Help

This page lists questions and answers that were posted by visitors named Help.

Questions

The following questions were asked by visitors named Help.

I truely need help i just don't understand anything and I've read so many times the chapters that I just can't comprehend anything nomore. I have a test on the first friday of november. I'm trying to answer all the questions in the study sheet and these q...

g(x)=[(4x-7)(x+11)] Find g'(x) I thought that you use the product rule but I have the answer and I am not getting the same thing. The answer is g'(x)=3/2[4x^2+37x-77]^1/2 * (8x+37) I keep getting just 8x+37 when I do the product rule. What am I missing?

How to write a proposal !!!!

What is the products for HCl + Na2S04 + BaCl2?

Hi, Please I researched so badly, I need help to find information about Cybernomics issues and solutions. Please can you help me. Thank You.

The following sentence indicates what kind of bias: The best art can cut through our tendency to experience life with complacency and prejudgment? a)There is no bias. b)a positive bias c)a partly positive and partly negative bias d)a negative bias

The following sentence indicates what kind of bias? Most of the democracies exhibited lethargy and shortsightedness in the face of fascist aggression. a)a postive bias b)There is no bias. c)a negative bias d)an aggressive bias

I need help figuring out how to phrase the reasons I picked the answers to the following sentences. I have the answer just can not figure out the best way to say why they are correct. Please help. Class is COM 150 week 9. A)My brother knows more about tec...

Use the distributive property to help solve the equation: 3(w-3)=-6 W= ??? I have 3w - 3*3 = -6 then I am lost, could someone explain the steps.

Determine whether (-4,5) is a solution of 4x + 8y =1 I would like the steps so I can practice this.

Find the slpe if it exist of the line containing the pair of points: (2,3) and (9,-4) I get -7/7 but do I need to change this to -1 and why?

find the domain of the function P(x) =x^2 - 2x + 3 I don't get at all

solve: -0.6x<-12

collect like terms: 19c + 5d -10c -8d it dosent come out right I get 9c + 13d

Soybean meal is 18% protein: cornmeal is 9% how many pounds of each should be mixed together in order to ge a 360 pound mixutre that is 13% protein: I get 200 cornmeal 160 soybean meal I think I put this backwards.

find the domain of the function g(x) = 2/8-3x I think answer is {x|x=0} but not sure

Can someone teach me the steps in finding these like terms I am not sure I am doing it right? 19c + 5d - 10c -8d I come up with 19c -10c =9c + 5d - 8d = 3d so: 9c - 3d do I finally got this?

Find the x and y intercepts: y=x^2-3

Write a projectile motion problem with the initial condition vi=15 m/s at 50° above the horizontal. Solve this problem for ∆x, max height, and time of flight.

I can not figure out the next step can someone help (x+3)*4+(x-3)*3=-5x 4x+12+3x-9=-5x 7x-3=-5x

The problem is (14ac)-a^2-2ac+b^2) I need to subtract by removing a factor of 1 when possible the answer that I got is -a^2+16ac+b^2 can anyone tell me if this is right and if not can you help me solve

the speed of train A is 16 mph slower than the speed of train B. Train A travels 210 miles in the same time it takes train B to travel 290 miles. Find the speed of each train. Train A = 58 mph Train B = 74 mph Can you tell me if this is right

Solve v/9 - v/ 21 +1/9 Answer is 0 Is this right

^^ i wwant to ask about... 1,000,000; base 10

a) What is Agnessa's hourly rate of pay in a year with 26 biweekly paydays? b) Using your hourly rate computed in part a), what would Agnessa's gross earnings be for a pay period working an extra 10 hours overtime paid 1.50 times the regular rate of pay?...

Write a short analysis of the use of researching in your future industry – how do they gather or use research ie: types of projects, proposals, etc… -can u explain this question to me plz. are they asking me to write a paragraph explaing how do they do re...

Make sure to identify: • Your expectation of use of research by you in the workplace (ie: user, researcher, contributor) May i knoe what this quesiton is asking!!! thnx

Problem: In a first order decomposition reaction, 50% of a compound decomposes in 10.5 minutes. What is the rate constant of the reaction? The solution my professor gave says: k = .693 / 10.5min Where did the .693 come from? Thanks

Can someone help me I need to find out how to solve the following equation What is the PH/POH of a .0727m H3O+ Solution at 25 degrees c

Use mathematical induction to prove that 5^(n) - 1 is divisible by four for all natural numbers n. Hint: if a number is divisible by 4, then it has a factor of 4. also, -1 = -5 +4 This is a take home test so I don't want the answer because I want to know...

Why is it necessary for the encoding function to be one-to-one?

What is the net ionic equation for Phosphate ion + ammonium molybdate in the presence of nitric acid?

wat is the answer for the pattern 1,3,6?

what economic, social , and political forces have made employee traininng even mor eimportant today than in the past?

Rubber Band A 156 g hockey puck is attached to a rubber band and rotated with an angular speed of 9.8 rad/s on frictionless horizontal ice. It takes a force of 1.12 N to stretch the rubber band by 1 cm. (a) If the original length L of the rubber band is 1...

A piece of glass has a temperature of 72.0 °C. Liquid that has a temperature of 37.0 °C is poured over the glass, completely covering it, and the temperature at equilibrium is 50.0 °C. The mass of the glass and the liquid is the same. Ignoring the contain...

Assume that the pressure is one atmosphere and determine the heat in joules required to produce 3.23 kg of water vapor at 100.0 °C, starting with (a)3.23 kg of water at 100.0 °C and (b)3.23 kg of liquid water at 0.0 °C

what is the total number of joules released when a 5.00 gram sample of water changes from liquid to gas at 100 degrees Celsius?

A truck tire travels about 11 feets in 1 full rotation. What is the diameter of the wheel, to the nearest inch?

18 < -2m would the anser be m < -9?

What happens to the inequality symbol when you do the following to each side of an inequality? 1. Subtract a negative number

find the measure of an angle whose supplement measures two times its measure

Is the price of a piece of cloth a function of the length of the cloth? Explain

have no idea how to do this... divide and write your answer WITHOUT exponents. -11.2 x 10^-7 _______________ = 1.6 x 10^-2

y= 3/5x - 6 x= 4

Find two numbers with a sum of -8 and a difference of 4. Let x be the greater number and y be the lesser number?

Every morning Leah runs about 5/8 mile. At this rate, about how many miles does leah run in 2 weeks?

A triangle has 2 angles that measure 60 each. Which of the following best describes thiz triangle. A. Right isoseles triangle B. Equilateral triangle C. Obtuse isosceles triangle D. Acute scalene triangle

A 6.58g sample of compound was placed in a 12.6 L container. At 25.0*C, the pressure was found to be 0.75 atm. what is this compound?

Education in financial planning teaches (simple present tense) me how to save money for my children’s college education. Could someone tell me if this is correct?

(Future Value) Suppose you invest $8000 into an account that pays an annual interest rate of 6.2%. How much is in the account after 30 years if a. simple interest is compound monthly? b. interest is compounded monthly? c. interest is compounded daily?

Mr.perez is trying to move a circular folding table with a 4 foot radius through a window that measures 5 ft by 3 ft. He plans to lean the table over and move it through the diagonal of the window. Will the table go through the window?

Give the formula of lead iodide showing all working. You must use knowledge about atoms and electron configuration to explain answer. Thanx :)

how many grams are in 12.5 moles of chlorine (gas)?

An escalator 14 m long is carrying a 70-kg person from one floor to another 8 m higher. The escalator has a speed of 1.0m/s. How much work does the escalator do in carrying the person to the top?

A 1000-kg car is moving east at 80 km/h collides head on with a 1500-kg car moving west at 40 km/h, and the two cars stick together. Which way does the wreckage move and with what initial speed?

Tarzan, who weighs 917 N, swings from a vine through the jungle. How much work is done by the tension in the vine as he drops through a vertical distance of 3.85 m? Simply calculating; W=(917N)*(3.85m)= 3530.45 J Isn't working, I'm not sure how to apply t...

One boat tows another boat by means of a tow line, which is under a constant tension of 495 N. The boats move at a constant speed of 4.75 m/s. How much work is done by the tension in 1.10 min? Not sure how to apply the work-energy theorem. I assume veloci...

The driver of a 1350 kg car, initially traveling at 10.6 m/s, applies the brakes, bringing the car to rest in a distance of 15.0 m. Find the net work done on the car. Not sure how to set this problem up.

A hovercraft of mass 69.0 kg can move on a horizontal surface, the x-y plane. A single unbalanced force acts on the hovercraft, but the size of the force is unknown. The hovercraft initially has a velocity of 5.0 m/s in the positive x direction and some t...

Complete this table of values for four aqueous solutions at 25 °C. Solution A: [H+]=0.0093M [OH-]=? pH=? pOH=? Solution B: [H+]=?[OH-]=1.4e-6M pH=? pOH=? Solution C: [H+]=?[OH-]=? pH=5.36 pOH=? Solution D: [H+]=?[OH-]=? pH=? pOH=10.14

Find the ending balance in an account that opens with $5,000, earns 7.5% interest compounded quarterly, and is held for 5 years.

Graph the line! y=5x+2 the plot point that i came up with are (0,2)(2,8) is this correct?

Find three ordered pairs that satisfy the equation. y = x+2 (0,1)(0,3)(2,0)

Hi there - My labs and lectures aren't in synch at the moment so we are now doing a prelab that is asking for info I haven't been taught yet uggg... The prelab question I'm having trouble with is as follows: What is the volume at STP for 0.415 g of argon...

Ionic bonding typically occurs when a ______________ bonds with a ______________

The electric field everywhere on the surface of a charged sphere of radius 0.260 m has a magnitude of 545 N/C and points radially outward from the center of the sphere. (a) What is the net charge on the sphere?

Knowing that delta Hvap for water is 40.7 kJ/mol, calculate Pvap of water at 46 C

Two capacitors, C1 = 27.0 µF and C2 = 35.0 µF, are connected in series, and a 21.0 V battery is connected across them. (a) Find the equivalent capacitance, and the energy contained in this equivalent capacitor. equivalent capacitance= µF total energy stor...

Can someone tell me what the graph of r=cos (5/2 x angle) should look like?

To monitor the breathing of a hospital patient, a thin belt is girded around the patient's chest . The belt is a 215-turn coil. When the patient inhales, the area encircled by the coil increases by 41.0 cm2. The magnitude of Earth's magnetic field is 50.0...

A solution is prepared by adding 50ml of .05 M HCl to 150 ml of .10 M HNO3. Calculate the concentrations of all species in this solution.

A 24-V battery is connected in series with a resistor and an inductor, with R = 5.6 Ω and L = 2.0 H, respectively. (a) Find the energy stored in the inductor when the current reaches its maximum value. (b) Find the energy stored in the inductor one time c...

What are some issues in Kalamazoo, Michigan that I can do a persuasive speech on. Issues that are 2010 or greater?

If p is a positive integer and is greater than 3. How many prime integers are there in 3p including 1 and 3p

I'm the guy doing the persuasive speak on the Oil leakage in the Kalamazoo river. I can see you're from/know of this area. Can you give me some pointers/idea's of what I could talk about/include in my persuasive speech. I've been doing a little reading of...

The index of refraction for crown glass is 1.512 at a wavelength of 660 nm (red), whereas its index of refraction is 1.530 at a wavelength of 410 nm (violet). If both wavelengths are incident on a slab of crown glass at the same angle of incidence, 1.1°,...

A buoy oscillates in simple harmonic motion according to the motion of waves at sea. An observer notes that the buoy moves a total of 6 feet from its lowest point to its highest point. The buoy returns to its highest point every 15 seconds. Amplitude: 6 f...

Determine the least positive value of t for which d=0. d=cos((3pi/4)(t)) 0=cos((3pi/4)(t)) I got stuck on this step Please help

consider the following: A point on the tip of a tuning fork vibrates in harmonic motion described by the equation d=10sin(ωt). 1. ω for a tuning fork that has a frequency of 535 vibrations per second. (I don't understand this question) 2. How many cycles...

What is the period and frequency of a 10-pound weight oscillating (as a pendulum) on a 5-meter-long rope?

Solve for theta, giving a general formula for all of the solution: tan(theta)=-1 sin(theta/2)=1/2

prove: cot^2(x)=cos(x)/(sinx)(tanx)

Use the half-angle formulas to come up with an exact expression for each function value below. You do not have to simplify your answers. cos(pi/16)

Solve the equation 2sin(2x) = cos x. and Solve the equation cos^2(2x)–sin^2(2x)= (√3 / 2).

What kind of rhectorical or fallaci is this statement When religious conservatives enact laws to enforce the idea that their God abhors suicide, they threaten the central principle on which America was founded

I can't seem to figure out which fallcy this would be, is anyone familiar and could tell me which one for the following statement? 'To parents who think it's a good idea to share parenting, I say, "OK then, let the child stay in the house and you two swap...

I don't understand this question. I am suppose to be simplifying this: u^4-1/u^3-1 I put (u^2+1) (u+1)(u-1) for the top but the bottom, I can't figure out why my book put (u^2+u+1)(u-1) when it's only u^3...where did the extra u come from?

1-1/square root 3

Tube worms that survive near geothermal vents of hydrogen sulfide rely on bacteria living inside them to obtain energy by the oxidation of H2S to SO4^2-. What is the overall change in the oxidation number of sulfur for this reaction?

can a base be negative at the same time as my exponent? how will you solve this one? -6 ^-3

The number 7 is a factor of 1001. explain how you know 1001 is a multiple of 7? How does knowing that 7 is a factor of 1001 help you to get another factor of 1001?

How many moles of H2 can be produced? (2.14 mol)

how do you balance equations to get the formula?

what are redox/non-redox not getting it? Can you break it down?

Answers

The following answers were posted by visitors named Help.

use your conversion factors to determine grams to mols and then use mols of cl- per solution to convert

To find the percent you add up all the numbers 5+6+7+12+...then whatever number you get is the denominator. So if you want to find the percent of rats you take 12 divided by all the numbers added together. To determine the degrees of each part you can div...

Can someone tell me if I am right?

y' = 60(3x + 1)^19 y' = 60(3(0) + 1)^19 y' = 60(1)=60 Then use point-slope form y - y1 = 60(x - x1) y - 1 = 60(x - 0) y - 1 = 60x y = 60x + 1

Why doesn't it enter the reaction?

Ok, first you integrate the problem so it equals 19x + x^2 - 5x^4 Next I'll write this out then show you. You then plug in x = 3 to this equation and then plug in x = 1 Subtract the equation of x = 1 from the equation x = 3. (19(3) - (3)^2 - 5(3)^4) - (19...

Thank you, I can tell which sentence is written correctly, but trying to figure out the pronoun reason is a little confusing to me. I will research some more.

do you know which equation to use? i have no idea what to do!

thanks that helps. so how would you solve it for the other listed values?

Thank you I forgo about checking the answer

How do you determine the moles of just NaCl? and is the moles of HCl and NaOH just the molar mass? Thanks

Pitch is to make a plane descend or climb. The pilot adjusts the elevators on the tail to make a plane descend or climb. Lowering the elevators caused the airplane's nose to drop, sending the plane into a down. Raising the elevators causes the airplane to...

Okay, sorry....I posted it again correctly :)

:) Thanks you so much! :)

Would it be 43.75g

I meant 443.75 g, would that be correct

Or would it be just 35.5 grams in Cl?

What do I put my answers in? So the anwser will be 14*8??

See above what?

6950*.105=525 is this correct?

Thanks, I was close! I'm not that good with plotting graphs.

@writeacher ...i'm still confused.

Would I use cosine or sine?

How do I find omega (ω)?

I got frequency: 2pi/√ 2 Period: √2/2pi

awesome thank you so much...! :)

awesome.. I wasn't sure about the negative sign..:)

is a =-6.75DS?...

I know, but wanted to be sure about the let statement, equation parts they were asking for. Thanks.

Ok.. Can u check these for me too please? Rename each repeating decimal as a fraction in lowest terms. Using let statement, an equation, a proper solution (using properties of equality) 1) 0.87 (repeating nos are 87) So.. Let X = 0.87 100X = 87.87 - X = 0...

Sorry I repeated these question to you because I forgot to add there are repeating numbers or ellipsis.

Reiny ...Thank you so much for your helpfulness and kindness. Goodnight...

Reiny, do u think 1st question about blankets should b written differently? For e.g. If we say b= 5, then the first part of the equation will equal 175+ 5= 80. I'm thinking it should be written as this: 25 (7+b) = 300 175 + 25b = 300 25b = 125 Pls let me...

How many 2s are there in 7

Sorry meant rational number?

1) 3r + 5 _____. + 2 = 12-2r 2 Find value of r

can u please tell me the number of molar mass i was using...

What is w? You can use e, pi, and M in your response. Please do not subtitute 6 for M.

In Problems 1 to 5 we will work through example of QFTM for M = 6. Problem 1: What is w? You can use e, pi, and M in your response. Please do not subtitute 6 for M. Specify the probability amplitudes. You should use w to denote ƒÖ, but please fully simpli...

Got this result for above question: exp(2ðji/M)âj However it is graded as wrong, can someone help?

exp(2piji/M)beta j

What is w? You can use e, pi, and M in your response. Please do not subtitute 6 for M. Got this result for above question but it is graded wrong, can someone help? e^i*pi/3

Thank you! Did somebody figure out one or all of the QTF6 questions?

Thanks Anonymous and Gyanno! Anyone got Problem 3, 4 or 5?

Meant thanks Helpman!

Anyone for b, c, d?

Please help simonsay! Have problem with expresion too.

a) 0.3571 b).02193 c).0229

a)1, 1, 0, 0, 0, 0 1, 0, 0 b)1, 1, -1, -1, 0, 0 1, -1, 0 c)0 d)12.6490

a)100 b)9.1287 c)0.851

m<AOC=7x-2, m<DOC=2x+8, m<EOD=27 find the value of X

Thanks, Walter DE

Thanks to stat001,

9 1 10 4 11 1 13 1

thanks argonaft plz do post others if you come up with the answers

Help for Q. No 6

6 then I will help with 5, 9 and 12

Leave it.. Its not good to discuss exam questions outside. I don't know how i reached here.. i just realized i don't need course certificate, if I'm not worth it. So, I will try to solve it myself. You do too.. :)

How do you know that the NaCl has 100 ml. How much volume does the water which is also a product have?

Thanks for your help

Oh ok I understand now so I would say 1.a 2.a 3.c

I think d because a broadcaster uses a microphone

sorry, didn't mean to post twice lol computer glitched XD

paired test hard

Please can someone help?

i think that 1. They could trade the things they dig, find and then sell it. 2. They could make materials from the trees they find, etc., and sell them.

thx, but what about the land?

4x+2=3x+9 Move 3x to the other side so it will become -3x ( 4x-3x) same with the constant number ( 9-2) . Just combine the constant and the number that has coefficient. Solution: 4x+2= 3x+9 4x-3x=9-2 X=7

I ended up with the wrong answer can I ask what I did wrong? So I got the dHrxn which I found to be -1,679.54 I then determined the limited reagent was indeed F2 and that it produced .1 mol of CF4 I then divided -1,679.54 by .1 to get -16,795.4 and conver...

Thank you I ended up solving it right after I posted this. I wasn't factoring in the mas of the rod.

This is still not correct. I do not know what I am doing wrong

14. D 15. B 16. D 17. A 18. A 19. C 20. D

so 14-17 is wrong ?? and if so can you help me because i did read my book i mean read i couldn't find it and i am a A an B Enroll student so can you please help I need help.

i know 16 is A and is 14 B or A

is the answer A

Charge Q = 233 C Time t = 1.25 minutes = 1.25*60 = 75 sec Formula for Current I = Q/t I = 233 / 75 = 3.107 A The amount of current that was used is 3.107 A.

Length of current carrying wire l = 0.504 m Current through wire i = 62.1 A Consider perpendicular external magnetic field with magnitude 0.203 T.[ Not given in problem , so we considered ] External magnetic field is perpendicular θ = 90º Magnetic field o...

Charge Q = 25.1 C Time t = 6.49x10-3 sec Formula for Current I = Q/t I = 25.1 / (6.49x10-3) = 3.867 x 103 A The current during this lightning strike is 3.867 x 103 A.

help please... im so stuck.. i need help...quickly

so how many large cupcakes would that be?

it would be 62... for the people looking for the answer.. your welcome.. i care

i think its france (several other sources say france)