Monday

September 26, 2016
Total # Posts: 1,033

**Math**

A total of 120 students attend top view high school.the ratio of teachers to students is 1:30. Whats the answer

*September 22, 2016*

**Math**

120 students attend top view high school.the ratio of teacher to students is 1:30.

*September 22, 2016*

**Math**

During summer vacation, Sanjay writes letters and postcards to his friends at home. A letter costs $0.41 to mail and a postcard costs $0.21 to mail. Sanjay writes to 8 friends and spends $2.08. How many letters and postcards he sends.

*September 18, 2016*

**Math question urgent **

Mrs. Hart, at age 65, can expect to live for 25 years. If she can invest at 8% per annum compounded monthly, how much does she need now to guarantee herself $300 every month for the next 25 years? Present Value = 900(1 - 1.0041666..)^-300)/.0041666... = $153,954.05 I have ...

*September 17, 2016*

**Math**

Present Value = 900(1 - 1.0041666..)^-300)/.0041666... = $153,954.05 I have calculated this, but it is wrong. Any ideas?

*September 16, 2016*

**Math **

Mrs. Hart, at age 65, can expect to live for 25 years. If she can invest at 8% per annum compounded monthly, how much does she need now to guarantee herself $300 every month for the next 25 years?

*September 16, 2016*

**math**

Jeremy takes out a 30-year mortgage of 220000 dollars at an annual interest rate of 7 percent compounded monthly, with the first payment due in one month. How much does he owe on the loan immediately after the 87th payment? I have tried 204311.1024, but not successful

*September 16, 2016*

**Geometery**

2x-2+2x=54 4xx-2=54-2 4x/4 = 52/4 x=13

*September 13, 2016*

**Math**

A ship starts at port P, sails 226 deg (T) for a distance of 120 km. 1. How far south of P is it? 2. How far west of P is it?

*September 4, 2016*

**physics**

you walk 95.0 m at a speed of 1.26 m/s and then run 95.0 m at a speed of 3.61 m/s. what is the average velocity?

*August 21, 2016*

**World history**

A c b

*August 10, 2016*

**World history**

1Which of the following would john locke most favor Republic Oligarchy Theocracy Absolute monarchy 2Whay was james i resistant to working with parliament He believed in the absolute power of kings He did not agree with the policies of the prime minister 3Which statement gives ...

*August 10, 2016*

**Management Science**

For your phone calls, you can either A) buy a prepaid monthly plan, or B) pay as you go. A cost $50 per month and calls are free up to 8hrs. Any extra min for that month will cost you $.25. B has a cost of $.15 per minute. What are the two total cost if you plan to talk for 5 ...

*June 17, 2016*

**Science PLEASE CHECK ALL**

Ah, wow. The silent treatment. Okay. Well. Thanks for the help? I guess? I don't know. This is stupid. Thanks anyway... lazy tutors.

*May 10, 2016*

**Science PLEASE CHECK ALL**

But... are they all correct?

*May 10, 2016*

**Please? Anyone?**

I really, really need someone to check over this. :)

*May 10, 2016*

**Science PLEASE CHECK ALL**

1. Under which of the following conditions would a fossil most likely form? A. A living thing dies and sediment is very slowly deposited on top of its body. B. A living thing dies and sediment quickly covers its body. *** C. A living thing dies and its skeleton is left exposed...

*May 10, 2016*

**Science CHECK ALL**

1. Under which of the following conditions would a fossil most likely form? A. A living thing dies and sediment is very slowly deposited on top of its body. B. A living thing dies and sediment quickly covers its body. *** C. A living thing dies and its skeleton is left exposed...

*May 9, 2016*

**chem II**

calculate the number of moles of solute present in 50.0g of an aqueous solution that is 1.5m NaCl.

*May 2, 2016*

**MATH **

The Eiffel Tower has a surface area of approximately 76,000 square meters. A restoration company charges $80 per sq yard for re-painting. How muuch will it cost to paint the Eiffel Tower

*May 2, 2016*

**Accounting 220**

On January 1, 2014, Muoy Machining Co. purchased a compressor and related installation equipment for $72,500. The equipment had a three-year estimated life with a $12,500 salvage value. Straight-line depreciation was used

*April 30, 2016*

**Math**

Allan gave 5/8 of his money to his son and then gave his daughter 1/2 of the remainder. He kept $150.00 for himself. How much money did Allan have at the beginning? How much money did his son get?

*April 27, 2016*

**math**

If ribbon costs $3.50 for 25 inches, then how much does 2 yards of ribbon cost?

*March 31, 2016*

**BRCharter Academy**

Explain how the line plot would change if you measure a purple pen that is inches long

*March 3, 2016*

**Chemistry**

How many millimoles of HCl (aq) are neutralized by 0.35 g of CaCO3 (sol)? mmol

*March 2, 2016*

**Statistics**

A volunteer ambulance service handles 0 to 5 service calls on any given day. The probability distribution for the number of service calls is as follows: one column has number of service calls (X) those numbers are 0 1 2 3 4 5. The next column Probability P (X) those numbers ...

*February 13, 2016*

**Chemistry**

ahh thank you so much!

*February 12, 2016*

**Chemistry**

Three isotopes of Neon occur naturally: 20Ne (mass = 19.9924 amu) 21Ne (mass = 20.9938 amu) 22Ne (mass = 21.9914 amu) If the percent abundance of 21Ne is 0.2600, what is the percent abundance of 20Ne? How do I set up for these type of problems. I tried just using two and ...

*February 12, 2016*

**Chemistry**

How do you Find the mass (in g) of Carbon in 2.980 g Carbon dioxide? I saw the question asked before but couldn't find a solution.

*February 12, 2016*

**math**

Area of a triangle is72cm squared base=12 height=?

*February 11, 2016*

**chemistry**

A metal tank contains three gases: oxygen, helium, and nitrogen. If the partial pressu of the three gases in the tank are 5 atm of O2, 900 mm Hg of N2, and 1.4 kPa of He what total pressure inside of the tank?

*February 1, 2016*

**COLLEGE ALGEBRA**

Find the dimensions of a rectangle with a Perimeter of 100 cm - its width is 2/3 its length.

*January 31, 2016*

**Chemistry**

How many grams of aluminum sulfate are produced if 15.7 g Al reacts with excess CuSO4?

*January 20, 2016*

**Check my answers Ms. Sue?**

I posted this in my last question but its not showing up for me.. But i have redone the questions you said were wrong and i was hoping you would check them again 1. How did the southern economy change after the Civil War? Shipped raw materials to northern states for processing...

*January 19, 2016*

**how do i show my work math**

how much is 1/3

*January 19, 2016*

**how do i show my work math**

okay

*January 19, 2016*

**how do i show my work math**

show your calculations

*January 19, 2016*

**how do i show my work math**

You would explain how you got the answer

*January 19, 2016*

**World History Check my answers**

Thank you!

*January 19, 2016*

**Ms. Sue Help again??**

Iv'e redone the wrong answers. 1. How did the southern economy change after the Civil War? Shipped raw materials to northern states for processing Plantations were replaced by a new system of sharecropping and tenant farming.* 3. Which economic philosophy allowed American ...

*January 19, 2016*

**World History Check my answers**

1. How did the southern economy change after the Civil War? Southern farmers focused on one main cash crop.* Shipped raw materials to northern states for processing Plantations were replaced by a new system of sharecropping and tenant farming. 2. The Bessemer process was used ...

*January 19, 2016*

**World History Check my answers**

Okay so i put a star* by each of my answers.

*January 19, 2016*

**Chemistry**

A 50.0g sample of copper at 10.0 C is placed in 200.0g H20 at 40.0 C in a calorimeter. Heat flows from the water to the copper until both are at 39.3 C. What is the specific heat of copper? (Csp H20 is 4.18J/g*C.) I don't have any idea how to do this problem. If someone ...

*January 13, 2016*

**Math**

Two ships leave port at 4 p.m. One is headed N38°E and is travelling at 11.5 km/h. The other is travelling at 13 km/h, with heading S47°E. How far apart are the two ships at 6 p.m.? i am in grade 11 :), studying ahead of the class :) its 8 pm here, this question is ...

*January 3, 2016*

**math**

Two ships leave port at 4 p.m. One is headed N38°E and is travelling at 11.5 km/h. The other is travelling at 13 km/h, with heading S47°E. How far apart are the two ships at 6 p.m.?

*January 1, 2016*

**Hunt**

Wyatt and Allyson were asked to solve a percent problem using the number 13 and 38. Wyatt found 13% of 38 and allyson found 38% of 13. Explain why they both got the same answer. Would this work for other numbers as well? Why or why not?

*December 8, 2015*

**Physics**

A 5000 kg truck rear ends a 2500 kg car. Both vehicles applied brakes at the moment of the impact and began to skid. After the impact, the acceleration of the truck is -2 m/s and the acceleration of the car is -3 m/s. If the car skid for 30 m and the truck for 2 m, how fast ...

*December 4, 2015*

**English Grammar**

Is there anything you need to specif at today?

*December 4, 2015*

**Math **

Part A: Max rented a motorbike at $465 for 5 days. If he rents the same motorbike for a week, he has to pay a total rent of $625. Write an equation in the standard form to represent the total rent (y) that Max has to pay for renting the motorbike for x days. Part B: Write the ...

*November 25, 2015*

**science**

A glass bottle has a volume of 1L and weighs 500g. When half filled with oil, it weighs 1750g. What is the density of the oil in the bottle?

*November 22, 2015*

**chem**

The mystery compound CxHy is completely reacted with O2 to yield 44 gr CO2 and 18gr H2O. What is the empirical formula of CxHy? I got : C1H2 How much O2 in grams was used in this reaction??

*November 3, 2015*

**chem**

Is it 2E-11?

*November 3, 2015*

**chem**

Assume that the atomic diameter of an atom of element X is 2A and that 1.0 x 10(16th) atoms are arranged in a simple 2D square array. What is the length of each side in cm?

*November 3, 2015*

**chem**

I don't understand it either. I typed it exactly as it is asked. Except the > represents and arrow.

*November 3, 2015*

**chem**

Consider the unbalanced reaction CO + H2O > CH4 + O2. All reactants in the gas phase. Calculate the H per mole of H2O reacted.

*November 3, 2015*

**chem**

So Fe304 is being reduced and C is the reducing agent? Would the initial and final oxidation states be C and 2C?

*November 3, 2015*

**chem**

When balancing the following, what is being reduced, what are the reducing agents, and what is the initial and final oxidation states of the reduction agent? Fe3O4(s) + C(s) > CO2 (g) + Fe

*November 3, 2015*

**chem**

Fe3O4(s) + C(s) > CO2 + Fe Balance the chemical reaction and calculate how many moles of Fe3O4 must be reacted to produce 440 gr CO2 (the > is an arrow)

*November 2, 2015*

**chem**

But how do I convert 2.0 x 10 (-13) km to cm?

*November 2, 2015*

**chem**

2.0 x 10(exp-13) km/0.01=

*November 2, 2015*

**chem**

Consider the unbalanced reaction CO + H2O > CH4 + O2. All reactants in the gas phase. Calculate H per mole of H2O reacted. (The > is an arrow)

*November 2, 2015*

**Statistics**

At the end of the Halloween Festival the organizers estimated that a family of participants spent an average $45.00 with a standard deviation of $12.00. What’s the probability that the mean amount spent will be between $20 and $30?

*October 21, 2015*

**6th Grade Math**

Caleb sold boxes of candy. Some sold for $2, and some sold for $3. He sold a total of 35 boxes and received $92. How many boxes did he sell for $2?

*October 7, 2015*

**Distributed Management System**

what is the crow's foot ERD of this problem?

*October 4, 2015*

**Math**

89=(93 + 86+ 92+ 80+ x) / 5 Solve for 89 x 5 = 445 Add other grades 93+86+92+80=351 445-351=x x = 94

*October 2, 2015*

**Math**

Ryan's average for 5 arithmetic test was 89. On four of the tests he made 96,86,92, and 80. What did he make on the fifth test?

*October 2, 2015*

**Math**

A recipe or trail mix calls for 1/4 cups of raisins, 1 1/2 cups of granola, 1/2 cup of mixed nuts, and 1/8 cup of chocolate chips. What fraction of each ingredient is required to make 5 1/2 recipes

*September 24, 2015*

**Physics **

The tortoise and the hare are in a race of 1000m distance. The tortoise travels the entire race at a speed of 2.0 m/s while the rabbit runs the first 200 m @ 2.0 m/s. Then he stops to take nap for 1.3 hrs and awakens to finish the last 800m with an average speed of 3.0 m/s. ...

*September 22, 2015*

**geometry **

M is the midpoint of JK. find the coordinates of K. 1. J (-8,4) M (-1,1) 2. J (9,-5) M (5, -2) 3. J (0,11) M (-3,2)

*September 21, 2015*

**physics**

A particle accelerates from rest at a uniform rate of 3 m/s^2 for a distance of 200m. -how fast s the particle going at that time? -how long did it take for the particle to reach that velocity?

*September 18, 2015*

**Physics**

Nitrogen boils at -196°C. What is the corresponding temperature in the Fahrenheit scale? A) -290°F B) -346°F C) -315°F D) -196°F E) -321°F

*September 9, 2015*

**Physics **

On a drive from your home to town, you wish to average 52 mph. The distance from your home to town is 108 miles. However, at 54 miles (half way), you find you have averaged only 39 mph. What average speed must you maintain in the remaining distance in order to have an overall ...

*September 9, 2015*

**Physiology**

Yes I do. This is part of my physiology class. Not every professor has the same structure to their lectures

*September 8, 2015*

**Physiology **

How many is moles are in 0.5L of a 3.0M solution of sodium chloride? Sodium chloride dissociates into 2 osmoles per mole. I'm having trouble setting this up. My teacher couldn't explain it clear enough and neither does the book.

*September 8, 2015*

**AP Algebra**

Thank you Steve! Sorry about the "pi" . . Thanks again!

*September 1, 2015*

**2 questions in one post sorry!! **

Accidently put my 2 question as answer to my first question sorry!! Hope someone still answers

*September 1, 2015*

**AP Algebra**

A sphere of metal measures 4.6 cm in radius and has a density of 7.9 g/cm^3. What is the mass of a sphere? FYI: use V=4/3*pie sign*r^3 . . How would I set it up in dimensional analysis?

*September 1, 2015*

**AP Algebra**

A man's average speed is 4.86 miles per hour. Express this in cm/sec .*dimensional analysis* .. the teacher answer is "217.32 cm/sec" however mine came out to be "217.26" My work: (4.86m/hr)(5280ft/1m)(12in/1ft)(2.54cm/1in)(1hr/3600sec) = 217.26cm/sec ...

*September 1, 2015*

**Ap algebra**

Question 1: if a function is undefined at a point can that point be its domain. Explain Question 2: explain what is meant by the minimum value of a function

*August 26, 2015*

**Math **

Explain whether a function that has a slope of 0 can have the attribute of symmetry. . My answer is yes, because even though there is no slope you still have a possibility of it being symmetrical to the y axis depending on the domain. Am I correct

*August 26, 2015*

**Math**

The food that the average American consumes in a day provides 2.0 X 10^3 kcal of energy. How many calories a sec is this? *how to set up work in dimensional analysis*? & *what is "k" in kcal stand for*?

*August 26, 2015*

**Math**

Diamonds are measured in units called a carat. One carat equals 200mg. If a diamond is 0.600 carat, what is the mass of the diamond in ounces? * 1kg=2.205 pounds* *1pound= 16 ounces* . . How do I get to the answer showing work/setting it up?

*August 26, 2015*

**social psych**

A

*August 26, 2015*

**math**

A bag of candy contains 24 oz. If you want to give 18 people equal servings how many ounces should you give each person? 18/24 =3/4

*August 24, 2015*

**introduction to computers**

You need to install an operating system on a computer that will be sharing files for the company employees. You estimate there will be as many as 15 users accessing these files at one time. Which operating system below is ideally suited for this machine? A

*August 18, 2015*

**Spanish 2**

Dear Profesora, Can you check my answers? 11 of 21 Grammar Questions: Choose the best answer to express the given statement or question. Creo que el poema ______________ por Pablo Neruda. escribió fue escrito** fuera escrito escriba unable to answer Question 12 of 21 ...

*August 13, 2015*

**Math**

A certain recipe requires 6 2/7 cups of flour and 7 2/9 cups of sugar. A) if 6/5 of the recipe is to be made, how much sugar is needed? Write your answer as a proper or improper fraction: B) if the above ingredients are required for one batch, find the amount of flour needed ...

*August 1, 2015*

**Math**

In a full parking lot, there are 35parking spots and 80 wheels. How many cars are there and how many motorcycles are there?

*July 25, 2015*

**math**

p. 84 no.10 (from Solid Mensuration: Understanding the 3D Space book by Earnhart) Plane A which contains an isoceles right triangle forms a dihedral angle of 60 degrees with another plane B. If the hypotenuse of the triangle lies in plane B and measures 8 inches, find the ...

*June 28, 2015*

**calculus1**

Find extrema of f(x)=1-(x to the 2/3) on interval [-1,8]

*June 11, 2015*

**calculus1**

f(x)=2secx-tanx, -π/2<x<π/2 find the points at which the tangent is horizontal

*June 11, 2015*

**calculus1**

Find the arc length of the graph of the equation y+1/4x+x^3/3=0 from the point(2,67/24) to point(3,102/12) help me with this thanx!

*June 11, 2015*

**calculus1**

Find the arc length of the graph of the equation y+1/4x+x^3/3=0 from the point(2,67/24) to point(3,102/12) help me with this thanx!

*June 10, 2015*

**calculus1**

Hi, I have 3 problems here need to be solved, help me please 1.Evaluate ∫ sin2x sec^5(2x)dx 2. If f(x)=√x and P is a partition of [1,16] determined by 1,3,5,7,9,16,find a Riemann sum Rp of f by choosing the numbers 1,4,5,9 and 9(yes 9 again) in the subintervals of ...

*June 10, 2015*

**calculus1**

Approximate the real root of cosx+x=2 to four decimal place. (Using Newton's method) I need help with this! Thank you

*June 9, 2015*

**calculus1**

Great! Except that you wrote "area" instead volume....:P

*June 9, 2015*

**calculus1**

Region R is bounded by x=2-2y^2 and x=1-y^2 find the volume of the solid generated if R is revolved about the y-axis Anybody help me with this? thanks!

*June 9, 2015*

**calculus1**

Set up the integrals that can be used to find the area of the region by integrating with respect to X and Y (the region is bounded by y=3x,y=x,y=4-x) Anyone help me set up the integrals??

*June 8, 2015*

**Social studies**

Ms sue I relly need help its during the republic

*May 28, 2015*

**Social studies**

Hello are u still there ???? I really need help por favor(that means please)

*May 28, 2015*