# Posts by kelly

Total # Posts: 1,764

**college chem**

how many grams of NH4Cl are required to prepare 250 mL of .122 M NH4Cl solution? I set this up using the molarity equation and the part that I was missing is moles. So I divided the 0.122 by .25 L and got .031 mol. Then I took that and multiplied it by the molar mass of NH4Cl ...

**college chem**

how many milliliters of 0.200 M Na2S2O3 are needed to provide 0.0388 mol Na2S2O3?

**college chem**

Two questions where I have to write a balanced net ionic equation. 1. Write a balanced net ionic equation for the reaction that occurs when aqueous solutions of sodium chromate and silver nitrate are mixed 2. Write a balanced net ionic equaion reaction for the acid-base ...

**Physics**

So I'm dong a lab about simpkle harmonic motion and I have to answer questions at the end of the lab were I'm provided this question to answer here's a step that's not the actual question but the question makes reference to it Step 3 using the point and the ...

**physics**

i don't know why it's not posting Oo

**physics**

So I'm doing a lab about simple harmonic information and I have to answer questions at the end of a lab were I'm provided this question to answer here's a step that's not the actual question but the question makes reference to it step 3 Using the pointer and ...

**Physics**

So I'm doing a lab about simple harmonic information and I have to answer questions at the end of a lab were I'm provided this question to answer here's a step that's not the actual question but the question makes reference to it step 3 Using the pointer and ...

**Math**

Hi ya! So I got a question like when I'm rationalzing a denomenator in order to get simple radical form I really don't know what to do for example this problem (6^(2^-1)-3^(2^-1))^-1 ok so I know your trying to get it so it's a perfect sqaure right so I can legally...

**english**

what is llatetpsh unscrambled

**math**

Simplify (2c)(11c). my answer is telling me it should be 22c. I think it is 22c(squared). We are not combining like terms, but multiplying each to the 1st power. when you multiply you add the exponents. I am confused.

**prenatal development**

I know that tetracycline should not be taken by pregant women because it can cause stanining of the teeth. Does also cause bone abnomalites in the fetus?

**Algebra**

Don't understand quadratic word problems at all. Please help, with steps. One number is 8 more than another number. Their product is 273. find the numbers. The differance between a number and twice it's reciprocal is 17/10. What is the number? Thanks, Kelly

**math**

The general form of the equations are (4/3)x+y=(1688/3) (-9/40)x+y=(19577/40) (5/12)x+y=(-3929/12) but then when I use the incenter(p,q)and express it for distance and set the equations equal to each other i get different things when I set the first 2 equations together than I...

**math**

with only have the points on a triangle how would you determine the radius and center of the incircle of that triangle?

**math**

I have the point slope equation of a line as y-500=(-4/3)x+(188/3) how would i convert this equation into the normal form of a line?

**math**

Solve: x2 – 1024 = 0 2 is to the second power

**PHYSICS PLLZ HELP**

blah

**4th grade**

what is a tropical location and high precipitation level have produced the worlds largest ___________ along the ______________.

**Calculus**

Let h(x)= x^3 + 4x -2. Let g(x) represent the inverse of h(x). Find g(14). I know that if (a, f(a)) is on h(x), then (f(a), a) will be on g(x). I also know that if f^-1(a)=b if f(b)=a. I thought that if I could find the x value(s) at which h(x)=14, I would be able to find g(14...

**Eng. Quick ?**

Quick ?. What's the correct spelling? Advisor or when I googled it said Adviser I'm referring to a Teen Advisor for a parks and recreation group? Thank you!!!

**Law**

Will you help me solve this for my health law midterm please? Following an automobile accident, a 16-year old boy who had recently escaped from a detention center was brought to the hospital emergency department by ambulance. The patient seemed to be alert and claimed to be ...

**Math/Algebra**

Find the x-intercepts of f(x)=4x^2-20. Give an exact answer using radicals as needed. Rationalize all denominators. Express complex numbers in terms of i.

**5th grade**

is it 24/6?

**5th grade**

i argree with him or her V V V

**math**

hi, could someone please help me solve this problem, i know the answer is 24, i just need to know how to solve it. a "lucky dollar" is one of nine symbols on each reel of a slot machine with three reels. a player receives one of the various payouts whenever one or ...

**probability**

hi i really need help on how to solve these two problems, thank you so much!!! the manager of a local bank observes how long it takes a customer to complete his transactions at the automatic bank teller. a. describe an appropriate sample space for this experiment. b. describe ...

**math**

5/6-1/4

**psychology**

what is distingues the wechsler scales from the SIBS?

**psychology**

what causes you to be nervous even if you are good at what you are doing?

**science**

What type of environmental problems do they have in Kansas?

**math**

simplify these expressions as fractions: (26/27) + (35/4) (26/27) x (35/4) (3x/2y^2) x (2yx/x^2) and what are the restrictions of x, y? (3x^y/zw) + (tx^2y^3w^4/z) and what are the restrictions for he variables x, y, z, t, w to make the expression well defined? i'm not sure...

**math**

if you toss a coin 3 times what is the probability it will land on heads twice and how do you show it in a tree diagram

**nutrition**

The list of ingredients if rom a box of graham crackers. INGREDIENTS: enriched wheat flour (contains niacin, reduced iron, thiamine-vitamin b1, riboflavin-vitamin b2), sugar, hydrogenated soybean oil), graham flour, honey, high fructose corn syrup, leavening (baking soda, ...

**Math**

Omar owns a car and a moped. He can afford 12 gal of gasoline to be split between the car and the moped. Omar's car gets 20 mpg and, with the fuel currently in the tank, can hold at most an additional 10 gal of gas. His moped gets 100 mpg and can hold at most 3 gal of gas...

**Business Math**

How do you find the end-of-day balance?

**Spanish**

For a presentation, I am trying to say "These works of art are no longer made." I'm having trouble figuring out what verb tense I should use, though. So far I have: "Estas obras ya no..." but I don't know how to finish the sentence. Son hecho? ...

**9th grade**

find the unit rate 3 tablespoons for 1.5 serving how do u do it??? helpp thanks

**English/Grammar**

It was the start of a new paragraph; the sentence concluding the previous paragraph was: "The addition of this phrase added an entirely new dimension to Darwin's work; even though Darwin added this new descriptive term to further clarify the original title, "...

**English/Grammar**

In an essay I recently wrote, I wrote the following two sentences: "Natural selection. By examining the meaning of each of these words, the meaning of the entire phrase becomes pellucid: natural selection is the selection of traits by nature." I understand that "...

**LINEAR PROGRAMING...HELP PLEASEE!!!!!**

can u please name the constraits

**LINEAR PROGRAMING...HELP PLEASEE!!!!!**

A sporting goods manufacturer makes a $5 profit on soccer balls and a $4 profit on volleyballs. Cutting requires 2 hours to make 75 soccer balls and 3 hours to make 60 volleyballs. Sewing needs 3 hours to make 75 soccerballs and 2 hours to make 60 volleyballs. Cutting has 500 ...

**Social Studies: EGYPT**

what was the substance that was used to stuff the nostrils during the mummification process

**Finance (Coupon Bonds)**

I am having a hard time starting on how to calculate this please. You purchased a $1,000 five percent coupon bond that matures in 10 years. How much would your bond be worth if interest rates fall to 4% the day after you purchase the bond? What would the bond be worth in one ...

**English**

Analyze the childhood world of Jem, Scout, and Dill and their relationship with Boo Radley in Part One? Help me?

**9th grade biology honors**

i really don't understand about atp, adp,nadp plus, cellular respiration, and photosynthesis. can you tell me what happens with them all?

**Thesis statement help**

I need help on writing a thesis statement about how to make jamaican coconut drops

**Chemistry**

how many kilograms of NH3 are needed to produce 2.90x10^5kg of (NH4)2SO4? the balanced equation is: 2 NH3 + H2SO4 --> (NH4)2SO4

**Chemistry**

how many kilograms of NH3 are needed to produce 2.90x10^5kg of (NH4)2SO4? the balanced equation is: 2 NH3 + H2SO4 --> (NH4)2SO4

**Algebra**

two angles are complimentary. The sum of the measure of the first angle and half the second angle is 75 degrees. Find the measure of the angles. What is the measure of the smaller angle? what is the measure of the other angle?

**English**

Searching for an answer, I looked in a current dictionary. I thought searching was a greund used as a subject but my friend says no

**English**

In botany class, we became quite good at identyfying types of flowers. IS identyfying PP DO

**AP BIo**

IF a core is cut from a carrot and the hole is filled with corn syrup and sealed by a glass tube and then suspended in pure water, what would happen to the cells adjoing the hole, to the epidermal cells? Also, what will happen to the level of the liquid in the glass tube

**social studies**

how did geograph contribute to ghana's wealth?

**Calculus**

find the equation of both the tangent lines to the ellipse x^2+9y^2=81 that pass through the point (27,3)

**5th grade-social studies**

where does Grays Harbors go on a physical map

**Calculus _HS**

Let f(x) = x2-x-6/x g(x) = x-3, find (f+g)(x) (f-g)(x) (f/g)(x) Help !!! thanks

**Calculus HS**

Final ? - Let f(x) = x2-x-6/x g(x) = x-3, find (f+g)(x) (f-g)(x) (f/g)(x) Thanks again

**calculus HS**

Thanks for your help . I need to sketch the graph of f(x) = Sqrt 5-4x-x2 by completing the square. I assume I use the quadratic formula for this. But I am a little confused.

**calculus HS**

Express h(x)= absolute value (x-2) + abcolute value (x-5) in piece form without using absolute values.

**high school calculus**

How do you find the x-coordinate of any hole (s) in the graph of f(x)= x2-2x/x2-4?

**Ap Bio**

SAME LAb - Collect a sample of water below some riffles in stream. Stream runs into a lake. 2nd sample from lake. Which smaple would you expect to have the higher DO? Explain

**Ap Bio**

Lab 12 - Dissolved Oxygen & Aquatic Primary Productivty. Ask to DESIGN an experiment to measure the effect of salinity on the solubility of oxygen in water. What variables would need to control?

**MATH**

10 TREE'S, 5 ROW'S WITH 4 TREE'S IN EACH ROW?

**calculus hs**

Here's the question again How do I find all line through (6, -1) for which the product of x- & y- intercepts is 3? Thanks again

**HS Calculus**

How do I find all line through (, -1) for which the product of the x- & y- intercepts is 3?

**7th grade math**

Hi Bob, I got that part but I still can't figure out how old each one is help

**7th grade math**

jess, marie, and emily are sisters. The sum of their ages is 118. Emily is twice jess's age. Jess is 7 years older than Marie. How old is each girl?

**LANGUAGE**

A PERSON WHO REPAIRS BROKEN TIME PIECES (TWO WORDS, MUST RHYME)

**LANGUAGE**

A SAD FRUIT (TWO WORDS, MUST RHYME)

**LANGUAGE**

A PEEL OF A BANANA (TWO WORDS,MUST RHYME)

**LANGUAGE**

A MAN'S GREEN WHISKERS (TWO WORDS,MUST RHYME)

**6th grade**

A TRANQUIL MOTHER (MUST RHYME)

**math**

give thenext three numbers in the pattern 0, 1, 3, 7,

**com 220**

This speech is full of bias, fallacies and rhetorical devices. From the very start of this speech, Kane uses bias against the governor Jim W. Gettys. The campaigner says “rid the politics of this state of the evil domination of Boss Jim Gettys.” This is showing that ...

**math**

if you roll a die and toss a coin what is the probabilty? p(heads and 4)

**Science**

Control

**math**

A rectangular prism has a width of 92ft. and a volume of 240ft cubed. find the volume of a similar prism with a width of 23ft. I've been looking at this for a lonnggg time and I still cant figure it out. Can someone please explpain this for me?

**calculus**

find the equations of the circles which pass through the points (0,2) and (0,8), and which also touches the x-axis.

**calculus**

the line y=x-c touches the ellipse 9x^2 + 16y^2 = 144. Find the value of c and the coordinate of the point of contact. a parallelogram is defined by two sets of tangents to the curve x^2 - 4y^2 = 9. The gradients of the tangents are 1 and -1. Find the area of the parallelogram.

**calculus**

conic sections prove that the line x-2y+10=0 touches the ellipse 9x^2+64y^2=576 show that the equation of the normal to the ellipse x^2/a^2 + y^2/b^2 = 1 at the point (a cos theta, b sin theta ) is ax sin theta - by cos theta - (a^2-b^2) sin theta cos theta =0

**calculus**

if the tangent of two intersecting circles, at their points of intersection are perpendicular, the circles are said to be orthogonal. Show that the circles x^2+y^2-6x+4y+2=0 and x^2+y^2+8x+2y-22=0 are orthogonal. find the equation of the tangent to the ellipse x^2/a^2 + y^2/b^...

**calculus**

conic sections question 1: verify that the point (3,2) lies on the circle x^2+y^2-8x+2y+7=0, and find the equation of the tangent at this point. question 2: find the length of the tangents from the point (5,7) to the circle x^2+y^2-4x-6y+9=0 question 3: find the equation of ...

**calculus**

Conic sections A circle passes through points A(-5,2), B(-3,-4) and C(1,8). Find the coordinate of the point of intersection of the perpendicular bisectors of AB and BC. What is the equation of the circle?

**calculus**

what is the equation of the circle whose centre lies on the line x-2y+2=0 and which touches the positive axes.

**Calculus**

Conic Sections- A point moves so that its distance from the origin is twice its distance from the point (3,0). Show that the locus is a circle, and find its centre and radius.

**mathematics**

how do i factorize 25p^2-q^2

**maths**

mr allen has a wife and 3 kids,his salary for 2007 was 7500 per month He has a husband allowance of $10,000 a wife allowance $5000 each child allowance $2500 22% of the taxable income Taxable income =Annual Salary-Total allowances 1)Calculate Mr Allens income tax for 2007 2)...

**chemistry**

What is the effect of an insoluble impurity, such as sodium sulfate, on the observed melting point of a compound?

**Math**

name the 2 digit multiple of 8 who digits add up to 10

**American literature**

Which character is not tied to the plow

**Algebra**

there were 6 purple socks and 4 orange socks in a drawer. Zucky picked one sock without looking and then another without looking(or replacing the first). What is the probability that he picked 2 purple socks?

**Space**

Ugh...I put red giant on my final but everyone else put white dwarf. Can you tell me which is correct. Please and thanks. :) What is brighter a red giant or a white dwarf and why? Thanks <3

**math**

On a vacation in cananda steve used his credit card to buy a camera for Can $250.00 trinirose: What is the value of the camera in Ja $. a)I know the asnwer is $18,125 Ja dollars b)steve has a credit limit of Ja $30,000.00.After buying the camera,how many Canadian dollars does ...

**pharmacology**

Sodium Seconal capsules are labeled 100mg. How many will be administered if the order is for gr 1 1/2

**Science**

A----is a reptile named for sound it makes when threatened.

**Literature**

In To Kill a Mockingbird why does Helen Robinson fall down when Atticus drives up to her house?

**accounting 2**

Stower's Research issues bonds dated Jan.1,2005 that pay interest semiannually on June 30and Dec.31. The bonds have a $20,000 par value, an annual contract rate of 10% and mature in 10 years. For each of the following, determine the bonds price on Jan. 1, 2005 and prepare ...

**bones**

complete the following term using the definition.. Definition is : suture of a tendon Complete this term:teno_________

**English-Essay Writing**

make sure you have all you full stops commers etc good luck

**Physics**

What are the parts of the battery and the function for each?