Posts by Ashley

Total # Posts: 3,491

math
It takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. If both machines are used, how long will it take them to pick a bale of cotton?

pre-algebra
what number sets does 0.125185623 belong to? I really don't get the concept of number sets such as integers, whole #'s, rational,and irrational. Please help!

Physical chemistry
13.5ml of hydrogen iodide are produced by the reaction of 8.1ml of hydrogen and 9.3ml of iodine vapor at444°c. Calculate the Kc at this temperature

Physical chemistry
At a certain temperature 0.1moles of hydrogen gas and 0.1 moles of iodine gas were placed in 1 litre flask. It was found that the concentration of iodine decreased to 0.02moles per litre. Calculate the value of the Kc for the reaction

Social studies
Why is the United states so varied

Physics
A flat mirror that is 0.85m tall is attached to a wall so that its upper edge is 1.7m above the floor. Use the law of reflection and a ray diagram to determine if this mirror will show a person who is 1.7m tall his or her complete reflection. I don't know how to draw it, ...

math
One printing press can print 5,000 advertising cards in 12 seconds. Another printing press can print the same number of cards in 7 1 2 seconds. If both presses are used together to print the 5,000 cards, how many seconds will it take them? same with this one but i tried an ide...

math
A firm advertises for workers to address envelopes. Priscilla says she will work 100 hours. Herb will work for 80 hours. If each can address 10,000 envelopes in the time they work, how long would it take them to address 10,000 envelopes if they work together? i am lost, can ...

physics
As a hiker in Glacier National Park, you are looking for a way to keep the bears from getting at your supply of food. You find a campground that is near an outcropping of ice from one of the glaciers. Part of the ice outcropping forms a 55.5° slope up to a vertical cliff. ...

Social Studies
Were those who wanted the cherokees' land influenced by the fact that the cherokee signers the 1835 treaty had acted illegally?

algebra
Nancy can do a typing job in 8 hours. When Carole helps her, they can do the job together in 5 hours. How many hours would it take Carole to do the job alone? i got that carole can fo it in 13 hours and 20 minutes alone is this right?

Algebra
i just remembered that it says how many hour so woul it be 55 hours or 56 becuse of the .38

Algebra
One pump can fill a reservoir in 60 hours. Another pump can fill the same reservoir in 80 hours. A third pump can empty the reservoir in 90 hours. If all three pumps are operating at the same time, how long will it take to fill the reservoir? i got 55.38 hours but i want to ...

Algebra
Bill can mow the lawn in 2 hours, and his younger brother Tom can mow it in 3 hours. If both brothers mow the lawn together, how many hours will it take them? i got that i would take one hour and 12 minutes

math
what is 10 times as much as 950?

geometry
so far i got that angle ACB is equal to 30 degrees because all angles in a traingle quals to 180 degrees is this right

geometry
this is my last one, in triangle ABC, mesurment of angle CAB is equal to 60 degrees and point D belongs to the line BC and AD is equal to 8 ft. Find the distances from D to the sides of the triangle. honestly i have absolutly no ideaon to how tosolve this can you give me an ...

geometry
Prove that a triangle with sides : x^2-1, 2x, and x^2 +1 is a right triangle. i substituted the "x"s with 2 and got 5, 4, and 3 and i said that because of the common pythagorean triplets this triangle is a right trianlg is there another way to prove this is a right ...

Geometry
in triaangle ABC, AB=20 cm, AC=15 cm the length of the altitude AN is 12 cm prove that ABC is a right triangle so far i got that angle ANC is 90 degrees by definition on altitude i got really confused after so can you show me how to answer the question and the soulotion please.

Social Studies
After studying the behavior of parent and their children, it became evident to Kaye that?

Mathematics
The second and fifth terms of a geometric progression (g.p) are 1 and 8 respectively. Find the common ratio,first term, and the eight term.

math
Steven is moving to another city next weekend and wants to rent a moving truck. The rental rates for two companies in his area are shown below. Each company charges an initial fee for renting the truck, plus an additional amount per mile. Calculate how much each company ...

Chemistry
Write the net ionic equation for the precipitation of zinc carbonate from aqueous solution:

Chemistry
You need to make an aqueous solution of 0.233 M magnesium nitrate for an experiment in lab, using a 125 mL volumetric flask. How much solid magnesium nitrate should you add? (fill in blank) __ grams

Chemistry
For an activation energy of 55.0kJ/mol,how much does the temperature have to change from 22 degrees Celsius to produce a doubling of the rate constant?

Chemistry
Write out the ionic and net ionic equations of Ca(OH)2 + HNO3 ---> Ca(NO3)2 + H2O

Chemistry
Am I supposed to multiply everything on the right side then divide it by 1800?

Chemistry
Find the final temperature, given that the initial temperature of a 40 g piece of Aluminum is 25 degrees Celsius and it is heated with 1800 J of heat. The specific heat capacity of Aluminum is 0.903

math
Jose is wrapping a stack of 100 coins in a paper holder. Each coin is 18 inch thick and has a diameter of 1 inch. How many square inches of paper will Jose need to cover the stack of coins? Use 3.14 for ?. Enter your answer in the box.

Chemistry
Thank you both!

Chemistry
A gas mixture is made by combining 7.2 g each of Ar, Ne, and an unknown diatomic gas. At STP, the mixture occupies a volume of 14.30 L. What is the molar mass of the unknown gas? Identify the unknown gas.

Chemistry
Thank you!

Chemistry
I apologize for my typo, I meant to write that the temperature increased by 2.8 degrees. Does that change anything or should I still just plug that into the formula?

Chemistry
When 3.926g of NaOH is added to 100.0mL of water, the temperature of the solution increases by 28 degrees Celsius. Assume the density of the solution to be 1g/mL and specific heat capacity of the solution to be 4.184 J/gK. I'm unsure of which formula to use. I was going to...

Geometry
During a high school track meet, each race consist of 9 competitors who are randomly assigend lanes from 1 to 9. What is the probability that a runner will draw lanes 1,2, or 3 in the next four races? Answer: Is the answer is 1/729 or 3/729, please help me. Thanks

Social Studies Business
ad is right

Math check?
What is the zero of the function? f(x)=x2?x?6x2?8x+15 Enter your answer in the box. -2

math help please check my answer
^lol we must have the same question ig? but thank you ms. sue!

math help please check my answer
A national garden club president thinks 70% of its members plant tulips for the spring. Phone calls were made to 100 members. Of the 91 members who responded, 76 said they plant tulips for the spring. What is the sample proportion? Round your answer to the nearest hundredth. ...

trig
An airplane has an airspeed of 450 kilometers per hour bearing Upper N45E. The wind velocity is 60 kilometers per hour in the direction Upper N30W. Find the resultant vector representing the path of the plane relative to the ground. What is the ground speed of the? plane? What...

financial accounting
Everett Co. was organized on July 1, 2015. Quarterly financial statements are prepared. The unadjusted and adjusted trial balances as of September 30 are shown below. EVERETT CO. Trial Balance September 30, 2015 Unadjusted Adjusted Dr. Cr. Dr. Cr. Cash $ 8,744 $ 8,744 Accounts...

financial accounting
Zumbrunn Company’s income statement contained the condensed information below. ZUMBRUNN COMPANY Income Statement For the Year Ended December 31, 2015 Service revenue $969,400 Operating expenses, excluding depreciation $624,480 Depreciation expense 59,260 Loss on disposal ...

financial accounting
The Skyline Motel opened for business on May 1, 2015. Its trial balance before adjustment on May 31 is as follows. SKYLINE MOTEL Trial Balance May 31, 2015 Account Number Debit Credit 101 Cash $ 3,537 126 Supplies 2,051 130 Prepaid Insurance 2,304 140 Land 14,070 141 Buildings...

Math - Calculus
Find the volume of the solid given by rotating the region bounded by the curves y=x^2, x=1, x=2, and y=0 around the y-axis a) Use the shell method b) Use the washer method. Be careful with the radius of the washer at different y.

chem
Sulfuric acid can dissolve aluminum metal according to the following reaction. 2Al(s)+3H2SO4(aq)?Al2(SO4)3(aq)+3H2(g) Suppose you wanted to dissolve an aluminum block with a mass of 26.8 g . 1.What minimum amount of H2SO4 in grams would you need? 2.How many grams of H2 gas ...

Math
Suppose you are 94 cm from a plane mirror. Part A What area of the mirror is used to reflect the rays entering one eye from a point on the tip of your nose if your pupil diameter is 4.8 mm ? Answer=_______m^2

Calc
So is it just an inflection point?

Calc
Suppose that f'(c)=0, f''(c)=0 and f'''(c)>0 . What, if anything, happens to the graph of the function f at x = c? Explain clearly and completely.

Math
Sorry my question was solely on 5c as that is the only one I don't understand.

calculus
Evaluate ?-3,3 x^z+2x+1dx using the definition of integration

Math
@Steve I think what they mean by behavior is if I see a pattern or trend with the iterations I was confused about that as well. Thank you for the example it made understanding it easier.

Math
I really need help on my last question if anyone can help me. Use the function g(X)=-X+2 with initial values of 4,2,and 1. What happens after many iterations with all three initial values? How do the results of all three iterations relate to each other?

Math
Okay Thanks

Math
Now I really need help with this one because every time I think it is one answer it ends up wrong. Identify the question that is NOT statistical. A) According to the rules, how many swimmers are on a team? B) What were the times of the top five swimmers in the competition? C...

Math
|-10| + |5| A) -15 B) -5 C) 5 D) 15 I think A is the answer.

Math
12?

Math
Equivalent Ratios x y 3 4 9 ? 18 24 What number is missing from the table of equivalent ratios? A) 10 B) 12 C) 15 D) 16 i think it is 16 or 12

Math
So the answer is $420 dollars?

Math
Ms. Sue I apologized of what happened. My brother is R2d2 and he forgot to change my name to his and, I had seen that he was a little frustrated that you said that he plagiarized someone else work.

Math
What are the like terms in this expression? 9a - 3b + 4ab A) 9a and -3b B) 9a and 4ab C) 9a, -3b, and 4ab D) no like terms I think it is d.

ss
Sorry that was my brother that did that. I was in the bathroom and he said he needed my computer real quick, so I said he can use it after get done,

ss
I needed access to post a the link. I did not have any, sssooo.

Writing
Answer is D?

Writing
Sorry there is "not lot if kids", there is lot of kids

Writing
What is the correct way to write this sentence? For the fourth-grade class hike, a lot if kids wore new hiking shoes, they were sturdy. Answer choices A For the fourth-grade class hike, there were a lot if kids they wore new hiking shoes that were sturdy. B For the fourth-...

Math(PLEASE HELP ME ASAP)
Hmm...ok I pretty sure the answer is what you did but to explain say '' the answer to this problem is .....'' I have a mean teacher and this works!!

biology 30
PR= V(present)- V(past) divided by V(past)x100 PR= (1.6x106)- 16 ------------- 16 PR= 153.6 ----- 16 PR= 9.5 x 100

Math
Question: An electron is released from rest in a uniform electric field and accelerates to the north at a rate of 249 m/s^2 . Part A: What is the magnitude of the electric field? Answer: E=_____ N/C Part B: What is the direction of the electric field? (Choose one) - to the ...

Math
[Note: I did the first half of this question by myself and got it correct. But I got the second half wrong] Question: How much work does the electric field do in moving a proton from a point with a potential of +160 V to a point where it is -45 V ? Express your answer in ...

Science (HELP ASAP)
1. Which of these is not an environmental effect of building dams A. Reduced fertility downstream<<< B. Weed growth downstream C. Increased water temperature D. Soil erosion upstream 2. Which of these is not an environmental effect of destroying wetlands A.smog B....

Science
When plants grow toward sunlight they____ A. Live longer B. Get more light C. Get smaller D. Die faster

4 th grade social studies
What were huge steam engines called?

FLVs
A man with a waist measurement of 32 inches and a BMI of 22 is considered:

Math
chandra has 3 liters of a 28% solution of sodium hydroxide in a container. What is the amount and concentration of sodium peroxide solution she must add to this in order to end up with 7 liters of 48% solution?

Math
4/7

Math
Leslie used more than a 1/2 cup but less than 1 whole cup of flour for recipe. what fraction of a cup Leslie used. Explain.

science
I have completed a back titration with an antacid tablet weighing 1.25 mg and 0.1494 M concentration of HCL (100 mL was added) and the concentration of NaOH is 0.1422 M. Determine the concentration of HCl remaining in the volumetric flask

Pre Cal 12
At what rate of interest would an investment have to be paid for an initial $900 to grow into $1400 in 12 years if the investment was compounded quarterly?

Trig
4x+y=?0, x?0 help finding Sin, Cos, Tan for this

Trig
can sec ? = negative 5

trig
sin, cos, and tan for ?5x + y =?0, x is less than or equal to 0

Trig
thank you!

Trig
Find the approximate value of cot ??, given that csc ?equals=3.5891420 and ? is in quadrant I.

Math
Shawn needs 190 liters of a solution that has a concentration of 18 g/ml for the manufacture of computer parts.  Shawn has an unlimited supply of a solution with a concentration of  37 g/ml.  Using the Formula  C1*V1=C2*V2 answer the following ...

algebra
102 is the product of Chau's height and 6

Math
11+6=19-

riddle
There is nothing old and new at the same time.

Math
In a survey, 175 consumers were asked about their buying preferences concerning a product that is sold in the market under three labels. The results were as follows. 15 buy only those sold under label A. 25 buy only those sold under label B. 28 buy only those sold under label ...

Science
Cutting down trees for -------------- can increase soil erosion. It fill in the blank. four grade science I do not know it.

4 th grade science
Cutting down trees for ---------- can increase soil erosion. can some one help me please with this. fill in the blank.

Science
4th grade Most processes change land slowly,but people can change the land

Science
4th Grade Most processes change land slowly, but people can change the land----------------- What the answer

Math
Something travels 25 meters in one minute, what does it travel in kilometers in one minute.

Math
You have the number 1,000,000,000 (one billion). What is one hundredth of that number?

Math
Which of the following expressions should be placed in each set of parentheses below in order to solve the equation by completing the square? x2+6x+___=15+____ a.3/2 b.3 c.6 d.9

Grammar
They love to go to the pool. Their favorite thing to do is swim laps. He likes to do the backstroke. He collects all the posters of famous swimmers in his bedroom. He likes to do the breaststroke. He has collected many autographed pictures of Olympic swimmers. Sometimes he ...

Grammar
Re-write the paragraphs adding pronouns such as "he," "they," etc. Tim and Paul love to go to the pool. Tim and Paul's favorite thing to do is swim laps. Tim likes to do the backstroke. Tim collects all the posters of famous swimmers in his bedroom. Tim...

American Government
Oops. XD. I meant LA.

American Government
These following questions are the only ones on the test I do not understand! Please help!!!!! :/ 6. Which is the BEST paraphrase of the first stanza of “The Olympic Swimmer”? A. Athletes from across the globe train to compete in the Olympics, but only one can win. B...

Physics
Problem: A person has a reasonable chance of surviving an automobile crash if the deceleration is no more than 30 "g's. Part A: Calculate the magnitude of the force on a 71-kg person accelerating at this rate. Answer=> F= 2.09x10^4 N Part B: What distance is ...

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