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Posts by Nicholas

Total # Posts: 154

Maths
Ben gives 1/3 of his annual savings to charity he spends 3/5 of the rest on domestic bills. 1. What fraction of his savings does he spend altogether 2. Find the fraction of his savings left.

Physic
you have to push with a force of 200N to slide a refrigerator across a floor at constant velocity.What is the force of friction acting on the fridge?

math
Sebastian rides his bike 2,000 meters in five minutes. How many meters does he bike in 1 minute

word problem
Tamika is helping her father make shelves measuring 12x16" how many can be cut from a 48x72" piece of plywood so there is no waste?

english
Lmao, this person again

Physics
Two trains approach each other at a railroad crossing. Train 1 travels 80 km/h and Train 2 travels 50 km/h. They both sound their horns before passing each other, emitting sound waves at 300 Hz. The speed of sound is 343 m/s. At what frequencies does a person waiting at the ...

Physics
total mass = m1+m2 = 3 down force on m1 = 9.8 (m1.g) fric force on m2 = 2*9.8/4 = 9.8/2 (m2.g.mk, cuz mk = 0.25 = 1/4) net force = 9.8 - 9.8/2 = 9.8/2 a = net force/total mass = 9.8/2/3 = 1.6 :)

science
weight = mass * gravitational field strength. weight depends on location, mass does not. mass on mars IS THE SAME AS mass on Earth

Science
car: velocity = 20/2 m/s = 10 m/s momentum = mass * velocity = 3000*10 kg x m/s player: mass = momentum/velocity = 1120/10 = 112 kg.

chemistry
a graduated cylinder containing 75.0 mL of water has a mass of 149.86 g. A piece of metal is added to the cylinder and the volume of the water changes to 86.3 mL. The mass of the graduated cylinder, water and metal rises to 218.90 g.

Economics
1000 + 0.75*50,000 = ... Your answer is wrong! Use a calculator or a spreadsheet if you can't do it by hand!!!

English,sepedi,agriculture,physical sciences,lifesciences,maths & life orientation
Please can you help about my research project?i need your help.

English
3 is c

English
100% correct

math
5000

Math
You do 45 divided by 9 to get 5 which is denominator of 3/5, and then 9 x 3=27.

English
Black mans speaking LOL Answer is C

chemistry
How many grams of bismuth (III) chloride can be produced from 575 mL of chlorine gas at STP when reacting with excess bismuth metal?

Technical writing
LOL....

English
Got it wrong by choosing B. What a pain.

English
Reed, how annoying. Wish it'd be as simple as C. I will be selecting B and will be confirming if this is the correct answer with a follow up message soon.

ENGLISH
Confirmed B is correct.

Algebra
9!-6!/ (9-3)!

Physics
A 6.08 kg box sits on a ramp that is inclined at 37.4 ∘ above the horizontal. The coefficient of kinetic friction between the box and the ramp is 0.30. What horizontal force is required to move the box up the incline with a constant acceleration of 4.30 m/s2 ?

Mathematics , business studies , economics , geography
human resoure management

English
I'll be the sacrifice and choose C then. I will report back tomorrow to let you all know if I got the question wrong.

English
C. Parson Brown said we’re all our brothers keepers.

English
A. Parentheticals aren’t crucial to the meaning of a sentence.

Science
An elevator lifts 5 passengers 30 meters in 24 seconds. The power is 15,000w. What is the total weight of the elevator and passengers?

English
A is wrong. I don't care for the right answer anymore.

English
I have this question as well. I'll provide the answer after I take the test. If B and D are incorrect according to Ms. Sue, and Commas is wrong according to Atlay's teacher. That leaves only A, dashes. I'll follow up tomorrow.

english
A is the correct answer.

geography
what is the term for "products of the human imagination that please and entertain us and teach a cultures values"

Mathematics
here's what i have so far but i think it's wrong: s/d+e = 7.0 s=7d +7e n/e = .80 n= .80e .80e/(7d + 7e) if that's even correct, i do not know. but if it is, then i get confused because i know d + e = a, but i don't know what to do with the 7s in front of d and ...

Mathematics
Assume that S/A = 7.0, D/A = .40, N/E = .80 and A = D + E. Solve for N/S. I'm lost. Does anyone have any tips? Thank you.

Algebra 2
Simplify the Expression. 2m^2 - 5n^2 + 6n^2 - 8m

ethics and moral reasoning
Robinson describes magnanimity as the mean between the extremes of

accounting
C

English
The answer is C.

English
C is correct.

English
Confirmed A to be correct.

English
The answer is C, for chrissake.

English
Confirmed D to be correct.

English
Confirmed D to be true.

English
Confirmed B to be the right answer.

English
A is correct.

English
Confirmed B to be the WRONG answer.

English
Got this one wrong as well. What a drag.

Chem
Please help how to set up How many grams of CuSO4 * 5H2O are needed to prepare 100.ml of a 0.10 M solution?

English
Confirmed the answer is C.

English
Question left open, I have selected C. I'll keep Jishka updated if this was correct or not.

English
Confirmed the answer is A.

English
Confirmed the answer is B.

English
Ms. Sue You're such a savior. Thank you. By the way. The answer is A.

English
Had a good laugh at that one Ms. Sue, Confirmed the answer is A.

chemistry
8.22 g of CuNO3 is dissolved in water to make a 0.590M solution,what is the volume of the solution

English - help Poe
AAC IS CORRECT

Math
We the people of the United States in order to form a more perfect union establish justice insure domestic tranquility provide for the common defense promote the general welfare and secure the blessings of liberty to ourselves and our posterity do ordain and establish this ...

algebraI
192

ap physics
A spherical comet of mass m and diameter is d, travelling at velocity v enters a cloud of stationary cosmic meteoroids (small rocks). The average density of the cloud is p. When a meteoroid impacts the comet it adheres to its surface. As a result the comet slows down and after...

math
Thank you Steve! :)

world history
What are two positive and negative and things about civilization

math (please help!)
But that answer is wrong!

math (please help!)
What is the sum of all the constants k such that |x^2−169|−x−k=0 has three distinct real roots?

math
Thank you.

ela, english
TRUE OR FALSE: It is imperative that you pace yourslef because of a test is timed?

american history
For revolutionaries like Sam Adams, what term embraced a way of life, a core ideology, and an uncompromising commitment to liberty and equality.

Algebra
Find the balance in the account, 4,000 principal earning 6% compounded annually after 5 years.

math
4 sisters share 3 pies equally what fraction do they get

Geometry
For what values of x and y musy ABCD be a parrallelogram

math
A type of bacteria reproduces by splitting in two every thirty minutes. How many bacteria will there be after 4 hours if there are 2 bacteria to begin with?

6th grade math
Can't figure this math problem out: Write an algebraic expression for the product of five less than a number and three, less eight, is twenty-eight. HELP ME PLEASE!!

Math
What are the least and greatest numbers written in the hundredths that could round to 164.8 and explain your answer?

Math
A garden against the wall of a house is to be surrounded on three sides by a total of 336m of fencing. What dimensions of the garden will result in an area of 14,112m^2?

intermediate algebra
solve each formula for the specified variable, y-y^1 = m(x-x^1) for x

calculus
A force of 13 N is needed to keep a spring with a 2-kg mass stretched 0.25 m beyond its natural length. The damping constant of the spring is c = 8. If the mass starts at the equilibrium position with a velocity of 0.5 m/s, find its position at time t.

Mathematics
320

Chemistry
The above is incorrect and finds ratio chalcopyrite to ore. Not Cu to ore.

Science
A boy exerts a force of 15N to push a motor bike which has flat tyre for a distance at 30m.calculate the mass of the motor bike. Calculate the density of the motor bike.calculate the work done by the boy.[take g=10m|sm2

Science
A boy exerts a force of 15N to push a motor bike which has flat tyre for a distance at 30m.calculate the mass of the motor bike. Calculate the density of the motor bike.calculate the work done by the boy.[take g=10m|sm2

chemistry
I balanced an equation between lead(II) nitrate and potassium sulfate and ended up with: Pb(NO3)2 + K2SO4 --> PbSO4 + 2 KNO3 If 0.87 moles of potassium sulfate react with an excess amount of lead(II) nitrate, how many moles of lead(II) sulfate would be formed? I know I ...

physics
a car mass 100kg is moving up on incline of 15 degrees with horizontal.the enginr of the car applies a force of 5000n the confficient of kinetic friction between the surface of th tyic and road is 0,2.draw a free body diagram showing all the forces actin on the car

American Literature
I am writing a critique for my American Literature class on The Great Gatsby and I am so stuck. I don't know exactly how to prove my thesis. I need four different points. My thesis: Gatsby achieves the American dream by becoming quite successful; however, achieving the ...

Social Studies
What countries in South America have the highest elevation?

Reading
lol yes it is

Reading
Its really line 15

algabra
cubes 1 and 2 are similar if the volume of cube 2 is 45 and the scale factor between sides of the two is 2:3 what is the volume of cube 1?

Chemistry
CO2(g) + 2 NH3(g) CO(NH2)2(s) + H2O(g) What volumes of CO2 and NH3 at 193 atm and 450.°C are needed to produce 2.54 kg of urea, assuming the reaction goes to completion?

problem solving
21

math
what is the answer240/20multiply6-13plus41

Statistics
An urn contains 8 chips, numbered 1 through 8. A sample of 3 is drawn without replacement. What is the probability that the largest chip in the sample is a 5?

math
You are given the probability of event E. Find the odds in favor of event E and the odds against event E. a. 1/8 b. 2/5

math
Sabino took the ACT in 2003 and received a composite score of 22. If the mean and standard deviation for that year were, respectively, 20.8 and 4.8, what percent of all of the students who took the exams scored better than him?

math z-score
Henry's z-score on his reading test was 1.27. The class average was 60, the median was 58.5 and the variance was 6.2. What was Henry's "raw" score (his score before converting to z-scores)

medical assisting
imformation should include____________,_____________, and ________, procedures

PPPPPhysicssssss
kinda need it.......... assignment is due in 15 minutes....

Math
Which is a prime factorization? a. 5^2 x 7^2 x 18^3 b. 5^3 x 7^2 x 19^2 c. 6^2 x 7^3 x 18^2 d. 4^2 x 5^2 x 15^3

Math
Simplfy 10^1 x 10 ^-2 x 10 ^-1

math
solve using the elimination method. If the system has no solution or infinite number of solutions a state this 4x-6y=30 3x-5y=24

math
A 75ft diagnol brace on a bridge connects a support of the center of the bridge The horizontal distance that it spans is 15ft longer than the hieght that reaches on the side of the bridge.Find the horizontal and vertical distance spanned by this brace

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