Total # Posts: 160

Math
5,4,10,9,15,14,20

Math
___________ARMY(A)_NAVY(N)_TOTAL Football(F)_30________8_____38 Boxing(B)___55 _______7____ 62 TOTALS______85_______15_____100

Math
The following table shows the distribution of Army and Navy personnel who like football and Boxing. ARMY(A) NAVY(N) TOTAL Football(F) 30 8 38 Boxing(B) 55 7 62 TOTALS 85 15 100 Use the table to determine the following probabilities: a) P(A | F) b) P(F | A) c) P(N | B) d) P(B...

Chemistry
A solution is 25% by mass calcium nitrate and has a density of 1.21 g/mL what is the molarity?

math
The answer's -27. Ms. Sue seems to have forgotten to take away \$11.

Math
My name is awesom

Trigonometry
Find the length of the shadow of a 50 ft vertical pole when the angle of elevation of the sun is 28 degrees

Earth Science
Yes, This is correct

Physics: Static Equilibrium
Consider the 667 N weight held by two cables shown below. The left-hand cable had tension 890 N and makes an angle of è with the wall. The right-hand cable had tension 960 N and makes an angle of è1 with the ceiling. a) What is the angle è1 which the right...

Physics: Static Equilibrium
Consider the 667 N weight held by two cables shown below. The left-hand cable had tension 890 N and makes an angle of è with the wall. The right-hand cable had tension 960 N and makes an angle of è1 with the ceiling. a) What is the angle è1 which the right...

math
l want to be smarter

Physics: Static Equilibrium
Consider the 667 N weight held by two cables shown below. The left-hand cable had tension 890 N and makes an angle of è with the wall. The right-hand cable had tension 960 N and makes an angle of è1 with the ceiling. a) What is the angle è1 which the right...

Physics: Static Equilibrium
Consider the 667 N weight held by two cables shown below. The left-hand cable had tension 890 N and makes an angle of è with the wall. The right-hand cable had tension 960 N and makes an angle of è1 with the ceiling. a) What is the angle è1 which the ...

Physics: Static Equilibrium
Consider the 667 N weight held by two cables shown below. The left-hand cable had tension 890 N and makes an angle of è with the wall. The right-hand cable had tension 960 N and makes an angle of è1 with the ceiling. a) What is the angle è1 which the right...

Physics: Static Equilibrium
Consider the 667 N weight held by two cables shown below. The left-hand cable had tension 890 N and makes an angle of θ with the wall. The right-hand cable had tension 960 N and makes an angle of θ1 with the ceiling. a) What is the angle θ1 which the right- hand...

Physics
Consider the 667 N weight held by two cables shown below. The left-hand cable had tension 890 N and makes an angle of θ with the wall. The right-hand cable had tension 960 N and makes an angle of θ1 with the ceiling. a) What is the angle θ1 which the right- hand...

math
what is the equation of the line in slope-intercept form or x=c with the given formation. Slope is in the lowest term as an integer or fraction (not decimal, not still divided by 1). What is substituted in as it is solved? Through (2,15), parallel to y=5x-4

Physics
Baseball player A bunts the ball by hitting it in such a way that it acquires an initial velocity of 2.0 m/s parallel to the ground. Upon contact with the bat the ball is 1.0 m above the ground. Player B wishes to duplicate this bunt, in so far as he also wants to give the ...

Physics
A horizontal rifle is fired at a bull's-eye. The muzzle speed of the bullet is 640 m/s. The gun is pointed directly at the center of the bull's-eye, but the bullet strikes the target 0.028 m below the center. What is the horizontal distance between the end of the rifle...

Physics
A tennis ball is struck and departs from the racket horizontally with a speed of 28.6 m/s. The ball hits the court at a horizontal distance of 18.4 m from the racket. How far above the court is the tennis ball when it leaves the racket?

History
Which of these BEST describes the Supreme Court case of Brown v. Topeka Board of Education? A) it reaffirmed the decision of Plessy vs Ferguson B) ruled that universities must be open to people of all races C) Kansas schools were to be desegregated as an experiment for racial ...

History
"A ship lost at sea for many days suddenly sighted a friendly vessel. From the mast of the unfortunate vessel was seen a signal, “Water, water; we die of thirst!” The answer from the friendly vessel at once came back, “Cast down your bucket where you are.&#...

Math
Mr Jenkins distributed 30 fliers out of 40 fliers. What percent of the total amount of fliers did he distributed

Pre-Calculus
If h(x)=x^3, what is the difference between h(x) reflected about the x-axis and h(x) reflected about the y-axis?

chemistry
nevermind, got it!

chemistry
The pressure of a gas sample in a rigid container is 810.0 mmHg at 22 oC. What is the pressure, in mmHg, at 50 oC? I have a rough idea on how to solve, but which equation do I use?

chemistry
Suppose a gas sample has a density of 3.68 g/L at STP. What is its density at 25 oC and 19.0 atm?

chemistry
Suppose a gas sample occupies 14.9 L at STP. What is its volume at 400 K and 0.87 atm? which equation would you use for this?

chemistry
A mixture of 94.6g of O2 and 82.2g of Ne is placed in a 200.0L container at 250K . What is the partial pressure of O2 in atmospheres?

chem
How do you find the total number of σ and π for CHOCl?

chemistry
How do you find the total number of σ and π bonds in a molecule? Is there an equation?

chem
Given these two reactions, how do I calculate ΔH for the third one? P4(s) + 6 Cl2(g) -> 4 PCl3(g) ΔH= -1148 kJ P4(s) + 10 Cl2(g) -> 4 PCl5(g) ΔH = -1500 kJ PCl3(g) + Cl2(g) -> PCl5(g) ΔH = ?

math
what is decimal

Pre-Calculus
Prove the identity: cos(x-π/2)=sin x

Science, Physics
A 800kg safe is 2.3m above a heavy-duty spring when the rope holding the safe breaks. The safe hits the spring and compresses it 52cm.What is the spring constant of the spring?

math
time = (distance-13)/-.125 ex. (8 + -13)/-.125 = 40 (6 + -13)/-.125 = 56

Pre-Calculus
Factor the polynomial completely, and find all its zeros. State the multiplicity of each zero P(x)= x^3-x^2+x

math
16/2

math
Evaluate for each expression m = 2/5 and n = 1/2 1) 2m + n 2) 2m - n Please explain so I can understand the rest of the questions.

math
The grade 8 class at Wheatly Middle School sold 77 boxes of almond chocolates. This is 22% of all the boxes of chocolate sold. a) Estimate the total number of boxes sold. b) Calculate how many boxes were sold.

MATH WORD PROBLEM
Need help on b

ss --- check my work!!!

finance
3.The Lo Company earned \$2.60 per share and paid a dividend of \$1.30 per share in the year that just ended. Earning and dividend per share are expected to grow at a rate of 5% per year in the future. Determine the value of the stock:

math
contract the expression,use the property of logarithms to write each expression as a single logarithm with a coefficient of 1

finance
accident!

ag
which of the following determines who holds the position of speaker of the house? a the president b the house c the senate d the joint houses of congress

CHEMISTRY
An ethanol-water solution is prepared by dissolving 10.00 ml ethanol C2H5OH (density=0.789g/ml) in sufficient water to produce 100.00 ml of solution with a density of 0.982g/ml. What is the concentration of ethanol in this solution? Expressed as ml. a.)%volume b.)%mass c.)%m/v...

english
how to write solving problems scene of three characters which started with prologue

Math

Math

physical mod
What mass (in grams) of steam at 100°C must be mixed with 462 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 40.0°C? The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg, and the latent ...

math
how to factorise?

physical pharmacy
Hoy does KH2PO4 induce controlled flocculation..?

chemistry
no one knows?

chemistry
A solution contains 25.5 g of NaCl dissolved in sufficient water to give a total mass of 325.0 g. What is the molality of the solution

chemistry
A solution of ethanol, C2H5OH, is prepared by dissolving 25.0 mL of ethanol in enough water to give a total volume of 250.0 mL. What is the percent-by-volume concentration of ethanol?

Trigonometry
wheels on a skateboard are 3.63 inches. If the skateboarder is travelling down a hill at 23 miles per hour what is the angular velocity.

Chemistry
.0819

Phtsics
Two identical point charges are separated by a distance of 3.0 cm and they repel each other with a force of 4 X 10^-5 N. What is the new force if the distance between the point charges is doubled?

Language art
I am new to this also.

Physics
The height of a rocket is launched from a platform 12 meters above the ground is modeled by the function h(t)=-4.9t^2+25t+12 where h(t) represents the height of the rocket in meters and t represents the number of seconds after launching. How many seconds after launching will ...

Physics
The height of a rocket is launched from a platform 12 meters above the ground is modeled by the function h(t)=-4.9t^2+25t+12 where h(t) represents the height of the rocket in meters and t represents the number of seconds after launching. How many seconds after launching will ...

Physics
The height of a rocket is launched from a platform 12 meters above the ground is modeled by the function h(t)=-4.9t^2+25t+12 where h(t) represents the height of the rocket in meters and t represents the number of seconds after launching. How many seconds after launching will ...

Physics
The height of a rocket is launched from a platform 12 meters above the ground is modeled by the function h(t)=-4.9t^2+25t+12 where h(t) represents the height of the rocket in meters and t represents the number of seconds after launching. How many seconds after launching will ...

math
btw that's for you ms.sue

math
i told some of my classmates about this site and they said it really help but they also added that you all shall show examples when you are finished and an explanation and then give the person a sum similar to that.

Finance
On July 1, 2011, Jackson Company exercises a \$5,000 call option (plus par value) on its outstanding bonds that have a carrying value of \$208,000 and par value of \$200,000. The company exercises the call option after the semiannual interest is paid on June 30, 2011. Record the ...

math
I NEED HELP

math
I LEARNT SOMETHING

math
HOW YOU DO THAT?

Chemistry
0.3 grams NaOH dissolved in 2.5litres. How many moles?

english
help me in direct and indirect

math
how do you do this table? (gx2)-3 ?

Math
5,4,10,9,14,20,19,25,24

Physics
A mass of m1 = 6.00 kg is sitting on an inclined plane, which meets the horizantal at an angle of 22.0, which has a coefficient of sliding friction of 0.290, which is 3.50 m = L. a string is attached to m1, it is strung over a pulley, and attached to mass m2 = 7.0kg which is ...

english
Identify the appositive or complete appositive phrase. Sam, our cat, is too lazy to catch mice.

Ms.Susu's math
someone tell me what website to go on and find x+z-h=___

physics

world history
idk look it up on google com then find it is youu a girl (chicka) or a boy {chicko}

science
In science wwhy is that when they say what is the meaning of friction?

Math
Slope intercept form.

math
3/4

Math
Perform the indicated operations and simplify: i^-31

Math
divide the left and right side of the equation by ð r^2 V / (ð r ^2) = h ?

Math
im not sure how to solve this problem at all

Math
no

Math
C B D?

Math
A rectangular prism has a length of 100 cm, a height of 10 cm and a width of 5 cm. What is the volume of the rectangular prism? A. 3100 square centimeters B. 1550 square centimeters C. 5000 square centimeters D. 1200 square centimeters 2. A cylinder has a diameter of 5 meters ...

chemistry
1. Which of these chemical formulasCl2, KCl, Ar, or NO2represents both an element and a molecule? 2. A miner finds a small mineral fragment with a volume of 5.74 cm3 and a mass of 14.4 g. What is the density of that mineral fragment?

Chemistry
thank you !

Chemistry
Pentane gas (C5H12) combusts with oxygen gas (O2) to form water (H2O) and carbon dioxide (CO2). Write a balanced chemical equation for this reaction and explain the scientific principle (statement) that requires the balancing of an equation to make it conform to reality.

chemistry
Explain in one or two sentences how new evidence affects scientific models

chemistry
Use the balanced equation below to answer the following questions. 2Al(NO3)3 + 3Na2CO3 Al2(CO3)3(s) + 6NaNO3 - What is the ratio of moles of Al(NO3)3 to moles Na2CO3? (1 point) - If 852.04 g Al(NO3)3 reacted with the 741.93 g Na2CO3, which would be the limiting reagent? Show ...

chemistry
Use the following steps to balance the redox reaction below: Mg + Au+ Mg2+ + Au -Write the oxidation and reduction half-reactions. Make sure each half-reaction is balanced for number of atoms and charge. -Multiply each half-reaction by the correct number, in order to balance ...

Chemistry
A stock solution is prepared by adding 20mL of 0.2M MgF2 to enough water to make 80mL. What is the F– concentration of 20 mL of the stock solution?

biology
if offspring exhibit a 3:1 phenotype ratio, what are the genotypes of the parents?

latin
what latin word is the phrase strong distaste derived rom

English
Please help me errors in my paper so I can correct them. The Lottery takes place on a beautiful summer day in a small town. Although the location of the town, is never given, it appears to be in a rural community. The story begin as a regural summer day, but has a surising ...

English
The Lottery takes place on a beautiful summer day in a small town. Although the location of the town, is never given, it appears to be in a rural community. The story begin as a regural summer day, but has a surising ending. In the short story "The Lottery" by ...

English
Please check for any errors in my paper. And crrect the errors for me. Let me know if there is anything I need to change. The Lottery takes place on a beautiful summer day in a small day in a small town.However, the the location of the town, is never given, it appears to be in...

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