Monday
May 2, 2016

Total # Posts: 317

Physics
A block of mass m=25 kg is hung by a massless rope of length L=1.90 m from the ceiling of an elevator. The elevator has a downward acceleration of a=2.20 m/s^2. When the pendulum is set in a small amplitude oscillation, the period T of the pendulum is: A) 2.50s B) 3.14s C) 1....
May 2, 2016

Ingrid mixes 3.6 pounds of almonds with some raisins to make a trail mix. She divides the trail mix into 12 equal portions. Each portion weighs 0.7 pound. How many pounds of raisins did she use to make the trail mix? Express the answer to the nearest tenth.
April 13, 2016

Algebra, math
What happened when 1000 baseballs fell from an airplane?
April 12, 2016

Geography
If colonial boundaries have produced a large number of problems for African countries, could the contient's people revert to the boundaries that existed before European colonialism? What other solutions might there be to the problems created by Africa's borders?
April 11, 2016

chemistry
A reaction mixture of N2O4 and NO2 absorbs the heat given off in the combustion of 6.35 L CH4 measured at 24.7 C and 812 Torr. How many moles of N2O4 can be converted to NO2 as a result? CH4 + 2O2 --> CO2 + 2H2O Delta H = -890.3 KJ N2O4 --> 2NO2 Delta H = +57.2 KJ
March 22, 2016

chemistry
how many grams of solid calcium oxide must react with excess water to liberate the same quantity of heat as does the combustion of 24.4 l of methane gas (CH4), measures ar 24.7 c and 753 torr? CaO +H2O --> Ca(OH)2 Delta H = -65.2 KJ CH4 + 2O2 --> CO2 +2H20 Delta H=-890.3...
March 22, 2016

Math
Your computer supply store sells two types of laser printers. The first type, A, has a cost of \$86 and you make a \$45 profit on each one. The second type, B, has a cost of \$130 and you make a \$35 profit on each one. You expect to sell at least 100 laser printers this month and...
March 4, 2016

You are welcome!
March 4, 2016

Good job! I am not sure that #6 and #8 are correct. I do not know if they are correct. Not saying they are wrong just saying that I can't be sure! All the rest look great!! 😁😁😁😁😁
March 4, 2016

health check my answers
2 is A. Sorry! I didn't catch that!
March 4, 2016

health check my answers
Wonderful job!! I believe they are all correct! 😁😁😁
March 4, 2016

Maths literacy ,life science,history,geography
I don't understand your question... Please clarify! 😁😁😁😁
March 4, 2016

Geometry B: Unit 3: Similarity Lesson5 Practice
March 4, 2016

5 is correct. I am not 100% sure about 3 & 4. So sorry!
March 4, 2016

2 is correct!
March 4, 2016

1 is correct. I will continue checking the others!
March 4, 2016

Pre calculus DAMON CAN YOU HELP?
Does anyone know how to solve this?
March 4, 2016

Pre calculus
Your computer supply store sells two types of laser printers. The first type, A, has a cost of \$86 and you make a \$45 profit on each one. The second type, B, has a cost of \$130 and you make a \$35 profit on each one. You expect to sell at least 100 laser printers this month and...
March 4, 2016

English
Absolutely!! Take your time! 😁😁😁
March 4, 2016

English
Hi Alexia! I would love to work through these questions with you. Please tell me what you think the answer is for number 2. I will check it and give you feedback! :)
March 4, 2016

chemistry
1. You don't have an arrow but I assume it goes between N2 and 2NH3. 2. You have no Kp or Kc listed. 3. You won't make any hydrogen atoms. Perhaps you meant, "How many atoms of hydrogen will be in the NH3 formed."
March 4, 2016

math
Please tell me what you think! :)
March 4, 2016

statistics
Okay, go ahead and make a list of all that you can think of. I will be happy to go over it with you!! 😁😁
March 4, 2016

CHEMISTRY! HELP
I'm not sure how to do or show the work for these two questions. A) & B.)!! please anyone help: A.) Suppose a chemical reaction starts with 5.00 g of copper (i) nitrate and 2.00 g of magnesium chloride. Balanced Equation: 2 CuNo3 + MgCl2 ---> 2 CuCl + MgNO3 1.) ...
February 23, 2016

AP Chem
1. Van't Hoff factors depend on the concentrations of the dissolved solute species. Why would a dilute solution have a Van't Hoff factor closer to the ideal value? a. because in dilute solutions solute species are less likely to bump into each other and pair up. b. ...
January 24, 2016

math
Try wolframalpha[dot]com
January 24, 2016

Math
The given angle is in standard position. Determine the quadrant in which the angle lies. -25° A. Quadrant III B. Quadrant II C. Quadrant IV D. Quadrant I
January 19, 2016

This is pretty simple. Just multiply 16x75. Your answer Wil be in centimeters. Then just convert the centimeters to meters.
January 19, 2016

percentages
140% of what is 35? How do I solve it?
January 12, 2016

A car traveling at 72 km/hr hits a tree. the driver, who has a mass of 55.0 kg comes to a rest 0.10s after the impact. What is the force that acts on the driver?
December 11, 2015

Pre calculus
Thanks!!! :)
December 3, 2015

Pre calculus
Use the given conditions to write an equation for the line in point-slope form. Passing through (-5, -7) and (-8, -6)
December 3, 2015

Simple pre cal
Thank you both!!! :)
December 3, 2015

Simple pre cal
Is the relation a function? {(14, 9), (15, 8), (8, 7), (1, 9), (15, 2)}
December 3, 2015

algebra
Sam spent 36.00 more than Lisa.They spent 75.00 total.How much did they spend each?
December 2, 2015

social justice
what are examples of distributive, retributive, and communative justice?
November 30, 2015

math
Explain why the graph of g(x) = 1/x has a horizontal asymptote. What is the equation of this asymptote? Will all reciprocal functions have the same horizontal asymptote?
November 15, 2015

Math
anna made 400 quarts of lemonade. she poured the lemonade into the containers. each container holds 4/7 of a quart. how many containers did anna use
November 9, 2015

Algebra
Maria starts walking at 8:00 at 4 miles per hour. Nichole starts walking at 8:12. At what constant rate of speed will Nicole need to walk to catch Maria at 8:42?
November 4, 2015

Social Studies
And one more thing...She is correct it is Boston Tea Party, I know I just read 10 pages on it and it says in the book and it is right on the test.
November 4, 2015

Social Studies
Ms. Sue...I am taking the same test, and these ARE the correct answers, I don't know what you are looking at but they are correct.
November 4, 2015

Physics
You push down on a book of inertia m resting on a table with a force directed at an angle θ away from vertical. The coefficient of static friction between book and table is μs. If θ is not larger than some critical value, you cannot get the book to slide no ...
October 29, 2015

Precalculus
Q: A ship leaves the port of LA and travels 120 miles on a bearing of S47ºW and then 110 miles on a bearing of N80ºW. Find the total distance traveled South and West and also its bearing from the port of LA. I have found the distance traveled South and West (approx. ...
October 26, 2015

Chemistry
1. Use the following balanced net ionic equation to determine the volume of 6.0 M HNO3 needed to react completely with 5.00 g of copper. 8H+(aq) + 2NO3-(aq) + 3Cu(s) → 2NO(g) + 4H2O(l) + 3Cu2+(aq)
October 23, 2015

social studies
It is Second Continental Congress, I just took the test and got a 100%! :)
October 23, 2015

Math
The ratio of the number of men to the number of women to the number of children in a theater is 3:5:2 there are 69 men in theater A.how many more are there in the theater B.how many children are there in theater
October 20, 2015

chemistry
A voltaic cell can be built using the reaction between Al metal and O2 from the air. If the Al anode of this cell consists of 65 g of aluminum, how many hours can the cell produce 1.5 A of electricity, assuming an unlimited supply of O2?
October 18, 2015

Math
What is 12 1/9+10 2/3? I need help please!;]
October 15, 2015

Foley
Math angle 1 is complementary to angle 2. angle 2 is supplementary to angle 3 equal to 126 degrees. find measure angle one
October 2, 2015

Physics
A 41 kg child sits in a swing supported by two chains, each 1.4 m long. If the tension in each chain at the lowest point is 261 N, find the child’s speed at the lowest point. (Neglect the mass of the seat.) Find the force of the seat on the child at the lowest point.
September 26, 2015

Math
Find two consecutive odd integers such that the sum of four times the larger and twice the smaller is 194. Help Thank you!
September 23, 2015

Math
Find two consecutive odd integers such that the sum of four times the larger and twice the smaller is 194. Please help! Thank you!
September 23, 2015

Math
is it 2704 tiles?
September 16, 2015

Math
Mrs. Cress's table measures 5 ft wide and 8 ft long. She wants to cover the table with 3 in square tiles. How many tiles will she need? Help Thank you!
September 16, 2015

Math
Are 1.6 square meters & 16 tenths square meters the same?
September 8, 2015

music appreciation
The basic framework for ordering music through time is the A. syllable. B. meter. C. value. D. phrase. I'm pretty sure it's B, but I really wanna ace this test.
September 7, 2015

psychics
you throw a ball straight upward into the air with a velocity of 20.0 m/s, and you catch the ball some time later. a) how long is the ball in the air b)how high does the ball go c) what is the balls velocity when you catch it I don't get how you are suppose to figure this ...
August 20, 2015

Precalculus
Water is flowing at the rate of 50 m^3/min from a conical reservoir (vertex down) of base radius 45 meters and height 6 meters. What is the water level when the reservoir has 5000 m^3 of water left in it?
August 16, 2015

Calculus
A box with a square base and no top is to have a volume of 32 ft3. What dimensions use the least amount of material (in other words what dimensions give minimum outside surface area)?
May 24, 2015

math
the areas of the rectangular faces are: 90, 54, and 60. What is the volume of the box?
April 29, 2015

math
a rectangle has an area of 48 square yards. For what whole number values of length and width will the rectang,e have the smallest perimeter?
April 29, 2015

math
for what whole number values of length and width will the rectangle have an area of 60 square yards and a perimeter of 38 yards?
April 29, 2015

A very large firecracker explodes in the hallway into 3 fragments. Physics students rush to the scene to enrich their knowledge of the law of conservation of momentum. They report that Fragment 1: mass=1.23kg, v=8.70m/s, north Fragment 2: mass =2.60kg,v=6.10m/s,east fragment 3...
April 28, 2015

He drops a ninja ball device from a height of 10.0m. The mass of the enter device is 190g and the mass of the top (smallest) ball is 2.90g A) calculate the momentum of the device as it hits the ground (ignore air resistance) I know that this answer is 2.66 for sure B) if the ...
April 28, 2015

MATH
Actually, you can do it to only take 17 minutes. Betty takes Abby across, leaves her there, and rows back (4) Then Cassie and Dale row over together, and Abby takes the boat back (11) Then Abby and Betty row to the other side together(2) Grand total: 17
April 27, 2015

Math
Take a four digit number (abcd) and repeat it to make an eight digit number (abcdabcd). This eight-digit number always has at least three different prime factors, unless you start with a certain four-digit number. Which number is it?
April 15, 2015

Math
On Tuesday, Leslie spent 47 minutes on math homework, 39 minutes on science homework, 52 minutes on English homework, and 44 minutes on history homework. How much time did Leslie spend doing her homework on Tuesday?
April 6, 2015

PHYSICS HELP
Suppose the aliens watching the show are on the surface of Mars. Mass of Mars: 6.42 x 10^23 kg Radius of Mars: 3.394 x 10^6 m Calculate; A) the weight of a 40.0 kg alien on Mars B) the weight of 40.0kg alien on earh Earth-sun distance:1.50x10^11m Mars-sun distance: 2.28 x10^11...
March 26, 2015

Geometry
A 3-foot diameter wheel travels at a rate of 45 feet per second. How many seconds does it take for the wheel to make 100 turns?
March 19, 2015

Geometry
A wheel turns at a rate of 12 turns every 5 seconds. If the wheel travels at a speed of 225 inches per second, what is the wheel's diameter?
March 19, 2015

L.A.
Is 3 B?
March 11, 2015

L.A.
is 1. B? 2. A? 3. C? Thanks for the help!
March 11, 2015

L.A.
Can you help me please? Thanks!
March 11, 2015

L.A
Hey Callie can you help me with the some questions? Thanks
March 2, 2015

Statistics
Among the population of criminal justice students, the average score on the final exam was 74, with a standard deviation of 11.6. What is the probability of randomly selecting a student who earned an A (90 or better)?
February 27, 2015

social studies
Alright.
February 23, 2015

social studies
Confucius believed that society would do well if everyone always did his or her... A. duty*** B. prayers C. jobs D. best I think it is A
February 23, 2015

Social Studies
Come onnn my it's the last answer I neeeedd!!!
February 23, 2015

Stats
A basketball player makes 80% of her free throws. Recently during a very close game, she shot 5 free throws near the end of the game and missed 3 of them. The fans booed. What is the probability of her missing 3 (or more) free throws out of 5? Set up and conduct a simulation (...
February 8, 2015

Language Arts - Iambic Pentameter
She takes forever to answer one of my friends.
January 23, 2015

language arts
You really wanted Helper to get a bad grade? Stupid!!!
January 21, 2015

language arts
You stink Mrs.Sue!!! Just give the kid the stupid answer and be done with it.
January 21, 2015

language arts
Ms. Sue is no help. Anyway, the answer is C.
January 21, 2015

History
I'm writing a research paper and i need help finding out what these me on a website. • Timeliness: • Objectivity: • Writing Style and Mechanics: • Graphics: • Links:
January 18, 2015

Math
1. What is the range of the ages shown in the stem-and-leaf plot? 3|0,2 4|1,4,4,5 5|3,5,8,9 6|2,2,2,5,6,8 7|5,5,6 A. 4 B. 6--- My answer C. 34 D. 46 What is the median of the ages shown in the stem-and-leaf plot? 58 58.5 59---- my answer 59.5 What is the first quartile (Q1) of...
January 17, 2015

Chemistry
How to perform a pH Titration of 25 ml of 50 mM Phosphoric acid from pH 1 to pH 13 with 1 N NaOH (including standardizing the NaOH).
January 17, 2015

English
Q1 Is A I am 98% sure!
January 17, 2015

Literature
Thanks i got it now
January 17, 2015

Literature
but i still don't get it
January 17, 2015

Literature
Dr. Martin Luther King spoke at the funeral of three of the little girls killed in the Birmingham bombing. In his eulogy, he said, “The innocent blood of these little girls may well serve as a redemptive force that will bring new light to this dark city.” He also ...
January 17, 2015

Literature
The civil rights movement consisted of many events, such as freedom rides and sit-ins. Some of the events, such as fires and murders, were violent and unsettling. But the killing of the four little girls in Birmingham is considered one of the most significant events. Why do ...
January 17, 2015

Physics
A boat crosses a river of width 115 m in which the current has a uniform speed of 1.84 m/s. The pilot maintains a bearing (i.e., the direction in which the boat points) perpendicular to the river and a throttle setting to give a constant speed of 1.1 m/s relative to the water...
January 16, 2015

physics
Calculate the force of gravity on a 16 kg mass at Earth's surface. The mass of Earth is 6. 1024 kg, and its radius is 6.4 106 m.
January 13, 2015

chemistry
matts moped holds 1.9 gal of gas how many milliliters is that show work
December 16, 2014

U.S. History Help!!!!!!!
No, #3 would be A. Loyalists.
November 26, 2014

physics
A 78 g basketball is launched at an angle of 45.4◦ and a distance of 10.1 m from the basketball goal. The ball is released at the same height (ten feet) as the basketball goal’s height. A basketball player tries to make a long jump-shot as described above. The ...
November 20, 2014

socials studies 9
why do you think lawyers in the land claims trials refer to the royal proclamation of 1763 more than 200 years after it was proclaimed? I do not understand this question..
November 8, 2014

1. Pages:
2. 1
3. 2
4. 3
5. 4
6. Next>>