Thursday
December 8, 2016

Posts by Chris

Total # Posts: 2,662

Math
A bag contains 9 red marbles, 8 white marbles, and 6 blue marbles. You draw 4 marbles out at random, without replacement. What is the probability that all the marbles are red? 1 The probability that all the marbles are red is...? 2 What is the probability that exactly two of ...
November 10, 2015

5th grade math
12/3+1/6 =24+1/6 =25/6
November 9, 2015

math
I'm having trouble setting this one up. The one I'm trying to figure out how to lay out in an equation is Roberto invested some money at 7%, and then invested $5000 more than twice this amount at 9%. His total annual income from the two investments was $3700. How much ...
November 9, 2015

physics
A force is applied to a 2.9 kg mass and produces 2.7 m/s 2 acceleration. What acceleration would be produced by the same force applied to a 6.2 kg mass? Answer in units of m/s 2 .
November 8, 2015

Math
were there parenthesis involved in this question?
November 5, 2015

Math
$3.47
November 5, 2015

Chemistry
How many grams of ethanol, C2H5OH, can be boiled with 343.0 kJ of heat energy? The molar heat of vaporization of ethanol is 38.6 kJ/mol I'm not sure how I am supposed to set this problem up. Can someone help me, please?
November 5, 2015

math
the 5 ends up in the ones place (5.781203)
November 5, 2015

Math
6x2,6x20,and 6x200
November 2, 2015

mars hill. Math
how do I find the volume of a rectangular box that has a base of 50 in.² and the height of 12 inches
October 29, 2015

physics
a truck beneath an airplane that is moving 180 km/h at an angle of 47 to the ground. How fast must the truck travelto stay beneath the airplane? Answer in units of km/h.
October 28, 2015

math
y= 3x+ 9
October 28, 2015

Federal polytechnic, oko
What force would be required to accelerate an electron mass of 0.009kg from rest to a velocity of 104m/s in 10 seconds.
October 27, 2015

Physics
A tightrope walker wonders if her rope is safe. Her mass is 60 kg and the length of the rope is about 20 m. The rope will break if its tension exceeds 7500 N. What is the smallest angle at which the rope can bend up from the horizontal on either side of her to avoid breaking? ...
October 26, 2015

Math
It has four side and all opposite side are parallel and has no right angles
October 26, 2015

BUSINESS MATH
8 is what percent of 69? (Round to the nearest hundredth percent as needed.
October 23, 2015

Language Arts
@Ms.Sue can you help me with number 3
October 23, 2015

Language Arts
Thanks
October 23, 2015

Language Arts
@Ms.Sue
October 23, 2015

Language Arts
2. Which of the following best describes the effect of beginning "Always to remember" with a description of the memorial competition? A. this technique keeps the essay from being autobiography or fiction. B. this tactic gives background for the importance of lin'...
October 23, 2015

S.S
Thanks Ms.Sue (:
October 23, 2015

S.S
Which of the following would describe how loyalists land was redistributed in Georgia? A. land was given to the indians who helped the patriots. B. land was given in bounty grants to soldiers for their advice. C. a lottery was held to grant land. D. land was confiscated to ...
October 23, 2015

Chemistry
a) CuO(s) + C(s) => Cu(s) + CO(g) b) 2 NaOH (conc) + Pb(CH3COO)2(aq) = Pb(OH)2(s) + 2 C2H3NaO2(l)
October 23, 2015

Algebra
What is a Square with p q AR
October 22, 2015

math
Peter sold watches ($7) and necklaces ($4) at a flea market. Total sales were $300. People bought 3 times as many watches as necklaces. How many of each did Peter sell? What were the total dollar sales of each?
October 21, 2015

chemistry
Calculate the volume, in milliliters, of a 0.290 M LiOH solution that will completely neutralize each of the following: a. 40.0 mL of a 0.130 M H3PO4 solution b. 24.5 mL of a 0.535 M H2SO4 solution
October 20, 2015

Math
Of rug has a length that is two times its width. The area of the rug is 8 square feet. What is the length And width of the rug?
October 20, 2015

Civics
You begin traveling south from Madison,Wisconsin.Which of the following capital cities would you reach first.
October 19, 2015

forensic science
if handwriting evidence was not yet considered to be considered to be scientific evidence at the time of united states v. starzecypzel,how was it admissible as reliable evidence
October 11, 2015

Finance/370
How do i deteremine the internal rate of return of a problem. Lets say a company is justt starting and they need an initial outlay of $105,000 and will generate a net cash inflows of 19,000 per year for 9 years. A) If the discount rate is 8 % then what is the NPR? (I ...
October 11, 2015

chemistry
What is the mass of a liquid that has q volume of 2.5L and a density of 3g/cm cubbed? I got 7.5, but I am unsure if I should have converted L to mL
September 23, 2015

Physics
You shoot an arrow straight ahead; it leaves your bow moving parallel to the ground. You find it embedded in the ground 50m away from where you shot it. It makes an 82 degree angle with the level ground , reflecting the direction it was traveling at the time it hit. How fast ...
September 21, 2015

Lifespan Development
What are some theories, models, and constructs that might influence my perspective on facilitating a counseling session/encounter.
September 20, 2015

english
Most of the time, the ____ struggles against the main character in a story. A) protagonist B) antagonist C) flat character D) round character
September 18, 2015

Math
are you ok
September 16, 2015

calculus ab
Use a graphing utility to graph the function and visually estimate the linits h(x)= -x^2 + 4x
September 11, 2015

Physics
A small turtle moves at a speed of 186 furlongs per fortnight. Find the speed of the turtle in centimeters per second. Note: 1 furlong = 220 yards, 1 yard = .9144 meters, and 1 fortnight = 14 days.
September 8, 2015

history
Power of pope over church
September 7, 2015

english
which are state-of-being verbs in following sentences: "While he was biking this morning, Zach had seen a small accident. A huge SUV ran a red light, and the oncoming sedan was unable to stop. Driving on Portland’s narrow streets was dangerous and expensive. The ...
September 1, 2015

L.O.
Bad road use has a direct impact on the emotional
August 20, 2015

L.O.
What are the bad road use on the physical community?
August 20, 2015

MLA citation
my test results said D was wrong
July 28, 2015

Chemistry
So my answer should be something around: When writing the name of an ionic compound containing a cation with more than one oxidation state, use the cation name and write the charge of the cation in roman numerals. For example, when writing out FeSO4, it would come out as iron...
July 7, 2015

Chemistry
Explain the basic format and the steps needed to name an ionic compound composed of a cation that has a possibility of existing in more than one oxidation state. Is this right: There are four prefixes used when naming ionic compounds: per__ate, -ate, -ite, and hypo__ite. ...
July 7, 2015

Business
10 to 20 answer please
June 24, 2015

fundamentals of law for health information
what risks does the hospital assume when it takes a case to trial?
June 11, 2015

math
A textbook search committee is considering 20 books for possible adoption. The committee has decided to select 5 of the 20 for future consideration. In how many ways can it do so?
May 30, 2015

math
what is 3.4 as a whole number?
May 18, 2015

math
i had a quiz and that answer wasn't one of them the question was if ryan ran 3.4 miles in 30 minutes at the gym. if he goes to the gym each day for a week and runs the same distance each time how many miles will ryan have run?? the only multiple choice is 23.4 34 3.41
May 18, 2015

math
thats what i did but it is wrong i got 23.8
May 18, 2015

math
if a kid ran 3.4 miles in 30 minutes at the gym and he goes everyday for a week at the same distance how many miles will he have run?
May 18, 2015

Chem
Consider the reaction: A(g)⇌2B(g) Find the equilibrium partial pressures of A and B for each of the different values of Kp. Assume that the initial partial pressure of B in each case is 1.0 atm and that the initial partial pressure of A is 0.0 atm. Make any appropriate ...
May 15, 2015

Chemistry
From your Dilution Data in the procedure 3 and 4, calculate the initial concentration of Fe3+ (aq) ion for tubes 2-5. 1. Add 5.00ml of 1.00 x10^-3 M KSCN to all tubes. 2. To test tube 1 add 5 ml of 0.200M Fe(NO3)3. 3. Measure 8.00ml of 0.200M Fe(NO3)3 into 25.0ml cylinder. ...
May 13, 2015

Physics
If the current in a wire of a CD player is 1.10 mA, how long would it take for 3.40 C of charge to pass a point in this wire?physi
April 30, 2015

Physics
Two electrostatic point charges of +60.0 μC and +57.0 μC exert a repulsive force on each other of 161 N. What is the distance between the two charges? The value of the Coulomb constant is 8.98755 × 109 N · m2/C2. Answer in units of m.
April 30, 2015

5th grade math
Jeff put small box that is 12 inches long, 8 inches wide, and 4 inches tall inside a box that's 20 inches long, 15 inches wide, and 9 inches high. How much space is left in the larger box?
April 30, 2015

Physics
An X-ray tube used for cancer therapy oper- ates at 8.8 MV with a beam current of 19 mA striking a metal target. Calculate the power of this beam.
April 30, 2015

Physics
A net charge of 73 mC passes through the cross-sectional area of a wire in 9 s . What is the current in the wire? The fun- damental charge is 1.602 × 10−19 C.
April 30, 2015

Calculus
Find the area of the largest rectangle that fits inside a semicircle of radius 10 (one side of the rectangle is along the diameter of the semicircle).
April 28, 2015

Analytical Chemistry
DrBob222, thank you for the help!
April 27, 2015

Analytical Chemistry
Any help/advice on answering this question would be a big help! :) The analysis of lead (Pb) in a sample of solder was carried out using atomic absorption spectroscopy as follows. 1.013 g of solder was completely dissolved in a small volume of nitric acid and the solution made...
April 27, 2015

MATH
Abby, Betty, Cassie, and Dale need to cross the river on a boat. The boat only fits at most two people. If two people go over one must bring it back for the others. Abby takes 1 min., Betty 2 min., Cassie takes 5 min., and Dale takes 10 min.. The time it takes is based on the ...
April 27, 2015

physics
A body oscillates with simple harmonic motion along the x axis. Its displacement varies with time according to the equation x =5sin πt + π 3( ). The velocity of the body at t = 1.0 s is (-8 m sec )
April 25, 2015

physics
If the current in a wire of a CD player is 1.10 mA, how long would it take for 3.40 C of charge to pass a point in this wire?
April 24, 2015

physics
A net charge of 73 mC passes through the cross-sectional area of a wire in 9 s. What is the current in the wire? The fundamental charge is 1.602 × 10−19 C.
April 24, 2015

math
suppose maya made another sign with an area of 48 square inches. would this sign be larger or smaller than the sign with an area of 48 square centimeters? explain how you know
April 22, 2015

physics
A balloon rubbed against denim gains a charge of −5.0 µC. What is the electric force between the balloon and the denim when the two are separated by a distance of 3.0 cm? (Assume that the charges are located at a point.) The value of the Coulomb constant is 8.98755...
April 22, 2015

Maths
Thank you!!
April 18, 2015

Maths
find the nth term and write an equation to express 4,36,100,196,324 so far I've got 32(n-1) + 4 but it only works for the first two . . .
April 18, 2015

Chemistry
Isn't this less than the original concentrations?
April 16, 2015

Chemistry
If you mix 20.0mL of a 3.0M solution with 30mL of a 5.00M solution, determine the concentration in molarity of the new solution.
April 16, 2015

L.A
Wow that's sad you just told Dawn that you guys are stupid
April 15, 2015

maths grade 11
Tan (x-10 degrees)+1=3
April 10, 2015

maths grade 22
Tan (x-10 degrees)+1=3
April 10, 2015

8th grade math
Company A charges $25.00 for up to 100 minutes, plus $0.50 for each extra minute. Company B charges $50.00 for an unlimited number for minutes. What are the equations for each company?
April 9, 2015

PHYSICS HELP PLEASE!!
A tangential force acts on the rim of a 2.0 kilogram disk-shaped wheel (0.50 m radius) and gives the wheel an angular acceleration of 4.8 rad/s^2. Neglect friction and find the magnitude of the force
April 5, 2015

Physics
A tangential force acts on the rim of a 2.0 kilogram disk-shaped wheel (0.50 m radius) and gives the wheel an angular acceleration of 4.8 rad/s^2. Neglect friction and find the magnitude of the force
April 4, 2015

Spanish
That was my second option, so getting the same answer from another perspective is good to know I'm on the right track.
March 25, 2015

Spanish
My answer was Monument, and i don't have any choices because the paper is like a worksheet, and doesn't have any vocabulary words. The worksheet is similar to a crossword puzzle.
March 25, 2015

Spanish
What is a name of a place that can be associated with the things below: 1. La historia, el arte: _____________
March 25, 2015

Physics
PE = (1/2)kx^2 (46.5) = (1/2)(455)(x)^2 x = 0.452 meters
March 24, 2015

physics
A coin with a diameter of 1.37 cm is dropped on its edge onto a horizontal surface. It starts rolling with an initial angular speed of 10.5 rad/s and rolls in a straight line without slipping. If the rotation slows with an angular deceleration of 2.34 rad/s 2 , how far does ...
March 24, 2015

Physics
Los Angeles (32 degrees North, 119degrees West) and Atlanta (33 degrees North, 84 degrees West) are approximately at the same latitude but not longitude. If a crow were to fly between the two cities what is the approximate shortest flight distance in kilometers?
March 24, 2015

Help with Psychology Homework
Your professor asks you to take a personality test. After taking the test, you read your description of your personality type, and are disappointed that the results do not seem to capture your personality at all. In fact, you think the test probably measures attitudes rather ...
March 24, 2015

L.A
I think it is C...
March 24, 2015

Math check
1.c 2.b 3.d 4.a 5.c Just took this test and I got a 5/5..
March 21, 2015

trig
A gear with a radius of 32 centimeters is turning at pi/9 radians/sec. What is the linear speed (velocity) at a point on the outer edge of the gear?
March 15, 2015

statistics
The mean (μ) of the scale is 83 and the standard deviation (σ) is 10. Assuming that the scores are normally distributed, what is the PROBABILITY that a score falls below 72?
March 12, 2015

health
I DO ONLINE SCHOOL WHAT ABOUT U FGT (For Gotten Teacher) Or it could be FT (Forgotten Teacher)
March 10, 2015

physics
What design aspects of the snowmobile make it particulary useful for travel over ice and snow?
March 10, 2015

Art last question for today.
Yeah it's b lol
March 9, 2015

Art last question for today.
@biths what do you think?
March 9, 2015

chemistry
2.56 grams of zinc react with excess phosphoric acid to produce how many molecules of hydrogen gas?
March 8, 2015

Art
All of them are correct...
March 4, 2015

physics
a parent pushes a kid on a swing, A) If the child on the swing rises 2m above the lowest point during each cycle, what is her speed at the lowest point of the swing? B)If the beginning of a cycle (2m above the lowest point) the child is given a push so that her starting speed ...
March 4, 2015

Physics
A 39-turn circular coil of radius 3.20 cm and resistance 1.00 Ω is placed in a magnetic field directed perpendicular to the plane of the coil. The magnitude of the magnetic field varies in time according to the expression B = 0.010 0t + 0.040 0t2, where B is in teslas and...
March 3, 2015

Physics
A 24.8-g bullet is fired from a rifle. It takes 2.15 × 10-3 s for the bullet to travel the length of the barrel, and it exits the barrel with a speed of 778 m/s. Assuming that the acceleration of the bullet is constant, find the average net force exerted on the bullet.
March 1, 2015

Physics
The brakes of a truck cause it to slow down by applying a retarding force of 7760 N to the truck over a distance of 870 m. What is the work done by this force on the truck?
March 1, 2015

tablun elementary school
There is no way to solve this with this information.
March 1, 2015

Physics
Power is Work/Time, or Force*Distance/Time. You have a velocity, which is Distance over time, so you need to find the force that the winch needs to pull the block upwards. That force is the frictional force (coefficient of friction* normal force) + the force of gravity down ...
February 28, 2015

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