Answers by visitors named: dave

dude, this problem is impossible

thanks but i'm still lost...

wait, i mistyped. it should be: if f(x) = x^2 - 2x, find f(x+2) - f(2) / x divided by x, not 2. sorry...

well i redid it and i got this: = x^2 + 4x + 4 - 2x - 4 - 2^2 - 4 / 2 = x^2 + 2x / x divide the x and i get "x+2" is it correct??

It takes someone with a really big heart to give to our charity, and you seem like someone who cares more than most

i need question 9 and 11 also volcanoes is 4 and tsunami is 12

how do you solve linears

I can not believe the amount of errors on this page with spelling etc. There is no problems getting jobs as long as you know your stuff. People usually gripe about the school because they cant handle not having a teacher around. If you are self-paced and do not need constant attention then the school is good for you.

Le gouvernement a décidé de programmer à nouveau ces spots sur les chaînes de radio et télé, accompagnés d'autres recommedations.

thankyou

a 5 b 3 c 7 d 38

i want to know what is the common place this element is found in

thank you very much.. i understand what you are saying, but can you show me the algebra steps to get the 2 solutions? i keep substituting the first equation into the second and try to work it out, but for some reason i am still doing it wrong.

my variables are a little different than yours, but here is what i have.. Yf=Vosinθ (tf)-.5g(tf)² Yf=Vosinθ(xf)/Vocosθ-.5g(xf/Vocosθ)² i'm having trouble isolating Vo. am i supposed to use the quadratic equation? my algebra is not very good.. so if you can point me in the right direction it would help alot.

ahhh i finally got it!!! thank you so much!

yes.. it's the "brothers of mercy" problem. a plane is flying at 40 m/s, descending at an angle of 37 degrees to the horizontal. it is 100 m in the air and it is trying to drop a package to a man at R distance. what is R? to find R, i needed to solve for time. that's where the quadratic came from

How did the views of the Whigs and Democrats differ from those in the Free-soil Party?

how do i mutipli fractoins

Thank you Reiny. I see where I was making my mistake. I was multiplying 1/2*2 and 1/2*-6. instead of 2-6 then multiplying 1/2. Thank you for your help.

Yes. Please!

No need to shout Jen. I misunderstood her question. I would like help finding an article that is peer reviewed that pertains to my original question. I have searched my university's library and cannot find any related articles.

That weird symbol was supposed to be quantum number l.

chameleon,

*******Prove that AM/BM = MC/MD

thank you

factors

I should have given more info. I figured that I would use the H-H equation and the total conc., but what I don't get is why do I need two pka's. I can get to the mass easily, but it seems that I could use either pka=7.21 or 12.67 with the base +acid =.1M.

(1)acid+base=.1M potassium dibasic phosphate: 7=12.67 + log(base/acid) (base/acid)=2.138x10^-6 subst. in (1) base+base/2.138x10^-6=.1 solving base=2.13x10^-7M Mass of base=2.13x10^-7 x (174.18g)=3.71x10^-5g Now I can find the mass of the acid as well by substituting for the base, but how do I make use of kpa = 7.21, why do I need it?

actually the other guy has it right except that he has sin instead of cosine

correct. can be written as just 9s^2 - 4d^2

let x be ttl $ spent (2.75 * days) y=110-x

You have two problems here. 1. need D:f(x) = 2sqrtx 2. subsitute x=4 into derivative D: 2sqrtx : a) multiply power times coefficient; 1/2 * 2 = 1 b)power - 1 = 1/2 -1 = -1/2 c. f'(x) = x^-1/2 or 1/sqrtx substitute 4 for x and you should be there

an infinity of shapes can have two right angles provided they have more than three sides and the sum of the inside facing angles minus the sum of the outside facing angles equals 180 degrees.

h*c/lambda would this be planck's constant times speed of light / wavelength?

yup

y-(-4)= 5/2(x-3)-b this should be slope intercept FORM of what you wrote.

ahh, of course, thank you.

1 * 10^-3 = .001 1 * 10^-4 = .0001 1 * 10^-5 = .00001 Get the Idea?

The experiment was not 'double blind" because the same person who compared the test scores (the professor) was aware of the reason for the experiment. If the groups were aware of the reason for them playing the games (possible affect on test scores) this would be another potential bias.

The additive inverse is the # which when added to a number equals zero. interesting questions. If you consider 12 on the clock to be '0", the -3 would have 3 as an "AI". If you consider the number you are starting from to be "0" then = or - 12 would always give the number back to you. Q #2 might hold the answer because of the choices given. The only number that is 22 hours away form 12 is 2. I would consider using 12 as zero for the other questions as well.

for every increase of 1 in x, y decreeases by 3 this gives us 3x y=0=23 so, y=23-3x

do a search for maps of the world / lat /long

replace n with inf. 1 + (-1^0/0) = 1 +(-1^0) = 1+1= 2

equal, opposite

The additive inverse is the # which when added to a number equals zero. If you consider 12 on the clock to be '0", the -3 and 9 would both have 3 as an "AI"

check out law of cosines

I would shy away from first person unless specifically to write from that perspective.

if two sides must be parallel then the fourth side is also 3.5 cm add the sides = perimeter

1km = 1000 m 100cm = 1 m convert to meters and divide

hi, don't know the answer, i didn't even go to college.... i am trying to invent a device that will aid in handicapped sports... i am trying to load a spring with the least amount of energy and compound it into the highest kinetic force i can.. only thing loading this spring will be a HC person. For instance when leaning left the left spring is loaded as the right spring is extended, then leaning right the opposite occurs.. sorry to bug you

Okay, dude your velocities are ridiculous, does 150 m/s even make ANY sense to you?

P= r - c p= (5000-30x)(80+x)-300x p'= -60x + 2300 x = 38.3 therefore 38.3 * 30 = 1150 per person

boats ships???

A COW???

A figure skater is warming up on the rink. She does a lap of a 100m rink. She completes the laps in 3 minutes. What was her speed? Answer a. 33.3 m/min b. 300 m/min c. 66.7 m/min my answer b. ?????

small parts of wild plants

the incompetent bullfighter was by gordan bluddy.

533.0666 kj

Part / whole =percent. 24/120=.20=20% 36/120=.30=30% 54/120=.45=45% 6/120=.05=5%

I got it. 3.75^(1/64)=1.020867172-1=.02086712*4= 0.08346868=8% this is on the TI84 Calculator

argument

1.74 m/s

Review the annual reports for PepsiCo, Inc. and The Coca-Cola Company in Appendixes A & B, especially the Consolidated Statements of Income and the Balance Sheets on pp. A4, A6, B1, & B2 of Financial Accounting.

The diameter of small Nerf balls manufactured at a factory in China is expected to be approximately normally distributed with a mean of 5.2 inches and a standard deviation of .08 inch. Suppose a random sample of 20 balls is selected. Find the interval that contains 87% of the sample means

yes

We can find that there are three topics that may generate high costs, which can make inefficient use of large-scale wind energy: - The purchase and set-up of wind turbines can be expensive - Wind turbines require certain constant speeds to be productive - Wind farms can't sustain constant power due to daily and seasonal variance in wind

ok does anyone know how to do this i need step by step help on this

farming

d.29

i got 88.6 degree celcius is it right?

A bag contains 4 purple, 3 blue and 2 red cubes. Select 3 cubes and stack on table next to the bag. What is probability of the cubes being red, purple then blue

delta Gf for NO(g) is 87.6 kJ/mol delta Gf for both O2 and N2 gas is zero

Delta Gf= -RT*ln(K) R is 8.314 T is 298

Running through I got the answer 1.97x10^-31 but it is telling me I am wrong.

Oh it sums up the heat? I thought it was delta G(products)-Delta G(reactants) wouldn't that then be 8*-228.6 + 6*-394.4-2*(-360.5)= giving you -3426.2 KJ/Mol. Could you explain why you made the 360.5 positive? Thanks.

I am doing this assignment for mastering chemistry and It just keeps telling me that it is wrong, I have no idea what the issue is.

do that thang

do it

A. diphtheria. B. deadly epidemics. C. heart disease. D. influenza.

djkaf

steve is .1 off but its 44.62

8. In Frost’s poem “Mending Wall,” the lines “I see him there, / Bringing a stone grasped firmly by the top / In each hand, like an old-stone savage armed” uses which poetic device?

riggle

a. .18

28356.4 ft

every one sucks at giving answers especially those blondes

Holy bals this is hard

depends on the sequence

9/10

0.49

the figure at right is a sguere. find an xepression for the area of the shaded region . write yuor answer in standard form.

write the expression for the perimeter of the pond

385

yolo

A dike in Holland springs a leak through a hole of area 0.80 cm2 at a depth of 1.2 m below the water surface. How much force must a boy apply to the hole with his thumb to stop the leak?

I cant find the exact answer from above 3 answers.

A hat contains 37 marbles. Of them, 14 are red and 23 are green. If one marble is randomly selected out of this hat, what is the probability that this marble is red?

3.73×104 g

1.0 ml