# Posts by Joey

Total # Posts: 538

**Maths **

Solve algebraically: x^2 + y^2 = 18 x - 2y = -3. Thanks.

**Maths**

Prove algebraically that the difference between any two different odd numbers is an even number. Thanks.

**Math**

A woman drove her car on a road running due north at a given rate for 6 hours. She continued her trip on an unsaved road due east for 5 hours at a rate of 4mph slower. Had she been able to go to her destination in a straight line from her starting point and at her original ...

**Geometry **

7. What is the surface area of a conical grain storage tank that has a height of 24 meters and a diameter of 16 meters? Round the answer to the nearest square meter. (1 point) 837 square meters 848 square meters 1,991 square meters 1,923 square meters 8. The lateral area of a ...

**Marh**

the volune if a right circular cylinder is 22 cubic what us the volume in cubic cemimters of a rught cubic cylande with twice the radius and half the height

**American Government**

The question in every case is whether the words used are used in such circumstances and are of such a nature as to create a clear and present danger that they will bring about the substantive evils that Congress has a right to prevent. –Schenck v. United States Use the ...

**American Governent**

1. What type of power does the Constitution grant to the Supreme Court? (1 point) executive power federal power judicial power legislative power 2. Which are examples of judicial restraint in the Supreme Court? Select all that apply. (3 points) The verdict overturns the lower ...

**Math**

Construct a polynomial g(x) with integer coefficents and roots 1, 2/3, and 4i

**Physics**

A wheel rotating initially at an angular velocity of 1.0 rad/s, accelerates over a 10 S interval at a rate of 0.1 rad/s^2. What angular displacement does the wheel undergo in this 10 S interval, in terms of revolutions?

**Physics**

A 1 kg mass attached to a 1 m string is rolled around in a horizontal circular path with an angular velocity of 100 RPM what is the tension of the string? Please show how you got your answer.

**show low high school**

he first number is 3 more than the second number. the sum of the number is 25. find the number.

**Math (Fraction Word Problem)**

You have three-fifths of a pizza leftover, and you plan to eat half of it for lunch. How much of the original pizza do you have left over? If I have 3/5 of a pizza leftover and I plan to eat 1/2 of it for lunch doesn't that mean you have to divide? This is the answer they ...

**Math**

A rectangle, a circle, and a triangle are drawn in a plane. what is the maximum possible number of points of intersection? The sides of the triangle are not collinear with any of the sides of the rectangle.

**Physical**

A motor car travelling at 14m/s on dry flat surface should be able to stop in 14m.Assuming the deceleration to be uniform. Given: its value and the corresponding bracking time is -7m/s^2 , 2 sec Calculate the distance travelled during the first second after the application of ...

**Chemistry**

24.5 g of H2SO4 (98 g/mol) is added with h20 to make up to 800 ml of a solution. If 50 ml of the H2SO4 is added with 100 ml of H20, what will be the molarity of the diluted solution? MaVa=MbVb (0.3125)(50)=(Mb)(100) Mb= 0.16 M No huh?

**math**

5x3=? A 8-- B 2 C 15 D 4

**Math**

Write an equation of the line that passes through (-5,-1) and is parallel to the line y=4x-6

**Finance / Econ**

Sorry, another part I forgot to write (mixed it up with a similar question right by this question): The real MARR (MARR_R) is given to be 6%. What I wrote for the answer choices and my attempt at a solution still apply though.

**Finance / Econ**

***Correction for the "Determine the inflation rate per half year": The question asked for the actual/current MARR per half-year, not the inflation rate.

**Finance / Econ**

A business invests $8,000 into an account that has 5% interest per-year. Annual inflation is 3.5 % over the next 5 years. Determine the inflation rate per half year? I tried doing this: MARR_R = (1+MARR_C)/(1+f) - 1 --> 6% = (1+MARR_C)/(1+3.5%) - 1 --> MARR_C = 9.71 %/yr...

**Science**

idk

**Chemistry**

How many molecules are in 5.2L of carbon dioxide gas?

**math**

1. If AC=60 what is AB ? 2.If AB=9x=17 and BC=4x+27 find the following x=_____ an AC=______ ? 3.If m ∠ABD=20 find the following measurements M∠CBE=____ M∠DBC=_____ M∠ABE=_____ M∠DBE=_______

**mathemarics**

Given the point m(-3,-4) is the midpoint of XY and that X(7,4)answer the following ; A Find the coordinates of Y . B Find the distance between X and Y ?

**geometry**

1.)find the distance between A(-1,1) and b(7,-2) 2.) find the mid poiny of AB

**geometry**

find the distance between A(-1,1) and b(7,-2)

**geometry**

Find the value of x. x = 18x = 22.5x = 30x = 54 is like a like two line almost forming an X and on the left side it says (x+90) and on the right side it says 4x

**geometry**

find the value of each variable. A. x=38, y=76 B. x=52, y=76 C. x=38, y=104 D. x=52, y=104

**geometry**

FIND A POINT E ON CD SUCH AS THE RATIO OF CE TO CD IS 1/4.' ANSWER CHOICE A. -7 B. - 5 C. -3 D. -1

**Math-Calc**

Water is leaking out of an inverted conical tank at a rate of 14000.0 cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height 8 meters and the diameter at the top is 6.5 meters. If the water level is rising at...

**Geometry**

7. What is the surface area of a conical grain storage tank that has a height of 24 meters and a diameter of 16 meters? Round the answer to the nearest square meter. (1 point) 837 square meters 848 square meters 1,991 square meters 1,923 square meters 8. The lateral area of a ...

**Geometry**

Nobody ever got the answer for this ?

**Calculus**

A bucket begins weighing 15 pounds, including the sand it holds. The bucket is to be lifted to the top of a 50 foot tall building by a rope of negligible weight. However, the bucket has a hole in it, and leaks 0.1 pounds of sand each foot it is lifted. Find the work done ...

**Pre Calculus**

A cylinder shaped can needs to be constructed to hold 200 cubic centimeters of soup. The material for the sides of the can costs 0.02 cents per square centimeter. The material for the top and bottom of the can need to be thicker, and costs 0.06 cents per square centimeter. ...

**Pre Calculus**

A piece of cardboard measuring 13 inches by 11 inches is formed into an open-top box by cutting squares with side length x from each corner and folding up the sides. a. Find a formula for the volume of the box in terms of x b. Find the value for x that will maximize the volume...

**Calculus**

A piece of cardboard measuring 13 inches by 11 inches is formed into an open-top box by cutting squares with side length x from each corner and folding up the sides. a. Find a formula for the volume of the box in terms of x b. Find the value for x that will maximize the ...

**math**

gsfjbiubybg875876$\pi\pi\pi$DA BEST.LOLOLOLOLOLOLOLOLOLOLOLOLLOLOLOLOLOLOL.SOP DRAMING 'N START MEMING.GETCHA MONEY rIGHt.poopoop dank tanky faky memes.lololololololololololol.answer is 7458629456875

**Math**

I need help please. 11 1/9% of what number is 900?

**Language**

correct what u just read the question and said correct.

**Algebra**

A ladder is placed against the side of the house. The top of the ladder is 12 ft above the ground. The base wof the ladder is 5feet away from the house. Find the length of the ladde.

**Physic**

ON is the vertical plumb line.A horizontal force F applies at M to push the piston at O and N,with the help of rods MO,MN.The rods MO,MN have the same length,when the distance of ON is 200cm,the distance of M to the plumb line ON is 10cm.Assuming the weight of the piston and ...

**Geography**

Bob Duncan tired turd but

**Chemistry Dimensional analysis**

A cyclist rides at an average speed of 18 miles per hour. if she wants to bike 212km, how long in hours must she ride? What I have so far.. 212km(10^3 miles

**Science**

jerk you didt even answer stupid u just said the question was rght lol

**Math**

20/100x40=8

**language arts**

Analyze how Mrs Watson tries to pit a positive spin on life in the south?

**Health.. NEED HELP ASAP**

thx stacie you are the bomb 4 real.

**Chemistry**

A 0.200 g sample of carbon dioxide, CO2, has a volume of 525 mL and a pressure of 473 mmHg . What is the temperature of the gas in kelvins?

**Math**

The quotient of two proper fractions is less than 1

**Calculus**

The volume V of a growing spherical cell is V =4/3πr^3, where the radius is measured in micrometers (1 µm = 10^−6m). Find the average rate of change of V with respect to r when r changes from 3 to each of the following. i)3 to 6µm ii)3 to 4µm

**physics**

A novice golfer on the green takes three strokes to sink the ball. The successive dis- placements are 7 . 7 m to the north, 1 . 9 m 45 ◦ north of east, and 8 . 7 m 76 ◦ west of south. Starting at the same initial point, an expert (lucky) golfer could make the hole ...

**physics**

Two identical charges, each -8.00 x 10-5 C, are separated by a distance of 25.0 cm. Find the electric force between them?

**Calculus**

Differentiate. g(x) = 5e^x√x

**Vince**

1/wavelength = 1.9678 X 10^7 m^-1 (1/1-1/n^2) 1/9.68 X 10^-8 = 1.09678 X 10^7 m^-1(1-1/n^2) Is this right , how to solve the rest ?

**Vince**

Please show work for Determine the final end (final) value of n in a hydrogen atom transition, if electron starts in n = 1 and the atom absorbs a photon of light with an energy of 2.044 X 10^-18J? thank you very much for your help

**math**

and steve i believe 54 is right

**math**

18 is not correct

**math**

42 is incorrect 294 is the correct answer sorry mat good try tho

**Chemistry**

Noble gases are the least reactive because they have a perfect 8 valence electrons. Or is it because they do not have any unpaired electrons like the rest of the elements.

**Chemistry**

If I were to explain to someone about how to find a charge of an element, would anyone agree with this: The charge of an element is determined by the gain or lose of electrons. Depending on how close they are to the left/right side of the periodic table concludes their charge...

**Chemistry Subatomic particles**

Two actually, for the "Data Supporting Discovery,"when it says data, does it mean I have to include a brief explanation about the experiment from the previous group? And for the calculations, is that the "official" way to calculate them, or is there another...

**Chemistry Subatomic particles**

Fill in the chart (Numbers correspond to each other[I.E 1 in 1st group connects with 1in 2nd]) Subatomic particle found 1.Proton 2.Neutron 3.Electron Scientist 1.Rutherford 2.Chadwick 3.Thomson Experiment 1.Gold Foil Experiment? 2.? 3.Cathode Ray Tube Data Supporting Discovery...

**Chemistry**

How come lead is denser than copper though more copper atoms can fit into a same size cube than lead atoms can?

**chimistry**

The molar heat of fusion of lead (Pb) is 1.140 kcal/mol. How much heat must be added to 97.0 g of solid lead at its melting point in order for it to completely melt? A 1.44 kJ B 10.18 kJ C 12.48 kJ D 25.04 kJ

**math**

v(t) = (5x-75)^2 + 4375 so the lowest value possible for v(t) is 4375 at x=15.

**Chemistry**

What is the pH, pOH, [H+] and [OH-] for a solution that contains 5.25 x 10^-3 moles of HCl dissolved in 3.25 L of water? I was gone the day my teacher explained this and I'm completely lost on what to do. An outline of steps needed to solve the problem would be helpful. ...

**math**

The volume inside a rectangular storage room is 2,025 cubic feet. The room is 9 feet high. Find the area of the floor.

**math**

The area of the base of a rectangular juice box is 4 1/2 square inches. If the volume of the box is 18 cubic inches, how tall is the box?

**Physics**

An object with a net charge of 20 µC is placed in a uniform electric field of 627 N/C, directed vertically. What is the mass of the object if it floats in the electric field?

**Calculus**

The management of the UNICO department store has decided to enclose an 870 ft2 area outside the building for displaying potted plants and flowers. One side will be formed by the external wall of the store, two sides will be constructed of pine boards, and the fourth side will ...

**Physics**

A 4.12 kg mass undergoes an acceleration along both the x and y directions. Ax = -2.60 m/s2 and Ay = 3.50 m/s2. Find the magnitude of the resultant force. Answer in units of N.

**Business Math**

Newcastle auto plc has a current cash flow of 4.4 million and pays no dividends. The Present value of the company ´s future cash flows is 74 million. The company is entirely financed with equity and has 800.000 shares outstanding. Assume the dividend tax is zero. ...

**Corporate Finance**

Newcastle auto plc has a current cash flow of 4.4 million and pays no dividends. The Present value of the company ´s future cash flows is 74 million. The company is entirely financed with equity and has 800.000 shares outstanding. Assume the dividend tax is zero. ...

**math**

jeff has a big scoop of ice cream that is 10 inches tall it melts by 25% in a minute whats the height of the ice cream after one minute

**math**

jeff has a big scoop of ice cream that is 10 inches tall. it melts by 25%in a minute.whats the height of the ice cream after one minute

**Math 120**

Write 4logb(X)-1/3logb(y)+2logb(z)as a single logarithm Its log base b.

**Chem**

The acidic H is almost always attached to an Oxygen Why is that?

**Physics**

Is the answer 1.67

**Physics**

The graph shows the temperature versus time relationship for 2kg of particular substance. The substance is in the solid state at a temperature of 20 degrees Celsius b) If 200 joules of heat is added during the time interval B(20 degrees Celsius) to C(80 degrees Celsius), what ...

**Physics**

The graph shows the temperature versus time relationship for 2 kg of particular substance. The substance is in the solid state at a room temperature of 20 degrees Celsius. - The 100 joules of heat is needed to completely change the substance from a solid to a liquid state, ...

**Science**

a b c d

**Chemistry 400/ Chem 1A**

Assuming that the resolution of an electron microscope is equal to the deBroglie wavelength of the electrons used, what is the resolution of an electron microscope (in nm) when the electrons are accelerated to a speed of (5.60x10^5) m/s?

**Principles of Accounting**

Exercise 5-3 Analyzing and recording merchandise transactions-both buyer and seller LO P1, P2 Santa Fe Company purchased merchandise for resale from Mesa Company with an invoice price of $26,300 and credit terms of 2/10, n/60. The merchandise had cost Mesa $17,937. Santa Fe ...

**NH4NO3 explosive?**

Ammonia is used in its anhydrous form gas and the nitric acid is concentrated. This reaction is violent owing to its high exothermic nature.

**NH4NO3 explosive?**

Yes it is. it is used at mining

**Calculus**

A light is hung 15 ft above a straight horizontal path. If a man 6 ft tall is walking away from the light at the rate of 5 ft/sec, how fast is his shadow lengthening and at what rate is the tip of the man’s shadow moving?

**Chem 400**

Direct reaction of solid iodine (I2) and gaseous chlorine (Cl2) produces an iodine chloride,(IxCly), a bright yellow solid. 0.678 g of iodine (I2) is mixed with 0.851 g of chlorine (Cl2). After the elements react, some chlorine is left over along with a single compound that ...

**Chemistry**

M1V1=M2V2 so 0.1 M x 1.5 L= 2.52 x ?L ?L of 2.52 M stock solution= 0.05 L To find out how much water you need to add just subtract 1.5 L of original solution from 0.05 L. so 1.5 L - .05 L = amount of water in L then just convert you answers to mL.

**Chem 400**

What about microliter conversion to ml?

**Chem 400**

A 55 uL of hexane is injected in a mass spectrometer. how many protons are in the 55 uL injection? (density Hexane= 0.6548 g/mL)

**Chemistry**

Yeh its 14.9 lb/in^2

**Chemistry**

Assume that the width of your body (across your shoulders) is 50.8 cm inches and the depth of your body (chest to back) is 25.0 cm. If the atmospheric pressure is 14.9lb/in^2, what mass of air (lb) does your body support when you are in an upright position?

**Science! Help**

thx guyz

**Chemistry 400/ Chem 1A**

I got 4.854 g of H2SO4. Thank you so much. I did it right the first time just has trouble understanding the problem in my head. To find grams of excess reactant I just have to convert moles of ethanol to g right?

**Chemistry 400/ Chem 1A**

A chemist mixes 5.216 g of potassium permanganate, 2.318 g of ethanol, and excess sulfuric acid. These chemicals react as follows: 4 KMnO4 + 5 C2H5OH + 6 H2SO4 ---> 4 MnSO4 + 5 CH3COOH + 2 K2SO4 + 11 H20 What mass of sulfuric acid is consumed in this reaction, assuming that...

**physics, math**

Part A & B are 0.10m apart. A point charge of +3.0*10^-9C is placed at A and a point charge of +1.0*10^-9C is placed at B. X is a point on the straight line through A and B. If a third charge C or charge 1.5*10^-9 is placed at X, where must X be for the resultant force to be ...

**algebra**

1. x=Y/2+3 2. y= -y/2 - 1/3

**Math Question**

Five students measure their height using different units. Andrew is 176 cm, Brittney is 5'4", Calvin is 1.8 yards, Don is 54 inches, and Elisha is 1.6 metres. Arrange the students from shortest to tallest. I don't know how to deal with different units! A truck ...

**science**

A force of 20 n gives a ball an acceleration of 4.0 m/s3 on a lever frictionless surface. what is the mass of the ball?

**Physics**

A 250g wood block firmly attached to a horizontal spring slides along a table with a coefficient of friction of 0.40. A force of 30.N compresses the spring 20cm. If the spring is released from this position what will be the block's speed when it passes equilibrium position?