Thursday
April 24, 2014

Posts by Janelle


Total # Posts: 74

Chemistry
How many moles of HCl are consumed by the reaction of .150 moles of magnesium?

Math
F(x)= -2x^2-4x+5

Physics
can you show the steps to how to answer the question as well ? just the steps would be fine :)

Physics
A mass of 6.10 kg rests on a smooth surface inclined 39.0o above the horizontal. It is kept from sliding down the plane by a spring attached to the wall. the spring is aligned with the plane and has a spring constant of 126 N/m. How much does the spring stretch?

chemistry
A 2.30 gram sample of iron combines with chlorine gas to form an iron chloride with the weight of 7.25 grams. what is the weight of chlorine added?

physics
Front wheel drive is more effective than rear wheel drive on ice or snow because what?

physics
2 sticks of uniform density, but 1 stick is half thelength of the other, are standing upright on a table. Both are allowed to fall at same time Which stick hits table first

physics
A unicycle has only a single wheel and its rider sits above that wheel, pedaling furiously to stay upright. When shshe is traveling straight forward at a steady pace, she can maintain stability by always doing what?

physics
A unicycle has only a single wheel and its rider sits above that wheel, pedaling furiously to stay upright. When shshe is traveling straight forward at a steady pace, she can maintain stability by always doing what?

physics
Consider 2 automobile accidents in which identical cars are driven into solid wall at 30 mph and 60 mph, respectively. compared to the car traveling 30 mph, the car 60 mph transfers what?

physics
Consider 2 automobile accidents in which identical cars are driven into solid wall at 30 mph and 60 mph, respectively. compared to the car traveling 30 mph, the car 60 mph transfers what?

physics
When 2 balls collide head on where one ball is moving and one ball is stationary, it is possible that the moving ball will transfer its entire motion to the stationary ball. This most likely happen when?

physics
a cheerleader has a baton that is 1 meter long and has a 100 gram mass on both ends another cheerleader has a baton that is 0.5 meterlong and has 100 gram masson both ends. Neglecting the mass of the rod holding the masses together, which baton will be easier to spin when gras...

Physics
a car starts traveling 10km from home, 2 minutes later it is 16km from home, and 5 minutes later it is 25km from home. What is the car's displacement in the first 2 minutes

Calculus 1
You have to use the chain rule. ln(7) * 7^(sin x) * cos (x)

Physics
Block 1 (2.5kg) is on the surface of a frictionless inclined plane that makes an angle of 20 degrees with the horizontal. Assume g = 10 m/s2 magnitude of the acceleration of block 1 down the incline plane is 3.4 m/s2 How far does block 1 travel down the plane in 1.5 s after it...

geometry
Ava's aquarium is 10 in. tall,15 in. long,and 8 in. wide.The aquarium is 95% filled with water.How many cubic inches of water are in the aquarium?

geometry
A parking lot has seventy-three parking spaces numbered from 1 to 73. There are no cars in the parking lot when Jillian pulls in and randomly parks. What is the probability that the number on the parking space where she parks is greater than or equal to 27?

statistics
A psychologist wants to estimate the variance of employee test scores. A random sample of 18 scores had a sample standard deviation 10.4. Find a 90% confidence 2 interval for the population variance. What assumption, if any, have you made in calculating this interval estimate?

MATH 157
ty

MATH 157
How do I determine the real number solution for the following problem: The problem reads : Determine the number of real-number solutions to the equation from the given graph. x^2 - x + 15 = 0, given the graph of y = x^2 - x + 15

algebra
The number of lions is 42 more than the number of tigers. Five times the number of tigers is 24 more than two times the number of lions. What is the number of lions? What is the number of tigers?

Chemistry--Solids
Am I to assume your taking CHE 111 General Chemistry 1 for Dual Credit? Because this seems very familiar.

Math
If the sides of a triangle are x, x+5, 2x+5. For what values of "x" would the triangle have a perimeter of at least 72?

science
which planet other than earth may be livable by humans?

algebra
Completely factor the expression 28x^2-196xy+343y^2

algebra2
(?)=b

algebra2
what is the missing variable? 3a^2bx(?)=6a^2b^2x

algebra2
a4b(a+ab+3)

algebra2
how do you factor this? a4b + a5b + 3

algebra2
non factorable

algebra2
how can you factor this? x2 + 25

algebra2
no its (x+5)(x-3)

algebra2
so is it 3x^2+15x?

algebra2
how do you factor this? x(x-3)+5(x-3)

algebra2
yes this helps so my answer would be 3Rx(5-e)

algebra2
how do you factor 15Rx - 3Rex

algebra2
how do you factor this completely? 105x6y2z3 - 98x4y3z2 + 84x3y4z5

algebra2
how do you factor 48x3z5y - 36x3z3y4 + 48x2z5y

geometry
an angle's measure is twice the measure of its complement. The larger angle is how many degrees greater then the smaller angle?

Physics
20

10th grade Chemistry
The most reactive group of the nonmetal are the?

Algebra1A
A box in the shape of a rectangular prism has a volume of 56 cubic inches. If the length of each side is multiplied by 2, what will be the approximate volume of the resulting box?

Chemistry
You have KI and Pb(NO3)2 being mixture to give you an insoluble salt. What is the ionic equation per insoluble salt.

12th grade
A bicycle wheel has a radius of 0.330 m and a rim whose mass is 1.20 kg. The wheel has 50 spokes, each with a mass of 0.010 kg. a.) Calculate the moment of inertia of the rim about the axle. b.) Determine the moment of inertia of any one spoke, assuming it to be a long, thin r...

11th Grade math
2 2/3 +1 1 1/3 /6 2/5

Pre-calculus
f(x)=(1/5)^x=5^-x I plugged in both into my caluculator but I only see one line, are they exactly the same? and how do I find the asymptotes?

Engish Lang
give me the title of a simple story that I can get setting, 4 prblems, a climax and 4 solutions.

Engish Lang
Story Writing - I need to get an idea of a setting to write the climax and theme of a story.

Social Studies
And I mean at a university, not necessarily a high school or middle school. Thanks!

Social Studies
What are some classes that are regularly offered in European countries but are not offered in the U.S.?

french
What is Bastille day(14th July) in France?

History
How did people show respect to Castro? Did they bow down to him or say anything when he passed by? Thanks for your help.

3rd grade science
I need INFORMATION on the weather. Based on facts and opinions

6th grade english
i am doing reading and we are doing this down and ot work and here is what it says the answer to each clue is a word or phrase contaning either the ord down or the word out.... an the gustion says the end of daylight

Math
Media service charges $20 for a phone and $30/month for its economy plan. The equation c=30t +20 describes the total cost,c, of operating Media Services phone for t months. The total cost for 4 months of service is $140? If a customer has only $90 available, how many months of...

Literature - short story
d)symbol

Literature - short story
In"Young Goodman Brown",Faith's pink ribbons are an example of a a)genre b)parable c)fable d)symbol

Literature - short story
In "A Pair of Silk Stockings," the silk stockings are a symbol of a)Mrs. Sommers's inability to handle money. b)Mrs. Sommers's lack of concern for her children. c)Mrs.Sommers's selfish needs. d)Mrs.Sommers's desire for attention.

Literature - short story
b)hypocrisy

Literature - short story
In "The Private History of a Campaign That Failed", Twain writes, "We are equal to the occasion. In our response there was no hesitation, no decision". This type of writing is an example of a)a motif b)hypocrisy c)an anedote d)mock heroics

Poetry
Which of the following poems is an English sonnet a)The Red Wheelbarrow b)Stopping by Woods on a Snowy Evening c)Into My Own d)Travel

poetry
the Grass

poetry
who is the speaker in Sandburg's "grass"

novel
1)b 2)c 3)c 4)d 5)b 6)c 7)b 8)b 9)a 10)c 11)a 12)c 13)a 14)b 15)d 16)d 17)a 18)c 19)a 20)d

Literature
B-Sylvia is experiencing falling in love

statistics
Three players enter a room. As each player enters, a coin is flipped (independently of the other players) and either a red or blue hat is placed on that player's head. The players can not see the colors of their own hats, only the colors of the other two players hats. Once...

Math
I'm stuck on this 1 math problem. I've tried many ways to figure it out, but I can't. The problem is; 2(3x-5)>2x+6.

inequalities
I am absolutely stuck on this inequality. It is: 2(3x-5)>2x+6. I'm not quite sure how to solve it.

inequalities
I'm stuck on this 1 math problem. I've tried many ways to figure it out, but I can't. The problem is; 2(3x-5)>2x+6.

science
during prophase one of meiosis, are there 46 homologus pairs per cell or 23?

AP CHEM-- check work?
How many moles of ATP must be converted to ADP by the reaction ATP(aq) + H2O ---> ADP(aq) + HPO4-2(aq) + 2H+(aq) delta-G*= -31 kJ to bring about a nonspontaneous biochemical reaction in which delta-G*= +372 kJ? I did my work out like this..: 372 kJ x 1 mol/-31 kJ = -12 mol ...

english
the unknown citizen. Please clarify your three words and ask it as a question. what is the situation [speaker, setting, audience and occasion] in the poem the unknown citizen by w.h. auden. Please tell us your thoughts and we'll be glad to critique it for you. 2.

Earthquakes
Can subduction zone earthquakes be caused by recent wet weather? Yes, Water can act as a lubricant for the plates.

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