Number of results: 73,265

**science help**

How can you describe the location of hafnium (Hf, atomic number 72) on the periodic table? choose all that apply. -Transition metals -noble gases -group 6, period 4 -group 4, period 6 pls help me damon or ms sue pls help me pls pls pls

*March 31, 2015 by Oscar*

**Physics - Assist pls!**

When a certain a.c. supply is connected to a lamp, it lights with the same brightness as it does with a 12V battery a) what is the r.m.s. value of the a.c. supply? b) what is the peak p.d. of the a.c. supply? Isn't rms value the same effective value as DC? What does root mean ...

*April 17, 2007 by Sola*

**Physics - Assist pls!**

Dear All please do help me out - thanks. How much heat and light energy is produced by a 100W electric lamp in 5 minutes? Solutn = I tried this using Energy = power x time 100 x 5min = 100 x 300 sec = 30,000J - Pls do I got the answer? You will see it easier if you include the...

*April 18, 2007 by Sola*

**math help pls pls pls**

Given f(x) = 4x + 13 and g(x) = 10x − 2, solve for (f + g)(x) and select the correct answer below. (f + g)(x) = 14x + 15 (f + g)(x) = 14x + 11 (f + g)(x) = 6x + 11 (f + g)(x) = 6x + 15 is it b pls help me

*March 31, 2016 by Oscar*

**Physics**

A child pulls a wagon along level ground. The handle with which she pulls the wagon makes an angle of 20.0 degrees with the ground as the child pulls with a force of 78.0 Newton. What are the components of the force. Pls pls pls pls help me answer this and may God bless u!

*October 16, 2013 by Stephanie*

**math help pls pls pls**

The graph below plots the values of y for different values of x: Plot the ordered pairs 1, 3 and 2, 4 and 3, 9 and 4, 7 and 5, 2 and 6,18 Which correlation coefficient best matches the data plotted on the graph? 0.5 0.8 0.9 1.0 pls help me

*March 19, 2016 by Oscar*

**physics.pls help**

How do you know what element is chemically active on the periodic table? PLS HELP

*October 5, 2011 by ted*

**science**

pls. pls. pls. somebody help me...you see im on a science class and i don't want to go to the regular section, so pls.... give me an acrostic for the word "SCIENCE"

*June 11, 2008 by chris*

**physics.pls help**

Why is it important to asaume that a rope under tension is taut and does not stretch. pls help

*November 14, 2011 by ted*

**physics.pls help**

A 100g bird sits in its nest. what is the Fnet(net force) in this case? pls help

*November 10, 2011 by ted*

**physics.pls help**

can you help me to isolate the ''t'' in this formula. d=V1t+1/2at^2 pls help

*November 5, 2011 by ted*

**geography**

hi,i have make a project on hurricane Katrina on disaster management pls help to get information pls pls help me............

*June 17, 2010 by varsha*

**Chemistry :'(**

(d) Which of the following sets of quantum numbers is not permitted? Select all that apply. 2,1,1,-1/2 1,1,0,-1/2 2,-1,1,-1/2 3,2,1,1/2 Pls pls pls help me :( x

*November 18, 2012 by Anonymous*

**Math pls help me pls pls**

If the outliers are not included, what is the mean of the data set? 72, 82, 3, 55, 62, 73, 90, 80, 151, 59, 46, 31 59 65 67 73 is it b

*February 10, 2016 by Jason*

**Physics**

PHYSICS HELP PLS!!How does the equation of a displacement v. speed graph (cart moving down an incline through a speed gate) relate to the work-energy principle. Pls answer asap! Thanks!

*April 16, 2016 by PLS HELP!!*

**help pls world history pls pls**

Which of the following is not associated with one of the pillars of Islam? charity faithfulness sacrifice self-glorification

*February 28, 2016 by Oscar*

**world history pls pls help help**

Who was the power behind the throne during Justinian's reign? Belisarius Augustus Sophia Theodora is it d pls help

*February 29, 2016 by Oscar*

**science help pls pls**

Which of the following terms refers to the foamy bubbles of a breaking wave? Duration Fetch Speed Surf is it d pls help me

*April 15, 2016 by Oscar*

**math help pls pls pls**

Choose the polynomial written in standard form. x^3y^2 + 4x^4y + 10x^9 x^4y^2 + 4x^4y^5 + 10x^2 xy^2 + 4x^3y^8 + 10x^2 x^4y^5 + 4x^3y^2 + 10x^2 is it the last one pls help

*March 31, 2016 by Oscar*

**science help pls pls**

The information about groundwater recorded by a student is valid when it is not biased its results cannot be repeated it is not obtained from a primary source its findings do not have to be shared with others is it a pls help me

*April 11, 2016 by Oscar*

**algebra pls pls help**

Factor completely: 2x^3 + 14x^2 + 6x + 42? A. 2[(x^2 + 3)(x + 7)] B. (2x^2 + 6)(x + 7) C. (x^2 + 3)(2x + 14) D. 2(x^3 + 7x^2 + 3x + 21) is it d pls help me

*May 12, 2016 by Oscar*

**physics- TEST TMRW PLS HELP!**

how would i do this? -----------------A-----------B-------- I<----1.5m------>l<--0.6m-->l<-0.3m->l a carpenter carries a 6kg board . the downward force he feels on his shoulder (A) is .... ? (B is where his hand is) pls help!! i have so much difficulty with ...

*December 9, 2012 by Anya*

**world history pls pls help help**

What did special religious observances in both the Aztec and Spanish calendars provide for people? Work and income Education and training Law and justice Fun and entertainment is it d pls help

*March 14, 2016 by Oscar*

**science help pls pls**

Which of the following is typically associated with a large amount of organic material in a water supply? Lower turbidity Higher phosphates Fecal coliform High dissolved oxygen is it c pls help

*April 3, 2016 by Oscar*

**Finance**

Omega Instruments has budgeted $300,000 per year to pay for certain ce- ramic parts over the next 5 years. If the company expects the cost of the parts to increase uniformly according to an arith- metic gradient of $1 0,000 per year, what is it expecting the cost to be in year...

*May 26, 2013 by Aly*

**physics**

help pls. i need to find the best animation of the movement of electrons and protons... the best one... pls send me the link. thanks so much.

*April 24, 2015 by Lucy*

**physics.pls help**

How much time can you save travelling diagonally instead of running 450meters south and then 650meters west. if your running speed is 5.0m/s. pls help

*November 1, 2011 by ted*

**Math**

Can u pls pls pls solve this algebraic expression?? I cant solve it although I tried many possible ways and solutions :/ 10+1/3[4k-(18+7k)]

*July 31, 2011 by Sally*

**science help pls pls**

Which of these surface features are formed when the acid in groundwater reacts with limestone? rivers and springs sinkholes and caves hot springs and geysers wetlands and volcanoes is it b pls help me

*April 12, 2016 by Oscar*

**math help pls pls pls**

Create an example of a polynomial in standard form. How do you know it is in standard form? pls help me

*March 20, 2016 by Oscar*

**physics/medical physics**

please assist me to get project topic under biophysics or application of physics in medecine

*August 12, 2009 by mataos*

**physics-pls help**

The ball is thrown froma height of 10 meters with an initial upward velocity of 3.0m/s. How long does it take to land on the ground? What is its maximum height? i know the formula is d=v1t+1/2at^2 but i do not know what else to do. pls help

*November 7, 2011 by ted 2*

**Physics**

A spiral spring is compressed by 0.04m. Calculate the energy stored in the spring if the force constant is 400N/m... pls I need help wif dis, detailed answers pls, tnx

*August 1, 2016 by Okpe-Lewis A.L.H Emmanuella*

**physics**

pls explain to me how you add 65km{North 85 degreesWest], 3500m[South 10 West}, 6000m{East 70 degrees South], 54km[North 60 degrees East]. pls explain to me how i should add these vectors. I really need help. pls help

*October 26, 2011 by ted*

**physics- TEST TMRW PLS HELP!**

w w w . m e d i a . c h e g g c d n . c o m / m e d i a / a c 3 / a c 3 b b 1 e 1 - 5 b a 8 - 4 1 9 e - 9 a 8 4 -a d 5 0 e 4 6 a 2 9 4 e / p h p s U O o L 3 .p n g (delete all spaces for link to work) Determine the magnitude of the resultant moment produced by the forces about...

*December 9, 2012 by Anya*

**math help pls pls pls**

Choose the correct simplification of the expression the quantity a to the 2nd power over b to the 3rd power all raised to the 4th power. A. a to the 6th power over b to the 7th power B. b^12 C. a^8b^15 D. the quantity a to the 8th power over b to the 12th power pls help me

*March 21, 2016 by Oscar*

**afrikaans (AFK503/101)**

Hi there, can anyone pls help me with AFK1503/101 - 2015. I am seeking an English version of this assignment pls, is there an English one available? if there is pls provide me with a website address to get access. Thank you. Tanya

*August 12, 2015 by Tanya*

**math help pls pls pls**

Consider the functions f(x) = 2x + 1 and g(x) = x^2 − 10. What is the value of f[g(3)]? 39 −3 −7 −1 pls help me

*March 31, 2016 by Oscar*

**math help pls pls pls**

Four polynomials are shown below: A. 2 − 2x5 + 2x2 B. 5x3 + 5 − 5x4 C. 3x + 2x5 D. 6x3 − 1 Which of the above polynomials is a 5th degree binomial? Polynomial A Polynomial B Polynomial C Polynomial D pls help me

*March 21, 2016 by Oscar*

**algebra pls pls help**

Determine which polynomial is a perfect square trinomial. 49x2 − 28x + 16 9a2 − 30a + 25 25b2 − 45b − 81 16x2 − 24x − 9 is it b pls help me

*May 12, 2016 by Oscar*

**Science**

Pls help me solve this question pls. A stone of mass 6.5kg is thrown vertically upward with velocity with 10m/s find a. the potential energy at the greatest height and the value of h .b the kinetic energy of reaching the ground again(g=10m/s2) in physics?

*February 5, 2017 by Joseph*

**science help pls pls**

A scientific law can be best described as an explanation of a specific relationship a series of observations with contradictory data a phenomenon which works under changing conditions a description of specific relationships under given conditions is it a pls help me

*April 15, 2016 by Oscar*

**physics.pls help**

Participants in a road race take water from a refreshment station and throw their empty cups away farther down the course. If a runner has a forward speed of 6.20m/s, how far in advance of a garbage pail should he realease his water cup if the vertical distance between the lid...

*November 8, 2011 by ted*

**physics.pls help**

Participants in a road race take water from a refreshment station and throw their empty cups away farther down the course. If a runner has a forward speed of 6.20m/s, how far in advance of a garbage pail should he realease his water cup if the vertical distance between the lid...

*November 9, 2011 by ted*

**science help pls pls**

Which of these statements best explains why scientists use models? to allow other scientists evaluate their data to speed up or slow down natural processes to describe and explain non-observable objects and processes to predict the scientific theories which would be proposed ...

*April 12, 2016 by Oscar*

**science help pls pls**

One group of scientists has proposed a new theory on Adaptation. A majority of scientists worldwide agree with the theory. The theory is most likely biased. incomplete. accurate. unchangeable. is it accurate pls help me

*April 28, 2016 by Oscar*

**physics (mechanics)**

find the constant force necessary to accelerate a car of mass 1000kg from 15m/s to 20m/s in 10s against resistance of 270N ? pls show work (answer is 770N just in case to check) ive been asking this question 4 times still no one answer . someone pls do .

*February 7, 2016 by sam*

**calculus repost, please assist pleassssssse**

Hi Trying to work with confusing Taylor series....any assistance would be much appreciated!! How can I use T(x)=5-9((x-2)^2)-3((x-2)^3) to approximate the f(0) ???? I realize that Taylor series f(x)=f(a)+f'(a)(x-a)+f''(a)((x-a)^2)etc... but the above T(x) is centered at x=2, ...

*March 15, 2011 by kiksy*

**MANIPULATION OF DNA**

can anyone describe to me what this is pls? also can anyone pls explain how dna manipulation works and what it does pls?

*April 1, 2009 by GLORIA*

**healthcare..Help.. please?**

The manager of a an out-patient surgical unit shares patient information with a pharmaceutical representative to assist the rep in putting together a survey could assist with the FDA approval for a new drug to combat serious post-op infections. Is the manager involved in an ...

*October 27, 2010 by Bobra*

**math help**

1/4 divided by 3/8 pls help me im confuss i forgot the ste pls explain

*October 27, 2012 by Anonymous*

**pre algebra**

2x^2 + 8 - 4x + 3x - 6x^2 + 7 what does this simplify to A)-8x^2 - 7x + 15 B)-4x^2 - x + 15 C)4x^2 + x + 15 D)8x^2 + 7x + 15 pls help me reiny steve or damon pls help me

*March 23, 2015 by Oscar*

**math pls help me**

(-2y + 5 )(y + 3) what would this simplify to? A)-2y^2 + 8y + 15 B)-2y^2 - y + 15 C)2y^2 + 8y + 8 D)2y^2 - y + 8 pls help me steve or damon or ms sue

*March 23, 2015 by Oscar*

**math**

Pls i want you to teach me the 5 90 lotto formular pls i need it now

*September 30, 2015 by abiodun*

**food science**

pls give me an idea on the formulation of bavarian cream filling. pls. thank you

*January 4, 2008 by vcq*

**Science(Help NOW, Pls)**

wat elements make up water? pls help! i will be very happy if you do! :S

*December 15, 2010 by GirlSense*

**science help pls pls**

Which of these is the most practical method to prevent global water shortage? Stop planting trees and shrubs in gardens. Conserve, recycle and reuse water in households. Stop using appliances like washing machines and dishwashers. Discourage setting up of power plants which ...

*April 11, 2016 by Oscar*

**science help pls pls**

Dams are used to produce hydroelectric power. Which of these best describes the impact of a dam on the environment? It causes air pollution. It reduces the level of groundwater. It causes changes in the river ecosystem. It reduces the level of oxygen in river water. is it c ...

*April 12, 2016 by Oscar*

**math help pls pls pls**

A company is deciding whether or not to hire a new worker. The company must pay the worker hourly and cover a daily cost for insurance. The cost to pay an hourly worker for one day is represented by the function y = 8x + 25, where x is hours. What is the y-intercept, and what ...

*March 18, 2016 by Oscar*

**Science(Help NOW, Pls)**

organisms in which domain live in every environment? pls help, im stuck on this one. :S

*December 15, 2010 by GirlSense*

**(pls help) algebra**

4x+y-32=1, 6x-y-4z=7, 10x+2y-6z=5 pls show me how to solve for x,y,z. Ans:xx=1.5,y=-2,z=1

*July 8, 2013 by david*

**physics**

A man is driving his car ata velocity of 100km/h on a straight road. H e sees a traffic jam at a distance and slows down to 12.5m/s in 3.0s. What is the average acceleration of the car? pls help. I know that the formula for average acceleration is V2-V1 divided by T2-T1 but ...

*October 12, 2011 by ted*

**e commerce or marketing, help pls**

hi,good evening everyone can you help me on finding a clothing manufacturer resource system??? pls thank you

*December 6, 2011 by need ASAP*

**Algebra help pls fast**

How do you Find the lateral area of a square pyramid. base:8 Height:22. and side:8 Help pls

*January 8, 2016 by Laura*

**Chemistry**

rank the following atoms and ions in the order of expected increasing radius: Ca, Ca2+, Ar Pls pls help me kindly... Anyone?

*November 18, 2012 by Anonymous*

**PLS HELP ME WITH ONE MATH QUESTION!!???**

pllllsssss help me!!!!!!! 5. How many lateral edges are there in a triangular prism? (1 point) 6 3 9 12 I don't know if its 6 or 9 or even 12!!??? pls help asap!!!!!

*February 19, 2014 by TTR+S<3*

**Pre-Algebra Help pls fast**

How do you Find the lateral area of a square pyramid. base:8 Height:22. and side:8 Help pls

*January 8, 2016 by Laura*

**physics.pls help**

The volume of a cylinder is defined by the formula V=pie R squared h. If initially have a cylinder with a volume of 10m cubed. Find the volume of the cylinder if the height doubles and if the height is cut in half. pls i really need help.

*November 3, 2011 by ted*

**Grammar**

Choose the correctly punctuated sentence: A) Taylor will sell the tickets for the ball game and Danielle will assist her. B) Taylor will sell the tickets for the ball game, and Danielle will assist her. C) Taylor will sell the tickets for the ball game, and, Danielle will ...

*November 14, 2012 by Marie*

**algebra pls pls help**

The equation f(x) = 4x^2 − 16x + 9 represents a parabola. What is the vertex of the parabola? (2, −7) (−2, 57) (4, 9) (−4, −137) is it a pls helpme

*May 12, 2016 by Oscar*

**Help pls.**

Compute the acceleration of the block sliding down a 30 deg inclined plane if the coefficient of kinetic friction is 0.20. Show solution pls.

*August 23, 2014 by Yan-yan*

**LA --- 1 question pls help!!!**

hi, one question based on the short story called, "Cyber Chitchat" this one confuses me, pls help if u know the book! 8. The tone of "Cyber Chitchat" is (1 point) serious. humorous. depressing. angry. i think its humorous but im not so sure..... pls help asap!!!!! thanx in ...

*March 2, 2014 by TTR+S<3*

**science help pls pls pls**

A new object, Object Y, was discovered outside our solar system. Object Y is small and rocky, is not a satellite of any other object, and it does not have enough gravity to clear away smaller objects near its orbit. The characteristics of Object Y most closely resemble those ...

*April 15, 2016 by Oscar*

**science help pls pls**

Jupiter is 5.2 AU from the sun. What is its distance from the sun in kilometers? 28,846 km 78,000 km 28,846,153 km 780,000,000 km is it d pls help

*April 21, 2016 by Oscar*

**math help pls pls pls**

Find the quotient of the quantity negative 36 times x to the 3rd power minus 6 times x to the 2nd power plus 12 times x all over negative 6 times x. −36x3 − 6x2 − 2 −6x2 + x − 2 6x2 − x + 2 6x2 + x − 2 pls help me

*March 21, 2016 by Oscar*

**Algebra**

I am in need of assistance with the following problem: v-4(4-v) = -2(2v-1) I don't want an answer I will work the problem myself I just need some one to assist me with the detailed rule or formula to work the problem. I have been on multiple sites trying to find something to ...

*March 12, 2007 by Alexcia*

**CHEMISTRY> HELP QUICK! pls**

I GOT THIS WRONG IN AN ASSIGNMENT. I HAVE AN EXAM IN 2 DAYS. CAN YOU SHOW ME HOW TO DO IT PLS. What is the pH of a 2.62 x 10 -1 M NaNO2 solution ? NB the pKa for HNO2 = 3.153. 12.13 13.42 1.87 8.29 0.58

*June 4, 2010 by Lucinda*

**science help pls pls**

Which of the following is typically associated with a reduction in photosynthesizing plants in a water supply? An increase in dissolved oxygen A decrease in dissolved oxygen An increase in phosphates A decrease in phosphates pls help me

*March 27, 2016 by Oscar*

**ss --- one question pls help!**

pls help!!! What kept the price of cotton high in the years before 1860? a. cotton gin b. demand in Great Britain c. slavery d. large plantations I origionally thaught it was a. cotton gin, but after research, it looks like it was b. demand in GB my textbook doesnt say ...

*February 27, 2014 by TTR+S<3*

**article**

How does this sound? It was a close call on Tuesday, December 18th for the Vernon Vikings. The Vikings beat the Bernards by the skin of their teeth with a close score of nine-eight. In the first period Tyler Blankman, and Bryan Peterson scored the first two goals with the ...

*December 18, 2007 by anonymous*

**chem**

A blood sample contains several different types of cells, each of which contains different combinations of specific ions and molecules. The cells are suspended in water, and the water also contains many molecules and ions. Which term or terms could be used to describe this ...

*September 24, 2007 by K*

**math help pls pls pls**

The map of a biking trail is drawn on a coordinate grid. The trail starts at P(−7, 6) and goes to Q(4, 6). It goes from Q to R(4, −6) and then to S(6, −6). What is the total length (in units) of the biking trail? 25 12 13 21

*March 16, 2016 by Oscar*

**History**

The Transcendentalism movement most directly affected the development of American politics literature popular culture painting and sculpture Is it c. Pls help me ms sue or dr.bob or steve or anyone pls help me

*March 20, 2015 by Oscar*

**world history pls pls help help**

What caused the downfall of Ghana? a) Climate change and Berber battles b) Songhai invasions and disease c) Internal revolts d) Depletion of the salt mines is it b or c

*March 14, 2016 by Oscar*

**reading help**

Vocbulary Words: Assist Assume Bluntly Commission Competitors Disapprove Earnings Exasperated Extinguished Humiliating Patron Percentage Personnel Rectify Regardless Worthwhile Use each clue to write a vocabulary word. a. not disadvantageous but, b. not ruin, but, c. not ...

*March 14, 2015 by John Dosley*

**math pls help!!!!!**

these are the few i don't know/im not sure. pls help! The distance from Newtown to Oldtown on the highway is (6x^2 + 2x – 2) miles. Using the back roads, the distance is (5x^2 – 8x – 6) miles. How many miles shorter is the second route? A. 11x^2 + 10x - 8 B. -x^2 - 6x + ...

*May 31, 2014 by zumai*

**math help pls pls pls**

Find the quotient of the quantity negative 15 times x to the 2nd power times y to the 6th power plus 50 times x to the 4th power times y to the 3rd power minus 20 times x to the 2nd power times y all −3y5 + 10x2y2 − 4 −15x2y6 + 50x4y3 − 4 3y5 + 10x2y2...

*March 21, 2016 by Oscar*

**Math**

Pls help .[1] Solve the eguation 4*=28. [2] change 1/20 to decimal [3] change 60% to a common fraction . Pls i need the solving thank you

*February 23, 2012 by Bright*

**calculus**

After solving with A=(-1,2) x^2+2x^2+x+1 got 119/12a pls where did i get it wrong. And with -[(-55)] x^2-25dx i got -50 pls am i correct

*September 7, 2013 by grace*

**Lotto game**

This is winning Number, 55-80-83-65-3, pls can you help me out of the next number on 1th feb 2014, pls,

*January 30, 2014 by Adekunle*

**math help pls pls pls**

Tablets are on sale for 15% off the original price (t), which can be expressed with the function p(t) = 0.85t. Local taxes are an additional 8% of the discounted price (p), which can be expressed with the function c(p) = 1.08p. Using this information, which of the following ...

*March 4, 2016 by Oscar*

**social studies---check 1 question pls**

6. Whose mill launched the factory system? (1 point) James Monroe Eli Whitney ***Samuel Slater*** Francis Cabot Lowell help pls

*January 29, 2014 by TTR+S<3*

**english**

need some ideas for a classification essay on advertisement pls I have submitted three different options to my teacher and he has declined them either saying there is overlap or they are not distinct. i am stumped! pls help

*September 13, 2014 by c*

**science help pls pls**

Which of these is an example of how the ocean plays an important role in climate change? The warm Gulf Stream helps maintain moderate temperature in coastal regions in southern Florida. Aquatic animals produce carbon dioxide during respiration which causes warming of ocean ...

*March 3, 2016 by Oscar*

**physics**

Two children on racing bikes start from the same reference point. Child A travels 5.0m/s{right} and child B travels 4.5m/s{right}. How much farther from the point of origin is child A than child B after 5.os? pls I really really need help. I do not understand it and I do not ...

*October 4, 2011 by ted*

**math help pls pls**

Systems of equations with different slopes and different y-intercepts have more than one solution. Always Sometimes Never

*December 2, 2015 by Oscar*

**Science(Help NOW, Pls)**

when rock layers are pulled from opposite directions, one block tilts up, while the other block does what? answer pls, need help.

*December 15, 2010 by GirlSense*

**science help pls**

Which of the following is a technique used in relative dating? Beta decay Index fossil correlation Isotope ratios Radiocarbon dating is it d pls help me

*April 16, 2016 by Oscar*

**Social**

Why is the Nice France attack matters to you right now? *Can someone help me write a short paragraph? Pls Even a short response. Pls. Thanks a lot.

*August 23, 2016 by Deryl*

**Anthropology**

Which of the following is not an example of the type of work applied anthropologists do? Applied anthropologists : a)help to develop various programs associated with health care b)help to develop businessmen and corporations solve production and supply issues c) assist in ...

*December 15, 2011 by TAYLOR M B*