Sunday

May 24, 2015

May 24, 2015

Total # Posts: 761

**Physics**

An object is placed 20.0 cm to the left of a convex lens with a focal length of +8.0 cm. Where is the image of the object? A)28 cm to the right of the lens B)13 cm to the left of the lens C)13 cm to the right of the lens I think its A but I'm not sure
*May 21, 2015*

**math**

City wide delivery service uses vans costing $24800 each. How much will the company have to invest today to accumulate enough money to buy six new vans at the end of 4 years? City wides bank is currently paying 12% interest compounded quarterly
*May 6, 2015*

**math**

In the North Carolina Education Lottery "Pick Three Game" there are 75 balls in the machine. Your lucky numbers are 7, 14, and 21. The numbers must be drawn in that order. What's the probability that you'll win the $500.00 prize?
*April 22, 2015*

**math**

In a pack of 52 cards, 4 of the cards are Kings. The first card is picked, the results are recorded and the card is returned to the deck. Then the second card is picked. Find the probability of picking two kings. Be sure to represent your answer as a fraction in simplest form.
*April 22, 2015*

**math**

A bag of marbles contains 8 red marbles and 6 yellow marbles. Two marbles are drawn out of the bag at random without replacement. What is the probability that two red marbles are drawn out? Be sure to represent your answer as a fraction in simplest form.
*April 22, 2015*

**math**

A bag of marbles contains 8 red marbles and 6 yellow marbles. Two marbles are drawn out of the bag at random without replacement. What is the probability that first a red marble then a yellow marble are drawn? Represent your answer as a fraction in simplest form.
*April 22, 2015*

**math**

Gary produces 52 more than 4times what Harold can produce in one day . If Gary's total production for the day is 202 how much does Harold produce in one day.
*April 21, 2015*

**math**

If interest on a $4,500 loan is $ 720 What would be the interest on a loan $5,800
*April 21, 2015*

**science-chemistry**

if 1g of carbon dioxide is bubbled into 100g of a calcium hydroxide solution in a flask. what is the total mass of substance in the flask after the reaction is complete?
*April 18, 2015*

**science**

if 1g of carbon dioxide is bubbled into 100g of a calcium hydroxide solution in a flask. what is the total mass of substance in the flask after the reaction is complete?
*April 18, 2015*

**maths**

Write 5x-3 in positive index
*April 18, 2015*

**English **

I need help answering some To Kill A Mockingbird questions 1.When Scout is talking about the Ewells' living conditions what is her tone? Is it sympathetic or disparaging or objective? I think it's sympathetic 2. When the story is talking about Mayella 's red ...
*March 31, 2015*

**Algebra 2**

Can you please help me solve these problems? Thank You 1.x^2-y^2=25 x^2+y^2+7=0 2. x^2+y^2=8 5y^2=3x^2 3. 3x^2-2y^2=24 2y=-3x
*March 30, 2015*

**English **

What does this mean "beyond hope of help from any source" when describing the Ewells in To Kill A Mockingbird? It's not a quote from the book.
*March 29, 2015*

**Algebra 2**

Compare the graphs of the inverse variations by comparing asymptotes, similar points, lines of reflections, and quadrants. y=-0.7/x and y=-0.9/x
*March 22, 2015*

**history Ms.sue**

okay thanks
*March 19, 2015*

**history Ms.sue**

did George W. bush have kids? help it's a bio for my teacher
*March 19, 2015*

**History**

Ummm... yes and u would just bio of Someone.. -jasmine-
*March 19, 2015*

**math **

A football team gained 4 in one play. In the next play, the team lost 4 yards. What is the team's net yard gain.
*March 16, 2015*

**English-Please Help**

Yep they are all right but 10***
*March 13, 2015*

**Math**

It took Michael 15 minutes to walk from his house to his friends house would you measure the distance he walked in linear or square units ?
*March 12, 2015*

**MATH miss.sue**

kay thanks
*March 11, 2015*

**MATH miss.sue**

okay 4 friends had 19 Pieces of candy and how many pieces of candy will each friend get? HELP PLZ
*March 11, 2015*

**health**

In what way does your body's need for nutrients change when you are training for sports or competition?
*March 11, 2015*

**Math **

The bottom end of a 14 foot loading ramp is 10.7 feet away from the entrance to the building. Find the angle the ramp makes with the ground.
*March 8, 2015*

**Math**

If a ten foot tower casts a thirteen foot shadow on the ground, what is the angle of elevation of the sun?
*March 8, 2015*

**MatLab**

In Matlab Write a function file that determines the following sum (for all odd n from 1 to 11): y=Ó 2^n/n
*March 2, 2015*

**MATH AGAIN~Ms. Sue**

yes Leila ms sue is real i think
*February 24, 2015*

**Physics**

In a hydroelectric installation, a turbine delivers 1500 hp to a generator, which in turn transfers 80.0% of the mechanical energy out by electrical transmission. Under these conditions, what current does the generator deliver at a terminal potential difference of 1910 V?
*February 16, 2015*

**Physics**

A battery has an emf of 15.0 V. The terminal voltage of the battery is 11.2 V when it is delivering 26.0 W of power to an external load resistor R. (a) What is the value of R? (b) What is the internal resistance of the battery?
*February 16, 2015*

**calculus**

Two forces of 7 lb. and 14 lb. act on a body at right angles to each other. Find the angle their resultant force makes with the force of 14 lb.
*February 13, 2015*

**business calc**

52,000 for a loan and a monthly payment of 450.23 for 30 years ?
*February 3, 2015*

**algebra 2**

im confused
*January 30, 2015*

**algebra 2**

f(x)=3x-7 and g(X)=-2x-6. Find (f o g)(4)
*January 30, 2015*

**Algebra 2**

f(x)-g(x)= -2x+4-(-6x-7) 12x+14+24x-28 -12x+14 is this the right answer?
*January 30, 2015*

**Algebra 2**

let f(x)=-2x+4 and g(x)=-6x-7 find f(x)-g(x) please help me with the steps? I'm so confused..
*January 30, 2015*

**Algebra 2**

what is the inverse of the given relation? y=3x+12 help explain the steps??
*January 29, 2015*

**Algebra**

let f(x)=-2x+4 and g(x)=-6x-7 find f(x)-g(x) Can someone walk me through this problem? I still haven't gotten the hang of it.
*January 28, 2015*

**math**

Kaitlin has four and two-thirds berry pies. She is going to share it equally among 12 people. How much pies will each person get?
*January 22, 2015*

**math models**

Help on why did the ghost decide to haunt the city hall
*January 13, 2015*

**math**

Evan buys 2 CDs. $1.49 is added to the total price which is the 5% sales tax. What is the cost for each of the CDs?
*January 2, 2015*

**science **

NaOH + HSO -+ Which of the following is the number of moles of NaOH required to neutralize 1 mole of H2SO4 in the equation above?
*December 18, 2014*

**Math**

Explain how you would find 2 x 2 1/3 using the distributive property.
*December 16, 2014*

**Math**

Why are the estimates of 6/10 x 18 shown below different? Is one estimate better than the other?
*December 15, 2014*

** Math**

Estimate each product of 4 5/8 x 1/3=
*December 15, 2014*

**math**

April is training for a marathon by running no less than 55 km per week. She runs at an average rate of 10 km per hour. What is the minimum number of hours, h, she should run? 10h ≥ 55; h ≥ 5.5; 5.5 hours 10h ≤ 55; h ≤ 5.5; 5.5 hours h over ten > 55...
*December 13, 2014*

**math**

The length of a piece of paper is 8.5 inches. Using scissors, you reduce the length of the paper to 4.25. What is the scale factor of the dilation? A- 1/4 B- 1/2 C- 2 D- 4 I think its A ?
*December 11, 2014*

**Algebra 2**

A simple random sample of 50 adults was surveyed, and it was found that the mean amount of time that they spend surfing the Internet per day is 54.2 minutes, with a standard deviation of 14.0 minutes. What is the 99% confidence interval for the number of minutes that an adult ...
*December 9, 2014*

**Algebra 2**

A textbook company states that the average time a student needs to take a quiz from its book is 30 minutes with a standard deviation of 3 minutes. A teacher using the book is not sure that this is correct for her classes and wants to check. She collects data on 10 random ...
*December 9, 2014*

**Algebra 2**

A simple random sample of 90 is drawn from a normally distributed population, and the mean is found to be 138, with a standard deviation of 34. What is the 90% confidence interval for the population mean? Use the table below to help you answer the question. Confidence Level 90...
*December 9, 2014*

**Algebra 2**

A study investigated the job satisfaction of teachers allowed to choose supplementary curriculum for their classes versus teachers who were assigned all curricular resources for use in their classes. On average, when surveyed regarding job satisfaction, teachers give a score ...
*December 9, 2014*

**Algebra 2**

A study investigated the job satisfaction of teachers allowed to choose supplementary curriculum for their classes versus teachers who were assigned all curricular resources for use in their classes. The authors of the study wanted to know if the two groups of teachers had ...
*December 9, 2014*

**Algebra 2**

A study investigated the job satisfaction of teachers allowed to choose supplementary curriculum for their classes versus teachers who were assigned all curricular resources for use in their classes. The authors of the study wanted to know if the two groups of teachers had ...
*December 9, 2014*

**Finance**

A manufacturing company is thinking of launching a new product. The company expects to sell $950,000 of the new product in the first year and $1,500,000 each year thereafter. Direct costs including labor and materials will be 45% of sales. Indirect incremental costs are ...
*December 3, 2014*

**Math**

In triangle ABC, the measure of C is twice the measure of A, and the measure of B is 6 times the measure of A. Find the measure of each angle
*November 27, 2014*

**English**

Yes I did the site was very helpful. We are going thru our print out now..thank You
*November 18, 2014*

**English**

Sorry Writeacher we are having a study group and we are all using same pc. I will tell all we can use same name...thank You
*November 18, 2014*

**English**

The physician discussed problems faced by everyone, and the response was positive. This is a compound sentence I would think no comma is necessary.
*November 18, 2014*

**math **

14. Simplify the expression. -5+i/2i
*November 18, 2014*

**math **

15. What is the solution of the linear-quadratic system of equations? y=x^2+5x-3 y-x=2
*November 18, 2014*

**history**

thx for the help...
*November 12, 2014*

**history**

1. Which group believed a strong national government was critical to the country? federalists anti-federalists
*November 12, 2014*

**English**

Think about all the selections you've read this far by European writers. Examine one element that the selections have in common, not including the fact that they are all European. Detail your findings.
*November 3, 2014*

**Principles of Accounting**

Santa Fe Company purchased merchandise for resale from Mesa Company with an invoice price of $24,000 and credit terms of 3/10, n/60. Prepare entries that the buyer should record for the purchase
*October 22, 2014*

**phi**

“If you are born in the U.S. then you are a U.S. citizen. You were not born in the U.S. so you are not a U.S. citizen.” (Points : 1) Slippery Slope Denying the antecedent Post Hoc False Dichotomy No Fallacy
*October 20, 2014*

**english**

because keeshwas of 13 only bcz of he has seen 13 suns before his fathers death
*October 11, 2014*

**Physics**

A swordfish swims at 2.46km/h.How far has the fish traveled after 2050s?
*October 8, 2014*

**math**

mrs.mcdermott is giving 6 students 3 piecies of candy.how many piecies did she give to all students?
*October 6, 2014*

**Philosphy**

DuBois claims that this occurs when the stronger members in society do not protect the weaker members:
*September 30, 2014*

**algebra**

can you help me with the Lesson 9: Operations and Applications of Scientific Notation Connections Education 1205070 M/J PRE-ALG - T1 Unit 2: Rational Numbers test.What is the product of (5.1*10^3)*(3.2*10^3)? (please express your answer in scientific notation.)
*September 25, 2014*

**algebra**

graph shows the equation c = 10+ 3t, where c is the total cost of going to the carnival and t is the number of $3 tickets purchased?
*September 16, 2014*

**chem**

which nuclides would you expect to be stable? a) 48K b)79Br c)Argon-32
*September 15, 2014*

**physics**

A square conducting slab with 7 m sides carries a net charge of 89 mu or micro CC. what is the electric field?
*September 14, 2014*

**statistics**

Let E and F be two events for which the probability of atleast one of them occurs is 3/4. what is the probability that neither E nor F will occur.
*September 11, 2014*

**chem**

the volume of a certain bacterial cell is 1.39um^3. what is its volume in mm^3? what is the volume of exactly 1e4 cells in liters
*September 8, 2014*

**C programming**

I changed some things and now it is atleast coming out with a calculation but it is the wrong answer
*September 7, 2014*

**C programming**

#include <stdio.h> #include <math.h> int main (void) { //Local Declarations float angleX; // Angle inputed by the user float coshx; // hyperbolic cosine of angle x //Statements printf ("\nEnter angle in degrees:"); scanf ("%f", &angleX); //...
*September 7, 2014*

**C programming**

I am suppose to create a code that uses the pow function in math.h to calculate the hyperbolic cosine when the user inputs an angle x. the equation I have to use is cosh x= e^x + e^-x /2 can someone check my code. I am not sure what i am doing wrong. do I have to declare the ...
*September 7, 2014*

**Algebra**

thank you
*September 2, 2014*

**Algebra**

James has to buy juice for his class party. There are several brands of juice at the store, and each container is a different size and price. Write a formula that will help James find the price per milliliter for each brand. Let x= price of juice, y= number of milliliters in ...
*September 2, 2014*

**Algebra 1**

Victor needs to calculate the number of miles per gallon his car averages. His car's gas tanks holds 15 gallons of gas. Write an equation that will help him determine the average number of miles per gallon. Let's let x= number of miles traveled, and y= average miles ...
*September 2, 2014*

**physics**

(a) Find the charge on each sphere.
*September 1, 2014*

**physics**

Two identical small spherical conductors (point charges), separated by 0.6 m, carry a total charge of 200 mu or micro CC. They repel one another with a force of 120 N. (For the universal constant k use the value 8.99 times 109 N m2/C2.) I think i am suppose to use E=kQ/r^2 . ...
*September 1, 2014*

**science**

what does the T stand for?
*August 31, 2014*

**science**

A particle leaves the origin with a speed of 2.4 times 106 m/s at 38 degrees to the positive x axis. It moves in a uniform electric field directed along positive y axis. Find Ey such that the particle will cross the x axis at x = 1.5 cm if the particle is an electron.
*August 31, 2014*

**math**

the integral from -2 to 1 of 1/(x^2 +4x+13)
*August 23, 2014*

**calc**

d/dx of taninverse e^3x i know tan inverse is 1/1+x^2 but im not sure what to do with e^3x?
*August 22, 2014*

**Philosphy**

According to Cady Stanton, the least bad form of subjection of women is based in this
*July 28, 2014*

**Philosphy**

Hill claims that a fruitful way to think about the badness of destroying the environment is: To think about what kind of human would choose to destroy the earth. To appeal to theories about God and care for the earth. To examine people’s intuitions about whether it is ...
*July 21, 2014*

**philosophy**

What is not an example of a practice, according to MacIntyre’s account the military. Farming. Throwing a football. Education.
*July 21, 2014*

**Philosphy**

Which of the following does Peter Singer assert about the principle of equality
*July 7, 2014*

**Math**

There are 52 coins that consists of pennies, dimes, and quarters. Two stacks have the same number of coins and the third stack has twice as much. The coins equal to $5.98. How many pennies, dimes, and quarters are there? I already found out that two stacks have 13 coins and ...
*June 1, 2014*

**math**

What number can be removed from the following list of data so that the median will remain the same? 40, 28, 29, 32, 16, 40, 35 A. 28 B. 32 C. 35 D. 40
*May 19, 2014*

**Help me trig.**

solve the equation in the interval [0,2pi) tan (t/2)-sint=0
*May 14, 2014*

**Trig**

Find a parametric equation for the ellipse. Make sure that the graph of your parametric equation is a complete ellipse. 3x^2+4y^2=12
*May 14, 2014*

**History -- PLEASE CHECK!**

Ok, thank you.
*May 13, 2014*

**History -- PLEASE CHECK!**

I did read the article... Is it C then?
*May 13, 2014*

**History -- PLEASE CHECK!**

Is it D?
*May 13, 2014*

**History -- PLEASE CHECK!**

In the 1980s an alterative music form began developing in Washington State. This music, called grunge, combined elements of punk and heavy metal. Like most new bands, grunge bands started playing in small crowds and slowly became popular. Which of the following correctly ...
*May 13, 2014*

**geomerty**

jasmine
*May 12, 2014*