Thursday
September 29, 2016

Posts by Katherine

Total # Posts: 574

Science
Give me the answer pleaseeeeeeeeee i rally have to know it I just have this one question :( ... I know the answer but I don't know how to solve it . 😔
September 10, 2016

Science
If a ball is thrown upward on Mars with an initial velocity of 10.0 m/s and lands 1.50 m below its launch point 5.54 seconds after it is thrown , what is the local acceleration due to gravity one Mars .... Plzzzzzzzzz answer it's really important I have to submit it ...
September 10, 2016

Physical science
To pass a slow vehicle within the length of the passing lane roger got up well over the speed limit . He then spotted a police cruiser coming around the corner and hit the brakes . If he braked at 6 m/s^2 , and it took him 1.50 seconds to get back to 40 m/s , what speed had he...
September 10, 2016

Algebra
True or false? Negative numbers are closed under addition. Give a counterexample True or false? Prime numbers are closed under subtraction. Give a counterexample True or false? Natural numbers are closed under division. Give a counterexample
August 15, 2016

math
ohhhhhhhh thank you so much but yeah i was wondering too because there was no negative signs but i think there was a typo
August 12, 2016

math
So i was going over a problem that i didnt understand which is What is the slope of the function described in the table below? x I y 0 | -3 2 | -2 4 | -1 6 | 0 the choices were f) -3 g) 1/2 h) 2 J) 3 i know that the answer is g because my family told me but i dont understand ...
August 12, 2016

Ela
Thank you so much(:
August 9, 2016

Ela
i have searched and there was barley articles with 1000 words or more and i cant go on new york times because im not allowed to pay .. please help me
August 9, 2016

Ela
I need an article thats local (new york city) and it has to have at least 1000 words and published in a major newspaper. Can someone help me find an article?
August 9, 2016

Math
Which of the following is equivalent to the expression 8 to the -5 power times 8 to the second power A) 1/8 to the 7 power B) 1/8 to the 3 power C) 8 to the 3 power D) 8 to the 7 power I was in between b and c but im pretty sure its c is it?
August 8, 2016

Chemistry
How much solid ammonium chloride would be needed to make 100 mL of a 0.5M solution?
May 18, 2016

Chemistry
1209
April 18, 2016

Language Arts
I think its A because it had 3 dependent clauses into one sentence, like my mom cant stand alone. A dependent clause is a clause that cannot stand alone. And just so you know I am not guessing, I am really trying to get this i just don't quite understand
March 10, 2016

Language Arts
Please Reed I think its A i think i got it i just need this please
March 10, 2016

Language Arts
Which of the following sentences contains a dependent clause? a) my mother, who never wastes anything, rinsed and saved the take-out boxes b) we were running late and, we had to skip stopping by the post office. c) I had never been to New York before this spring d) you should ...
March 10, 2016

Language Arts
UNder A SPREADing CHESTnut tree capital letters = stressed is this right?
March 10, 2016

Language Arts
My mother, and who never wastes anything
March 10, 2016

Language Arts
Okay, now I get it, so its A
March 10, 2016

Language Arts
okay, I think I understand. So would it be D then? Because it doesn't have a lot of details? And thanks for helping
March 10, 2016

Language Arts
Which of the following sentences contains a dependent clause? a) my mother, who never wastes anything, rinsed and saved the take-out boxes b) we were running late and, we had to skip stopping by the post office. c) I had never been to New York before this spring*** d) you ...
March 10, 2016

Algebra 1
1. A company is deciding whether or not to hire a new worker. The company must pay the worker hourly and cover a daily cost for insurance. The cost to pay an hourly worker for one day is represented by the function y = 8x + 25, where x is hours. What is the y-intercept, and ...
March 8, 2016

4th grade math
I am really not sure but I think it's $135
March 3, 2016

Math
Viifodososmjdj
March 3, 2016

Math
😆😆😆😆😆😷😐👺👺👹🙉🙉🙈😾🙉🙈👨🙈💩💩💩
March 3, 2016

Language Arts
Thank you so much!
March 2, 2016

Language Arts
thank you so much, how did you get that?
March 2, 2016

Language Arts
What is the pattern of stressed and unstressed syllables in this line: The sun should drop its greatest gold
March 2, 2016

math
The classroom has 4 desk each row. there are 5 rows. how many desk are there in the classroom.
January 7, 2016

Math
Which statement is true? A. Every rational number is a square root. B. Every irrational number is a fraction. C. Every rational number can be written as a fraction. D. Every square root can be written as a whole number I go with C
November 12, 2015

Spanish
Wow that was no help Ms.Sue
November 6, 2015

Spanish
She is pretty confusing and is not helpful
November 4, 2015

chemistry
How many grams of lithium hydroxide are needed to remove 920 g of carbon dioxide in the air
August 27, 2015

math
At a popcorn factory, for every kilogram of popcorn that is popped, 100 grams are not popped. The factory pops 5 kilograms every day. What is the total weight in kilograms, of the unpopped corn in the month of april?
August 20, 2015

ELA
Do you guys know what unit and lesson it was because I'm on that but I don't remember doing it and I can't find it. @(OKCthunder)
May 21, 2015

chemistry
Thank you for your answer. Why we do not use mull or thin-solid film method for this one?
April 26, 2015

chemistry
please help !!! You are given an organic solid which reacts with most organic solvents. How would you obtain the IR spectrum of it?
April 26, 2015

AP Chemestry
Ah! That would explain it. Silly oversight on my part, sorry about that. K is defiantly in units of hours^-1, so that must be the correct choice. I'll check in with my teacher specifically tomorrow to see why the question ended up that way. Thanks a ton for the help, I'...
April 21, 2015

AP Chemestry
Sorry for the late reply! Units for the constant are grams per liter (molar). Both answers A and B were exactly the same, so I assume there must have been a printing error, or something or the sort. As for my work, I inserted the info given into the equation and solved from ...
April 21, 2015

AP Chemestry
(Alright, third attempt here. My replies keep being eaten) I inserted my givens into the equation, ' Natural-log At/Ao = negative constant multiplied by the time passed '. However, my answer isn't close to the choices. Any help would be appreciated!
April 21, 2015

AP Chemestry
Whoops, somehow I managed to mess that up. Here's the rest of my question The question is as follows: Find the initial concentration of a sucrose solution that has a current concentration of 3.45 molar after 2 hours and 30 minutes at 25°C. For this reaction at 25°C...
April 21, 2015

AP Chemestry
The question is as follows: went wrong, I'd really appreciate it!
April 21, 2015

physics 1
444g mass vibrates according to the equation x = 0.348 sin (5.82 t) where x is in meters and t is in seconds. Determine the total energy. Determine the kinetic energy when x is 14.0cm. Determine the potential energy when x is 14.0cm.
December 13, 2014

physics 1
will G be 6.67*10^(-11)
December 12, 2014

physics 1
what would I use for r and M?
December 12, 2014

physics 1
Two isolated masses, M1 = 2.20 kg and M2 = 589 kg are initially rest, a distance d= 161 cm apart. Their gravitational attraction is the only force acting. Calculate the time it takes for M1 to move from that distance to 159 cm from M2. Assume that M2 does not move and that the...
December 12, 2014

Physics
A bullet of mass m= 2.50×10-2kg is fired along an incline and imbeds itself quickly into a block of wood of mass M= 1.60kg. The block and bullet then slide up the incline, assumed frictionless, and rise a height H= 1.45m before stopping. Calculate the speed of the bullet...
December 12, 2014

Chemsitry
What courses should you take in each grade 9,10,11,12 to help you become a pharmacologist. i need courses for each grade
December 11, 2014

Biology
what is the vascular system of the lilac flower. i tried finding some sites. some sites would help me. PLease!
December 5, 2014

biology
Describe the vascular system and functions of each component of the Lilac flower i tried to find some sites, but i cant find in any. So any sites would help as well
December 3, 2014

Please help Damon
thank you!
December 1, 2014

Please help Damon
need help on a lab here are the results Mass of empty beaker and glass rod(62.62) Mass of beaker, glass rod, hydrated copper sulfate(66.02) Mass of beaker, glass rod and anhydrous copper sulfate(65.04) Mass of hydrated copper sulfate(3.4) Mass of anhydrous copper sulfate(2.42...
December 1, 2014

SpanishiA
Hola! For 4 ma man it would probably be C (Estan) because when you did the lesson in the English to Spanish words it described the word Estan as and I quote, "they/you (plural) are." This is because the sentence subject is talking about the people in the car. And in ...
November 19, 2014

Chemistry 11
Actually, I made a mistake in my previous question & fixed it, additionally I looked at the link he gave me and didn't find it useful. I appreciate Bob Pursley taking the time out of his day to help me with this problem but I didn't quite grasp what he was getting at. ...
November 18, 2014

Chemistry 11
So I did a lab determining the chemical formula of a hydrate. We had to find the molecular formula of a hydrate of copper (2) sulphate, CuSO4 .xH2O. My observation table looks like this: Mass of clean, dry test tube: 21.6g Mass of test tube + hydrated copper (2) sulphate: 24.1...
November 18, 2014

Chem 11
Would the answer somehow differ if I had different amounts than the person on the link you posted?
November 18, 2014

Chem 11
So I did a lab determining the chemical formula of a hydrate. I really just need somebody to check this over for me. We had to find the molecular formula of a hydrate of copper (2) sulphate, CuSO4 .xH2O. My observation table looks like this: Mass of clean, dry test tube: 21.6g...
November 18, 2014

physics
If each of the three rotor helicopter blades is L = 3.69m long and has a mass of m = 159kg, calculate the moment of inertia of the three rotor blades about the axis of rotation.
November 11, 2014

physics
what would the units be?
November 11, 2014

physics
The distance between a hydrogen atom (m = 1.0u) and a chloride atom (m = 35.5u) in the HCl molecule is 1.27×10-10m. How far from the hydrogen atom is the center of mass of the molecule?
November 11, 2014

Chemistry
A generic solid, X, has a molar mass of 77.7 g/mol. In a constant-pressure calorimeter, 31.2 g of X is dissolved in 289 g of water at 23.00 °C. The temperature of the resulting solution rises to 24.40 °C. Assume the solution has the same specific heat as water, 4.184 J...
November 2, 2014

physics
Displacement vectors A,B,and C add up to a total of zero. Vector A has a magnitude of 1550 m and a direction of 24.1° north of east. Vector B has a direction of 41.0° east of south, and vector C has a direction of 33.4° north of west. Find the magnitudes of vector ...
October 30, 2014

HEALTH
A.
October 8, 2014

HEALTH
The heart is a _____ that provides the force necessary to circulate the blood to all the tissues in the body. A. Skeletal pump B. Autonomous pump C. Muscular pump D. Systemic pump My answer would be C. i think thats right...
October 8, 2014

physics
What is the acceleration of a car going from 3.0 x 101 km/hr to 1.20 x 102 km/hr in 3.0 x 101 sec?
October 3, 2014

health
Its D. i believe
September 23, 2014

Aviation #2
what accident investigation / forensic methods are used in aviation?
August 25, 2014

Aviation
What procedures and / or methods are recognized within the Aviation industry?
August 25, 2014

Investigation Domain Contexts
What procedures and methods are prescribed/recommended in the Aviation domain?
August 25, 2014

science
Air pressure at the surface of a fresh water lake near sea level is about 10^5 N/m2. At approximately what depth below the surface does a diver experience a pressure of 3.0 e5 N/m2?
July 1, 2014

science
A 444g mass vibrates according to the equation x = 0.348 sin (5.82 t) where x is in meters and t is in seconds. Determine the total energy. Determine the kinetic energy when x is 14.0cm. Determine the potential energy when x is 14.0cm.
May 1, 2014

Math
Kaylee got a 15% raise. She now earns $23 an hour. How much did she earn before the raise?
April 12, 2014

Math
What is the maximum value of the function y= 18/x^2-9 over the interval -3<x<3? A. 0 B. 2 C. -2 D. Infinity
March 30, 2014

Science
Which statement summarizes water quality issues in China
March 24, 2014

Chemisty
a)What is the [Ca2+] when 100mL of .05M CaCl2 is added to 100mL of .10M K2SO4? b) What is the [SO42-] for part a? c) write the Ksp expression for CaSO4 d)Will a precipitate form in the solution from part a)?
March 20, 2014

Math
What is 3/8=4m-2 over _____ 12
March 20, 2014

history
Thanks for the help :)
March 6, 2014

history
So, it will be A then.
March 6, 2014

history
During the 1950s, the advent of _______ created the largest and fastest-growing impact on American society. A. television. B. suburban communities C. educational reform D. fundamentalist religion. I think it's D. Am I correct?
March 6, 2014

science
Wrong... MA of inclined plane = 20m/1.2m = 16.67 &the rest idk.
February 16, 2014

Math
Tiffany bought 2/5 kg of cherries. Linda bought 1/10 kg of cherries less than Tiffany. How many kg of cherries did they buy altogether?
January 22, 2014

Math
Express fraction 9/4 as the sum of two or three equal parts. Rewrite the problem as a multiplication equation.
January 9, 2014

algebra 1
parallel and perpendicular lines write the slope-intercept for an equation of the line that passes through the given point and is perpendicular to the graph of each equation (4-2) y=1/2 +1, ( 2,-3) y= -2/3+4 (-8,-7) y=-x-8 (6,-2) y=-3x-6
January 9, 2014

Chemistry
A reaction: A(aq) + B(aq) <-> C(aq) has a standard free-energy change of –4.65 kJ/mol at 25 °C. What are the concentrations of A, B, and C at equilibrium if, at the beginning of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M, respectively? Im not...
November 24, 2013

Chemistry
Silver chromate is sparingly soluble in aqueous solutions. The Ksp of Ag2CrO4 is 1.12× 10–12. What is the solubility (in mol/L) of silver chromate in 1.4 M potassium chromate aqueous solution? In 1.4 M silver nitrate aqueous solution? In pure water?
November 12, 2013

Chemistry
The Ksp of CaSO4 is 4.93× 10–5. Calculate the solubility (in g/L) of CaSO4(s) in 0.300 M Na2SO4(aq) at 25 °C
November 12, 2013

human resource
please help me with my assignment? The company has seven department stores in your city. One of your biggest problems is adequately training new salesclerks. 1. Design a three-day orientation/training program for new salesclerks. to be used. 2. Specify what methods could be ...
October 15, 2013

human resource
The company has seven department stores in your city. One of your biggest problems is adequately training new salesclerks. 1. Design a three-day orientation/training program for new salesclerks. to be used. 2. Specify what methods could be used to evaluate the success of the ...
October 15, 2013

Need Help with Math?
1. Translate P(4,0) right 3 units and up 5 units. Give the coordinates of the image point. (-5,1) (1,-5) (5,7) (7,5) 2. Point A(6, -2) is reflected over the x-axis. Write the coordinates of A'. 6,2 6,-2 -6,2 -6,-2
October 11, 2013

Chemistry
I was able to figure it out! Thank you very much for your help(:
September 30, 2013

Chemistry
I don't know what to do after I set up the Kc equation. How do you isolate x from 1.80=(x^2)/(.062-x)
September 30, 2013

Chemistry
Phosphorus pentachloride decomposes according to the chemical equation PCl5(g) -----> PCl3 (g)+ Cl2(g) Kc= 1.80 at 250 degrees C A 0.206 mol sample of PCl5(g) is injected into an empty 3.30 L reaction vessel held at 250 °C. Calculate the concentrations of PCl5(g) and ...
September 30, 2013

Math
Shelly compared the number of oak trees to the number of maple trees as part of a study about hardwood trees in a woodlot. She counted 9 maple trees to every 5 oak trees. Later in the year there was a bug problem and many trees died. New trees were planted to make sure there ...
September 19, 2013

health
D. and a normal schedule for food is three meals a day and trying to eat them at the same time every day ;)
September 18, 2013

Math Help? Check my answers.
So it would be 3 and not 5?
August 20, 2013

Math Help? Check my answers.
Simplify 6 x 3 divide 3 - 1. Pre-Algebra? Answers: 2 3 5 6 My answer: 5
August 20, 2013

Math
I'm currently taking IBMS and it has elements of several types of math classes (calculus, statistics, algebra, etc.). It is the "lowest" level IB Math class one can take, but not necessarily for students who have a low background in math. I know one student who ...
August 20, 2013

psychology
Nelda is fearful of public places and has managed to stay "at home" for the last three years. She and her therapist have developed a strategy. During the first week, she will go to the front door and open it and look outside. If she can remain calm, the goal for the ...
July 25, 2013

psychology
Its between B and D ... so im going with D
July 25, 2013

psychology
26. Emily and her mother have entered a new place. There are toys on the floor to play with, but no one else is in the room. After a few months on her mothers lap, Emily begins to move toward the toys and is soon playing happily while her mother reads a magazine. When a ...
July 25, 2013

psychology
25. Teenage mothers who are accustomed to existing on hamburgers, French fries, and Cokes need to consider the nutritional needs of the child. Research has shown that a poor diet can _______________. 
A. restrict the development of eye and hair color
...
July 25, 2013

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