Tuesday

January 24, 2017
Total # Posts: 2,604

**Math**

Anita can clean a typical pool in 8 hours. Chao can clean a typical pool in 6 hours. How long should it take Anita and Chao working together to clean a typical pool? I'd like to know how to work out this problem in order to find the answer.

*May 17, 2016*

**math**

The pressure P, of a gas varies inversely with its volume, V. Pressure is measured in units of Pa. Suppose that a particular amount of a gas is initially at a pressure of 84 Pa at a volume of 36 L. If the volume is expanded to 216 L, what will the new pressure be? I don't ...

*May 17, 2016*

**Chemistry**

A solution contains H2O2 in water. Complete decomposition of the H2O2 in 170 g of this solution yields 5.6 L of O2(g), measured at 0 oC and 101.325 kPa. What is the percentage by mass of H2O2 in this solution? Choose the closest answer. A 10% B 20% C 5.0% D 3.0% E 1.0%

*May 17, 2016*

**Chemistry**

Determine how many grams of Al must react with 2.5 M NaOH in order to produce 40 mL of hydrogen gas at 22°C and 1.02 bar

*May 17, 2016*

**check english please.. romeo and juliet**

Read this excerpt from the prologue to act II of Romeo and Juliet: CHORUS: Now old desire doth in his death-bed lie, And young affection gapes to be his heir; That fair for which love groan'd for and would die, With tender Juliet match'd, is now not fair. Now Romeo is ...

*May 17, 2016*

**Walk Two Moons**

Has anyone read the story walk two moons? If so, please help. where does Sal BEGIN to realize that her mother is really not returning? A) Lake Michigan B) Madison Wisconsin C) Pipestone Minnesota *** D) Sioux Falls, South Dakota please help, I've read the book and tryed ...

*May 14, 2016*

**Pre Algebra**

Is anyone from connexus academy who took the Unit 4 Lesson 7 Polynomials and Properties of Exponents Unit Test?? I need help on the first question...

*May 13, 2016*

**calculus**

Find the area of the region bounded by the graph of f(x)=x(x+3)(x+1) and the x-axis on the interval [-3,0]

*May 12, 2016*

**history**

Evaluate one viewpoint on each of the following in the Andes and the Pampas: the environment, globalization and the economic growth

*May 12, 2016*

**Language Arts**

and is the second question c?

*May 12, 2016*

**Language Arts**

the first one is b then right?

*May 12, 2016*

**Language Arts**

Under a spreading chestnut tree The village smithy stands; The smith, a mighty man is he, With large and sinewy hands; And the muscles of his brawny arms Are strong as iron bands. His hair is crisp, and black, and long, His face is like the tan; His brow is wet with honest ...

*May 12, 2016*

**History**

I'm looking for globalization in the Andes. I'm not looking for answers just maybe a link for help or something? thanks.

*May 12, 2016*

**History**

How does elevation impact ecosystems in South America A. Farmers can grow different crops at different elevations (this one?) B. Plants do not grow above the tree line C. Animals can't live in higher evelations D. Humans settle only in the lowest elevations

*May 12, 2016*

**calculus 1**

Set up the simplified integral and compute the volume created when the area bounded by y=.25x4, y=4, and the y=axis (Quadrant 1) is rotated around the line x=-2

*May 11, 2016*

**Chemistry**

5.88 moles of nitrogen and 16.2 moles of oxygen are mixed until the equilibrium is established, 11.28 moles of nitric oxide are formed calculate the value of equilibrium constant

*May 11, 2016*

**Social Studies**

Blop is correct, I got 100%

*May 11, 2016*

**Physics**

Three dynamics carts have force sensors placed on top of them.(cart 1, with mass of 2.2 kg, has one sensor --> cart 2, with mass of 2.5 kg, has sensors two and then three --> cart 3, with mass of 1.8 kg, has sensors four then five). Each force sensor is tied to a string ...

*May 7, 2016*

**MATH HELP ASAP**

For questions 1–4, find the slope of the following graphs. 1. a. 1/2 b. 2 c. 2 d. -1/2 2. a. 3/2 b. 1 c. -1 d. -3/2 3. a. 2/3 b. 3/2 c. 3 d. -2/3 4. a. 0 b. 1 c. -1 d. undefined For questions 5 and 6, find the slope of the line that goes through the following points. 5. x...

*May 4, 2016*

**HELP MATH ASAP**

For questions 1–4, find the slope of the following graphs. 1. (1 point) 2 –2 – 2. (1 point) 1 –1 – 3. (1 point) 3 – 4. (1 point) 0 1 –1 undefined For questions 5 and 6, find the slope of the line that goes through the following points. 5. (1 ...

*May 4, 2016*

**MATH HELP ASAP**

i don't know i need help

*May 4, 2016*

**MATH HELP ASAP**

identify the sequence as arithmetic, geometric, or neither. please explain answer 1.6,0.8, 0.4, 0.2,...

*May 4, 2016*

**MATH HELP ASAP**

algebraic

*May 4, 2016*

**MATH HELP ASAP**

use the expression to find the value of the 20th term. a. 24 b. 76 c. 80 d. 84

*May 4, 2016*

**algebra**

which algebraic expression represents the sequence shown 4,8,12,16,... a. 4n b. n + 4 c. 4n + 4 d. 4 ( n-1)

*May 4, 2016*

**algebra help asap**

what are the first 4 terms in the sequence represented by the expression 2n + 3? a. 2,5,8,11 b. 4,5,6,7 c. 5,7,9,11 d. 5,10,15,20

*May 4, 2016*

**PLEASE HELP ASAP ALGEBRA**

indentify the sequence as arithmetic, geometric, or neither. 3,4.5,6,7.5,... a. arithmetic b. geometric c. neither please help i don't know the answer

*May 4, 2016*

**PLEASE HELP ASAP**

a. 9 b. 11.5 c. 15 d. 19.5

*May 4, 2016*

**PLEASE HELP ASAP**

which values will be part of the sequence? 3,4.5,6,7.5,...

*May 4, 2016*

**MATH HELP ASAP**

identify the sequence as arithmetic, geometric, or neither 3, 4.5,6,7.5,...

*May 3, 2016*

**PLEASE HELP ASAP ALGEBRA**

A spinner is divided into 10 equal sections numbered from 0 to 10. you spin the spinner once. what is P ( divisible by 3)? a. 1/3 b. 1/2 c. 2/5 d. 3/10 my answer is d, is that correct?

*May 3, 2016*

**PLEASE HELP ASAP**

Im asking if that's correct

*May 3, 2016*

**PLEASE HELP ASAP**

1.Justin writes the letters I-L-L-I-N-O-I-S on cards and then places the card in a hat. What are the odds in favor of picking an I? a. 5:3 b. 3:5 c. 3:7 d. 1:2 my answer is b? 2. Justin writes the letters I-L-L-I-N-O-I-S on cards and then places the cards in a hat. What are ...

*May 3, 2016*

**PLEASE HELP WITH ALGEBRA**

Damon how did you find those answers though

*May 3, 2016*

**PLEASE HELP WITH ALGEBRA**

Please show me all the steps to solving the problem also you can use comment field to explain the work QUESTION: a box contains 95 pink rubber bands and 90 brown rubber bands. you select a rubber band at random from the box. find each probability. write the probability as a ...

*May 3, 2016*

**Algebra PLEASE PLEASE HELP ASAP**

what ? there are 3 different questions

*May 3, 2016*

**Algebra PLEASE PLEASE HELP ASAP**

1.Justin writes the letters I-L-L-I-N-O-I-S on cards and then places the card in a hat. What are the odds in favor of picking an I? a. 5:3 b. 3:5 c. 3:7 d. 1:2 my answer is b? 2. Justin writes the letters I-L-L-I-N-O-I-S on cards and then places the cards in a hat. What are ...

*May 3, 2016*

**algebra PLEASE HELP ASAP**

please show me the steps that you use to solve the problem. you can also use the comment field to explain the work. QUESTION: 1. what is the probability of selecting a red marble, replacing it, and then selecting a blue marble? show work 2. what is the probability of selecting...

*May 3, 2016*

**algebra PLEASE HELP ASAP**

john but for a) it comes out to be 0.5135135 and for b) it comes out to be 0.4864864 are you sure those are correct??

*May 3, 2016*

**algebra PLEASE HELP ASAP**

Please show me all the steps to solving the problem also you can use comment field to explain the work QUESTION: a box contains 95 pink rubber bands and 90 brown rubber bands. you select a rubber band at random from the box. find each probability. write the probability as a ...

*May 3, 2016*

**math help me asap**

whats 12! divide by (4!8!) i don't know the answer please help

*May 3, 2016*

**algebra PLEASE HELP ASAP**

on question 1 i meant to say the probability of a basketball player hitting a foul shot is 1/3.

*May 3, 2016*

**algebra PLEASE HELP ASAP**

1. the probability of a basketball player hitting a foul shot is 1/3. how many shots would you expect her to make in 90 attempts. a. 30 b. 60 c. 3 d. 45 my answer is b? 2. simplify 8P3. a. 42 b. 336 c. 40,432 d. 56 my answer is d? 3. how many ways can 4 students be chosen from...

*May 3, 2016*

**algebra PLEASE HELP ASAP**

1. A bag contains 9 green marbles and 11 white marbles. You select a marble at random. What are the odds in favor of you picking a green marble? a. 9:20 b. 2:9 c. 11:9 d.9:11 my answer is d? 2. A bag contains 5 green marbles, 8 red marbles, 11 orange marbles, 7 brown marbles, ...

*May 3, 2016*

**Algebra PLEASE HELP ASAP**

1.Justin writes the letters I-L-L-I-N-O-I-S on cards and then places the card in a hat. What are the odds in favor of picking an I? a. 5:3 b. 3:5 c. 3:7 d. 1:2 my answer is b? 2. Justin writes the letters I-L-L-I-N-O-I-S on cards and then places the cards in a hat. What are ...

*May 3, 2016*

**algebra PLEASE HELP ASAP**

Jennifer writes the letters M-O-N-T-A-N-A on cards and then places the cards in a hat. What is the probability of picking an M? a. 1/6 b. 1/7 c.6/1 d.7/1 my answer is b?

*May 3, 2016*

**Algebra**

The vertex of a parabola represented by f(x)=x^2-4x+3 has coordinates of (2,-1). Find the coordinates of the vertex of the parabola defined by g(x)=f(x-2). Explain how you arrived to your answer. My question: Would you move the parabola represented by f(x) 2 spaces to the ...

*May 2, 2016*

**Anatomy and Phys 1**

I have a case study that I need to do and I need someone to help simplify it for me. I would greatly appreciate it and thanks in advance! Beginning with depolarization at the neuromuscular junction, describe the normal sequence of events which lead to muscle contraction and ...

*April 28, 2016*

**algebra**

A soccer ball is kicked toward the goal. The height of the ball is modeled by the function h(t) = −16t2 + 48t where t equals the time in seconds and h(t) represents the height of the ball at time t seconds. What is the axis of symmetry, and what does it represent? t = 1....

*April 27, 2016*

**Language Arts, check!!!**

Actually nvm I can confirm the other answers too. The answers B C A D are correct for the "unit 3 Lesson 13: Read: Kid Territory: Why Do We Need Zoos?"

*April 25, 2016*

**Language Arts, check!!!**

It depends on the assignment. If you are on a "unit 3: dramatic transformations lesson 12: read: zoos: joys or jails?" then the following answers are correct: B D A A However, I cannot confirm the answers for any other assignment.

*April 25, 2016*

**statistics**

A math test consists of 17 multiple choice questions, each with five possible answers (a, b, c, d, e), only one of which is correct. Assume that a student takes the test and randomly answers the questions. What is the probability that the student will get no questions correct?

*April 24, 2016*

**Calculus**

a(t)=4sin3t;v(0)=1,s(0)=6 I'm trying to find expression for s(t). Should I wait till the end to add find and add constant. I got [1/9(13t-4sin(3t))+6] and it was wrong.

*April 24, 2016*

**Chemistry**

H3O conc will be 0.0045M because HNO3 is a strong acid

*April 24, 2016*

**chemistry**

I posted a question several days ago: The pH of human blood needs to be between 7.35 and 7.45. You want to prepare a buffer solution that gives a pH of 7.40. You decide to use a sodium phosphate buffer: the acid is H2PO−4 and the conjugate base is HPO2−4 . You want...

*April 24, 2016*

**chemistry**

Thank you, i figured out where I made the error.

*April 23, 2016*

**chemistry**

Hi, I am trying to find the pH of a buffer I created and then added NaOH to. This is my data: total volume of solution 34.2 mL [NaOH] before reaction 6.0 [HOAc] before reaction .8 M [OAc-] before reaction .4 M [HOAc] after reaction 0 M [OAc-] after reaction 5.2 M So, how would...

*April 23, 2016*

**chemistry**

Consider the following reaction. 2 CO (g) + O2 (g) −→ 2 CO2 (g) What is most likely true about the entropy change for this reaction? Why would the delta s of the rxn be less than zero? thanks.

*April 22, 2016*

**Chemistry**

thank you

*April 22, 2016*

**Pre Algebra**

Anonymous you are wrong...I used Kelsey's answers and got 100%

*April 20, 2016*

**Chemistry**

In a student's experiment, when 40 mL of 6% (w/w) hydrogen peroxide solution was reacted with 10 mL 0.5 M FeCl3 solution, a ΔrH of -3,382 J was calculated. Calculate ΔH for this reaction in kJ mol-1. Give your answer to 2 decimal places, do not include the units ...

*April 19, 2016*

**Biology , AP Biology**

which of the following are autotrophs ? A. plants , some protists and some bacteria B. plants C. plants and some bacteria D. plants and some protists

*April 16, 2016*

**calculus**

A 5.5 foot tall woman walks at 6ft/s torward a street light that is 16.5 ft above the ground. what is the rate of change of the length of her shadow when she is 14ft from the street light? At what rate is the tip of her shadow moving? How do I get the equation for this and how...

*April 14, 2016*

**physics**

If you launch a marble out of a launcher on a table with a given angle, and you know that range( distance it travelled) and time travelled ( if needed). The only force acting upon is gravity. How would you find the initial speed or velocity of the launcher? Is there a formula?

*April 12, 2016*

**Math**

Find how many numbers bigger than 2,999 and less than 8,999 can be formed from the odd digits, if no digits can be repeated.

*April 11, 2016*

**Chemistry**

Nitric oxide is formed and the equation is N2 + O2 <--> 2NO Calculate the equilibrium constant now?

*April 4, 2016*

**College Algebra**

3100 is correct, the typo is 2900. Thank you for helping.

*March 31, 2016*

**College Algebra**

Write a sentence explaining the meaning of the slope and y-intercept for the given linear relation. According to the Statistical Abstract of the United States, the number of crimes, C, reported since 1998 is given by the equation: C=31000-29t where t is in years. A. What is ...

*March 31, 2016*

**math**

Weights of women are normally distributed with mean 143 pounds and standard deviation 29 pounds. If 36 women are randomly selected, what is the probability that their mean weight is between 120 and 160 pounds? Round your answer to two decimal places.

*March 31, 2016*

**math**

Adult IQ scores are normally distributed with mean 100 and standard deviation 15. Find the IQ score that separates the adults with the highest 3% of IQ scores from the rest of the adults. Round your answer to the nearest whole number.

*March 31, 2016*

**Mathematics**

12, 6, 6 cm

*March 30, 2016*

**Mathematics**

About what much? Please clarify.

*March 30, 2016*

**Mathematics**

All the surfaces of the lantern will be made of paper. What is the least amount of paper needed to make the lantern?

*March 30, 2016*

**us history**

Thank you!

*March 29, 2016*

**us history**

Which of these Transcendentalist ideas had the most direct impact on the civil rights movement of the 20th century? (6 points) A. God and nature are one and the same thing. B. People should peacefully protest unjust laws. C. Self-reflection is the most direct way ...

*March 29, 2016*

**us history**

Thank you Ms. Sue, Jamie, and James :)

*March 29, 2016*

**us history**

Jamie, I am not sure if B would be right. I think it's a good choice.

*March 29, 2016*

**us history**

What was the result of the Seneca Falls Convention in 1848? (6 points) A. Paulina Davis' shocking speech B. The Declaration of Sentiments C. the push for anti-slavery legislation D. the creation of the National Woman Suffrage Association I THINK IT IS D. AM I ...

*March 29, 2016*

**us history**

Thank you James :)

*March 29, 2016*

**us history**

Which of the following best describes the contributions of Dorothea Dix? Dorothea Dix helped found the first homeless shelter for poverty stricken families in the late 1800s. Dorothea Dix educated people about mental illness and the possibility of recovery for most ...

*March 29, 2016*

**us history**

Thank you James and Ms. Sue :)

*March 29, 2016*

**us history**

I think it is D because conversion means changing from one belief or religion and I do not think the other answers indicate that.

*March 29, 2016*

**us history**

I will not go by anybody who is under anonymous. I rather get more professional help with Ms. Sue or another teacher. Thanks for trying tho.

*March 29, 2016*

**us history**

The idea of "conversion" is best explained as which of the following? A. the process of cultural change brought about by immigration B. the process of changing the frontier into settled communities C. the process of spreading United States territory across ...

*March 29, 2016*

**us history**

Thank you. Your the best!

*March 29, 2016*

**us history**

I do not need your help I need help from Ms. Sue or another qualified teacher. Thank you.

*March 29, 2016*

**us history**

What was the main effect of the Civil War on the women's movement? A. The women's movement shifted their focus to helping widows of the Civil War. B. The movement was put on hold while women focused on anti-slavery reform and the war effort. C. The movement was ...

*March 29, 2016*

**Algebra**

An investor invested a total of $1900 in two mutual funds. One fund earned a 6% profit while the other earned a 2% profit. If the investor's total profit was $94, how much was invested in each mutual fund?

*March 25, 2016*

**math**

A metal worker has a metal alloy that 15% copper and another one is 70% copper. how many kilograms of each alloy should the metalworker combine to make 120kg of a 48% copper alloy?

*March 25, 2016*

**math**

A metal worker has a metal alloy that 30% copper and another one is 55% copper. how many kilograms of each alloy should the metalworker combine to make 50kg of a 50% copper alloy?

*March 25, 2016*

**Linear Algebra**

Diagonalize the matrix A = [1,1;-2,4] using a similarity transformation. Give the transformation matrices such that (C^−1)AC = D, where D is a diagonal matrix. (D, C) = ?

*March 23, 2016*

**Math**

Write a function that represents the situation. Find the balance A in the account after the given time period t. $2000 deposit that earns 5% annual interest compounded quarterly; 5 years A function is A= The balance of the account after 5 years is $_

*March 22, 2016*

**Linear Algebra**

Diagonalize the matrix A = [1,1;-2,4] using a similarity transformation. Give the transformation matrices such that (C^−1)AC = D, where D is a diagonal matrix. (D, C) = ?

*March 21, 2016*

**Linear Algebra**

Transform the matrix A=[5,−3;1,1], into a matrix B using the similarity transformation (C^−1)AC, with matrix C=[3,1;1,1]. B=(C^−1)AC = ?

*March 21, 2016*

**can someone help and explain plz**

what story is it ?

*March 20, 2016*

**Math**

which shape has 5 faces 5 vertices and 8 edges? triangular Pyramid** Rectangular pyramid Pentagonal pyramid

*March 17, 2016*

**Language Arts**

No not really, its more of many opinions that seem like facts would C, or D be better

*March 15, 2016*

**Language Arts**

Excerpt from “I Am a Native of North America” by Chief Dan George Man must love fully or he will become the lowest of the animals. It is the power to love that makes him the greatest of them all . . . for he alone of all animals is capable of love. Love is something ...

*March 15, 2016*

**Social Studies**

How did improvements in transportation, communication, farming, and manufacturing affect the economy of the North? Break down your answer by providing an example of advancement in each of the four areas. Then discuss how that improvement led to changes in the North’s ...

*March 15, 2016*