# Dee

Popular questions and responses by Dee-
## BUS math

Bari Jay a gown manufacturer received an order for 600 prom dresses from China. Her cost is $35 a gown. If her markup based on selling price is 79%, what is the selling price of each gown? Round to the nearest cent.

*asked on March 31, 2015* -
## Cal 1

Verify the given linear approximation at a = 0. Then determine the values of x for which the linear approximation is accurate to within 0.1. (Enter your answer using interval notation. Round your answers to three decimal places.) (1 + 2x)^1/4 ≈ 1 + 1/2x

*asked on March 7, 2013* -
## Chemistry

Imagine two solutions with the same concentration and the same boiling point.? Imagine two solutions with the same concentration and the same boiling point, but one has ethanol as the solvent and the other has carbon tetrachloride as the solvent. Determine

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

Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion of its customers who decide to eat in the restaurant (as opposed to ordering the food "to go"), so it can make decisions regarding the possible construction

*asked on June 11, 2017* -
## Physics

Two curves on a highway have the same radii. However, one is unbanked and the other is banked at an angle θ. A car can safely travel along the unbanked curve at a maximum speed v0 under conditions when the coefficient of static friction between the tires

*asked on March 4, 2013* -
## physics

An object with mass m1=5.00 kg rests on a frictionless horizontal table and is connected to a cable that passes over a pulley and is then fastened to a hanging object with mass m2= 10.0 kg. Find the acceleration of each object and the tension in the cable.

*asked on September 26, 2011* -
## History

12. What effect did technology have on World War I? It enabled nations to defeat their enemies with few casualties. It greatly increased the number of casualties.

*asked on November 13, 2015* -
## Math

What ratio represents the probability of drawing a red card from a standard deck of 52 cards?

*asked on April 24, 2010* -
## Physics

During volcanic eruptions, chunks of solid rock can be blasted out of the volcano; these projectiles are called volcanic bombs. (a) At what initial speed would a bomb have to be ejected, at angle 35degrees to the horizontal, from the vent at A in order to

*asked on December 28, 2015* -
## Physics

The coefficient of static friction between the 3.00 kg crate and the 35.0 degree incline is .300. What minimum force must be applied to the crate from sliding down the incline?

*asked on September 28, 2011* -
## Chemistry

The vapor pressure of pure acetone (propanone) is 266 torr. When a non-volatile solute is added, the vapor pressure of acetone above the solution falls to 232 torr. What is the mole fraction of acetone in the solution? Show work. A) 0.69 B) 0.32 C) 0.13 D)

*asked on February 27, 2013* -
## Math

Bill paints murals. He recorded the total amount of white paint that he used for his murals each month in the table below. In April Bill used 2/3 of the amount that housed in May. Fill in the amount of white paint BIll used in April in the table below.

*asked on April 1, 2017* -
## English

In terms of style and technique, "Old Ironsides" is __________. distinctive and unique similar to many European poems

*asked on October 30, 2015* -
## chemistry

When disaccharide beta is hydrolyzed, which monosaccharide units are produced?

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

Starting from rest, a 5.00 kg block slides 2.50 m down a rough 30.0 degree incline. The coefficient of kinetic friction between block and the incline is .436. Determine the work done by the friction force between block and incline and the work done on the

*asked on October 12, 2011* -
## college algebra

the following rational function gives the number of days it would take two construction crews, working together, to frame a house that crew 1 (working alone)could complete in t days and crew 2 (working alone) could complete in t+3 days.

*asked on October 14, 2013* -
## Physics

Gas is confined in a tank at a pressure of 11 ATM and a temperature of 25 degree Celsius. If 2/3 of the gas is withdrawn and the temperature is raised to 75 degree Celsius, what is the new pressure in the tank?

*asked on November 26, 2011* -
## Math

An architect designs a house that is 12 m wide. The rafters holding up the roof are equal length and meet at an angle of 68°. The rafters extend 0.6 m beyond the supporting wall. How long are the rafters? Hi - I was wondering if you could help me with

*asked on August 21, 2011* -
## college algebra

A partial solution set is given for the polynomial equation. Find the complete solution set. (Enter your answers as a comma-separated list.) x^3 + 3x^2 − 14x − 20 = 0; {−5}

*asked on November 18, 2013* -
## college algebra

Use a calculator to help solve the problem. The intensity I of light (in lumens) at a distance x meters below the surface is given by I = I0 k x, where I0 is the intensity at the surface and k depends on the clarity of the water. At one location in the

*asked on November 4, 2013* -
## geometry

the measures of the interior angles of a pentagon are 2x, 6x, 4x-6, 2x-16 and 6x+2. What is the measure of the largest angle

*asked on April 26, 2010* -
## Math

Translate the phrase into an expression: 8 times the sum of 7 and y

*asked on September 26, 2019* -
## Math

Which of the following sets of ordered pairs represents a function? {(5,2),(2,6),(5,10),(1,2)} {(-3,2),(2,6),(5,2),(1,7)} {(-3,2,(2,6),(3,10),(1,7)} {(-3,2),(2,6),(5,10),(2,-1)} ^dont get this one.. Which expression is equal to (f+g)(x)?

*asked on November 8, 2016* -
## chemistry

a piece of metallic iron (10 moles) was dissolved in concentrated hydrochloric acid. the reaction formed iron (II) chloride and hydrogen gas. how many moles of iron (II) chloride were formed?

*asked on March 26, 2014* -
## chemistry

What is the type of glycosidic bond in case alpha?

*asked on December 16, 2012* -
## Chemistry

When disaccharide alpha is hydrolyzed, which monosaccharide units are produced? A) D-glucose and D-fructose monosaccharide units B) two D-fructose monosaccharide units C) two D-glucose monosaccharide units

*asked on December 16, 2012* -
## Physics 2

A 10 g bullet is fired into, and embeds itself in, a 2 kg block attached to a spring with a force constant of 19.6 n/m and whose mass is negligible. How far is the spring compressed if the bullet has a speed of 300 m/s just before it strikes the block and

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

Explain, in terms of electronegativity, why an H-F bond is expected to be more polar than an H-I bond.

*asked on January 4, 2011* -
## chemistry

A major component of gasoline is octane (C8H18). When octane is burned in air it chemically reacts with oxygen (O2) to produce carbon dioxide (CO2) and water (H2O). What mass of oxygen gas is consumed by the reaction of 8.17g of octane?.

*asked on December 4, 2016* -
## algebra

a hot-air balloon is tethered to the ground and only moves up and down. You and a friend take a ride on the balloon for approximately 25 minutes. On this particular ride the velocity of the balloon, v(t) in feet per minute, as a function of time, t in

*asked on November 21, 2013* -
## college algebra

In 4 years, 30% of a radioactive element decays. Find its half-life. (Round your answer to one decimal place.) _____ yr

*asked on November 17, 2013* -
## physics

A golfer hits a shot to a green that is elevated 3 m above the point where the ball is struck. The ball leaves the club at a speed of 16.1 m/s at an angle of 41.1° above the horizontal. It rises to its maximum height and then falls down to the green.

*asked on January 31, 2013* -
## chemistry

Gaseous methane CH4 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O . Suppose 0.481 g of methane is mixed with 2.9 g of oxygen. Calculate the maximum mass of carbon dioxide that could be produced by the

*asked on October 3, 2014* -
## Chemistry

Explain how you would prepare 100.0 mL of 0.500 M NaCl solution. Include the appropriate glassware and calculations.

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

In a marathon race, Chad is out in front, running due north at a speed of 3.92 m/s. John is 92 m behind him, running due north at a speed of 4.33 m/s. How long does it take for John to pass Chad?

*asked on January 31, 2013* -
## English/Grammar

Having trouble finding the simple predicates in the follwing sentences.. 1.They have destroyed some buildings. 2.The insects bodies can turn wood into food. 3.The insects damage property. 4. These insects eat wood. 5. Most of the insects are workers or

*asked on September 30, 2007* -
## college math HELP!!!!!

The quantity demanded x each month of Russo Espresso Makers is 250 when the unit price p is $180; the quantity demanded each month is 1000 when the unit price is $150. The suppliers will market 750 espresso makers if the unit price is $80. At a unit price

*asked on January 19, 2014* -
## college algebra

An isotope of lead, 201Pb, has a half-life of 8.4 hours. How many hours ago was there 40% more of the substance? (Round your answer to one decimal place.) ____hr

*asked on November 17, 2013* -
## Physics

A vehicle is travelling at 25.0 m/s. It brakes provide an acceleration of -3.75 m/s^2[forward]. What is the driver's maximum reaction time if she is to avoid hitting an obstacle 95.0 m away? the answer is a number less than 0.5 second. can you tell me the

*asked on October 31, 2011* -
## Chemistry

How much HNO3 can be made from 25.0g of NO2?

*asked on June 23, 2011* -
## standard deviation

the mean is 3.5. dtandard deviation is .5. sally's score is 1.5 on test. how many standard deviations is she from the mean? billy scores 5. what is his standard score? what scale of measurement is being used? is it appropriate? why/why not?

*asked on March 24, 2010* -
## Math

I have a 3 part question that I have the answers for but I am still having issues understanding it. Looking for help with the explanation / steps on how you would get the answer. Question 1) The width of a rectangular field is 3h yards and it's length is 3

*asked on December 6, 2017* -
## math

find the image (0,0) after two reflections first across y=3 and then across X-axis

*asked on September 18, 2016* -
## English

What best describes Emily Dickinson's attitude towards death? A.sentimental B.angry C.accepting

*asked on November 19, 2015* -
## Chemistry

A solution contains Cr3+ ion and Mg2+ ion. The addition of 1.00 L of 1.55M NaF solution is required to cause the complete precipitation of these ions as CrF3(s) and MgF2(s). The total mass of the precipitate is 49.9g .Find the mass of Cr3+ in the original

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

The drawing shows a parallel plate capacitor that is moving with a speed of 30 m/s through a 3.1 T magnetic field. The velocity vector v is perpendicular to the magnetic field. The electric field within the capacitor has a value of 170 N/C, and each plate

*asked on February 26, 2014* -
## Algebra

Allison drove home at 68 mph but her brother who left at the same time could only drive at 54 mph. When Allison arived, her brother still had 84 miles to go. How far did Allison drive?

*asked on September 5, 2013* -
## social and criminal justice

Hello I have a 2 to 3 page paper due on Monday 11/14, 2011 and I am having trouble finding good reliable information to complete the assignment. The instructions are to: Prepare a paper identifying at least three changes expected in the field of criminal

*asked on November 11, 2011* -
## Math

Find the equation of the circle that satisfies the given conditions. Center at the origin and passes through (7, 9) 130 = ?

*asked on September 9, 2011* -
## math

Ajax is 8 km due west of Oshawa. Uxbridge is 16 km NW of Oshawa. How far is it from Ajax to Uxbridge? Explain whether you have enough information to solve this problem. my answer was 13.856 km but not confident how I found the angle oshawa to begin with. I

*asked on August 21, 2011* -
## Managerial Economics

At a recent board meeting, the president and CEO got into a heated argument about whether to shut down the firm's plant in Miami. The Miami plant should continue to operate, at least until a buyer is for the production facility. The president's argument

*asked on June 4, 2008* -
## math

Forty-eight sheep live on the farm. Thirty-six cows also live on the farm. What is the ratio of sheep to cows

*asked on April 25, 2017* -
## Chemistry

Theoretically how many grams of malachite should be formed when 1.5 moles of Copper Sulphate reacts with an excess of sodium carbonate?

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

The base of a solid is the region bounded by the parabola x^2 = 8y and y=4. Each cross section perpendicular to the y-axis is an equilateral triangle. Find the volume.

*asked on March 12, 2016* -
## algebra

A rental truck costs $50 plus $0.40 per mile. Write an equation that gives the cost of driving the truck x miles Use the intersection of graphs method to determine the number of miles that the truck is driven if the rental cost is $70. Solve part (b)

*asked on February 13, 2016* -
## History

Question 1 In the late nineteenth and early twentieth centuries, European nations formed alliances in order to __________. keep peace on the continent

*asked on November 13, 2015* -
## Math

If a and b are positive numbers, find the maximum value of f(x)=x^a(1−x)^b, 0≤x≤1 Your answer may depend on a and b.

*asked on February 8, 2015* -
## physics

An electric heater used to boil small amounts of water consists of a 25-Ω coil that is immersed directly in the water. It operates from a 60-V socket. How much time is required for this heater to raise the temperature of 0.50 kg of water from 29° C to

*asked on January 27, 2014* -
## college finite math

A product may be made using Machine I or Machine II. The manufacturer estimates that the monthly fixed costs of using Machine I are $17,000, whereas the monthly fixed costs of using Machine II are $14,000. The variable costs of manufacturing 1 unit of the

*asked on January 19, 2014* -
## Chemistry

A solution is made by mixing 37.0 mL of ethanol, C2H6O, and 63.0 mL of water.? Assuming ideal behavior, what is the vapor pressure of the solution at 20 °C? ethanol: 0.789 g/mL 43.9 torr water : 0.998 g/mL 17.5 torr

*asked on March 2, 2013* -
## Physics

The average distance separating earth and moon is 384000 km. What is the net gravitational force exerted by earth and moon on a 3.00 * 10^4 kg spaceship located halfway between them.

*asked on November 1, 2011* -
## math

Suppose the cost function associated with a product is C(x) = cx + F dollars and the revenue function is R(x) = sx, where c denotes the unit cost of production, s the unit selling price, F the fixed cost incurred by the firm, and x the level of production

*asked on May 7, 2011* -
## Finite Math

A bank deposit paying simple interest at the rate of 8% per year grew to a sum of $1200 in 10 months. Find the principal. (Round your answer to the nearest cent.)

*asked on May 7, 2011* -
## us history

"Although the economic growth of the United States between 1860 and 1900 has been attributed to a governmental policy of laissez-faire, it was in fact encouraged and sustained by direct government intervention." Assess the validity of this statement. What

*asked on January 13, 2011* -
## Science

Two cars have the same mass, but one is moving three times faster than the other. How much more work will be needed to stop the faster car?

*asked on February 14, 2009* -
## algebra

The length of a rectangular garden is 5 ft less than 3 times its width. If the perimeter of the garden is 22 ft, find the dimensions of the garden. I will start you off with... let the width be w, then the length is 3w - 5 I am pretty sure you can form the

*asked on May 13, 2007* -
## physics

A navy jet with a weight of 231 kN requires an airspeed of 85 m/s for liftoff. The engine develops a maximum force of 107 kN, but that is insufficient for reaching takeoff speed in the 90 m runway available on an aircraft carrier. What minimum force

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

The sum of ten and the quotient of a number xxx and 666.

*asked on March 24, 2020* -
## math

In a mixture of concrete, there are four lb of cement mix for each pound of gravel. If the mixture contains a total of 215 lb of these two ingredients, how many pounds of gravel are there?

*asked on February 4, 2018* -
## Math

Please help me with the following. Write a word phrase to represent the numerical expression below. 5 + ( 17 - 8 )

*asked on December 5, 2017* -
## Chemistry

The dosage of technetium -99m for a lung scan is 20 uci/ kg of body weight. How many millicuries should be given to a 50.kg patient (1 mci=1000uci)

*asked on March 2, 2015* -
## college finite math

Cowling's Rule is a method for calculating pediatric drug dosages. If a denotes the adult dosage (in milligrams) and if t is the child's age (in years), then the child's dosage is given by D(t) = (t + 1/24)a (a) Show that D is a linear function of t. Hint:

*asked on January 19, 2014* -
## social studies

daydreaming can be an expression of: A) repression B) denial C) sublimation D) projection My answer is D

*asked on September 29, 2013* -
## CHEM

joules to melt a 525g ice cube at 0∘C and to warm the liquid

*asked on September 8, 2013* -
## Cal

Find the critical number of the function. g(t) = | 4t - 9 |

*asked on April 3, 2013* -
## Cal 1

Find the linearization L(x) of the function at a. f(x) = x^4/5, a = 32

*asked on March 7, 2013* -
## chemistry

If 8.00g of methane is burned with 6.00g of oxygen. How much methane,oxygen,carbon dioxide,and water remain after the reaction is complete in grams?

*asked on November 12, 2012* -
## physis

A box slides downwards at a constant velocity on an inclined surface that has a coefficient of friction uK = .58 The angle of the incline, in degrees, is most nearly:

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

A 1.30-L sample of argon gas is at 1.02 atm and 21.5 degrees Celsius. a. what mass of argon is in the container. b. If the temperature is raised to 500 degrees celsius while the volume remains constant, calculate the new pressure, in stmospheres.

*asked on November 9, 2012* -
## physics

a jet plane flying at 550 m/s makes a curve. The radius of the circle in which the plane is flying is 9.0 X 10^3 m. What centripetal acceleration does the plane experience? Express this acceleration relative to g, the acceleration due to gravity.

*asked on November 1, 2011* -
## Finite Math

Find the effective rate of interest corresponding to a nominal rate of 6%/year compounded annually, semiannually, quarterly, and monthly. (Round your answers to two decimal places.)

*asked on May 6, 2011* -
## Science

what is the word equation for the formation of acid rain?

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

Heather is given the coordinates of the vertices of quadrilateral ABCD. ABCD. She is asked to prove whether the quadrilateral is a parallelogram. Her proof follows the diagram. Given: Quadrilateral ABCD ABCD has vertices at A(−8,−1), A(−8,−1),

*asked on March 4, 2020* -
## algebra

factorise 9- a^6+2a^3b^3-b^6

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

solve using law of sines or cosines A=?,B=51°,C=?,a=6m,b=?,c=7m

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

A tungsten wire has a radius of 0.077 mm and is heated from 20.0 to 1205 °C. The temperature coefficient of resistivity is α = 4.5 10-3 (C°)−1. When 110 V is applied across the ends of the hot wire, a current of 1.3 A is produced. How long is the

*asked on January 27, 2014* -
## college finite math

A division of a company produces "Personal Income Tax" diaries. Each diary sells for $6. The monthly fixed costs incurred by the division are $30,000, and the variable cost of producing each diary is $1. (a) Find the break-even point for the division. (x,

*asked on January 19, 2014* -
## college algebra

Solve the exponential equation using logarithms. Give the answer in decimal form, rounding to four decimal places. (Enter your answers as a comma-separated list.) 4^(x − 3) = 3^(2x) x = _____

*asked on November 18, 2013* -
## College Algebra

Use a calculator to help solve the problem. One isotope of holmium, 162Ho, has a half life of 22 minutes. The half-life of a second isotope, 164Ho, is 37 minutes. Starting with a sample containing equal amounts, find the ratio of the amounts of 162Ho to

*asked on November 4, 2013* -
## Algebra

Kevin stuffs shrimp in his job as a seafood chef. He can stuff 1200 shrimp in 4 hours. When his sister helps him, they can stuff 1200 shrimp in 3 hours. If kevin gets sick, how long will it take his sister to stuff 600 shrimp?

*asked on September 5, 2013* -
## Physics

a cylinder of gas is at a room temp (20 c) the air conditioner breaks down and the tempture rises to 58c what is the new pressure of the gas relative to its initial pressure?

*asked on July 30, 2013* -
## math

a rectangle has a length of 10 3/16 inches and a width of 6 7/8 inches. nwhat is the perimeter of the rectangle

*asked on May 29, 2013* -
## Physics

The drawing shows a sulfur dioxide molecule. It consists of two oxygen atoms and a sulfur atom. A sulfur atom is twice as massive as an oxygen atom. Using this information and the data provided in the drawing, find (a) the x coordinate and (b) the y

*asked on April 1, 2013* -
## physics

Two curves on a highway have the same radii. However, one is unbanked and the other is banked at an angle θ. A car can safely travel along the unbanked curve at a maximum speed v0 under conditions when the coefficient of static friction between the tires

*asked on February 28, 2013* -
## English

why wouldn't employees be paid or compensated for extensive overtime? Is the branch following eimployee contractual agreements and agency/branch policies? Is the Roanoke branch operating under different salary scales/schedules than others Phoenix offices?

*asked on July 16, 2012* -
## math

If 611 men at a conference comprise 65% of all people at the conference, how many people are at the conference?

*asked on April 14, 2012* -
## physics

An 845 N sled is pulled a distance of 180 m. The task requires 1.38 x 104 J of work and is done by pulling on a rope with a force of 122 N. The rope is held at _____° above the horizontal.

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

a student attaches a mass to the end of a 0.80 m string. The system will be whirled in a horizontal circular path at 31.5 m/s. The maximum tension the string can withstand without breaking is 250 N. What is the maximum mass the student can use?

*asked on November 1, 2011* -
## Finite Math

Solve the system of linear equations, using the Gauss-Jordan elimination method. (If there is no solution, enter NO SOLUTION. If there are infinitely many solutions involving one parameter, enter the solution using t for the last variable. If the solution

*asked on September 11, 2011* -
## physics

An object is lifted from the surface of a spherical planet to an altitude equal to the radius of the planet. As a result, what happens to the mass and wieght of the object?

*asked on February 10, 2011*