Wednesday

July 30, 2014

July 30, 2014

Total # Posts: 270

**math**

A piece of a broken wheel is shown. It was taken to a machine shop to be replaced with a new “whole” wheel. Find the radius of the wheel if AC=10cm, BD= 3cm, and D is the midpoint of AC. Round to the nearest hundredth. (note: keep in mind this circle/wheel is not bro...

**Math**

An organization is planning a dance. The band will cost $400 and advertising costs will be $100. Food will be supplied at $2 per person and tickets cost $6 per person. How many people will have to attend the dance if the organization want to profit $400?

**physics**

Given the atmospheric pressure is 10 5pa what is a gauge pressure of 0.55 mpa equal to?

**physics**

The mass of a vehicle is 4.25 tones concentrate 1.25 meters behind the front wheels what is the force required to jack up the rear wheels?

**Math**

In 1997, a typical American consumed 52 liters of bottled water, and in 2001, a typical American consumed 74 liters of bottled water. Let y be the number of liters of bottled water consumed by a typical American in the year x, where x = 0 represents the year 1997. (a) Which of...

**Math**

A group meeting is attended by 14 delegates. 9 of the delegates are from Atlantis and 5 of the delegates are from Zedonia. (a) In how many ways can the group choose 6 of the 14 delegates to form a negotiation panel? Show work. (b) In how many ways can the group choose 6 of the...

**physics**

A dust particle carrying a charge of is 2 mm to the left of another dust particle carrying a charge of . Find the magnitude and direction of the elec- tric force on the first particle.

**pre cal**

how did you get the nine after the A?

**pre cal**

where do i plug in thoes number

**pre cal**

the (-3,5) is the vertex how do i use that i am not completely understand

**pre cal**

how do you determine the the quadratic function if the problem gives you a graph with the line has points of (-3,5) and (0,-4)?

**Pre cal**

how do you find A?

**Pre cal**

how would you find the answere if they give you a graph with two points like (-3,5) and (0-4)

**Pre cal**

thank you so much but i am still not understanding how you got that

**Pre cal**

second

**Pre cal**

determine the function f whose graph is given the vertex is (3,-13) and the y intercept is -4 how whould i work this out

**math---help! connections academy! check my answers**

Yes they are! :D

**math---help! connections academy! check my answers**

this you get all this question right?! im in the same quick check!

**SCIENCE 1 QUESTION PLS HELP ASAP**

Did you get the right answer?! i have to answer the same question and i dont know it!

**computer applications**

Microsoft word graded project lesson number...038189

**English composition**

List two specific,concrete original details for each sense that describing that particular testing event

**PFN2**

upon retirement in 20 years Simon plans to invest $400,000 in a fund that earns 5%, what is the maximum annual withdrawal he can make over the following 15 years?

**finacne**

cYou think that in 15 years it will cost $214,000 to provide your child with a 4-year college education. Will you have enough if you take $75,000 today and invest it for the next 15 years at 5%? d. If you can earn 5%, how much will you have to save each year if you want to ret...

**Finance**

If the average new house cost $210,000 today, how much will it cost in 10 years if the price increased by 5% each year

**physics**

008 (part 1 of 5) 10.0 points A wheel makes 72 revolutions in 2 seconds. What is the angular velocity of the wheel? Answer in units of cycles/s

**algebra**

ok! I really don't know how to do a problem to come up with the unknown

**algebra**

I am having trouble figuring out how to identify the unknown number

**physics**

runner goes from a standstill to a speed of 7.9 m/s in 14s. what is the acceleration of the runner?

**physics**

A car starts 200 m west of the town square and moves with a constant velocity of 15 m/s toward the east. a.Write the equation that represents the motion of the car. b.Where will the car be 10 minutes later? c.When will the car reach the town square?

**Angular momentum**

What is the angular momentum if the force is 72 N, the time is 1.5seconds and the lever arm is 3.2 meters?

**Chemistry**

A mixture is prepared by adding 0.25 L of 2.5 x 10^-3 M MgCl2 (aq) to 0.20 L of 0.010 M H2CO3 (aq). Does a precipitate form when the two solutions mix?

**english**

What is the error in the sentence? Try and find a suitable replacement for the discontinued model.

**Chemistry**

Determine the boiling point(bp)of 0.44 m Naphthalene, C10H8, in Benzene, C6H6. kb(C6H6)=2.53, bp(C6H6)=80.1

**math**

sue had $5.65 worth of quarters and dimes. she had 3 more quarters than she had dimes. how many quarters does she have? how many dimes does she have?

**Chemistry**

How many grams of acetic acid must be dissolved to produce 3875 ml with a Ph of 2.9?

**Physic**

A lamp filament is made of tungsten. Why do we get a continuous spectrum rather than a tungsten line spectrum when light from an incandescent lamp is viewed with a spectroscope?

**Chemistry**

If the osmotic pressure of urea (CH4N20) in water is measured at 0.0259 atm at 25 degress C what is the molartiy of the urea solution?

**Science**

The fictitious compound, arrhenium fluoride (AhF), reacts with itself to form a dimer with the formula Ah2F2. The reaction is second order in AhF. The value of the rate constant is 1.091×10−3 M−1s−1. What is the initial rate of reaction in a reactor fil...

**Physics**

An automobile of mass 2000 kg is driven into a brick wall in a safety test. The bumper behaves like a Hooke’s-law spring. It has an effective spring constant of 5 × 106 N/m, and is observed to compress a distance of 8.7 cm as the car is brought to rest. What was the...

**Physics!!!**

Question: A(n) 3.17 m long pendulum is released from rest when the support string is at an angle of 38.6 degrees with the vertical. The acceleration of gravity is 9.8 m/s2 . What is the speed of the bob at the bottom of the swing? Answer in units of m/s What I did: y=3.17...

**math**

suppose the number of girls in class is x then, the number of boys is x+9 x+(x+9)=25

**College math**

2πR*(42/360) R=radius

**Statistics - math**

1-(3/4)^15-C(15,1)(1/4)(3/4)^14 -C(15,2)(1/4)^2(3/4)^13

**math**

Give answer in factored form. (5x)/(x^2-81) times (x+9)/(25x) I got 5x(x+9)(x-9)...?

**Chemistry**

How many grams of CO are needed to react with an excess of Fe2O3 to produce 209.7gFe? Fe2O3(s) + 3CO(g) => 3CO2(g) + 2Fe(s)

**Basic college math**

A rectangular kennel measures 26 1/2 feet by 20 1/4 feet. Find the area of the kennel in square feet.

**law of torts**

In order to prove that a product is unreasonably dangerous, a plaintiff's lawyer may: Hire an expert. Analyze the product warning. Demonstrate the product for the jury. Talk to other users of the product. All of the above. all the above? or hire an expert? not 100%sure

**law of torts**

If a manufacturer made 100,000 hair dryers and only one was defective, he could: a) Still be liable for the one defective hair dryer. b) Ask the court for punitive damages. c) Ask the court for exemplary damages. d) b and c. e) None of the above. I would think a?

**Tort law**

Product liability standards can be found in: a) The Restatement of Torts. b) Attorney notes. c) Court opinions. d) a and c. e) None of the above a?

**introduction to law of torts**

What would be considered an attractive nuisance in the law of torts? a) A pretty girl at the mall. b) A pool without a fence. c) A toxic waste dump. d) a and c. e) None of the above. b?

**Math**

Write a list of 5 numbers that have a median of 71,300.

**math**

At a fair malina ays a game in which she tosse a coin and then spins a spinner that has 5 different colors.How Many possible outcomes are there for malina?

**math**

At a fair malina ays a game in which she tosse a coin and then spins a spinner that has 5 different colors.How Many possible outcomes are there for malina?

**math**

Yes left pocket because it has 1 more quarter than the right.

**statistics**

Suppose that people's heights (in centimeters) are normally distributed, with a mean of 165 and a standard deviation of 6. We find the heights of 80 people. (a) How many would you expect to be between 158 and 172 cm tall?

**physics**

A car traveling at 37 m/s breaks to a stop in 6.0 m and 3.5 s. What was the car’s acceleration?

**geometry**

An oval indoor running track with semicircular ends has the dimensions of 80' long, 34' wide, and the individual lane width is 5' wide. If the track is to be resurfaced how many square feet of material will be required? Help Please!

**algebra**

a ball is thrown straight up into the air with an initial velocity of 128 ft/sec, the total amount of time in seconds that it takes the object to return to the earth can be calculated by using the quadratic, 128t-16t^2=0. Determine the "flight time," t, of the ball.

**history**

According to the Constitution, the _________ government(s) has most of the power to regulate elections. national local interstate state state?

**history**

The power of judicial review is found in Article I of the Constitution true or false true?

**Chemistry**

Thank you for your help!

**Chemistry**

At 20 degrees C ethanol has a density of 0.789 g/ml and H2O has a density of 1.0 g/ml. What is the % by volume of ethanol of a solution made by adding 50g of ethanol with 50g of H2O? Tutor Answer: Use density = mass x volume to convert 50 g ethanol to volume and to convert 50....

**Chemistry**

i thought that density = m/v? i've done the math and i think you are right because based on the above formula my answer is 126.74% However, i don't understand why if the density formula is as you stated? 1/50 = .02, 1/.789 = .01578 (0.01578/0.02) x 100 = 78.9%

**Chemistry**

At 20 degrees C ethanol has a density of 0.789 g/ml and H2O has a density of 1.0 g/ml. What is the % by volume of ethanol of a solution made by adding 50g of ethanol with 50g of H2O?

**gov.**

Presidents can circumvent checks upon themselves in all of the following ways EXCEPT executive privilege. executive statements. executive agreements. executive orders. I have no idea, I can't find it in my book. the first one?

**government**

The Federal Administrative System's main goal is to ________________________. implement the laws that are passed by Congress and signed into law by the President be as independent as possible from the executive branch create a huge bureaucracy to ensure that government job...

**government-pos110**

Which of the following is true regarding U.S. Senators? A.Senators are elected to 2 year terms. B.Senators can approve executive agreements. C.Each state has two Senators. D.Senators must be 25 years old. d sounds famaliar

**government-pos110**

The political system in which those who have governmental authority get and retain authority directly or indirectly because of winning free elections is called: A.a republic. B.an authoritarian system. C.a direct democracy. D.a representative democracy. D?

**History**

How did the Indians flight against Andrew Jackson and the government

**Math**

Four friends contribute sums of money to a charitable organization in Haiti in the ratio of 2:3:5:8. If the largest amount comtributed is $18,500, calculate the total amount contributed by the four people.

**Chemistry**

Zn + I2 ---> Zn ^+2 + 2I- will this reaction occur spontaneously?

**chemistry 12**

Calculate [H3O+] and [OH-] in 0.18M hyrdobromic acid, HOBr(aq) having, Ka of 2.0 x 10^-9

**chemistry 12**

sketch a ph curve for the titration 40.00 mLof 0.100M hyrazine H2NNH2(aq) having a Kb of 3.0 x 10^-6 by 0.100 M HCIO4(aq)

**chemistry 12**

Calculate [H3O^-] in a 0.15M solution of benzoic acid, HC7H5O2(aq) having a Ka of 6.4 x 10^-5 I got. 6.4x10^-5=(x)(x)/0.15 6.4x10^-5= x^2/0.15 6.4x10^-5 x 0.15 = x^2 square root of 9.6x10^-6 = square root of x^2 x= 0.003098 The pH solution is -log [0.003098] = 2.50 b.) Calcula...

**chemistry 12**

Identify the two conjugate acid-base pairs in each of the following. a.) H2PO4-(aq)+HSO4-(aq) <=> H2PO4(aq)+ SO4^-2(aq) b.) HI(aq)+ CN-(aq)<==>HCN-(aq)+ I-(aq)

**Chemisrty**

How many milliliters of a 2.0M NaOH solution are needed to neutralize 20.0 ml of a 2.5M CH3COOH solution? How do I begin to figure this out?

**math**

A movie theater runs two films continuously. One film runs for 85 minutes and a second film runs for 100 minutes. Both movies begin at noon. When will the two films start again at the same time?

**calculus**

Damon, so what you did was apply the quotient rule to the ax part? Wouldn't the -8 be -8x then? And if I'm doing it right, would my final equation be this? 0=(5x^4+10x^3+x^2+4x+4)/(x^2+x+2)^2

**calculus**

f(x)=8/(x^2+x+2) Set up an equation, which when solved will give the points where the tangent line has y-intercept 5.

**statistics**

The following gives the height of 100 men in centimeters. 153 162 168 154 151 168 162 153 161 167 157 154 165 156 163 165 160 171 170 173 164 158 163 155 167 162 168 153 161 166 163 162 163 163 163 164 165 163 162 162 163 161 162 162 158 162 167 158 169 168 168 156 160 158 169...

**MATH**

Can someone please HELP me figure this out? According to statistics gathered as part of a research project by a group of statistics students on the college campus, 376 out of the 439 deaths attributed to lightning strikes were male. If all of the names of the deceased were pla...

** please help **

The Everton college store paid $1859 for an order of 49 calculators. The store paid $11 each for scietific calculators. The others, all graphing calculators, cost the store $55 eaach. How many of each type of calculator ws ordered? Please answer in detail so that I can see wha...

**Math**

Simplify the following expression; express in terms of i. squareroot -44 (My answer was 8i and I don't think that is right) Thanks A bunch

**Algebra 2**

no numbers left out

**Algebra 2**

write a quadratic equation in the variable x having the given numbers as solution. Type the equation in standard form, ax^2+bx+c=0 solution 4, only solution

**Algebra 2**

The number of tickets sold each day for an upcoming performance of Handel's Messiah is given..........? by N(x)=-0.3x^2+8.4x+10, where x is the number of days since the concert was first announced. When will daily tickets sales peak and how many tickets will be sold that d...

**chemistry**

how much heat would it take to raise the temperature of 52.0 grams of water from 22.0 degrees celcius to 100.0 degrees celcius

**Algebra**

what's the square root of 7/25? How do I figure it out? I don't think I can simplify the 7, but the 25 becomes a 5? but it wouldn't be 7/5?

**litature**

In your post, summarize the major similarities and differences between the forms of drama, poetry, and the short story. Demonstrate your ideas with textual examples from the course readings. In your response, include at least one example of each literary form. If you wish, you...

**Square root**

324w^9x^8/48w^5x^5

**Reaearch - URGENT PLZ HELP**

Bibliography Primary Source Siegalbaum, Lewis and Sokolov, Andrei. Stalinism as a Way of Life: A Narrative in Documents. New Haven: Yale University Press, 2000.

**Reaearch - URGENT PLZ HELP**

Have you checked your schools library?

**Algebra**

Total revenue is the total amount of money taken in by a business. An appliance firm determines that when is sells x washing machines, the total revenue, R, in dollars, is given by the polynomial R=252.05x-0.5x^2 what is the total revenue from the sale of 290 washing machines?

**math**

(4,-1)

**MATH 6TH GRAD**

-3x^2-11x

**Algebra**

This equation is incorrect because when we multiply an exponent into a bracket we multiply it with the exponents of the terms inside the bracket. The correct equation should be: (xy)^3 = x^3y^3

**math**

i believe the answer is 290.4 pounds? if someone would like to back me up on this answer thatd be great

**math**

a company bought 50lb of kona beans at $34.95 per lb. and plans to mix these with colombian beans at $7.99 per lb. wholesale. If they want the blend to be $11.95 per lb, how many lbs of colombian beans should they buy?

**math**

8.33 x 10 to the negative power 46

**Math**

m=2,4,6,8 and n=18,16,14,12 what is the equation for m and n