W

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

Questions

The following questions were asked by visitors named W.

I need some help with this question. (5/x-2) = (6/x+6) + {29/(x-2)(x+6)} I don't know how to solve this. Can someone help me figure this out? Thanks.

2 B5H9(l)+12 O2(g)---->5 B2O3(s)+9 H2O(l) Calculate the kilojoules of heat released per gram (kJ/g) of the compound reacted with oxygen. The standard enthalpy of formations of B5H9(l), B2O3(s), and H2O(l) are 42.84, -1271.94, and -285.83 kJ/mol, respectiv...

What is the immediate cause of WWII? Is it Germany's invasion of Poland? I can't remember.

The point (1,-2) is on the graph of y^2-x^2+2x=5. Find the value of (dy/dx) and (d^2y/dx^2) at the point (1,-2). How do I find (d^2y/dx^2)? I found. I found (dy/dx) to be 2y(dy/dx)-2x+2=0, but I don't know how to take the derivative of that to get(d^2y/dx...

How do I determine the area of a region bounded by a function and the x-axis if given y=cosx and interval is [0,ð/2]. This has to do with the Fundamental Theorem of Calculus. Thanks in advance!

How do I find the length of curve f(x)=3x^2-2x+3 on the interval [1,4]? I have no idea on how to start this. Anyways, thanks in advance!

How do I integrate (e^(3/x))/(x^2) from 1 to 3. I understand how and why I need to do u-substitution, with u=3/x and so dx=(-3 du)/x^2. After plugging (-3 du)/x^2 in for dx, I get a really messy problem that I don't know how to finish. Can you please expl...

I am having trouble differentiating x^2 + 2lny = y (solving for dy/dx). I know that I need to do implicit differentiation, but the answer I get is not correct. The answer I got was (2x-2xy)/2, but the answer is (2xy)/(y-2). How do I do this problem?

If 3x^2-2y^2=4xy + 20, find the point(s) at which the graph from Problem 28 has vertical tangents. I found that dy/dx= (3x-2y)/(2x+2y), but now I don't know what to do. Do I set dy/dx to 0?

How do I integrate x(arctanx) dx? Is it some sort of integration by parts? Can you please show steps? Thanks in advance!

Integrate dx/xlnx. What method am I supposed to use? I'm totally lost.

Integrate (1/2)sin(x^(1/2))dx. I've tried using u-substitution, with u=sin(x^(1/2)). du would then = ((1/2)x^(-1/2))(cos(x^(1/2))). As you can see, this only make the problem more complicated. I don't get what to do. Thank you in advance!

How do I find the limit of (1+sin(pi times x))^(1/x) as x approaches 0? I tried using wolframalpha, but am unable to understand their steps. My thinking is that you set y=the limit and use L'hopital's rule a couple times. The answer I got was y=e^0--->y=1...

A block of ice is exposed to heat in such a way that the block maintains a similar shape as it metls. The block of ice is initially 2' wide, 2 'high, and 3' long. If the change in the width of the ice is -1/3 ft/hr, find: the amount of time it will tak ef...

Write the first four nonzero terms and the general term of the Taylor serires for f about x=0. f(x)=2x/(1+x^2) I feel that I'm doing this wrong because finding the derivatives of f(x) look really messy. Can you please show me the steps? Thanks in advance!

Find a power series, centered @ x=0, for function f(x)=x/(1+2x). I know this is a maclaurin series, but my work doesn't get the right answer. Can you please show steps? Also,do all power series start with a 1, as in (1+2x+4x^2+...)? Thanks in advance!

Daily activity can boost academic performance true or false I am think t

Small muscle usually occurs before large muscle development think false

Sam, whose mass is 71.0 kg , takes off down a 51.0 m high, 11.0 ∘ slope on his jet-powered skis. The skis have a thrust of 210 N . Sam's speed at the bottom is 41.0 m/s .

Refers to breaking down complex skills into their component parts? A. Differentiation b. integration c. Motor skills d. Locomotion I am think b but am not sure if it right.

Which of the following is true of the cause and treatment of ADHD ? A. Drug therapy alone is not very effective in treating hyperactivity b. academic and social skills are best treated with a combination of medication and other treatment. C. Usually cause...

In a sample of 20 men, the mean height was 178 cm. In a sample of 30 women, the mean height was 164 cm. What was the mean height for both groups put together? The answer I got by adding the two means and dividing them by 2 is 171 but it is wrong, it must...

Sam and Sue are running side by side in a marathon. They are running at a constant velocity of 10 km h . What is Sue's relative velocity to Sam? A) 0 km/h B) 5 km/h C) 10 km/h D) 20 km/h

Which denotation best describes this group of words? hungry, eager, passionate full empty friendly enthusiastic

1. Consider the relationship between the height of a tree and time. Time would be considered which of the following? (1 point) function input function independent variable dependent variable there 19 for me and i need answears!!

In 100 mL of distilled water, 2 g of TlCl is added. What will be the excess mass of solid? In other words, how much of the 2 g of TlCl doesn't dissolve? The Ksp of TlCl is 3.6 x 10-6.

Solve the equation. Check your solution and show all your work. 24 1/2=t+5 1/4 How would I check my work?

What does it mean that a source of energy is nonrenewable? (1 point)

Has the question LLC page been updated

Find the circumference of circles with these given radii take π 22/7

Which of the following was the result of the battle of Spanish Amada?

Which of the following statements best summarizes the role of state courts? (1 point) State courts primarily deal with disputes that occur within the state and interpret state laws. State courts are responsible for making laws at the federal level. State...

Answers

The following answers were posted by visitors named W.

Well this must be a pretty common question because I had it too. The problem here is the Voy is Vo(SIN(23) not cos)/10.0 (or 9.8). Also because the Vfy is 0 in the middle of the jump used only use half the X for the horizontal component. This is how I got...

Thank you! Now I understand that I should've multiplied by y instead of moving the whole "2/y (dy/dx)" to the other side of the equation and then factor the dy/dx out. I can't believe how such a simple manuever can make the problem so much easier to solve...

thanks! that was really helpful ;)

very cool. Thanks, both of you! Does wolfram alpha give steps for all integration problems?

awesome! Thanks Damon ;D

Thank you! That was helpful :)

So fat and could glow

formulas for b and c anyone?

c = 0.00448571428571 d = 0.00897142857143 do you know lightly damped circuit or RC circuit

anyone get this

anyone get #6???

Small muscle usually occurs before large muscle. I am think false.

Okay can you please help me?

Thanks so for the help.

The second question b or c

Ann Onymous is right.

Decrease to one-ninth

♥️ Is correct I got a 5/5

Not nice answer

Not nice it is not correct answer please check it again

Thx for the answers

Two planes approach each other head-on. Each has a speed of 760 km/h k m / h , and they spot each other when they are initially 12.3 km k m apart.

straight at the leopard

LMAO NVM BOOIS AND GIRLS I THINK I GOT THIS

I see a lot of connection students here if y’all just read the assignment you wouldn’t have this problem with getting caught or getting all the answers wrong I believe that is karma. This is a homework helper not a homework cheater if ur gonna go looking...

@🦁 I agree with what you’re saying about try your best and then come back and correct your answers on here instead of just straight out coming on here and getting answers but for a lot of people including myself it’s hard for us not to do that because we...

I meant to say it is hard for us to do that

@🦁 I also see where you’re saying that if you make all A’s At home and then go to the state test and do horrible on it’s going to be fishy To the teachers and State.

??? is right i just did it and i got it right and Hi got the first question wrong it's true

E is correct thx

If two places on the ground that are located 5 degree North and 10 degree North are shown 10 cm apart on a given map what is the scale of the map

everyone mary isnt right at all. i suspect that MLA is lieing and is actually mary. theres also the possibility that they shifted around the answers, so make sure from now on to say the question answer instead of just doing a b a Dont do this: a b a Do th...

<3 is still correct

Amy is correct :)

Which of the following measures best demonstrates the Romans’ fear of officials gaining too much powers? * 1 point tradition of the Race of Honors use of togas limitis on time in office division of patricians and plebeians

Zero two best waifu change my mind

Please name the factors, what is happening in this scene and anything else about the setting. In ten parapghs. The musical tone now changed and I got closer than before, at length the stair went round one last time. I halted and found myself staring at a...

what else can be said/

name each charcter and a soemthign about them

Lastly describe everything in ordder of what happens in this scene

Name the factors, morales, and everythign els ein this scnee A knock was heard at Manny’s polished door, the fireplace was burning warmly, crackling with a sense of sweet warmth and awe. The door opened slightly and Atha stuck her head of long golden hair...

Name the factors, setting, scene, and charcters in the scene. In fifteen parapghs. A knock was heard at Manny’s polished door, the fireplace was burning warmly, crackling with a sense of sweet warmth and awe. The door opened slightly and Atha stuck her he...

Robot! Help me!

Name the factors in this scene, the setting and the characters. Ten paragprahs. I often had longed to be in that battle—the battle of Nolan. I had imagined and the reimagined myself there standing atop the wall, shouting orders in some daydreams, in other...

Describe the narrator's personilty in detail

But the city is not under seige,

Two brothers, Sam and Jim, were fighting over the division of their ancestral property. After ten years of legal battle, a frustrated Sam contacted a powerful politician who subjected Jim to extreme duress in order to make him sign a contract of assent in...

Name the factors of the following story, the setting, and various other things about it, “Then, the human race must indeed be great?” I asked uncertainty in my voice, I did not desire to offend Goliad, it might have sounded to him as if the gorilla race w...

arrange these in alphabetical order: Humans, nisses, dwarves, welfs, mountain trasnos, forest trasnos, winter trasnos, minotaur desert trasnos, twarves

Name the factors, morlaes, and other things in this: An unfillable hole—that was it. An unfillable hole was in me. I lay on the bank of the pond, as I awoke and the sun painted the sky in a dull rose color as it set in the west. An unfillable hole, Goliad...

what can have lead to Goliad's death, guess

name the setting, ten paragpash

name the setting give evidence of it, also descrbie the characters, in ten parapgahs,

who are the named charcaters?

What can be said about the name 'goliad'

What can be said about the narrator himself, explain in ten parapagsh.

Winds, air pressure, evaporation and the angle of the sun shape daily are of each place Climate Temperature Weather Precipitation

Is it a or what bro cause everyone is using the stupid ai thing in all the questions

Which of the following types of maps shows correct shapes and directions but distorts distances or sizes? (1 point) • Mercator projection • Robinson projection • Mollweide projection equal-area projection

Oh my god steven imbstukam

Soil is a thin layer of material that covers earth surface. How is soil related to bed rock? So your forms below the bed rock. Bed rock hard is the form soil. Bedrock is one of the four soil components. So your forms from the weathering of bed rock.

Shut the hell up ai