Monday

July 28, 2014

July 28, 2014

Total # Posts: 496

**Math**

Solve the equation by factoring, by finding square roots, or by using the quadratic formula. 3(x+4)^2= -27

**Help- Physics**

How much work did the movers do (horizontally) pushing a 130kg crate 10.1 m across a rough floor without acceleration, if the effective coefficient of friction was 0.50?

**World Geography**

What current events have gone on in Switzerland since September? I only need one and it only has to be vague.

**World Geography**

What websites will have information on Switerland Attractinos? I need to find 4 Attractions. A Religious, Cultural, Physical(Natural), and a Historical one.

**Geometry**

9d-d/5=88 c/2+11c=92 How do i solve for the variables d and c?

**Spanish**

ok you don't have to put A in front of everything or at least that is what i was taught as for the other words i'm not entirly sure.

**geometry**

the 2 triangles are congruent by the angle, angle, side theorem or aas. I am pretty positive that's the answer but you might want to double check just to make sure. Hope i could help you out :)

**Math-System of Equations**

1. Solve for x, y, z in the following system: 2x-3y-2=z y-x+z=1 -y-2z=7 The answers are: x=-7 y=-5 and z=-1 however I don't know how to go about this.

**Physics**

What is the acceleration experienced by the tip of the 1.5 cm-long sweep second hand on your wrist watch?

**Physics**

A bucket of mass 2.20 kg is whirled in a vertical circle of radius 1.40 m. At the lowest point of its motion the tension in the rope supporting the bucket is 30.0 N. Find the speed of the bucket. How fast must the bucket move at the top of the circle so that the rope does not ...

**history**

Who are green party political supporter?

**Geometry**

Sinve b is midpoint of ac then ab and ac are the same length. So, 6x+7 = 18x-4. Hope this helps.

**Math**

On July 5th six different people reported to the police that they had seen Bigfoot, the large hairy creature sometimes seen but never captured. The next day, twice as many people called the police; sure they had seen the creature. Each day the police received twice as many pho...

**Calc**

find F''(pi/3) f(x)= 4cos(x/2) i got -cos(pi/6) but i don't think that's the correct answer... Thanks!

**math**

What is the differnece in meaning between the notstions of a line over QR and not a line over QR?

**math**

What is the differnece in meaning between the notstions of a line over QR and not a line over QR?

**chemistry**

what does 9.54e-7+7.25e-4 equal?

**Chemistry**

Estimate the value of the equilibrium constant for the dissolution of LiF(s) in a strong acid

**Chemistry**

To 0.360 L of 0.140 M NH3 is added 0.150 L of 0.100 M MgOH2. How many grams of (NH4)2SO4 should be present to prevent precipitation of Mg(OH)2 (s)? THANK YOU!!!

**Chemistry**

Find the [OH-] of .196 M NaOH and .262 M NH4Cl

**Chem**

So do you add the 6.6E-3 and 1E-2 together as the value for Ba^2+?

**Chem**

6.6×10−3 M Ba(OH)2 and 1.00×10−2 M BaCl2 what is [OH-] of solution?

**chemistry**

Molybdenum (Mo) has a density of 10.22 g/cm3 and it crystalizes into a fcc unit cell, calculate the radius of a (Mo) atom?

**world issuse**

LUGGAGE

**Chemistry**

the concentration of HCl, a strong acid is 0.500 M. if 20.0 ml HCl is needed to titrate 40.0 ml of NaOH, what is the concentration of NaOH I don't understand how to do this. Can I see a step by step way of how to do this please

**Math**

Order of operstions

**Math**

-6 5/6 + 2 1/3

**chem**

What is being oxidized in each of the following reactions? (a) Sr(s) + F2(g) SrF2(s) F2 SrF2 Sr .(b) H2(g) + I2(g) 2 HI(g) H2 HI I2 .(c) 2 Li(s) + Pb2+(aq) 2 Li+(aq) + Pb(s) Pb2+ Li+ Pb Li thanks:) can you give an explanation. I know a is Sr but I don't get why. If it does...

**chemistry**

what solution of sugar in water has the highest molarity?

**chemistry**

what is the molarity of a solution containing 23g of NaCl in 500 mL of solution? (the molecular mass of NaCl is 58.44.)

**chemistry**

if you have 2 mol of glucose in 4L of solution, what is the molarity of the solution?

**chemistry**

if you have 100 ml each of 1.0 m solutions of NaCl,KCl, and CaCl2 which solution would have the largest mass? explain..

**LIfe orientation**

i think many communities will encounter due to substance of abuse

**Accounting**

If Grant House Furnishing accepted a ten month 8% interest rate, $3000 note from one of its customers on april 1, 2008. How much interest will Grant House Furnishing accrue for the month of April?

**Chem**

Thanks

**Chem**

An ethylene glycol solution contains 20.9 g of ethylene glycol (C2H6O2) in 85.0 mL of water. Compute the freezing point and boiling point of the solution. (Assume a density of 1.00 g/mL for water.) freezing point °C boiling point °C How would I set this up? thanks

**english**

what is the tone and diction in the poem Tableau by countee cullen

**Math**

In how many ways can two dice be rolled to yield a sum divisible by 3?

**history**

How is the New Deal a conservative defense of capitalism?

**history**

"Rather than a radical departure from capitalism, the New Deal was a conservative defense of capitalism." Assess the validity of this statement.

**history**

What is Johnson’s thesis regarding Sam, the Market Revolution, and antebellum American society in the book Sam Patch?

**history**

For whom and to what extent was the American West a land of opportunity from 1865 to 1890?

**Algebra II**

What does it mean when the domain of a function is (-‡,‡)? What about a range of,say, (2,‡)? (In case it doesn't come out right, that symbol is the infinity symbol).

**Chemistry**

20.2 mL of 0.234 M FeCl3 is added to 42.5 mL of 0.453 M NaOH. Iron(III) hydroxide precipitates. NaCl remains in aqueous solution. 1) What mass (in g) of Fe(OH)3 should precipitate (assuming 100% yield)? 2) How many moles of the excess reactant remain after the reaction is comp...

**math**

if i invested $1000.00 at 5% per year for the next 20years how much will i have

**math**

you invest 1000$ at an annual growth intrest rate of 5%.how much money will your investment be worth in 20years?

**math**

Maratha paid $42.40 for her sisters birthday present. this included 6% sales tax. What was the cost of the gift before tax?

**math **

64.675 = 64.68

**math **

video games are on sale for 35% off. if a particular game regulary sells for $99.50 what is the sale price

**math**

25%

**math**

find the percent of decrease from 280 to 210. round to the nearest tenth of percent if necessary

**math**

In a survey, 480 people or 75% said they attened a movie at least a month. how many people were surveyed? i dont get how to find the answer

**math**

Bob makes 5.5% commision selling eletronics. How much commission dose she make if she sells a flat-screen TV for %10,000? how would i solve this?

**math correct or not?**

1. 19 is what percent of 40 a. 19=n x 40;47.5% b. 40=19 x n;2.1% c. 40=19 x n;40.4% d. 19=n x 40;52.3% is it a? 2.64 is 80% of what? a.64 x n=80; 0.8 b.0.64 x n=80; 125 c.60= 0.80 x n;80 d.80=64 x n;1.3 is it c?

**math**

so 14.3%?

**math**

1/7 as a percent?

**math**

What is 35% of 63? a. n x 0.35 = 63;180 b. n= 35 x 0.63; 22.05 c. n= 35 x 63; 2,205 d. n= 0.35 x 63; 22.05 i thought it was b or d?

**math**

Two us states are not part of the contential us. What percent of the fiffty us states are included in the contential state? A.2% B 13% C.48% D 96% is it D?

**math**

9.9/6 = x/16 or how would i writea proportion for that?

**math**

i dont know its confuses me

**math**

At the store, 6 pencils sell for $.99. At this rate what is the cost of 16 pencils?

**math**

Write a proportion that can be used to find the cost of 10 notebooks if 3 notebooks cost $1.98

**Maths**

help me in math trish

**math**

The sale price of a coat is 40% off it's regualr price of $59.50. Which equation can be used to find s, the sale price of the coat? A. S= 59.50 - 59.50(0.40) B. S = 59.50 + 59.50(0.40) C. S= 59.50 - 59 50(0.60) D. S=59.50 + 59.50(0.60)

**math**

Write a proportiom to describe the situation the solve. Three cans of dogs food sell for 99 cents. Fine the cost of 15 cnas

**math**

find the unit rate.

**math**

A car travels 84 mi on 3 gal of gas how would I do this?

**math**

$230 would I have to put it in like proportion to like show my work?

**math**

how do I do it?

**math**

Loretta bought a new computer for $1849 a new printer for $159 and a new software for $289 incudeing tax. She plans to make equal payments of 10% of the total amount. What is a resonable amount for each payment? A. $20 B.$23 C.$23 D.$2100

**math**

A recipe calls for 6 1/2 cups of flour. You have 4 3/4 cupa. How much more flour do you need?

**math**

0.4245

**math**

Regular price: $8.49 percent ot discount 5%

**math**

percent*

**math**

percent*

**math**

Find the selling price Cost: $6 percebr of markup: 50%

**math**

selling*

**math**

how would I find the spelling cost?

**math**

Find the selling price. Cost: $6 percent of markup: 75% would the answer be $4.50 selling price?

**math**

1. Find the markup cost:$18 percent of markup: 35%

**math**

The population of Alaska was about 128,535. That was about 20.5% about how many people lived there? how would the proportion go? 20.5/100 = x/128535 or 20.5/100 = 128535/x?

**Math**

Mimi was 36 inches tall two years ago. If she is 17% taller this year, how tall is she. Round your answer to the nearest inch.

**math**

x/ 2 cm = 5 1/4 m/3 m

**math**

26% increase

**math**

from 87 to 108 would the answer be 26% decrease?

**math**

from 27 to 72 would the answer be 166.66666 = 166.7 increased?

**math**

would it be 18.8%

**math**

ok so how would I put it in a porportion and solve it?

**math**

Increase goes up and decrease goes down.

**math**

I think so. Wouldn't the answer be decreased?

**math**

it saysFind each percent of change. tell weather the change is an increase or decrease. Where necessary round to the nearest tenth of percent.

**math**

from 80 to 95 would it be 18.75 or negative 18.75??

**math**

wouldn't it be 26.1?

**math**

I thought I had to multiply 1.7 times 100 the divide that by 6.5

**math**

yes

**math**

from 6.5 to 4.8

**math**

A computer that cost $1,099 last year cost $999 this year. Would it be about 9 or 9.1?

**math**

I don't get it.

**math**

A computer that cost $1099 last year costs $9999 this yeat would it be 1099 from 9999 ?% of 1099 is 9999 right??

**math**

would it be decresed or increased from 96 to 78 n% or 96 is 18 how can I tell?

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