Wednesday

February 22, 2017
**Math grade 12**

make F(x)=3/x-11 vertical asymptote

*Saturday, August 13, 2011 by F(x)=3/x-11 vertical*

**Chemistry - please help**

A substance was tested for Impurity A using liquid chromatography. 2 determinations were performed. In the 1st chromatogram, Impurity A was not detected, i.e. no Impurity A peak was observed and in the 2nd chromatogram, Impurity A peak was observed with a value of 0.3%. Is it ...

*Saturday, August 13, 2011 by elizabeth*

**CHemistry - help needed**

I performed a "related substances" test using HPLC on 1 sample. The 1st value for an impurity is 0% (not detected) and the 2nd value is 0.3%. THe passing limit is 4% for this test. Are the results acceptable, i.e. to take the average of the 2 values to give 0.15%?

*Thursday, August 11, 2011 by elizabeth*

**Math**

Mr. Doodle’s grade distribution over the past 3 years for a course in college algebra is shown in the chart below. Grade Number A 45 B 180 C 110 D 95 F 65 I 5 If Jane plans to take a college algebra course with Mr. Doodle, determine the empirical probability that she ...

*Wednesday, July 20, 2011 by Jen*

**Math-Please help :(**

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If Nicholas Thompson teaches this course, then I will get a passing grade. I did not get a passing grade...

*Thursday, July 14, 2011 by Jen*

**stats**

Can someone please help me, I have been working on this for 2 hours now and I keep getting a negative answer. You are given the following data. Number of Absences Final Grade 0 99 1 94 2 79 3 73 4 68 5 53 - Find the correlation coefficient for the data. - Find the equation for...

*Thursday, July 14, 2011 by Celest*

**Math**

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If Nicholas Thompson teaches this course, then I will get a passing grade. I did not get a passing grade...

*Thursday, July 14, 2011 by Jen*

**Math**

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If Nicholas Thompson teaches this course, then I will get a passing grade. I did not get a passing grade...

*Thursday, July 14, 2011 by Jen*

**chesmistry 9 grade**

advantage,disadvantage of zero-b water purifier

*Wednesday, July 13, 2011 by flash*

**Math**

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If Nicholas Thompson teaches this course, then I will get a passing grade. I did not get a passing grade...

*Wednesday, July 13, 2011 by Jen*

**Math-geometry**

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If Nicholas Thompson teaches this course, then I will get a passing grade. I did not get a passing grade...

*Wednesday, July 13, 2011 by Jen*

**Math-geometry**

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If Nicholas Thompson teaches this course, then I will get a passing grade. I did not get a passing grade...

*Tuesday, July 12, 2011 by Jen*

**math**

Select 2 cards from a deck of 52, a. Find the probability of getting 2 hearts b. Find the probability of getting a heart on the 2nd draw given that you got a heart on the first draw

*Monday, July 11, 2011 by anonymous*

**Math**

The table below shows the number of molecules in experiment B. Time(h) : 1st , 2nd , 3rd , 4th , 5th No. of molecules : 3 , 8 , 15 , 24, 35 (i) how many molecules will there be in nth hour? (ii) from which hour onwards would the no. of molecules be in experiment B?

*Saturday, June 18, 2011 by Smartypants*

**Math**

2004 (2nd) course2-3.2 Let P and Q be points on the line y=x+4 where the x-coordinates of P and Q are p and p+1,respectively.Let O denote the origin. (1)For 2 vectors OP(vector)and OQ(vector),the inner product OP(vector)*OQ(vector) takes its minimum when p is JK/L (2)For P and...

*Friday, June 10, 2011 by Bayarbold*

**math**

a number story for grade 4?

*Wednesday, June 8, 2011 by tanvi verma*

**math grade 5**

My sister in grade 5 needs help but i dunt exactly know how to do the answers myself, so if someone can help me out i can explain to her better. Thanks 3. You are using a tree diagram with 12 branches to show the possible outcome of a probability experiment What might the ...

*Monday, June 6, 2011 by saira*

**3rd grade math**

Explain how to compare 0.34 and 0.27?

*Monday, June 6, 2011 by Rae*

**science**

7th grade..... what is the function of the retina in the eye ?:)<3

*Thursday, June 2, 2011 by ruth a.*

**MAT/116**

I was just wandering if this was correct? 1. Your company is planning to spend no less than $80,000 and no more than $100,000 on a landscaping project, which will be used as a promotional park that promotes your toaster manufacturing company. Write an inequality with a ...

*Monday, May 30, 2011 by Vic*

**MAT/116**

I was just wandering if this was correct? 1. Your company is planning to spend no less than $80,000 and no more than $100,000 on a landscaping project, which will be used as a promotional park that promotes your toaster manufacturing company. Write an inequality with a ...

*Sunday, May 29, 2011 by Vic*

**school in general**

Hi i have a question im currently in 7th grade but i was held back a year in first do you think there would be any possible way to advance to 8th grade just curios I believe I have a wide enough knowledge span to pull it off but im just questioning the wheter or not it would ...

*Friday, May 27, 2011 by JESSE*

**SCIENCE(PHYSICS)**

A train travels 40 km/hr for 0.2 hr, 50km/hr for next 0.2hr and 60km/hr for next 0.4 hr.calculate the average speed of train. My Solution:-1st hr. distance=40 multiplied by 0.2=8km 2nd hr.= 50 multiplied by 0.2=10km 3rd hr. =60 multiplied by 0.4=24 km Average speed=10+24+8 ...

*Wednesday, May 25, 2011 by YASH*

**11th grade-math**

help me Use the Quadratic Formula to solve N2=6n

*Tuesday, May 24, 2011 by kayla*

**world issuse**

I'm a 7 letter word u read daily,my 5th 6th and 7th letter increase each year,my 3rd n 4th letter are the same,my 3rd 2nd n 5th letter cover 75% of the world.

*Tuesday, May 24, 2011 by dan*

**math**

i'm in 5th grade what is 9/26 with a remander

*Monday, May 23, 2011 by angelina*

**AP Physics**

A Young's double slit has a slit separation of 2.50x10 raised to the -5th power m on which a monochromatic light beam is directed. The resultant bright fringes on a screen 1.00 m from the double slit are separated by 2.30x10 raised to the -2nd power m. What is the wavelength ...

*Sunday, May 22, 2011 by Sydney*

**4th grade math**

Ms. Sue, so how would you write 50.90

*Sunday, May 22, 2011 by bes*

**4th grade math**

how do you write 50.09 in word form?

*Sunday, May 22, 2011 by bes*

**6th Grade Math**

76 is what percent of 15??????????????????

*Sunday, May 22, 2011 by Mbaintu*

**5th Grade**

write the number13 inbase six

*Saturday, May 21, 2011 by Raja*

**4th grade math**

what is the next number in the pattern 5,3,7,5,9,7,11?

*Thursday, May 19, 2011 by jennifer*

**criminal justice**

Prepare a 6–8 slide PowerPoint presentation that addresses the following questions: •What are some of the ways that organized crime impacts you and a community and/or city (of your choice) directly? (This element will account for 20% of your grade.) •What are some of the...

*Wednesday, May 18, 2011 by nancy*

**Maths**

The 5th term of an exponential sequence is 4 and of 2nd term is 35(¡)find the 3rd term (¡¡)the 6th term (¡¡¡)the sum of the first 5th term?

*Tuesday, May 17, 2011 by Job*

**Maths 7th grade**

How do you factorise?

*Tuesday, May 17, 2011 by Z*

**6th grade math**

how do you put 1 and 3/16 and 1 and 7/8 in simplest form and what is the answer?

*Friday, May 13, 2011 by Aiyana*

**trig**

1st-the reason i keep change my name because some of my friends are using my computer by their own name to asked questions. we are having a hard time solving each trig problems 2nd- if sin theta=0.6 and 90 degree <theta < 180 degree, find the exact value of sin 2 theta. ...

*Sunday, May 8, 2011 by minh*

**physics**

If 7.00hp are required to drive a 1500-kg automobile at 66.0 km/h on a level road. What power is necessary to drive the car at 66.0 km/h down a 1.00 % grade? It requires 42.9 hp to drive the car at 66.0 km/h up a 10.0 % grade (a hill rising 10.0 m vertically in 100.0 m ...

*Thursday, May 5, 2011 by Allison*

**Physics**

If 7.00hp are required to drive a 1500-kg automobile at 66.0 km/h on a level road. What power is necessary to drive the car at 66.0 km/h down a 1.00 % grade? It requires 42.9 hp to drive the car at 66.0 km/h up a 10.0 % grade (a hill rising 10.0 m vertically in 100.0 m ...

*Wednesday, May 4, 2011 by Allison*

**8th grade math**

If the sum of 1! + 2! + 3! + 4! + ... + 49! + 50! is divided by 15, what is the remainder?

*Wednesday, May 4, 2011 by Anonymous*

**8th grade math**

2x-5y=14 3x+2y=40 what is the solve of xy ?

*Tuesday, May 3, 2011 by Anonymous*

**8th grade math**

2x-5y=14 3x+2y=40 what is the solve of xy ?

*Tuesday, May 3, 2011 by Anonymous*

**4th grade math**

my question is in geometry what does 4/3 look like?

*Tuesday, May 3, 2011 by mckenzie*

**5th grade math**

how do you reduce 15/20 and 8/20?

*Monday, May 2, 2011 by mary*

**8th grade math**

3.5 X 10 ________ 7 x 10^-9

*Sunday, May 1, 2011 by john*

**8th grade science**

Is it probable that the sun will become a supernova? Why or why not?

*Friday, April 29, 2011 by Kallie*

**Spanis8th grade**

Is this correct? Tú salgas la escuela a las ocho.

*Thursday, April 28, 2011 by Jodie-*

**Chem Webwork UCI**

Complete the table below: What is the pH of the solution created by combining 0.70 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? mL NaOH: 0.70 pH w/ HCl: 1.08 pH wHC2H3O2: 3.23 Complete the table below: What are the pH ...

*Monday, April 25, 2011 by Michelle*

**math**

There are 283 students in Walley's school and 59 of them are in the sixth grade. What is the approximate percent of student at Walley's school who are in the sixth grade

*Wednesday, April 20, 2011 by Mecca*

**math**

An average score of 90 or above in a history class receives an A grade. You have scores of 90, 89, and 85 on three exams. Find the range of scores on the fourth exam that will give you an A grade for the course. (Let N stand for your score on the fourth exam.)

*Wednesday, April 20, 2011 by lucy*

**math algebara 8th grade**

system of equations thank you 2x+3y-17 3x+y=31 2(x-3y)=24 y=3x-2 2(x+4)=24 x+y=17

*Wednesday, April 20, 2011 by amey*

**Physics**

Orange light (wavelength=600nm) is passes through a single slit. Use a=2000nm and L=2m. a) Determine the linear size on the screen of the 2nd maximum (not including the central maximum). b) Determine how many total maxima occur in the pattern. a) I thought for a single slit, ...

*Monday, April 18, 2011 by Chelsea*

**Physics**

Orange light (wavelength=600nm) is passes through a single slit. Use a=2000nm and L=2m. a) Determine the linear size on the screen of the 2nd maximum (not including the central maximum). b) Determine how many total maxima occur in the pattern. a) I thought for a single slit, ...

*Monday, April 18, 2011 by Chelsea*

**Stat**

P(A)=.10, P(B)=.30, P(C)=.40, P(D)=.10, P(F)=.10. Determined the expected grade and variance for the course.

*Sunday, April 17, 2011 by RB*

**MAth**

I don't know how to begin this one-help Janie bought 2 pairs of identical jeans at a sale.she paid regular price for the 1st pair and paid half price forthe 2nd pair.if the the total cost was $45.00,what was the regular price of the jeans? 2x-1/2x=45 ??

*Friday, April 15, 2011 by Caroline*

**grade nine math Polynomials**

4s + 3 -s = -6

*Wednesday, April 13, 2011 by peyton*

**Calculus AB (AP)**

Hi, I have a calculus test tomorrow and I understand how to complete all of the problems, but I am unsure behind the reasoning of taking two derivatives. Can someone please explain the following: 1. g(x)=e^(f(x)) g'(x)=e^(f(x))f'(x) 2. f(x)=Integral from 0 to 3x of the square ...

*Wednesday, April 13, 2011 by Jake*

**4th grade math**

write the digit 5's value

*Tuesday, April 12, 2011 by megajolt*

**grade 9 math**

Does this answer seem correct. 2k+3=4k-5 2k-4k+3-3=-5-3 2k-4k=-5-3 -2k/-2k = -8/2 k=4

*Tuesday, April 12, 2011 by brooke*

**math 4th grade**

how do you writ $1,044 in word form.

*Monday, April 11, 2011 by jazmin*

**5th grade Math**

Explain how you can find the product of 5 and 3/4.

*Thursday, April 7, 2011 by Sarah*

**social studies 8th grade**

what are the factors of industrial development

*Thursday, April 7, 2011 by hunt*

**chemistry**

Consider the reaction: A + B −> C If it is 2nd order in A and 0 order in B, a plot of [B]−1 vs time will be... a. linear and negative b. exponential and negative c. linear and positive d. equal to zero e. exponential and positive

*Wednesday, April 6, 2011 by Eddy*

**4th grade math**

what does 12/15 - 7/15 equal,in simplest form?

*Tuesday, April 5, 2011 by megajolt*

**4th grade math**

write a decimal and 45/90 in simplest form

*Tuesday, April 5, 2011 by megajolt*

**science**

I have two questions I need help with. First is a two word answer for _____ can occur when heat from a volcano melts snow on a mountain. Total of 12 letters, 2nd is a, 4th s, 12th t. Second question-what is a 7 letter word for a mixture of loose sand, rock, and water moving at...

*Thursday, March 31, 2011 by ccrs*

**math**

What is 5,280 feet divided by 26 miles? 5th grade

*Thursday, March 31, 2011 by Vinny*

**english**

She gave birth to her first child by her uncle at age 14 in 1990. This is showing a sign of being raped. Does this works? The psychologist help Alesha to break through her issues by using cognitive-behavioral therapy. Is "to" necessary or should take it out? Or both are ...

*Wednesday, March 30, 2011 by Jackie*

**math 4th grade**

is 80 sq feet the size of a kitchen or is it 8 sq ft

*Wednesday, March 30, 2011 by spencer*

**ryhme scheme**

6 grade poetry plz help im dislexic and retarted

*Wednesday, March 30, 2011 by papa jack*

**7th grade**

use backtracking to solve each e quations ?. 2x +1=9, 7k-3=32, 5(n-8)=25 2(2t-1)=14 8x-1=63 ,2x-5=15,

*Tuesday, March 29, 2011 by holiday*

**Chemistry-help needed**

Posted by candy on Monday, March 28, 2011 at 3:15pm. 0.3g of clotrimazole (C22H17ClN2) was dissolved in 80ml of anhydrous acetic acid. This was titrated with 0.1M perchloric acid using 0.3ml of naphtholbenzein as indicator until the colour changes from brownish-yellow to green...

*Tuesday, March 29, 2011 by candy*

**intro to statisics**

78% of US homes have a telephone answering device. In a random sample of 250 homes, what is the probability that fewer than 50 do not have a telephone answering device. Courtney, 2nd yr college

*Tuesday, March 29, 2011 by Courtney*

**Math**

The mean weight of 75 2nd graders is 55.7 lbs and the mean weight of 25 1st graders is 42.6 lb. What is the mean weight of the 100 children

*Monday, March 28, 2011 by Mai*

**Math**

The mean weight of 75 2nd graders is 55.7 lbs and the mean weight of 25 1st graders is 42.6 lb. What is the mean weight of the 100 children

*Monday, March 28, 2011 by Macy*

**math**

Please Help!! The mean weight of 75 2nd graders is 55.7 lbs and the mean weight of 25 1st graders is 42.6 lb. What is the mean weight of the 100 children

*Monday, March 28, 2011 by luce*

**math**

The mean weight of 75 2nd graders is 55.7 lbs and the mean weight of 25 1st graders is 42.6 lb. What is the mean weight of the 100 children

*Monday, March 28, 2011 by jj*

**Math**

The mean weight of 75 2nd graders is 55.7 lbs and the mean weight of 25 1st graders is 42.6 lb. What is the mean weight of the 100 children?

*Monday, March 28, 2011 by MX*

**chemistry - help**

0.3g of clotrimazole (C22H17ClN2) was dissolved in 80ml of anhydrous acetic acid. This was titrated with 0.1M perchloric acid using 0.3ml of naphtholbenzein as indicator until the colour changes from brownish-yellow to green. 1ml of 0.1M perchloric acid is equivalent to 34....

*Monday, March 28, 2011 by candy*

**7th grade math**

what is an equation?

*Sunday, March 27, 2011 by holiday*

**7th grade math**

what is an equation?

*Sunday, March 27, 2011 by holiday*

**7th grade math**

2x+7=4x+3 ? 3x+6=5x+1 ? 2n+6=8N+3 ? 6N+9=9n+6 ?

*Sunday, March 27, 2011 by holiday*

**3rd grade math**

16 1/2 x 33 = is it 792

*Sunday, March 27, 2011 by Sharon*

**grade nine polynomials**

(3/4) (1/-2) + (5/6) (-1/3)

*Sunday, March 27, 2011 by brooke*

**grade 9 polynomials**

7 (r+3s) - 2(2r -9s) I am having a hard time solving can anyone please help

*Sunday, March 27, 2011 by brooke*

**6th grade math**

s=5m find the area of square

*Monday, March 21, 2011 by Sally*

**english (for Sra) repost**

The Lady of Shalott I have two events and have to find the quotation. 1st event The handsome, dazzling figure of Sir Lancelot rides by in his shining armour. The Lady sees him in the mirror and can no longer bear her imprisonment. 2nd event The Lady floats down the river past ...

*Sunday, March 20, 2011 by george*

**Fractions-easy 5th grade**

Multiply and divide. 1) -2 4/11(-2) 2) 5 1/7 / 4 1/8

*Saturday, March 19, 2011 by Justin*

**Microeconomics**

You own the Wizard of Oz on DVD. The opportunity cost of watching this DVD for the second time: A) is zero. B) is one half the cost of the DVD, as this is the 2nd time you have watched it. C) is the value the alternative use of the time you spend watching the DVD. D) cannot be...

*Thursday, March 17, 2011 by lavern*

**Second Grade Fractions**

4/6 of 18 is ?

*Thursday, March 17, 2011 by Rosie*

**5th grade math**

please show how to get the answer... w>2 d+6<15 s-1>4

*Wednesday, March 16, 2011 by casey*

**5th grade math**

please show how to get the answer... w>2 d+6<15 s-1>4

*Wednesday, March 16, 2011 by casey*

**5th grade math**

please show how to get the answer... w>2 d+6<15 s-1>4

*Wednesday, March 16, 2011 by casey*

**MATH**

A track meet awards 6, 5, 4, 3, 2 and 1 points for 1st, 2nd, 3rd, 4th, 5th and 6th places, respectively. Team A’s only two runners originally earned 6 points in the ﬁrst race with both runners ﬁnishing in the top 6, but then the winner of the ﬁrst race ...

*Wednesday, March 16, 2011 by ABC123DoReMi*

**English-writeacher**

Hey, I just wanted to let you know that I got the grade back for that english paper you helped me write a few weeks back...the movie analysis on A Walk to Remember. I got a B! : ) But I have a chance to revise it according to the teachers comments and turn it in for a better ...

*Tuesday, March 15, 2011 by y912f*

**4th grade math**

can u exsplain long division to me?

*Monday, March 14, 2011 by clinton*

**chemistry.**

in the titration between Na2CO3 and HCl... 1) at the first end point what reaction is stoiciometrically complete? 2)At the start of titration where HCl=0 is the solution acidic or basic. ExPlain? 3) At the 2nd end point what reaction is stiociometrically complete? 4)Propose a ...

*Sunday, March 13, 2011 by zoe*

**Physics * (Wht am I doing wrng? answ provided)**

A 6 kg block slides on a horizontal frictionless surface with a speed of 1.5 m/s . It is brought momentarily to rest when it hits a bumper that compresses a spring. The acceleration of gravity is 9.8 m/s2 .How much is the spring compressed if its force constant is 7 kN/m? ...

*Friday, March 11, 2011 by cr*

**Chemistry-help needed**

0.3g of clotrimazole (C22H17ClN2) was dissolved in 80ml of anhydrous acetic acid. This was titrated with 0.1M perchloric acid using 0.3ml of naphtholbenzein as indicator until the colour changes from brownish-yellow to green. 1ml of 0.1M perchloric acid is equivalent to 34....

*Wednesday, March 9, 2011 by candy*

**5th grade math**

is 13/20 greater than 3/4

*Tuesday, March 8, 2011 by Olivia Hines*