Thursday
December 18, 2014

Posts by Bob


Total # Posts: 2,499

math
how do I solve this? I know it's common math, but I cannot remember how! -4x> 1/11 I think I multiply both sides by 11, but..... I can't remember how!
March 28, 2010

math
Help! These are fractions, so bear with me: -5/8 x= -9/10 Solve with the multiplicaation principle. How do I do this? The fractions throw me off every time!!!
March 28, 2010

math substitution method
I know this! Put it in for x. So 7(28-6y) +5y=-26 use that to get y, then plug your answer for y into one of the equations to get x
March 28, 2010

math
Help! These are fractions, so bear with me: -5/8 x= -9/10 Solve with the multiplicaation principle. How do I do this? The fractions throw me off every time!!!
March 28, 2010

algebra/common math
how do I solve this? I know it's common math, but I cannot remember how! -4x> 1/11 I think I multiply both sides by 11, but..... I can't remember how!
March 28, 2010

algebra
I need help! Solve by hte elimination method: 7r-9s=-12 9r+7s=96 When I do this, I get a crazy fraction, and I know the answer is a point. (r,s) But what I'm getting is ridiculous. I got -564/130=s! That has to be totally wrong!
March 28, 2010

3rd grade
Unscramble cioponam
March 23, 2010

6th grade - English
what is the antonym for ndrvr
March 22, 2010

MATH - Can someone please help!
What is the solution of the interval notion? x less than 6 and x greater than -3
March 21, 2010

algebra
How do I solve this with the elimination method? 5x-10y=4 5x-10y=5 I need x=, and y= to get an ordered pair, but every time I mult. by a neg, everything goes away instead of just one variable! please help!
March 21, 2010

chemistry
At 300.K and 1.00 atm, assume that 25 mL of NO gas reacts with 22 mL of oxygen gas and excess water to produce nitric acid according to the following equation: O (g) H O(l) 2 HNO (g) 2 2NO(g) 3 + 2 + 2 ⎯⎯→ 3 . If all of the nitric acid produced by this ...
March 21, 2010

Math
What is the solution of the interval notion? x less than 6 and x greater than -3
March 21, 2010

algebra
how do I break this down? 4x-7 <-4 over 6 the 4x-7 is all over 6 (like a fraction) I thought I just multiply by 6 to get rid of the fraction?
March 20, 2010

algebra
YOU ARE RETART JEWBU
March 17, 2010

6th grade math
answear is x>54(11)+ 20 what is x,=81
March 16, 2010

chemistry
What are the probably products of... a) an aqueous solution of two ionic compounds b) a single compound c) two elements d) oxygen and a compound of carbon and hydrogen ?
March 16, 2010

Environmental Science
very helpful :)
March 15, 2010

math
How do I solve the equations using the elimination method: .3x-.2y=4 and .4x +.3y= 49/23 Normally I would multiply the decimals by 10 to make them whole numbers, but that fraction is really throwing me off. What do I multiply to eliminate that fraction? Please help!
March 14, 2010

Auditing
1. Which of the following matters would an auditor most likely consider to be a significant deficiency to be communicated to the audit committee? A. Management's failure to renegotiate unfavorable long-term purchase commitments. B. Recurring operating losses that may ...
March 11, 2010

Math 208
3....
March 8, 2010

Math 208
3....
March 8, 2010

Math 208
;...
March 8, 2010

Math 208
3.14159265358979323
March 8, 2010

Math 208
My mom
March 8, 2010

Math 208
Hee hee
March 8, 2010

Math 208
219
March 8, 2010

Business
Looks right to me
March 5, 2010

algebra 1
Itwantedtobethenightmare
March 2, 2010

Calculus
Where did you get the (L-5) and the (W-4)?
March 1, 2010

math
When a lady faints, what number do you need to bring her?
February 28, 2010

Chem
A gas at a pressure of 1 atm, a volume of 1 , and a temperature of 25 C. What would happen to the pressure if the volume were reduced to 0.5 and the temperature increased to 250 C ?
February 27, 2010

math
4N
February 24, 2010

chemistry
Diacetyl, a substance contributing to the characteristic flavor and aroma of butter, consists of 55.8% C, 7.03% H, and 37.17% O. In the gaseous state at 100 degrees celsius and 747 torr, a 0.30 gram sample occupies a volume of 111 ml. What is the molecular formula of diacetyl?
February 23, 2010

Chemistry
A mixture of gasses at a total pressure of 95 kPa contains N2, CO2, and O2. The partial pressure of the CO2, is 24 kPa and the partial pressure of the N2 is 48 kPa. What is the partial pressure of the O2?
February 22, 2010

Chemistry
A gas storage tank has a volume of 350,000 when the temperature is 27 degrees celcius and the pressure is 101 kPa. what is the new volume of the tank if the temperature drops -10 degrees celcius and the pressure drops to 95 kPa? please show work.
February 22, 2010

Physics
u r wight and ask ur teacher if u are confused it is the best way...
February 22, 2010

Science
You are 100% correct...I think...
February 22, 2010

Chemistry
A gas occupies a volume of 140 mL at 35 degrees celsius and 97 kPa. What is the volume of the gas at STP?
February 22, 2010

Chemistry
A 10 gram of mass of krypton occupies 15.0 L at a pressure of 210 kPa. What is the volume of the krypton when the pressure is increased to 790 kPa?
February 22, 2010

College physIcs
"You don't seem to be willing to take step one in answering these problems yourself. " What good is just knowing a formula?
February 19, 2010

ethics 125
· Consider the following statements: (a) Asian Americans and Pacific Islanders are a model minority, and (b) Asian Americans and Pacific Islanders belong to a single “Asian American” culture. If someone said one of these statements to you, how would you ...
February 18, 2010

4th grade math
I think Erik meant to say that Judy had 15, not 12. Then, it solves that 27+ (27-12)=42, right? My SIL just called asking us this same question...must be at the same place in the book!
February 17, 2010

Chemistry
4.76 kg
February 17, 2010

spanish
Choose the correct command form. No __________ uds.esos zapatos sucios en la casa! (llevar) A. llevan B. lleven C. lleve D. lleva
February 17, 2010

chemistry
If 2500 ml container is filled with 175 grams of argon at -48 degrees celsius, what is the pressure?
February 16, 2010

chemistry 2
Then your answer is B
February 16, 2010

chemistry 2
im confused i cant set this problem up correctly? I need a lot of help
February 16, 2010

chemistry 2
(2.0/0.5)=4
February 16, 2010

chemistry 2
A gas diffuses only 0.5 times as fast as an oxygen molecule at the same temperature. What is the molecular weight of the gas?
February 16, 2010

Chemistry
How do you convert from mass percentage to molality? I get 0.084 m but that is incorrect.
February 15, 2010

chemistry
how many grams of propane are in a 35L container at 40 degrees and 900 torr?
February 14, 2010

chemistry
how many grams of propane are in a 35L container at 40 degrees and 900 torr?
February 14, 2010

physics
fdfadf
February 13, 2010

Math
12
February 10, 2010

Physics
a^2 + b^2 = c^2
February 8, 2010

trig
2sin(3x-3.14)-1 find the inverse form of this equation
February 8, 2010

Algebra
Can I simplify this further SQRT( 2 - SQRT(2) )
February 8, 2010

math
need help with this problem 9-10x2 divided by 5+7
February 7, 2010

algebra
what percent of 180 is 27?
February 7, 2010

science
two common ways in which a glacier can cause ersion?
January 28, 2010

math
The percentage of working mothers y can be modeled by the equation y=0.0102x + 0.644 where x is the number of years since 1990. In what year will 90% of mothers be in the labor force?
January 28, 2010

3rd grade
when i am rounded to the nearest ten, i am 30. The sum of my two digits is 5. What number am I?
January 25, 2010

calculus
I tried the integral from 1 to e of 1-lnx^2 but that doesn't work.
January 25, 2010

calculus
Find the volume if the area between the curve y=lnx, x=1, and y=1 is rotated about the x-axis.
January 25, 2010

fifth frade fractions
Two numbers have a product of 3 1/5 and a sum of 3 3/5. one of the numbers is a whole number. What are the numbers?
January 25, 2010

algebra
a)using intercepts, graph the three lines 4x + y - 8=0, 2x - y - 4=0, x + 2y - 16 = 0
January 24, 2010

math
Extremely large numbers, number of sand particles on the world, distance to the nearest star in KM's etc.
January 21, 2010

Chemistry
A 71.0 L cylinder containing CH2O at a pressure of 0.550 atm is connected by a valve to 1.50 L cylinder containing N2 at 266.0 torr pressure. Calculate the partial pressure (atm) of N2 when the valve is opened.
January 20, 2010

AED 204
i just want to know what to do? do u awnser it personally? Appendix D Educational Implications of Socioeconomic Status Matrix Directions: Based on your personal experiences and on the readings for this course, answer the questions in the green section of the matrix as they ...
January 18, 2010

AED 204
Who is most likely to be a part of this socioeconomic class? How do teacher expectations positively or negatively impact this socioeconomic class? How does tracking positively or negatively impact this socioeconomic class? How is financial support for schools serving this ...
January 18, 2010

biology
This qualitative study aimed at exploring whether students' successful use of analogy in learning curriculum complex science concepts was related: (a) to the level of their understanding of a specific analogy and (b) to their metacognitive awareness of how the analogy was ...
January 18, 2010

spanish
what does this mean__________ Que tienes en tu mochila?
January 14, 2010

spanish
what are you wearing
January 14, 2010

Physics
A mass m is hanging on a string that passes over a pulley and is then attached to another mass 3m that is resting on a horizontal table (along with the pulley). Neglect friction. Mass m is held montionless and is then released. When it has fallen a distance h, it will have a ...
January 12, 2010

Math
h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 3 1 6 6 6 2 2 you can post your response here please
January 10, 2010

chemistry
when there is 3.0 x 10^20 molecules in a closed container, the pressure is 1.2 atm. Using a pumper 1.5 x 10^20 more molecules are added to the container. what is the new pressure?
January 10, 2010

Math
like post here so that way i do not have to search for the old question
January 10, 2010

Math
h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 3 1 5 7 1 0 1 can you post response in this question thanks
January 10, 2010

Algebra
Can this be simplified or factored into a more simpler form??? (X^2 + X)/(X^2 + 3X) Thank You
January 10, 2010

geo
blank
January 9, 2010

Plant Project
Is the Spotted Chinese Evergreen plant a monocot or dicot? This project is due Friday. I've researched on it and have found nothing but how to take care of it. Please help if you have any information!
January 5, 2010

english
how do you translate my winter break in french?
January 4, 2010

calculus
write a power series for e to the 2x and find the interval of convergence
January 3, 2010

english
Which word do you use in the following sentence? and why? (every day or everyday) Karen waited for the school play.
December 29, 2009

Physics
3) Joe has a playing time of 74 minutes. When the music starts, the CD rotating at an angular speed of 480 revolutions per minute (rpm). At the end of the music, the CD is rotating at 210 rpm. Find the magnitude of the average angular acceleration of the CD (in rad/s^2)
December 21, 2009

trig
this is in 3 grade?
December 17, 2009

Calculus
I got the same answer for the first derivative but I am still messing something up for the second derivative. It is probably taking out the common factor. I'll check back later, got to go.
December 15, 2009

Calculus
Find y' and y'' y=X^3/(X^2-1)
December 15, 2009

Unit rates
Explain how you can use a unit rate to compare what store is a better buy.
December 13, 2009

social studies
hi
December 13, 2009

Math
Find the line for the above data. X:5,5,7,8,9,11,12,12,14 Y:3,8,5,7,11,10,15,19,20
December 12, 2009

New Testament Survey
caesar agustus
December 10, 2009

software
what are some different elements in a internal proposal
December 10, 2009

6th grade Math
the two numbers are 1.5 and 2.4 a+b=3.9 a-b=0.9 a=0.9-b subbing in the second formula into the first 0.9+b+b=3.9 2b=3.0 b=1.5 a+1.5=3.9 a=2.4
December 8, 2009

MATH
24 eggs * 3/4 = 24 *3 = 72 72/4 = 18 eggs broke 18/24 = 3/4
December 8, 2009

Chemistry
The Ph of the new acid/base is now "poo"
December 7, 2009

physics
please answer this one if you know it, im soooo bad at physics
December 6, 2009

physics
A rocket is fired upwards with 200.0 J of kinetic energy. How high does the rocket get at its highest point? Use the conservation formula.
December 6, 2009

physics
A batter hits a fly ball which leaves the bat 0.90 m above the ground at an angle of 61° with an initial speed of 29 m/s heading toward centerfield. Ignore air resistance. (a) How far from home plate would the ball land if not caught? (b) The ball is caught by the ...
December 2, 2009

physics
A swimmer is capable of swimming 0.45 m/s in still water. (a) If she aims her body directly across a 75 m-wide river whose current is 0.30 m/s, how far downstream (from a point opposite her starting point) will she land? (b) How long will it take her to reach the other side? ...
December 2, 2009

Pages: <<Prev | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | Next>>

Search
Members