Tuesday

July 29, 2014

July 29, 2014

Total # Posts: 800

**Math**

A triangle is placed in a semicircle with a radius of 3cm, as shown below. Find the area of the shaded region. Use the value for 3.14, and do not round your answer. Be sure to include the correct unit in your answer.

**physics**

what is the velocity of a drop heigh for 50cm 70cm and 80cm thank you I am doing a project on craters

**Statistics**

The heights of male students in a given university are normally distributed, with a mean of 70 inches and a standard deviation of .5 inches. Find the height (x value) that corresponds to the z value of -1.33.

**Elementary Statistics**

A machine has 7 identical components which function independently. The probability that a component will fail is .2. The machine will stop working if more than three components fail. Find the probability that the machine will be working?

**Statistics**

The probability of an event can be negative, positive, or zero?

**Statistics**

If one of the 467 men is randomly selected, what is the probability of getting either an occasional smoker or a regular smoker?

**b-tech**

a 2d regular box has a perimeter of 200cm determine the maximum possible area

**psychology**

In social psychology whats the term that describes this scenario: someone treats you in a certain way then you respond in a certain way consistent with how you were treated. however, that is the way you wanted to act.

**math**

Double my tens digit to get my ones digit Double me and i am less than 5o.

**Teacher**

Can someone help me with this problem. When working with behavior disordered children in the classroom, the teacher aide can modify behavior by A praising them whe they succeed B using the same teaching techniques for every student C underestimating what the child can do D rei...

**bio**

How do organs get the nutrients from blood?

**Maths**

A psychological test was given to 92 teenage boys and 68 teenage girls. The test was used to assign a score to each teenager, measured on the ‘worry scale’ – 0 (not worried) to 100 (very worried). A summary of the results is given in the table below. Girls; Samp...

**Calculus**

Using 3(x-3)(x^2-6x+23)^1/2, as the chain rule differentiation of f(x)=(x^2-6x+23). Please explain how I find the general solution to the differential equation dy/dx= 2/27(x-3)SQUARE ROOT BEGINS (x^2-6x+23)/y SQUARE ROOT ENDS (y>0). In implicit form I have an answer of 18*y...

**calculus**

Please help with this question. I have a general solution to a differential equation of 18y^3/2= TOP LINE OF FRACTION is 2(x^2-6x+23)^3/2 and this is divided by 3.plus Constant .I work out constant c to be zero. Is this correct? What is the particular solution for which y=2 wh...

**calculus**

Please help with this question. I have a general solution to a differential equation of 18y^3/2= TOP LINE OF FRACTION is 2(x^2-6x+23)^3/2 and this is divided by 3. What is the particular solution for which y=2 when x=1. Then I need this particular solution in explicit form. Ma...

**error bound**

find the bound on the magnitude of the error if we approximate sqrt 2 using the taylor approximation of degree three for sqrt 1+x about x=0

**heart**

What causes the heart to move? Is that movement called a beat?

**math**

18/20 -6/20+ x/20=1 x=20-18+6 x=8 is this the correct answer

**math**

25/20 +16/20 +1/20 - x/20 = 1 25+16+1-x=20 x=160

**math**

25/20+16/20+7/20-x/20=1

**math**

25/20+16/20+7/20-x/20=1

**math**

25/20+16/20+1/20-*/20=1 explain it to me please

**math**

I need to complete the following number sentences so that the answer to each is 1 12/15 -7/15 + /15 =1

**math**

12/15 - 7/15 + /15 =1

**math**

i need to know how to do number sentences 12/15-7/15+/15=1

**math**

Given that 2x + 7 greater than 11, x cannot be equal to?

**english**

14. When one buys insurance, you need to be clear about your needs. __ Pronoun shift in number __ Pronoun shift in person __ Ambiguous reference __ No error

**business law**

what are 3 decision traps that influece human judgment and decision making? legal consequences of falling into the traps?

**com101**

where to find good sources on why renting is a better option than buying

**physics**

A glass window pane is exactly 23 cm by 38 cm at 10oC. By how much has its area increased when it temperature is 49oC, assuming that it can expand freely? Take the coefficient of thermal expansion for the glass to be exactly 9 x 10-6/Co

**physics**

The temperature of 4.60 mol of an ideal monatomic gas is raised 15.0 K in an adiabatic process. What are (a) the work W done by the gas, (b) the energy transferred as heat Q, (c) the change ΔEint in internal energy of the gas, and (d) the change ΔK in the average kin...

**physics**

The temperature of 4.60 mol of an ideal monatomic gas is raised 15.0 K in an adiabatic process. What are (a) the work W done by the gas, (b) the energy transferred as heat Q, (c) the change ΔEint in internal energy of the gas, and (d) the change ΔK in the average kin...

**math**

60% more than c=1200

**factorials- 2n!**

how does 2n! decrease

**algebra**

it doesnt work, the answer is approximately 2.7% :(

**algebra**

A town has a population of 8400 in 1990. Fifteen years later, its population grew to 12500. Determine the average annual growth rate of this town's population. How do i solve this using applications of exponential functions?

**chemistry**

1. CH3 single bond to N double bond to C double bond to O (Neutral charge all). 1 lone pair on N (2e), 2 lone pairs on O (4 electrons). 2.CH3 single bond to N (positive charge) triple bond to C (neutral) single bond to O (negative charge). 3 lone pairs on O.

**calculus(work)**

a rectangular water tank has a length 20 ft, width 10 ft , and depth 15 ft . if the tank is full , how much work does it take to pump all the water out (using calculus)?

**english**

he prolonged it

**Finance**

$29.18 I have a BBA in Finance and take courses for students. Message me at randall.a.neal(at)gmail(dot)com if interested.

**math**

find the percent notation for 0.046

**Math**

30 years = 90,136.80 15 years = 70,237.80 19,899 is the difference I have a BBA in finance and take courses for students. If interested, email me at randall.a.neal(at)gmail(dot)com

**Calculator help**

can someone tell me how to graph this equation on my graphing calculator: 300(2+sin(4sqrt x+0.15)) for 0<x<20

**geometry**

how to turn volume into gallons

**math**

how would you do this problem 25/40x=50

**math**

$5.10, calculated as follows: $.02 + $.04 = $.06 + $.08 = $.14 +$.16 = $.30 + $.32 = $.62 + %,64 = $1.26 + $1.28 = $2.54 + $.56 = $.10

**math !!!! :O**

$5.10, calculated as follows: $.02 + $.04 = $.06 + $.08 = $.14 +$.16 = $.30 + $.32 = $.62 + %,64 = $1.26 + $1.28 = $2.54 + $.56 = $.10

**IV help**

What is the drip rate for infusing an IV at a KVO rate using a 60 ttys/mL administration set?

**Physics**

each electron has a magnitude of charge 1.602*10^-19. So, divide the excess charge by the single electron charge to get a number of electrons. (3.1*10^-6 Coul)/(1.602*10^-19 Coul/e) = 1.9 *10^13 excess electrons.

**Organic Chemistry Lab**

a)If the Keq for the esterification of acetic acid with isopentyl alcohol is 3.0, what is the maximum amount of isopentyl acetate that can be recovered at equilibrium if a 1:1 mole ratio of alcohol was used? b)If a 1:5 mole ratio was used? c) 5:1 mole ratio?

**math**

How do you change 12d=60 into an linear enquality using either < or >?

**Chemistry**

What is the molality of a solution composed of 11.1 g NaCl dissolved in 638 g of water? Answer in units of m.

**finance**

$20.06 (if this year is supposed to be 2011) I have a BBA in Finance and take courses for students. If interested, email me at randall.a.neal(at)gmail(dot)com

**social studies**

Do you think many people live on the Kamchatka Peninsula ? Why or why not? My answer is no because there are 160 volcanoes and 29 are active.

**social studies**

Do you think many people live on the Kamchatka Peninsula? Why or Why not

**Chemistry**

What is the pOH of a solution which has a [H+] = 1.0 × 10¯³M?

**Finance**

Pearson Brothers recently reported an EBITDA of $9.0 million and net income of $2.7 million. It had $2.34 million of interest expense, and its corporate tax rate was 40%. What was its charge for depreciation and amortization? Could I get someone to help me on setting this up. ...

**math**

a single die is rolled onece. what is the probability of getting an even? what is the probability of getting a number less than 2? what is the probability of getting a 9?

**math**

how many ways can 3 magazines and 2 newspapers be chosen from 6 magazines and 8 newspapers?

**physics**

The electrons in a TV tube are accelerated from rest through a potential difference of 18kV. Esimate the speed of the electrons after they have been accelerated by this potential difference.

**social studies**

Why do many Eastern European countries want to join the European Union?

**social studies**

Why do many Eastern European countries want to the European Union?

**science**

what is the volume of a 6.o-kg aluminum ball having a density of 2700 kg/m3?

**math in topics**

how many new counselors are needed on campus to prevent students from waiting in long lines for academic advising. There are 5 advising counselors the wait time is 30 minutes. There are a total of 6 campus totaling 80,000.00 students. How can i set this up as a math problem t...

**math in topics**

how many new are needed on campus to prevent students from waiting in long lines for academic advising. 1) understand the problem 2) devise a plan 3) carry out the plan and solve the problem 4) look back and check the answer

**Calc BC**

A shoe company will make a new type of running shoe. The fixed cost for the production will be $54,000. The marginal cost will be $25 per pair of shoes. The shoes will sell for $115 for each pair. a) Write the cost function b) Write the revenue function c) Find the number of s...

**math**

solve by factoring.. 3x^2+5x-2=0

**math**

a rectangle is 4 times as long as it is wide. a second rectangle is 5 centimeters longer and 2 centimeters wider than the first. the area of the second rectangle is 530 square centimeters greater than the first. what are the dimensions of the original rectangle?

**math**

please tell me I did this problem right..4z=4/5 4/1 x 5/4=20/4 = 5

**math**

how do I get the simplest form for this and other problems? 1/7x= 6/7

**Identifying adverbs and adjectives**

After the cash-strapped (adjectives) dad takes a job moonlighting (adjectives) for a drug company, however, Jack's suspicions about his favorite (adjectives) male nurse come roaring back.

**Identifying adverbs and adjectives**

It has taken 10 years (adjectives), two little (adjectives) adorable (adverb)Fockers with wife Pam and countless hurdles for Greg to finally get "in" with his tightly (adverb) rudely (adverb) father-in-law, Jack.

**Identifying adverbs and adjectives**

I know a adjective descibes a noun and a adverb a verb, adjective or adverb but with this review I have trouble with the sentance.

**Identifying adverbs and adjectives**

The test (adverb)of wills between Jack Byrnes and Greg Focker escalates (adjectives) to new heights. It has taken 10 years, two little (adjectives) Fockers with wife Pam and countless hurdles for Greg to finally get "in" with his tightly (adverb) wound (adjectives) f...

**economics**

Investment may be thought of in each of these terms except: A. resources B. money spent C. percent of GDP D. imports vs. exports I think it's D but I'm not sure.

**economics**

Investment will tend to be low when the: A. capacity utilization rate is high and the interest rate is high. B. capacity utilization rate is high and the interest rate is low. C. capacity utilization rate is low and the interest rate is low. D. capacity utilization rate is low...

**economics PLEASE HELP**

According to the permanent hypothesis, households will tend to react to a temporary tax cut by: A. assuming the new tax level will be permanent. B. saving most of the additional disposable income. C. increasing consumption sharply in response to the higher disposable income. D...

**economics please ?**

When quantity supplied equals quantity demanded: A. there is disequilibrium B. the marked is cleared C. there is excess quantity demanded. D. there is excess quantity supplied I'm stuck between C and D but I think it's D?

**economics**

anyone know the answer?

**economics**

When quantity supplied equals quantity demanded: A. there is disequilibrium B. the marked is cleared C. there is excess quantity demanded. D. there is excess quantity supplied I'm stuck between C and D but I think it's D?

**economics**

thanks!

**economics**

or it might be B ?

**economics**

Black markets result from: A. price floors B. price ceilings C. shifts in demand D. competitive price outs I think it's C?

**economics**

thanks :-)

**economics**

If the equilibrium price of an hour with a personal trainer is $45 and the market price is currently $55, then there is: A. a surplus of personal trainers. B. a shortage of personal trainers. C. equilibrium D. none of the above I think it's A?

**english**

the function of the sentence****** ?

**english**

what is the part of speech of this sentence? 8. She is a terrible teacher. adverb interjection verb adjective I'm stuck between interjection and adjective?

**english**

what is the part of speech of this sentence? 2. How long did it take Marianne to build the model? pronoun noun verb interjection I think it's interjection?

**english**

Substitute these new art supplies for your old ones. pronoun interjection adjective verb I think it's verb?

**english**

okay I reworded it wrong, the function of the sentence

**english**

the part of speech of the sentence

**english**

1. Marianne exhibited her model spacecraft at the science fair. adjective adverb conjunction preposition I think it's adverb?

**AP Physics**

A rock, which weighs 350 lb in air, weighs 226 lb when submerged in fresh water (62.4 lb/ft3). The volume of the rock is:

**Chemistry**

Calcium carbonate reacts w/stomach acid according to the following chemical equation. CaCO3+2HCl(aq)-> CaCl2(aq)+H2O(l)+CO2(g) A. Balance the eqaution B. Tums is one commercially sold antacid that contains CACO3. If Tums is added to 20.0ml of 0.400 M HCl, how many grams of ...

**physics**

a spring with a spring constant 30.0 N/m is stretched 0.200 m from its equilibrium position. How much work must be done to stretch it an additional 0.100 m?

**social studies**

What challenges might the United Kingdom face if the diversity of its population continues to grow?

**social studies**

the same word is usually.. but that's under economic slack... I think it's C.. because it says every so often.. which is occasionally = sometimes.

**social studies**

Our economy ______ operates on its production possibility curve. A. always B. usually C. sometimes D. never I'm stuck between B and C. Here's the text: "Usually there's some economic slack, but every so often we do manage to operate at peak efficiency. When th...

**social studies**

thanks

**social studies**

There was an economic boom within one or two years after: A. both WWI and WWII. B. neither WWI nor WWII. C. WWI, but not WWII. D. WWII, but not WWI. I'm stuck between A and C. help?

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