* -
## Physics

A cargo plane is moving with a horizontal velocity of vx = +223 m/s at a height of y = 980 m above level ground as shown in the figure below when it releases a package. Ignoring air resistance, how much time will it take the package to reach the ground?

*asked on October 13, 2015* -
## Physics

The place kicker on a football team kicks a ball from ground level with an initial speed of 22.40 m/s at an angle of 15.0° above the horizontal. How far does the ball travel in the x-direction before it lands on the ground again? You may neglect air

*asked on October 13, 2015* -
## Basic Dressmaking Processes

1. In order to produce a professional-looking garment, pressing should be done A. at each process. B. only when the garment is complete. C. just on the right side of the fabric. D. quickly and with a light touch. 2. A wooden clapper is used to A. hold an

*asked on August 20, 2015* -
## math

at a park 96 brown bag lunches were given out in thirty minutes if 29 bags remain and x represents the starting number of brown bag lunches which equation could be used to determine the value of x

*asked on July 8, 2015* -
## math

is the area of ANY triangle 1/2 b x h ?

*asked on May 16, 2015* -
## math

Warren measured a recentangular window to find Out how much plastic he would need to cover it.The window measured 5ft 6 inches by2ft9inches.about how many square inches of plastics does Warren need to cover the window?

*asked on April 20, 2015* -
## math

Between 6a.m.and 10a.m.the temperature rose by 5°f.between 10a.m.and 2p.m.the temperature rose by 6°f.between 2p.m.and 6p.m.the temperature rose by 0°c.would you be able to tell how much the temperature rose since 6a.m?

*asked on April 20, 2015* -
## Math

the perimeter if a rectangle is 42 centimeters. the lenght of a rectangle can be represented by (x+4), and its width acn be represented by (2x-7). what are the dimensions of this rectangle in centimeters?

*asked on March 29, 2015* -
## Chemistry 2

The equilibrium constant, Kc, for the following reaction is 1.54E-2 at 643 K. 2HI(g) H2(g) + I2(g) When a sufficiently large sample of HI(g) is introduced into an evacuated vessel at 643 K, the equilibrium concentration of I2(g) is found to be 0.351 M.

*asked on March 21, 2015* -
## Chemistry 2

The equilibrium constant, Kc, for the following reaction is 1.54E-2 at 643 K. 2HI(g) H2(g) + I2(g) When a sufficiently large sample of HI(g) is introduced into an evacuated vessel at 643 K, the equilibrium concentration of I2(g) is found to be 0.351 M.

*asked on March 21, 2015* -
## Tulane University

Frank and Oswalt report a molar absorptivity of 4700 L mol^-1 cm^-1 for thiocyanatoiron(lll) ion. What absorbance would you expect for a soloution that it 1.0e-4 M in thiocyanatorion(lll) ion, if the path length is 1.00 cm?

*asked on March 6, 2015* -
## English

Which poetic line contains both paradox and consonance? One summer day, all day I drove it hard How long it might last, how young it might be Ay, look, and he'll smile thy gloom away At least to know the worst is sweet

*asked on January 12, 2015* -
## chemistry

A 0.248 M ZnCO3 solution is made from 21.4 g of solute? What is the volume of the solution?

*asked on January 12, 2015* -
## Math

The inflection point of the curve y = x4 − 8x3 + 24x2 + 7x − 3 is? So I got (1,21) I was wondering if this is correct because sometimes I will be doing something completely wrong and not even realize it.

*asked on November 16, 2014* -
## physics

A bush baby, an African primate, is capable of leaping vertically to the remarkable height of 2.3 m. To jump this high, the bush baby accelerates over a distance of 0.14m while extending the legs. The acceleration during the jump is approximately constant.

*asked on October 9, 2014* -
## physics

Heather and Jerry are standing on a bridge 53m above a river. Heather throws a rock straight down with a speed of 12m/s . Jerry, at exactly the same instant of time, throws a rock straight up with the same speed. Ignore air resistance. How much time

*asked on October 9, 2014* -
## Trigonometry

The depth d in feet of the water in a bay at is given by d(t) = 3/2 sin (5πt/31) + 23 where t is time. Graph the depth of the water as a function of time. What is the maximum depth of the water to the nearest tenth of a foot? (Enter only the number.)

*asked on October 2, 2014* -
## Trigonometry

A little confused on this one... Find the amplitude and the period of h(x) = 1/2 cos (-πx).

*asked on October 1, 2014* -
## Trigonometry

Identify the amplitude and the period of the function c(x) = 3cos (x + π).

*asked on October 1, 2014* -
## Trigonometry

Solve for θ in the equation cos θ = -0.181 when 180º < θ < 360º. Round your answer to the nearest tenth of a degree.

*asked on September 30, 2014* -
## Trigonometry

A painter wants to lean a 30-foot ladder against a wall. Safety guidelines recommend that the distance between the base of the ladder and the wall should be 1/4 of the length of the ladder. To the nearest degree, what acute angle should the ladder make

*asked on September 30, 2014* -
## algebra

1. Kevin ran 3 miles less than Steve ran. The sum of their distances is 21 miles. How far did Steve run? The domain of the solution is {0, 10.5, 12, 18}.

*asked on August 30, 2014* -
## geometry

if a polygon has a volume of 19 cm and is dilated by a factor 3\2 , what will be the volume of the dilated polygon

*asked on August 4, 2014* -
## Computer Literacy

2. Which of the following components was a significant development featured in the Macintosh LISA computer? (C) C Prompt Disk Operating System Graphical User Interface) Memory 4. Which is NOT a function associated with a motherboard? (D) Expansion slot

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

The purines in DNA are A.thymine and cytosine B.thymine and guanine C.adenine and guanine D.adenine and cytosine

*asked on April 1, 2014* -
## math

how much greater is 5 miles than 8,ooo

*asked on February 19, 2014* -
## Volumes of pyramids and cones

Find the missing dimensions. Rectangular pyramid. L=8m, w=4.6m, v=88m3

*asked on February 19, 2014* -
## Science

how do you draw a bohr diagram of a atom and a ion and how are they different????

*asked on February 12, 2014* -
## Criminology Statistics

A given distribution has a mean of 60. A score of 75 had a corresponding z of +2.00. The standard deviation is

*asked on March 1, 2013* -
## science

What diseases can ultrasounds detect and how? thank you

*asked on January 19, 2012*

## Pages

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