# Posts by liz

Total # Posts: 1,327

Math for the middle school and elementary teacher
what number am I? I am a 3-digit number. I am equal to the sum of the cubes of my digits. I am between 100 and 200. My digits are odd. Explain whether or not other solutions to the riddle are possible. My answer was 153...is that correct? please let me know. could 135 work too?

chemistry
How many milliliters of 3.6 M HCl must be transfered from a reagent bottle to provide 20 g HCl for a reaction? Answer in units of mL

Chemistry
I think numbers 1, 2, 3 and 4 all contain only 3 sig figs

math
find the natural domain of the function: f(x)= square root of (x^2-9)(x+5)/x-5

trig
use trig identities to rewrite: (1/(1-cos4v))-(1/(1+cos4v))

Math
[3(7 + 4) - 2]6

psychology
I looked at the information you posted and it supports my initial thoughts; however, I am still getting feed-back that I am wrong from my team mates( we are doing a paper together)...Two of them say that they want to do the paper on cognitive behaviorial therapy, two on ...

psychology
I am confused, I thought these were one in the same, but as I research they are saying that they are differnt approches. Can you help me...Is cognitive therapy the same as cognitive behaviorial intervention?

math
that's what I did too but these are the possible answers: 1) 5x+4+5h 2) 5x-4+5h 3) 10x-4+5h 4) 10x+4 5) 10x+4+5h that's why I was confused.

math
simplify the difference quotient: f(x+h)-f(x), (h ≠ 0) as much as possible when f(x)=5x^2+4x+6

Guide to writing Case Study

technology
Should there be any limitations on linking. If not, why not? If so, which limitations should be in place and why?

Pysics
425g/ 22/g cm * 20cm* 5cm help

statistics
Define the terms parameter and statistic. Be sure that the concepts of population and sample are included in your definitions.

statistics
Downs and Abwender (2002) found neurological deficits in soccer players who are routinely hit on the head with soccer balls compared to swimmers, who are also athletes but who are not regularly hit in the head. Is this an example of an experimental or a non-experimental study...

statistics
Use summation notation to express each of the following calculations: a. Add 1 point to each score, then add the resulting values. b. Add 1 point to each score and square the result, then add the squared values. c. Add the scores and square the sum, then subtract 3 points from...

statistics
Oxytocin is a naturally occurring brain chemical that is nicknamed the “love hormone” because it seems to play a role in the formation of social relationships such as mating pairs and parent-child bonding. A recent study demonstrated that oxytocin appears to increase...

statistics
Use summation notation to express each of the following calculations: a. Add 1 point to each score, then add the resulting values. b. Add 1 point to each score and square the result, then add the squared values. c. Add the scores and square the sum, then subtract 3 points from...

statistics
Why is it necessary to have more than one method for measuring central tendency?

statistics
Find the mean, median, and mode for the following sample of scores: 8, 7, 8, 8, 4, 9, 10, 7, 8, 8, 9, 8

statistics
A sample of n = 9 scores has a mean of M _ 10. One person with a score of X _ 2 is removed from the sample. What is the value for the new sample mean?

statistics
Does it ever seem to you that the weather is nice during the work week, but lousy on the weekend? Cerveny and Balling (1998) have confirmed that this is not your imagination—pollution accumulating during the work week most likely spoils the weekend weather for people on ...

statistics
A student was asked to compute the mean and standard deviation for the following sample of n _ 5 scores: 81, 87, 89, 86, and 87. To simplify the arithmetic, the student first subtracted 80 points from each score to obtain a new sample consisting of 1, 7, 9, 6, and 7. The mean ...

statistics
There are two different formulas or methods that can be used to calculate SS. a. Under what circumstances is the definitional formula easy to use? b. Under what circumstances is the computational formula preferred?

statistics
In an extensive study involving thousands of British children, Arden and Plomin (2006) found significantly higher variance in the intelligence scores for males than for females. Following are hypothetical data, similar to the results obtained in the study. Note that the scores...

statistics
Calculate SS, variance, and standard deviation for the following population of N _ 7 scores: 8, 1, 4, 3, 5, 3, 4. (Note: The definitional formula works well with these scores.)

statistics
Calculate SS, variance, and standard deviation for the following sample of n _ 4 scores: 3, 1, 1, 1. (Note: The computational formula works well with these scores.)

Physics
ac=v^2/r m/s 90 mins is about 1.5 hrs, so 2(pi(3.14))(4175)/1.5= 17479.3 m/s^2

chemistry
Determine the Molarity of a 125 mL NaOH solution if upon titration with 5.5 mL of an 2.5 M HCl solution, the end point of the titration was reached

Calculus
Thank you!!

Calculus
Let R be the region bounded by y = 1/x, the lime x = 1, the line x = 3 and the x-axis. The line x = k divides R into two regions of equal area. Determine k.

Calculus
The answer has to be one of the following: a. L=90t-50 b. L= sqrt(4100t) c. L= sqrt(4100t^2 +5000t +2500) d. L= sqrt(4100t^2-5000t + 2500) e. L= sqrt(90t-50)

Calculus
A car passes by a certain point at time t = 0 hours heading east at 40 miles per hour. At t = 1 hour another car passes by the same point heading north at 50 miles per hour. What is the functiuonthat equals the distance between the two cars?

Math
1439.6926 ft

accounting
Triple Play, Inc Triple Play, Inc. was established in 1982 by Randy Cleaver, Jim “Bluefish” Johnson, and Willie Lloyd, all ex-major league baseball players who were interested in offering quality baseball mitts at affordable prices. These players felt that, at the ...

CEM 122
What is the purpose of the "blank" in a experimental analysis?

A simile
Is this simile? Feeling the cold air that is as cold as the cold words that said I couldn't do it.

statistics
According to the IRS, 70% of Americans file their taxes electronically. For a group of 12 American adults who were selected at random, what is the probability that at least five of them file their taxes electronically?

pirate history
also, are there any websites displaying the flag?

pirate history
are there anymore websites due to that my school does not allow me to go to the website posted by Ms. Sue?

pirate history
What weapons did the Barbary Corsairs use?

latin
The most significant reason for the decline of the Latin Grammar School was that it:

Poetry
Anything. Just describing something

Poetry
I need a seven long line iambic pentameter poem. PLEASE HELP...I have no idea how to do this and my teacher will fail me. please please help

animal help
i don't know. I'm very worried about it.I'm sorry.

animal help
really? is there any other way?

animal help
Oh, and I forgot to mention:I am going on a trip tomorrow and it is bleeding on its wing due to my cat.

animal help
what if it is cold? And it kinda smells like urine but it didn't go "potty"

animal help
I just found a baby bird.We think it is a red cardinal.My family is unsure what to feed it.It is newborn.What do we do?

economics
This is my son who is in 10th grade homework assignment. I want to be able to help and not look like a dope! I really have no clue! 1. Why do economists consider growth in the average labor productivity to be the key factor in determining long run living standards? 2. And, Let...

physics
What pressure difference is required between the ends of a 2.0--long, 1.0--diameter horizontal tube for 40 water to flow through it at an average speed of 4.0 ? I know we have to find delta P, but i'm stuck on how to do that. Help would be great

Physics
A ramp, a pulley, and two boxes. Box A, of mass 10.0 kg, rests on a surface inclined at 37° to the horizontal. It is connected by a lightweight cord, which passes over a massless and frictionless pulley, to a second box B, which hangs freely as shown. If the coefficient of...

algebra
what is the fraction form of -0.048

algebra
If your thinking of a number between 8 and 15-which is it most likely to be

English
Explain how Tom Joad's imprisonment affect the way he behaved during the journey and throughout his search for work in California.

English
Explain how Tom Joad's imprisonment affect the way he behaved during the journey and throughout his search for work in California.

Physics
35 of copper pellets are removed from a 300 oven and immediately dropped into 120 of water at 20 in an insulated cup.What will the new water temperature be? I'm stuck on this problem and could use some help. I used q pellets = m · Cp · ΔT and q water = m...

math
What is the difference between the shape of a side view of a triangular prism and a top view of a triangular prism?

math
Which choice below gives the number of faces, edges, and vertices of a rectangular pyramid? A. 5, 8, 5 B. 4, 7, 4 C. 6, 12, 8 D. 8, 10, 8

math HELP!!
1/4! Thank you very much!!!

math HELP!!
Adam colored two parts of a 4 × 4 grid. He colored 1_ 2 of the squares red and 1_ 4 of the squares blue. How many of the squares are not colored? Explain your answer. What fraction of the squares are not colored? Explain your answer.

math HELP!!
I get it now. Thank you and sorry for troubling you!

math HELP!!
what I don't get is if I'm supposed to add ,subtract,divide,multiply,or use some of them.

math HELP!!
any other suggestions, ms. sue?

math HELP!!
excuse me but what is ...

math HELP!!
. Adam wants to compare the fractions 2 5 1  6 , and 1 3 . He wants to order them from least to greatest and rewrite them so they all have the same denominator. Explain how Adam can rewrite the fractions.

geometry AGAIN
Which sold has the most vertices? A.Triangular Prism B. Rectangular Prism C.Rectangular pyramid D.Square Pyramid

geometry
What solid has 2 triangular faces and 3 rectangular faces?

phi 103
The second level of argumentation, where generalizations can be found in the form of public opinion polls, ratings for television and radio stations, and research surveys. (Points : 1)

chemistry
No. A buffer is made by mixing a weak acid and its conjugate base. For example, HC2H3O2 + NaC2H3O2

chemistry
Partial pressures are additive. So, total pressure - partial pressure of Hg = partial pressure of nitrogen. Use PV = nRT (using nitrogen's partial pressure) to find volume.

CHEM
You need to know the volume of the solution being titrated. Are the two solutions mixed (buffer)?

(P1xV1)/T1 = (P2xV2)/T2 T2 = (P2xV2xT1)/(P1xV1)

Chemistry
0.01L x 3.20 mol Ca(OH)2/1L x 1000mL/1.211mol H2SO4 =

Chemistry-102
0.025L x 0.25 mol HCl/1L = mol HCl 0.025L x 0.125 mol NaOH/1L = mol NaOH HCl + NaOH --> H2O + NaCl You have twice as many moles of HCl as NaOH, so there will be left over HCl. Find the moles of HCl left over and divide by the combined volumes to get its molarity. That will ...

chemistry
HCl is a strong acid, it completely ionizes HCl + H2O --> H3O+ + Cl- The concentration of H3O+ = the concentration of HCl.

Medical Information management
Mercys hosptials filing system is a middle digit. What is a disadvantge of middle digit filing? a. less accurate b. requires more staff training c. provides less ven distribtuin of recors that straight numeric d. Can't be converted to terminal digit filing

Medical Information management
Henry Moore reviewed record 88-00-17 and discovered a missed dose of triazolam on march 10. the type o review is called? a. quantititative b. utilization c. qualitative d. concurrent

Medical Information management
Henry moore reviewed medical record 88-oo-17 and discovered a missed dose of triazolam on march 10. This type of review is called a/an _____review. a. quantitative b. utiliation c. qualitative d. concurrent

Physics
22*0.7

all
how can a pkan ofaction help youadddress a current problem or challlenge you are having in school?

math HELP!!
Are the following simplified fractions? 1.1/2 2.1/5 3.2/3 4.5/6 5.3/4 6.4/8,1/2

calculus
Find the rate of change of area in respect to temperature of a rectangle. Its a steel plate that expands when heated. I have to find that rate of change when width is 1.7cm and length is 2.9. dl/dt=1.0 x 10^-5 (this is an exponent...) and dw/dt=8.0 x 10^-6

Math
then multiply 256 times two. If I am correct, the answer is 512.

computers
thank you all!!!

computers
I am going to become a tutor for kids grade K-3.I am tutoring Math, Writing, and Reading. Do you know any good websites that contain free printable worksheets?

social studies
cause she's the U.S. Secretary of State.

physics
please help. a pitcher throws a .50kg ball of clay at a blck of woo. the clay sticks to the wood on impact, and thier joint velocity afterwards is 3.0m/s. what is the original speed of the clay. please help with this question

chemistry
Internal energy = heat + work Work = Internal energy - heat heat = -5074.1kJ (combustion is always exothermic, so negative) work = -5084.3 kJ - (-5074.1) kJ =

science/maps
Yes

chemistry
Given: v with a power of 1 is 50 Ml and t with a power of 1 is 30 degrees c. what is the volume with a power of two when T with a power of 2 is 20 degrees C

science
what keeps the moon traveling in the same path eah time it orbits earth

algebra
The area of a rectangle athletic field is represented by the expression 12y^3+48y^2+24y sqaure meters. write an algebraic expression to represent one possible set of dimensions (in the same sense ''length times width'') of the athletic field. include the ...

algebra
The area of a rectangle athletic field is represented by the expression 12y^3+48^2+24y sqaure meters. write an algebraic expression to represent one possible set of dimensions (in the same sense ''length times width'') of the athletic field. include the correct...

algebra
Thee area of the rectangle athletic field represented by the expressio 25y^2-4z^2 square meters. Write an algebriac expression to represent one possible set of dimensions(in the sense''length times width'')of the athletic field. include units with the solution

animals
How many eggs can a Little Blue Penguin lay? And what are their color features?

animals
What is the location of the Little Blue Penguin?

college chemistry
Calcium oxide (CaO), an important ingredient in cement, is produced by decomposing calcium carbonate (CaCO3) at high temperature: CaCO3(s) → CaO(s) + CO2(g) In one particular reaction, 40 g of CaCO3 is heated at 750°C in a 5.0 L vessel. The pressure of CO2 is 0.12 ...

chemistry
Internal energy = heat + work heat = -196 kJ work = 4200 kJ Internal energy = -196 kJ + 4200 kJ

Math
985

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