# Posts by mikey

Total # Posts: 138

prealgebra

prealgebra

prealgebra

Williamson Reaction- CHEM
What would be the fate of any unreacted NaOEt reactant, ie. where does it end up, would it be a contaminant in the crude product or would it be removed, if so how (williamson reaction)

prealgebra
can you explain or show the steps

prealgebra
no it didn't help. can you do more

prealgebra
how do I write the first five recursively defined sequence of this problem a(n)=-2?please help and explain with steps

pre algebra
i need to write the first five

pre algebra
problem 2 and problem 3 is to write the first terms of the explicitly defined sequences. problem 2: a(n)=4n+2. and problem 3: a(n)=2(-3)n-1.

pre algebra
Reiny can you please help with these 3 problem. 1. a1=-4;an-1-3 this is find the first five terms of the recursively defined sequence. Problem 2 and 3 is write the first terms of the explicitly defined sequence an=4n+2. problem 3 an=2(-3)n-1

prealgebra
Reiny i did look at your similar answer but i still dont understand please explain the step

prealgebra

prealgebra
please help me to find the first five terms of the recursively defined sequence of this problem with steps, a1=3;an=6an-1.

pre algebra
what is the first five terms of the the following recursively defined sequence with the steps please. a=1;=3a

pre-algebra
please let me knoe if this is correct 55/55 + > 440/5 t=8. is it written correctly please show me if not thats where my problem comes

pre-algebra
can you please show me the steps for this word problem? in need to write the inequality and solve. how long will Kenzie drive if she averages 55mph and wants to complete at least 440 mi. of her trip?

pre-algebra
how is this problem solved? would love to know

pre-algebra
please help to write the inequality for this problem. the difference between a number and 10 is at most 27.

prealgebra
a junior basketball player has a goal of scoring at 1,000 points during his high-school career. his team plays twenty games per year, after two years he has 320 points. to be successful, how many points does he have to average per game over his last two years? Need to know how...

pre-algebra
please show me steps for writing the inequality

pre-algebra
can you please show me the steps

pre-algebra
thanks Ms.Sue i have that answer but im having problems with writing the inequality

pre-algebra
can someone please help me to writ an inequality for this wor problem? Mr.Kirkland receives \$13/hr. for regular time (8hr./day) and double pay for working on holidays. He worked on Friday even though it was a holiday. If his week's pay was at least \$650, how many hours did...

prealgebra
can someone please help me to writ an inequality for this wor problem? Mr.Kirkland receives \$13/hr. for regular time (8hr./day) and double pay for working on holidays. He worked on Friday even though it was a holiday. If his week's pay was at least \$650, how many hours did...

University physiology
Most tissues regulated by the autonomic nervous system recieve both sympathetic and parasympathetic input from postganglionic neurons. The responses are typically local, in contrast the adrenal medulla recieves input only from the sympathetic division, yet responses are ...

prealgebra
how dont understand how you got that answer can you please explain

prealgebra
x=the lenght 2x+2(8)=ft 2x+16=8ft 2x+18-18-18=18-8 2x/2=10/2 x=10

prealgebra
how many 6in. fence slate are required to make an 8ft. long sctione of privacy fence? still need to writ anequation and solve with the variable

prealgebra
yes thats what i put on paper thanks. i maybe back very soon

prealgebra
s= number sold 65-18=n 65-18 n=47

prealgebra
a stock inventory of an item was 65 monday morning. at the close of business on friday, the inventory level was 18. how many were sold during the week. what wouldthe variable stand for and whats the equation and solve

prealgebra
please help to specify what the variable stand for, write a equation and solve for this word problem. if ben buys 24 items at \$3 each, how much change will he receive from a \$100 bill?

rf and elution
from a group of samples tested, is it true that the highest rf is the first the be eluted? If so, why is that?

organic chem, crude mix
so, the compound with 0.55 rf elutes first? but why is that?

organic chem, crude mix
how do i know if the flex column in TLC successfully separated the three crude compounds(which were experimented and had rf values of , 0,0.5 and 0.55) in the crude mixture. Also which compound elutes first? And what is the reason for it to elute first?

rf factor and compounds
what does low and high rf factor mean, in compound polarity of its functional groups? Does having a certain kind of functional group increase rf factor, and some decrease? Can someone explain this to me please, with an example. Thank you :)

organic chemistry -urgent
i think if the colour didnt change then its pure, and if colours changed a lot then its mixture.. im not sure though. You will have to wait for drbob

pre algebra
find a variable and writing and equation and solve. the hoe team scored 80 points and won by 19. How many points did the opposing team make?

Calculus
Knowing that F(-2) = -7, F'(-2)= 12, g(-2)= -3 and g'(-2)= -9, Compute: a) h'(-2) if h(x)= f(x)g(x) b) h'(-2) if h(x) = f(x) / g(x) c) h'(-2) if h(x) = g(x) / 1+(f(x))^2 Show all steps

social studies
Yes it did mention that in the book! I understand now, thank you very much for the help!

social studies
My second choice would probably be B, but I cannot say Im positive on that. My textbook did mention the French, English, and Spanish having different experiences from the "American Experience", but I do not believe that ties in with the question

social studies
Well, I got it from how the colony system that was set up, it put the english people in North America. Yeah now that i think about it, it doesn't make much sense.

social studies
How did Mercantilism contribute to the American Revolution? a. It created the means of cultural diffusion in the New World b. It made the colonies economically independent c.It brought together the French, English, and Spanish influences on one continent d. It increased the ...

Chemistry
How many grams of ice are needed to cool 250 ml of water from 75 degrees Celsius to 5 degrees Celsius? (m_ice * 6.01kJ) + (m_ice * 4.18J/g°C * (5-75°C) = -[250mL * 4.18J/g°C * (5-75°C)] ???

Chemistry
hahahaha... thank you so much scott

Chemistry
For the teaction system, 2SO2(g) + O2(g) <--> 2SO3(g), Kc has a value of 4.62 at 450.0K. A system, at equilibrium, has the following concentrations: [SO3] = 0.254 M, [O2] = .00855 M. What is the equilibrium concentration of SO2(g)? The correct answer is 1.28M, but I don...

Chemistry
The reaction 2NO (g) + 2H2 -> N2 (g) + 2H2O (g) was found to follow the rate law, rate = k[NO]^2[H2]. By what factor will the rate of reaction increase when the pressure of NO gas is increased from 2.0 atm to 3.0 atm? Assume all other conditions are held constant. I'm ...

Grammar
Ms. Sue In the sentence my English book is asking for the Subject first, Object second and the Verb last. I think I confused myself. Please recheck my answers. Subject: graduates Object: demonstrate Verb: skills

English
Identify the subject, object, and verb in this sentence. Online classes require good time-management skills. Please check my answers Subject: classes Verb: require object: skills

English

English
Identify the subject, object, and verb in this sentence. Online classes require good time-management skills.

Grammar
One quick question the subject is (you). Since you is not the the sentence is set changed to you.I appreciate your help understanding how this works. Thank you Ms.Sue

Grammar
I need to find a subject, verb and a object in this sentence. 1.Set a high value on spontaneous Kindness. Subject- verb- Object-

John, Thank you so much.

Sam serves a tennis ball at a speed of 90 miles per hour. If 0.62 mile is equivalent to 1 kilometer, what is Sam's serve speed in kilometers per hour? Round your answer to the nearest hundredth.

chemistry
i tried 37.5 for 2 it was wrong.

chemistry
I know everyone guessed i had a few more i couldn't do. Sorry but assistance please: 1.Sucralfate (molecular weight: 2087g/mol) is a major component of Carafate® which is prescribed for the treatment of gastrointestinal ulcers. The recommended dose for a duodenal ulcer...

chem
on 3. my calculator gives me a crzy answer, 6.25e-4 this cant be right, can it

Health
Katie is correct :)

MATH
150cm 100cm=1m 900cm=9m 900cm-750cm=150cm

Algebra I
How would I find an absolute value inequality which x is less than or equal to 6 or x is greater than or equal to 10?

math

math
For the first question.. It's kinda hard to explain, but pull up a graph. um.. -5 would be on the x line, horizontal line. So would -4, and 0. So X always goes first. 2. I am pretty sure it would be IV, cause x is less than 0, so it would be in the negatives, same with y &...

Geology
Does anyone know where are Ontario's largest mineral deposits other than the ring of fire in the north? Thanks for the link Ms. Sue, still having trouble.

Geology
Hi i'm looking for some help finding information on the topic of "mineral deposits" - specifically; where are Ontario, Canada's largest ones, what are they & how did they form? I'm having trouble finding enough research on this topic for my paper so any ...

Number Sequences
Explain It. What do you need to do to extend a pattern?

Casey has 10 olives to eat. She wants to have the same number of olives at lunch and at dinner. She wonders how many olives she should eat at each meal. Which number sentence fits this problem?

Math
Can someone give me the answers to pizzazz e-8 page

Calculus antiderivatives
find an antiderivative of the function ((t-1)^2)/sqrt(t) that goes through the point (1,2) i find derivative of top and bottom first and get 2t-2/(1/2*sqrt(t)) but this doesnt give right solution then i find diervative of that again and i get 2/(-1/4 * t^(-3/2)) what am i ...

intergrals
find value of def integral with a=-2 and b=2sqrt(3) definite integral is : x^3 * sqrt(x^2+4) dx for integral i get 1/15 *((4+x^2)^(3/2)) (-8+3x^2) for value i get [1536- 64sqrt(2)]/15 but its' wrong. help please

integral calculus
find indefinite integral [(sinx)^3]*[(cosx)^3] dx i got 1/192 * ((cos(6x)-9cos(2x)) + C but this isnt right. explain plz? thnx

integrals
find value of def integral with a=-2 and b=2sqrt(3) for integral i get 1/15 *((4+x^2)^(3/2)) (-8+3x^2) for value i get [1536- 64sqrt(2)]/15 but its' wrong. help please

def integrals
find value of def integral with a=-2 and b=2sqrt(3) for integral i get 1/15 *((4+x^2)^(3/2)) (-8+3x^2) for value i get [1536- 64sqrt(2)]/15 but its' wrong. help please

Integral
find indefinite integral [(sinx)^3]*[(cosx)^3] dx i got 1/192 * ((cos(6x)-9cos(2x)) + C but this isnt right. explain plz? thnx

a=1 b=0.20 c=-3 0.20 = x^2/(15-x) ((15-x))0.20 = (x^2/(15-x))((15-x)) (15-x)0.20 = x^2 (-3)3-0.20x = x^2(-3) (+0.20x)-0.20x = x^2-3(+0.20x) 0 = 1x^2+0.20x-3

trigonometry
Simplify and write in standard form. 1.) (radical 3 + i radical 15)(radical 3 - i radical 15) 2.) 8 + 16i / 2i Thanks again everyone. Any help is appreciated.

trigonometry
1) Perform the operation and leave the result in trig. form. [3/4(cos pi/3 + i sin pi/3)][4(cos 3pi/4 + i sin 3pi/4)] Thanks

trigonometry
1)Solve and write in standard form: 4x^2-4x+21=0 2)Find the standard form of the complex number. 8(cos pi/2 + i sin pi/2) Thanks everyone!

Physics [No Math]
When calculating weights away from Earth's surface, for example: At 6.38x10^3 km away from Earth's surface a spacecrafts weight is d=rE+rE Then F=(1/4)(SpaceCraftWeight) Why is the distance 2rE?

trigonometry

trigonometry
A plane is headed due west with an air speed of 300 mph. The wind is from the north at 80 mph. Find the bearing for the course and the ground speed of the plane.

trigonometry
Find the magnitude of the resultant force and the angle between the resultant and each force: Forces of 2 lbs and 12 lbs at an angle of 60 degrees to each other.

calculus
vbr{lr<5vvx><f(nn)/.bbn> vbr<lr><5.12>(9.8)^3 .bbn=%ff %ff=F(9x) .bbn=%ff9x .bbn=.133%tri .bbn=.tri t.ri=vbr v=161.2 b=39.1 r=12.7 Sub in values of vbr

Physics
^^^Wrong! 10c-<0.06>=f(n)(l1/l3+l2/l4) uf=f(x)_ln<1.962> fx/%fl %fl=1.333 2C-<0.09>=f(1.33) ANS:___?

Physics
Solve: vbr{lr<5vvx><f(nn)/.bbn> vbr<lr><5.12>(9.8)^3 .bbn=%ff %ff=F(9x) .bbn=%ff9x .bbn=.133%tri .bbn=.tri t.ri=vbr v=31.4 b=59.3 r=28.6 KE___?

Physics HARD
Thank you!!! Why is t.ri = vbr and not just tri?

Physics HARD
If an objects vbr is 6.32N/sc what is its mass? I'm so stuck...:((((

Math
How can you use rounding to estimate 331 + 193?

math
If alpha= 33.5degrees, a=7.4, and b=10.6, then what is beta to the nearest tenth of a degree.

math
(rewrite of prev question) If alpha=8degrees, beta=121degrees and c=12 then what is Y?

math
If a=8degrees, b=121degrees and c=12 units, then what is Y?

arithmetic
I am greater than 200 but less than 500. The sum of my digits is 18. the product of my tens place digit and my 100's place digit equal 20. What digit am I ???

trigonometry
sinxcosx/cos^2x-sin^2x=tanx/1-tan^2x

trigonometry
verify the identity: (cosx/1+sinx) + (1+sinx/cosx) = 2secx

hcs588
What key measurments tools would you use to measure quality outcomes such as a reduction in patient falls, medication errors, complication rates? Why?

Quantitative Chemistry
Ashley, thank you. I'd been working on this problem for hours. God bless you

Chemistry
A 350 ml of gas at 1.25 atm and 298 K is heated to 343 K an the volume increased to 750.0ml. What is te new pressure?

Mathematics