Friday

February 24, 2017
Total # Posts: 225

**chemistry/ partial pressure**

N2 was collected over water at 25 degrees C. The resulting pressure was 705 torr. The vapor pressure of water at 25 degrees C is 23.8 mm. What is the partial pressure of N2?

*October 22, 2011*

**chemistry**

Given 6.00 L of N2 at -25 degrees C. Find Vol in L at 100K

*October 22, 2011*

**math**

one side of a triangle is 1.5 inches long.the two angles it touches are 30 and 100 degrees

*September 21, 2011*

**Science**

hi denna its bianca i'm sorry but i forgot the answer hahaha

*September 13, 2011*

**Physics**

204 km/h at 75 degrees north of east

*September 5, 2011*

**Math**

A drawer contains 22 black socks, 22 white socks, 22 blue socks, and 22 brown socks. If the light is off and Matt reaches into the drawer to get his socks, what is the minimum number of socks he must pull out in order to be sure that he has a matching pair? He must pull out a ...

*September 5, 2011*

**math**

IN COIN BANK 58

*August 22, 2011*

**Math**

Solve for x: x2 + 4x + 2 = 0

*August 9, 2011*

**Math**

Determine the values of x for which x-5/3x+6 is undefined

*August 9, 2011*

**Math**

Harry has test grades of 85, 87, and 77 on his first three algebra tests. What must he get on his fourth test to earn an average of at least 84?

*August 9, 2011*

**biology**

i go to K12 it is a home schooling program and i think it is very hard......can you pleasehelp me??

*June 1, 2011*

**geometry**

A pole makes an 85 degree angle with the ground what is the measure of the angle the pole makes with the vertical?

*April 20, 2011*

**algebra**

When the like terms are the same number but opposite (positive and negative) would they cancel each other out?

*April 17, 2011*

**math**

450

*April 17, 2011*

**Math. Help me please!**

The two circles have equations x^ + (y-3)^2 = 49 and x^2 + (y-17)^2 =49. find the equation of the larger circle. The diagram looks like two circles on top of the other then a large circle outside.

*April 14, 2011*

**algebra**

1.56 x 10^2 + (5^2)^4=?

*April 12, 2011*

**algebra**

(3+2)^2 x 6^9

*April 12, 2011*

**math**

a certain company makes inflatable swimming pools that come in four rectangular sizes.the length of each pool is twice the width and twice the depth.the pools are 1 foot ,2 feet,3 feet and 4 feet deep.what is the area of the surface of tge water of each swimming pool?if the ...

*April 11, 2011*

**college**

The width of a rectangle is 25% of the length. The perimeter is 250 cm. Find the width and the length of the rectangle.

*April 11, 2011*

**CRIMINOLOGY**

Does the states criminal system follow the rule of law which is set forth in the constitution and is federal law?

*April 9, 2011*

**math(rate of change)**

{{{(f(6) - f(0))/(6-0) = (6^2 + 2*6 - 0^2 - 2*0)/6 = 48/6 = 8}}}

*April 9, 2011*

**algebra**

the equation y=1777x+27,153 can be used to predict the number Y of gun deaths in the US X years after 2000, that is x=0 corresponds to 2000, x=3 corresponds to 2003, x=4 corresponds to 2004, and so on. Predict the number of gun deaths in 2004 and 2009, In what year will the ...

*April 3, 2011*

**algebra**

Dertermine whether ech binomial is the difference of two squares, If so, factor it, if not explain why? -m^6 36s^2-4t^2 9b^4-200 x^2-16 x^2y^2+196

*March 27, 2011*

**science**

what pressure is required to cause n2 to have a density of 1.00 g/L at 45 C?

*March 26, 2011*

**chemistry**

Arrange the following aqueous solutions in order of increasing freezing points (lowest to highest temperature): 0.10 m glucose, 0.10 m BaCl2, 0.20 m NaCl, and 0.20 m Na2SO4.

*March 8, 2011*

**question**

A temperature of 41 degrees F is equivalent to 278.2 degrees K, while a temperature of 86 degrees F is equivalent to 303.2 degrees K. Find the equation converting Kelvin temperature to Fahrenheit. What is the Fahrenheit temperature when it is 180 degrees K? on converting ...

*March 1, 2011*

**algebra**

Find the functional values f(-2), f(0), and f(1) for the function. ƒ(x) = X²- 1

*March 1, 2011*

**algebra**

What is an example of a real life situation that could be modeled by a function.

*February 28, 2011*

**algebra**

Graph the following equations; calculate the slope, x-intercept, and y-intercept, and label the intercepts on the graph. Find the area of a rectangle if three of its corners are (-0.1,-3.4), (-7.9,-3.4), and (-0.1,6.8). one I draw the graph how do I figure out the area of the...

*February 28, 2011*

**algbra**

how would I do th equation on this problem?

*February 28, 2011*

**algbra**

Graph the following equations; calculate the slope, x-intercept, and y-intercept, and label the intercepts on the graph. Find an equation in slope-intercept form passing through the points (-6.2,18.1) and (-3.4,18.1).

*February 28, 2011*

**ALGEBRA**

Find an equation in slope-intercept form passing through the points (2,5) and (7,-3). M=(-3,-5)/(7,-2) M=-8/5 IS THE SLOPE [Y=MX+B] 5=-8/5*2+B 5=-16/5+B 5+16/5=B (25+16)/5=B 41/5=B THE Y INTERCEPT Y=-8X/5 +41/5 HOW WOULD I SHOW A GRAPH ON THIS PROBLEM?

*February 26, 2011*

**algebra**

A consumer electronics company sells 6.7 million MP3 players per month at a price of $100 apiece; when the price is lowered to $80, the company sells 10.2 million players per month. How many MP3 players can the company expect to sell per month at a price of $75? (100, 6.7) and...

*February 26, 2011*

**CRIMINOLOGY**

what are some social conflicts with the death penalty?

*February 24, 2011*

**CRIMINOLOGY**

What types of social conflict exist in American culture today? Are they productive conflicts, producing results for those who need help?

*February 24, 2011*

**algebra**

The final grade for a particular course is calculated by dividing total points earned by total points available. There are 120 points available in the first half of the course, and 140 points in the second half of the course. If a student earns 81% in the first half ofthe ...

*February 22, 2011*

**Math**

Show me how to solve 3(+4x -1)<2

*February 14, 2011*

**math**

WHAT IS 60X30 LOL WAT

*February 13, 2011*

**Physics**

The shuttle is orbiting the earth at a distance of 500km above the earths surface. Assumingan astronaut has a mass of 72kg, what is the force of gravity upon him or her? You may assume the earth has a mass of 5.98 x 10^24kg and a radius from the center to the surface of 6....

*January 19, 2011*

**MATH**

Determine the values of x for which x-5/3x+6 is undefined

*January 11, 2011*

**science**

which of the following are not examples of centripetal acceleration

*December 9, 2010*

**algebra**

The question is: You plan on attending a picnic for the up coming holiday. You can either go to your sister's picnic who lives 10 miles west of your house or to your friends picnic who lives 10 miles east of your house. write an absolute value inequality that represents ...

*December 3, 2010*

**Pre-algebra**

Lydia wrote 4.5 pages on her science report in 1 hr.What was her writing rate in pages per minute?

*November 29, 2010*

**algebra**

Mixture Problems Template – Price Problems Copy the problem from the lesson: 1. A store manager wishes to reduce the price on her fresh ground coffee by mixing two grades. If she has 50 pounds of coffee which sells for $10 per pound, how much coffee worth $6 per pound ...

*November 17, 2010*

**english**

What does opportunity mean in today's current social and academic contexts

*November 6, 2010*

**Biology**

Describe the features of the nasal cavity that moisten, clean, and warm the air as it passes through this cavity on its way to the lungs.

*October 29, 2010*

**Chemistry**

how many moles of Ba(OH)2 are present in 295mL of 0.400 M Ba(OH)2?

*October 29, 2010*

**Chemistry**

I made a graph and i used line of best fit. How do i find the slope of the line?

*October 26, 2010*

**Physics**

A man measures the acceleration of an elevator using a spring balance. He fastens the scale to the roof, and suspends a mass from it. If the scale reads 98N when the elevator is at rest, and 93N when the elevator is moving, (a) what is the acceleration of the elevator? (b) in ...

*October 25, 2010*

**history**

what act can you remember and celebrate dr.kings legacy

*October 22, 2010*

**hurry i need help**

it was in the east that's all i know sorry

*October 20, 2010*

**6th grade**

sammy is right acute is less than 90 degrees right angle is 90 degrees obtuse is above 90 degrees

*October 20, 2010*

**Life...**

I see. Thanks!

*October 19, 2010*

**Life...**

Do i need to take precal and physics in highschool to become a nurse, dentist, or doctor?

*October 19, 2010*

**Physics**

How did you get -35 on #2?

*October 19, 2010*

**Multiplicative inverse**

Is the multiplicative inverse for 12/13 13/12?

*October 13, 2010*

**Multiplicative inverse**

Is the multiplicative inverse for 12/13 13/12?

*October 13, 2010*

**Algebra**

What is 9m+2m-8=5(m-2)

*October 5, 2010*

**Algebra**

What is 9m+2m-8=5(m-2)

*October 5, 2010*

**Chemistry**

the nitrate (NO-3) salt of the metal ion

*October 4, 2010*

**math**

a number divisible by 4 and 5 not by 6

*September 27, 2010*

**algebra 1**

i don't know how to solve the following: 3(x+2y)+$(3x+y)

*September 21, 2010*

**Biology 9th grade**

What the heck?

*September 16, 2010*

**algebra**

Abraham Lincoln, gettysburg address begins with the phrase (four score and seven years ago.) He was refering to a period of time that was 87 years long. How many years are represented by a score? is the answer 2 or is it 12.43

*September 9, 2010*

**college physics**

the pressure is ether 30 or a 10

*September 8, 2010*

**math**

if a+b=c and c=8 and d+e=f and f=21 e=18 d=3 and e,d,c,and b are in a circle that sum is 20 what is the answer

*September 8, 2010*

**college cornerstone**

what time and financial constraints have you face since starting college? How did you deal with them

*August 29, 2010*

**math**

The measure of the supplement of an angle is 20 degrees more than three times the measure of the original angle. Find the measures of the angles.

*August 28, 2010*

**trig**

Two men on the same side of a tall building notice the angle of elevation to the top of the building to be 30o and 60o respectively. If the height of the building is known to be h =120 m, find the distance (in meters) between the two men.

*June 1, 2010*

**US history**

war..

*May 16, 2010*

**US history**

what were the effects of the nightly tv coverage of the vietnamese?

*May 16, 2010*

**7th grade**

what kinds of energy take place when you turn a light switch on?

*May 11, 2010*

**Chemistry**

a volume of 50mL of a standard HCl solution is needed to neutralize 50 mL of 1x10-2 M NaOH. what volume of this HCl solution is needed to neutralize 50 mL of 1x10-2 M Ba(OH)2

*May 3, 2010*

**chemistry**

what volume of carbon dixoide (CO2) will be produced if 2.90 moles of iron (Fe) is produced

*April 19, 2010*

**Math**

Mark hid a $10 bill inside his favorite book. He forgot the pages where he hid it. If the sum of the pages where the bill is hidden is 177, on what pages will Mark find his money?

*April 5, 2010*

**Math**

Thanks Bob. Can you show me how you came up with your answer. That is what I am struggling with Thanks

*February 20, 2010*

**Math**

assume that the speed of automobiles on an expressway during rush hour is normally distributed with a mean of 62 mph and standard deviation of 5 mph. What percent of cars are traveling faster than 62 mph? How would I work this problem out?? Thanks for any and all help anyone ...

*February 20, 2010*

**math - 5th grade**

If your circle is 27 sq in. Here is how you would work it out to find the radius. A(area)=3.14(pie) times R(radius) times R 27sq in. = 3.14 x R x R= 27sq in/3.14 x R x R= 8.59 sq in x R = 8.59 sq rt= 2.93 So your radius = 2.93 hope this helps

*February 20, 2010*

**algebra1**

Marcy has a total of 100 dimes and quarters. if the total value of coins is $14.05,how many quarters does she have?

*February 14, 2010*

**college**

A train departs its home station traveling at 50 mph. It is 400 miles from your location. How long will it take to arrive at your location?

*February 11, 2010*

**8th grade math**

how do you find the prime factors of 24

*January 19, 2010*

**math**

what are the prime factors of 24

*January 19, 2010*

**math**

5cars 3 balls 2 fish How many more children like cars than fish 5 cars 3 balls 2 fish How many few children like fish than balls

*January 6, 2010*

**physical science**

if a block of wood drooped from a tall building has attained a velocity of 78.4 m/s, how long has it been falling?

*January 2, 2010*

**Math**

How does the square root of -6i-8 equal 1 +3i?

*November 15, 2009*

**pre-algebra**

3 1/2 * 1 1/2

*September 30, 2009*

**Physics**

Explain further pls

*September 13, 2009*

**5th grademath**

i don't have a answer bec. there are no question

*September 11, 2009*

**math**

1. Number Sense: write three numbers that are greater than 1,543,000 and less than 1,544,000 2. Put the planets in order from the one closest to the sun to the one farthest from the sun. Earth 93,000,000 Jupiter 483,000,000 Mars 142,000,000 Mercury 36,000,000 Venus 67,000,000

*September 2, 2009*

**MATH**

A COPY MACHINE CAN DUPLICATE 18 PAGES IN 45 SECONDS. AT THIS RATE,HOW MANY PAGES CAN BE DUPLICATED IN 60 SECONDS?

*May 10, 2009*

**college algebra**

day in a half

*March 8, 2009*

**Math**

what is scale inteval

*February 8, 2009*

**science**

According to the rock cycle, which of the following transitions are possible? Assume an unlimited number of steps. A. An intrusive igneous rock becomes a sedimentary rock. B. A sedimentary rock becomes soil. C. A metamorphic rock becomes an extrusive igneous rock. D. All of ...

*January 28, 2009*

**science**

why do you think some stalactites grow without a stalagmite below them, or some stalagmites grow without a stalactite above them?

*January 26, 2009*

**CIVICS**

what does the department of justice do?

*January 23, 2009*

**9th grade**

Why did richard sell the anti-negro newspapers

*December 18, 2008*

**physics**

64.4

*November 11, 2008*

**civics**

I have another question. what examples can i write about the rights that the 10th amendment protects?

*October 31, 2008*