Sunday

August 28, 2016
Total # Posts: 1,591

**chemistry**

A certain substance has a heat vaporization of 47.97 kJ/mol. At what Kelvin temperature will the vapor pressure be 7.50 times higher than it was at 297K? Please help me! I don't understand heat vaporization questions
*January 23, 2012*

**physics**

I CAN'T GET THE RIGHT ANSWER :( A 0.230 kg block on a vertical spring with spring constant of 4.25 multiplied by 103 N/m is pushed downward, compressing the spring 0.048 m. When released, the block leaves the spring and travels upward vertically. How high does it rise ...
*January 15, 2012*

**algebra**

Find the domain of the function g(x)=3/10-7x
*January 6, 2012*

**algebra**

-9-12(2-3y)= -25-2(y+6)
*December 8, 2011*

**algebra**

write the slope intercept euation for the line with slope -1/2 and y intercept (0,3) and graph the line.
*December 8, 2011*

**algebra**

write the slope intercept equation for the line that passes through (-5,10)and (-4,3)
*December 8, 2011*

**ALGEBRA**

what is -9y-12(2-3y)= -25-2(y+6)
*December 7, 2011*

**Chemistry-help**

0.5g of Solid A is dissolved in 1L solvent to give a concentration of concentration 0.5g/L. UV absorbance spectrum was collected. How to calculate the absorptivity on the dried basis?
*December 6, 2011*

**ALGEBRA**

determine if (-1/3,3) is a solution to 3x+8y=23
*December 5, 2011*

**math/117**

FOIL (8x^8-9)(x^9-5)
*December 4, 2011*

**Math**

Multiply (b+1/3)(b+1/5)
*December 4, 2011*

**math/117**

Which one is the answer? 3 or 2.54?
*December 4, 2011*

**math/117**

Jack usually mowes his lawn in 7 hours. Marilyn can mow the same yard in 4 hours. How musch time would it take for them to mow the lawn together?
*December 4, 2011*

**algebra**

write the equation for this situation the population, p, in thousands,can be approximated by the sum of 4 and one-half times the years since 1985,d. Then graph the equation and use the graph to determine the population in the town in 1995.
*November 30, 2011*

**algebra**

37.051 is 55.3% of what number.
*November 28, 2011*

**algebra**

Is x=6 a solution to -2x-4=-8 I think that it is yes.
*November 17, 2011*

**marketing**

Explain the importance of an organized new-product development process and illustrate how it might be used for (a) a new hair care product, (b) a new children’s toy, and (c) a new subscribers-only cable television channel.
*November 17, 2011*

**English- Due Soon**

Please check for any errors and correct them. Thank You. The word Divorce can make a lot of people feel hurt, angry, and depressed. But for others, it can mean the end to a bad or abusive marriage. Many people do not like to talk about it, but it can put a huge strain on kids...
*November 16, 2011*

**algebra**

what is the volume of a sphere with radius r is given by the formula v=4/3 r^3 Find the volume of sphere with radius 4 meters. use 3.14 for the value of x and round your answer to the nearest tenth.
*November 16, 2011*

**Chemistry**

What is the molecular geometry (shape) if you have 3 single bonds and 1 lone pair around the central atom?
*November 14, 2011*

**English- Due @ 8**

Ok Sra were those the only errors that you founded?
*November 13, 2011*

**English- Due @ 8**

Please chech for any errors and let me know if I need to change please correct it for me. Obesity is one of the major causes of health problems in the United States. According to Charles Schmidt, obesity is starting to catch up with smoking, which is causing illness and death...
*November 13, 2011*

**algebra**

Minute hand of a clock is 10 inches long. how far does the tip of the minute hand move in 15 seconds? I got that=5 pi BUT What speed is it moving in miles/hr???? algebra - PsyDAG, Sunday, November 13, 2011 at 1:38am Assuming it does move 5 pi, convert 5 * 3.1416 = 15.7 inches ...
*November 13, 2011*

**algebra**

Minute hand of a clock is 10 inches long. how far does the tip of the minute hand move in 15 seconds? I got that=5 pi BUT What speed is it moving in miles/hr????
*November 12, 2011*

**MATH**

2x -4y = 8 find the real number for x and y
*November 11, 2011*

**Psy**

Professor Klinger says that all of your ideas come from interaction with the environment rather than anything that you were born with. The professor is advocating a theoretical perspective based on a(n)___ view. A) tabula rasa b) contemporary c) moral d) ecological
*November 10, 2011*

**ALGEBRA**

9/16-(-3/16) SUBTRACT SHOW ALL OF YOUR WORK SIMPLIFY tHIS IS WHAT I GOT. 9/16+3/16=12/16=3/4 IS WHT I got.
*November 10, 2011*

**ALGEBRA**

SIMPLIFY 0.1/O i GOT 0 FOR THE ANSWER BECAUSE ANY NEMBER DIVIDED BY 0 IS UNDEFINED IS THAT CORRECT.
*November 10, 2011*

**ALGEBRA**

STATE THE RECIPROCAL. -1/10 MY ANSWER IS -10 I need to know if I am on the right track.
*November 10, 2011*

**ALGEBRA**

write the expression using exponents m*m
*November 10, 2011*

**algebra**

write the wxpression using exponents. m*m
*November 10, 2011*

**algebra**

add -90+17
*November 10, 2011*

**algebra**

simplify (-19)^2
*November 10, 2011*

**algebra**

simplify 0.1/0
*November 10, 2011*

**algebra**

c-(c^2)-7 for c=-6
*November 10, 2011*

**algebra**

3b-(-12-b)
*November 10, 2011*

**algebra**

simplify 5+5^2(23)-(-27)
*November 10, 2011*

**ALGEBRA**

-1/10 state the reciprocal.
*November 10, 2011*

**ALGEBRA**

-8/9*27 multiply. show all of your work.
*November 10, 2011*

**ALGEBRA**

9/16-(-3/16) subtract show all of your work. simplify
*November 10, 2011*

**English Help Please Due at 8am**

Please proofread for any errors. If you see any please correct them. Thank you. Obesity is one of the major causes of health problems in the United States. Research has been done about this topic for many years. It is more common in the United States because of all the ...
*November 9, 2011*

**algebra**

Evaluate 5x-3y x=3 and y=4 ----- 7
*November 8, 2011*

**MATH**

HOW DO I COME UP WITH THE REAL NUMBERS FOR X-2Y=200 THE REAL NUMBERS FOR X AND Y
*November 8, 2011*

**MATH**

X-4=300 HOW DO I FIND THE REAL NUMBER FOR X
*November 7, 2011*

**algebra**

-1/2*3/5*(-2/7)
*November 7, 2011*

**algebra**

COMBINE LIKE TERMS 14-(-5x)+ 2z-(-32)+4z-2x
*November 7, 2011*

**algebra**

perform the indicated operation and if possible,simplify please show all of your work. write your answer in lowest terms. 18/35 divided by 22/25
*November 7, 2011*

**algebra**

write a true sentence using either < or> -7.82 -7.802
*November 7, 2011*

**algebra**

TRASLATE THE FOLLOWING SENTENCE INTO AN EQUATION. dO NOT SOLVE TEN MORE THAN THREE TIMES A NUMBER IS 130.
*November 7, 2011*

**ENGLISH**

Ok I made the changes and also added some info. If you would please check it for errors I would appreciate it. Obesity is one of the major causes of health problems in the United States. Research has been done about this topic for many years. It is more common in the United ...
*November 6, 2011*

**ENGLISH**

Please check for any errors. If you would correct them i would appreciate it. Obesity is one of the major causes of health problems in the United States. Research has been done about this topic for many years. It is more common in the United States because of all the ...
*November 6, 2011*

**ALGEBRA **

use the associative law of addition to write an equivalent expression (r+st)+ 8
*November 6, 2011*

**algebra**

Write a true sentence using either < or> -7.82 -7.802
*November 6, 2011*

**algebra**

EVALUATE 5x-3y ________ for x=3 and y=4 7
*November 6, 2011*

**algebra**

x+10+3x=130
*November 6, 2011*

**algebra**

TRANSLATE THE FOLLOWING SENTENCE INTO AN EQUATION DO NOT SOLVE. tHIS IS WHAT I GOT Ten more than three times a number is 130.
*November 6, 2011*

**algebra**

use the associative law of addition to write an equilalent expression (r+st)+8
*November 6, 2011*

**algebra**

perform the indicated operation 7/5 * 8/3
*November 5, 2011*

**math**

how do you find the coordinate of x in the problem x-4y=100 in other words how do i find out what x is and 4y what do the y stand for how do i get it
*November 5, 2011*

**algebra**

order from least to greatest. -1/4, -2/3, 7, -8, 9
*November 3, 2011*

**AP Government**

I found that it ensures the members electoral advantage, and...?
*November 2, 2011*

**AP Government**

Who assigns bills the the committees? Why is this an important power to have and how can this person use this influence?
*November 2, 2011*

**math**

Carlos had a 10% off coupon and spent it on a computer game that was marked down 30%. What was the total discount?
*October 30, 2011*

**Business Math**

Please answer these problem for me.Thanks so much. 1. Border's Bookstore ordered 800 art books. On verifying the order, only 160 books were actually received. The percent of the order missing was: 2. The net price equivalent rate of 9/15/18 is: 3. If the net price of a ...
*October 18, 2011*

**Math**

Please answer these problem for me.Thanks so much. 1. Border's Bookstore ordered 800 art books. On verifying the order, only 160 books were actually received. The percent of the order missing was: 2. The net price equivalent rate of 9/15/18 is: 3. If the net price of a ...
*October 18, 2011*

**Physics**

A boy has a mass of 45 kg and is running with a velocity of 8 m/s. Find the boy's kinetic energy.
*October 17, 2011*

**English-Please Help Due @ 8a.m.**

Can you please check for any errors. And corrent the errors for me. It is due tomorrow morning. Also, let me know if you think this is a descriptive essay. If you think i need to add something else let me know. My Dear Mother She is only about five feet tall and weight no more...
*October 3, 2011*

**English**

ok one question. There you have awkward sentence, how could i use it but make it sound better to fit in the paragraph.
*October 3, 2011*

**English**

Can you please check for any errors. And corrent the errors for me. It is due tomorrow morning. Also, let me know if you think this is a descriptive essay. If you think i need to add something else let me know. My Dear Mother She is only about five feet tall and weight no more...
*October 3, 2011*

**Statistics**

sara is a healthy baby who was exclusively breast-fed for her first 12 months. what is more likely a description of her weights (at 3, 6, 9, and 12 months of age) as percentiles.
*September 30, 2011*

**ap government **

what are two ways that amendments to the constitution can be proposed?
*September 29, 2011*

**physics**

Any object that moves through the air (or space) under the influence of gravity is...?
*September 22, 2011*

**physics**

a cannonball is fired with initial speed v0 at an angle 30 degrees above the horizontal from a height of 40m above the ground. the projetile strikes the ground with a speed of 1.2v0. find v0.
*September 22, 2011*

**physics**

A cat is being chased by a dog. Both are running in a straight line at constant speeds. The cat has a head start of 3.3 m. The dog is running with a speed of 9.0 m/s and catches the cat after 6.7 s. How fast did the cat run? I see that the velocity and time are given, so does ...
*September 16, 2011*

**physics**

thank you very much
*September 16, 2011*

**physics**

A cannon is fired horizontally from a platform (see figure). The platform rests on a flat, icy, frictionless surface. Just after the shell is fired and while it is moving through the barrel of the gun, the shell (mass 3.0 kg) has an acceleration of +2450 m/s2. At the same time...
*September 16, 2011*

**Science**

the first thing you would have to do is rearrange the formula avga= vf-vi/t. swith avg a and time diagonally and let me see how it turns out to ya!
*September 13, 2011*

** IRSC**

the sum of the lengths of any two sides of a triangle must be greater than the third side. If a triangle has one side that 17 inches and a second side that is 1 inch less than twice the thrid side, what are the possible lengths for the second and third side.
*September 11, 2011*

**algebra 2 review**

0.2(X+3)-4(2x-3)=0.9
*September 6, 2011*

**medical billing**

Define and discuss the relationship between patient registration, the hospital chargemaster, coding systems and reimbursement.
*August 23, 2011*

**Fitness **

1. Your heart functions in your body as a/an A. filter for impurities. B. organ for absorbing vitamins and minerals. C. muscle that helps to pump oxygen around the body. D. series of joints responsible for endurance. 2. If you’re aerobically fit, you can A. quit your ...
*August 21, 2011*

**Pre Cal/Logarithism**

given that f(x)=11^x, find x when f(x)=7 a) x=Ln(7/11) b) x=Ln7/Ln11 c) x= 7/11 d) x= ll sub 7 11
*July 24, 2011*

**Pre Cal**

simplify the quotient: [(x+1)^3(4x-9)-(16x+9)(x+1)^2]/[(x-6)(x+1)^3]
*July 24, 2011*

**Pre Cal/ domain**

Domain of a) x^20 b) 1/(x-3) c)1/(4x^2-21x-18) d) sqrt(4x^2-21x-18) e) 1/ sqrt(4x^2-21x-18)
*July 24, 2011*

**pre cal 2**

tanx(cotx/cosx)=secx tanx(1/tanx)(1/cosx)=secx cross out tanx with (1/tanx) and your left with (1/cosx) which is secx.
*July 24, 2011*

**Pre Cal**

Oops. sorry i was distracted while writing and forgot to put the negitive.
*July 24, 2011*

**Pre Cal**

and x<3/4 or x>6 is the answer?
*July 24, 2011*

**Pre Cal**

isn't it the same as d, because the domain is looked at in the demoninatior?
*July 24, 2011*

**Pre Cal**

find the domains of the following functions: a) f(x)=x^20 b) g(x)=1/(x-3) c) h(x)=1/(4x^2=21x-18) d) k(x)=sqrt (4x^2-21x-18) e) p(x)=1/sqrt(4x^2-21x-18)
*July 24, 2011*

**Pre Cal**

a radio actice substance decays so that half of the substance decays every 2 minutes. if 100 g of the substance are present initially, how many grams will be present after 4 minutes and 8 minutes respectively?
*July 24, 2011*

**Precal**

a 6' person is standing x feet away form a 10' lamppost. what is the distance d from the base of the lamppost to the end of the person's shadow, expressed as a function of x.
*July 24, 2011*

**Pre Cal**

which of the expressions are identical? a) cos^2x b)(cosx)^2 c) cos (x^2) d) (sinx)^-1 E) sin^-1 x f) sin (x^-1) g) 1/ sin x
*July 24, 2011*

**Pre Cal**

simplify the expression 2sin^2 t + cos^2 t-2
*July 24, 2011*

**Pre cal**

a sinusoidal function has a local maximum at (0,2) and the next minimum at (Pi/4, -2). a correct equation for the function is
*July 24, 2011*

**statistics**

calculate the probability that a randomly selected student is taller than 5 feet5 inches in height. there are 31 students out of the 57 students who are 5 feet 5 inches in height. I just want to know how to set this problem up.
*July 10, 2011*

**statistics**

calculate the probability that a randomly selected student is a female if they are at most 30 years of age, there are 27 females out of 57 students.
*July 10, 2011*

**Math/116**

. The function C(g) represents the cost C of filling up the gas tank with g gallons of regular gasoline. Given the equation a) What does the number 3.03 represent?
*June 25, 2011*

**chemistry**

Determine the mass of NaCl present needed to prepare 500mL of 4.0%m/v solution. Please show me how to set up problem
*June 16, 2011*

**matt/116**

b. For the first phase of the project, imagine you want to cover the backyard with decorative rock and plant some trees. You need 30 tons of rock to cover the area. If each ton costs $60 and each tree is $84, what is the maximum number of trees you can buy with a budget of $2,...
*June 12, 2011*

**geometry**

x^3-1
*June 10, 2011*