Wednesday
April 16, 2014

Posts by Angelica


Total # Posts: 104

math
a jar contains 26 fluid ounces of spaguetti sauce. How many cups of spaguetti sauce do 4 jars contain?

Math
(4k+5)(k+1)=0

Math
My answer, that I got, was 225.

Chemistry
How many grams of NaCl are present in a 300 grams salt solution containing 9% NaCl ?

algebra
Beatriz is creating graphs for her city’s Parks Department. Beatriz is trying to persuade the Parks Department to put in more gazebos for shade. For a local park, Beatriz wants to demonstrate the attendance as it changes every week. She also wants to show the temperature ...

physics
The amount of energy needed to power a 0.10-kW bulb for one minute would be just sufficient to lift a 1.0-kg object through a vertical distance of

chemistry
N2(g) + 3H2(g) → 2NH3(g)+ 22,000 cal equals how much ΔH

Calculus
Find constants a and b in the function f(x)=axe^(bx)such that f(1/7)=1 and the function has a local maximum at x=1/7. a = b =

Science
The rms(root-mean-square) value of a periodic signal s(t) is defined to be rms [s]=(1/T Ss^2t dt)^1/2 where T is defined to be the signal's period: the smallest positive number such that s(t)=s(t+T). What is the rms value of the sinusoid s(t)=Asin(2πf0t)? (Again, writ...

Science
What is the period of the sinusoid s(t)=Asin(2πf0t)

College Algebra
I am using Hawkes Learning System (8.7 Nonlinear Systems of Equations)and my problem is x^2+y^2=13 and y+7=x^2. The answers I came up with are 2 square root of 3 and 3 for my x's. And I received (5,-4) as the y-coordinates. Is this correct?

social studies
why did the gap between the rich and poor weaken the shang

7th grade math help asap plz
i'm in the 6th grade and i know the answere to that!!

Math
which fractions are less than 5/6? 2/5 1/12 25/40 10/20 8/9 how do i know which is greater or less?

Math
which fractions are less than 5/6? 2/5 1/12 25/40 10/20 8/9 how do i know which is greater or less?

literature
What does the poet find ironic about her situation? In the poem In memory of M.B by Anna Akhmatova.

Geometry
Two straight lengths of wire are placed on the ground, forming vertical angles. If the measure of one of the angles formed is 72°, what are the measures of the other three angles? Explain your answer

Physics
A car starts from rest and travels for 7.0 s with a uniform acceleration of +2.1 m/s2. The driver then applies the brakes, causing a uniform acceleration of -2.0 m/s2. If the brakes are applied for 1.0 s, determine each of the following. 12.6 m/s at braking period. How far has...

math
62 more than the quotient of 18 and 3

chemistry
Describe in detail, the steps a student needs to carry out to accurately obtain a 500 ml solution of .100 M HNO3 from a solution of 1M HNO3

physics - help !!!!!!!!
The magnitude of a vector is always : - a positive number - greater than 1 - an integer - none of the above. Thank you

government
C New judge is appointed

physics
The National Transportation Safety Board is testing the crashworthiness of a new car. The 1.87 103 kg vehicle, moving at 11.3 m/s, is allowed to collide with a bridge abutment, being brought to rest in a time of 0.463 s. What force, assumed constant, acted on the car during im...

chemistry
What is the volume of CO2 at 25 degrees C and 1.3atm if 10.0g of Cburns at STP?

Science
The rest stops the driver made are included in the calculations because that is hoe the problem is defined. However, suppose the bus driver's manager wants to know the average speed at which the driver was actually driving the bus that day while he was on the road. In this...

punctuation and grammer
My garden is full of water,because of yesterday's rain. Is this correct?

Anatomy
what is the white matter tracts in the ventral portion of the midbrain?

Math
Thank you I understand know

Math
Write the word form of the number that is 10,000,000 greater than 6,021,849.

Reading
Thank you so much I clearly understand now

Reading
Mary Olivers poem the journey explain the decision that the "you" in the poem made, and whether or not you think it was the right decision. I don't understand what their trying to say

Math
B.it has 4 right angles

economics
why was the federal reserve established ?

Language Arts
Pronuniation

11th grade
I need help interpreting a quote...." in this world goodness is destined to be defeated ".

Performing and Visual Arts
Why do humans create and perform?

U.s Gov
The fourth amendment was written in part to ensure the government did not allow ?

math
Help me with this please. I need statements and resons.

math
Given: line nm is congruent to qr; angle m and angle r are right angles; line mp is congruent to ro. Prove: triangle nmo is congruent to triangle qrp and angle n is congruent to angle q

math
inverse of y=-√(9-x^2 )

math
Find the inverse for graphing y=f(x)=3^-x

English 101
b,a,b,b,a,c,a,b,c,a,a,b

math
(x-1)(x+5) for x^2+4x-5

Chemistry
A popular brand of automobile radiator antifreeze advertises that their product (ethylene glycol; C2H6O2) provides engine protection from temperatures of -64C to 135C when mixed with water in a 50%/50% mix. What is the boiling point elevation and freezing point depression prov...

answer please!!!!! Math
I'm having trouble with these 2 problems. (-7+p)(8+p) & (p-7)(p+8)

math, answer please!
I don't understand how you do these 2 problems. (p-7)(p+8) & (-7+p)(8+p)

help please, math.
(-7+p)(8+p) I don't understand this at all.

Math
(p-7)(p+8)

Language
friendliness, candied or candies, handiness, envied or envies it may help to use a dictionary if you are unsure of a word. They provide suffixes. :)

Latin prefix
don

Biology
What is the process of cellular respiration and why is it so important? Thank you.

Biology
What is the process of cellular respiration and why is it so important? Thank you.

Chemistry --really need help!
nevermind i think I get it now... thanks for your help

Chemistry --really need help!
Can you explain why (3*.3*.05) for H2 is subtracted from .2?

Chemistry --really need help!
I am really struggling with these problems!! A reaction mixture that consisted of 0.20 mol N2 and 0.20 mol H2 was introduced into a 25.0 L reactor and heated. At equilibrium, 5.0% of the nitrogen gas has reacted. What is the value of the equilibrium constant Kc for the reactio...

Chemistry
The initial pressure of BrCl(g) in a reaction vessel is 1.6 mbar. If the vessel is heated to 500 K, what is the equilibrium composition of the mixture? See this table for data on the reaction. P Br2 ? mbar PCl2 ? mbar P BrCl ? mbar

Chemistry
This might seem silly but in the rxn O^2- + H2O --> 2OH-, can OH- behave as both the conjugate acid and the base?? Or is it one or the other?

Chemistry
Benzene has a vapor pressure of 100.0 Torr at 26°C. A nonvolatile, nonelectrolyte compound was added to 0.309 mol benzene at 26°C and the vapor pressure of the benzene in the solution decreased to 60.0 Torr. What amount (in moles) of solute molecules were added to the ...

Chemistry
But if I cross multiply wouldnt it be .309/100 Torr since the pressure was 100 Torr when moles were .309. Once I solve for n, that is the amount of solute of Benzen--but I need the amount of solute molecules added. So to find that would I just find the difference in the moles ...

Chemistry
Benzene has a vapor pressure of 100.0 Torr at 26°C. A nonvolatile, nonelectrolyte compound was added to 0.309 mol benzene at 26°C and the vapor pressure of the benzene in the solution decreased to 60.0 Torr. What amount (in moles) of solute molecules were added to the...

Chemistry
That is what I tried using...I solved for m for when P= 100 Torr, then used that to set up an equation when P=60 Torr to find the difference, but my answer is consistently incorrect. I am setting up the algebra incorrectly but am not sure what I am missing

Chemistry
Benzene has a vapor pressure of 100.0 Torr at 26°C. A nonvolatile, nonelectrolyte compound was added to 0.309 mol benzene at 26°C and the vapor pressure of the benzene in the solution decreased to 60.0 Torr. What amount (in moles) of solute molecules were added to the ...

Math
Factor completely. Always begin by factoring the GCF. ax(squared)p-8pa-2axp

science
what isthe sun main thing on earth

5th grade math
what is the greatest common factor of this number pair? 24,28 -the answer is 4 what is the least common multiple of this number pair? 27,36 -the answer is 3

biology
hey does prokaryotes cells have cell walls

biology
and the cell is the most basic unit of life

biology
yes the cell theroy states the all liveing things contain cells a cell comes from another living cell and hold snd ill get back to you

biology
but also what puts it back to the amosphere

biology
what removes crbon from the amosphere

biology
what substance enters the food chain through photosynthessis

biology
sorry but what is the sequece of cellular respiration what you gave me is right just not what i needed

history
may i ask what grde are you in and i may be able to help you

9th grade
what is the cellular respiration formula

colloids example
what are the examples of suspension

Health Care
especially if you have braces on

Health Care
how do you use baking soda and salt to whiten your teeth. if you can then please do list some directions, thanks

Health Care
is dazzlewhite a good thing to use to whiten your teeth?

English
I love this poem, I couldn't have done better myself

Math
mathmate you are a really smart person

english 8
how am i supposed to know

english 8
I need a metaphor for Happiness, I can't think of one. please help;-)

english 8
could someone give me a metaphor which descrbes happiness

english/poetry
thanx

english/poetry
What poet/songwriter wrote these words? Like a bird on the wire Like a drunk in a midnight choir I have tried in my way to be free Like a worm on a hook Like a knight from some old-fashioned book I have saved all my ribbons for thee If I have been unkind I hope that you can ju...

Science
What is a cell wall or cell membrane?

2nd grade math
Danielle has 18 marbles. All the marbles are either black or gold. There are 4 more gold marbles than black. How many black marbles are there.

8th grade physical sience
Well obviously if you are referring to the carbonate ion its ionic compound is CO3^2- so it would be gaining two electrons in the outermost shell. Therefore making the overall charge of negative two.

MATH
I AM A NUMBER. ROUNDING TO THE NEAREST THOUSAND MAKES ME 1,000. ALL MY DIGITS ARE EVEN, THEIR SUM IS 12, THEY ARE IN ORDER FROM GREATEST TO LEAST, AND NO DIGIT IS REPEATED. WHAT NUMBER AM I?

S.S 8 grade
Why do you think King George III refused to consider the colonist' Declaration of Rights?

Algabra
What is 3 x -2=

social studies
Name the middle colonies. Where were they located

Geometry
Which statement is true? Select one of the options below as your answer: A. Two angles can be complementary and equal. B. Two angles cannot be equal if they are complementary. C. An angle can be complementary only if it is 90°. D. Only three angles can be supplementary.

American History
so, go back to the actual question,how did isolationist beliefs affect immigration policy during 1920s? Please give me some ideas!THANKS!

American History
How did isolationist beliefs affect immigration policy during 1920s? Is nativism similar to isolationism? I only know how the nativist sentiment affected the immigration policy, but I don't know about the isolationist beliefs. Please explain. THANKS A LOT!

Math
Please respond quick

Math
how to estimate with 1-digit divisors

Algebra 1
When You Cry Over Spilt Milk.

Music
How do i put graphic notation into a composition table ???????????? Thank you for using the Jiskha Homework Help Forum. Here is a site that even shows an example: http://www.upto11.net/generic_wiki.php?q=musical_notation

math angles
find the measure of m<ABC,m<DBC? we need more information then that... well in order 2 solve dis u need and diagram or something like a graph what is 25-2 + 180 and 30-2 +180 whats 25-2+180

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