Sunday

December 11, 2016
Total # Posts: 48

**chemistry**

If 200. mg of fluorine-18 is shipped at 7:00 A.M., how many milligrams of the radioisotope are still active when the sample arrives at the radiology laboratory at 4:10 P.M.?

*November 12, 2016*

**Physics**

An 8kg ball traveling to the east at 10m per sec collides, with a 2kg ball traveling to the west with a velocity of 5 meters per sec. After the collision they move together.Determine the final velocity of the balls. Assume that there are no resistive forces.

*October 20, 2016*

**Math 7/8**

Im supposed to write an equation for a proportional relationship using variables

*October 11, 2016*

**Math 7/8**

Hi, could someone tell me how to write the equation for a proportional relationship? I'm not trying to cheat/not do the work myself, but I don't know how to write this problem as a proportional equation: There are 3.9 milligrams of calcium in each ounce of cooked ...

*October 11, 2016*

**Science**

Which of the following is true about chemical energy? A. Chemical energy can be stored more efficiently as glucose than it can be as ATP B. Chemical energy is stored when bonds in ATP are broken to form ADP C. Chemical energy is released when bonds in ADP are broken to form ...

*April 12, 2016*

**English**

First, identify the gerund in the sentence below. Then, replace the gerund with the infinitive of the same verb. Type the infinitive form of the verb in the space provided. Debbie loved watching the skaters glide around the rink.

*January 29, 2016*

**math**

mrs scott baked 4 1/2 dozen ginger cookies and 2/3 of sugar how many in all?

*December 2, 2015*

**physics**

A boat moving at 13 mi/hr is crossing a river in which the current flowing at 6 mi/hr.ln what direction should the boat head if it is to reach a point on other side of the river directly opposite its starting point. Please help me I really don't know what to do..

*November 30, 2015*

**algebra **

A manufacturer produces two types of bottled coffee drinks: cappuccinos and cafés au lait. Each bottle of cappuccino requires 6 ounces of coffee and 2 ounces of milk and earns a profit of $0.40. Each bottle of café au lait requires 4 ounces of coffee and 4 ounces...

*October 20, 2015*

**Physics**

C. 5.5 m/s

*May 11, 2015*

**Homeroom work**

ON a multiple choice question with 4 options, what are your chances of guessing correctly if you eliminate two answers? 10% 25% 33% 50% Is it 50%?

*March 22, 2015*

**math**

Joel made egg and tuna sandwiches in the ratio of 2:3. He then made 15 more tuna sandwiches and the ratio changed to 1:3. How many sandwiches did Joel make in all? 2/3=3/t; solving for t=4.5 when calculating to 15 tuna sandwiches, makes 10 egg sandwiches but this is still 2:3...

*November 17, 2014*

**Math Statistics**

Answer the following. Show your work to get credit. Exam scores are normally distributed with a mean of 81 and a standard deviation of 9. a) What is the minimum score one must have to be in the top 4% of the students taking the exam? b) What percentage of scores are below 90? ...

*October 13, 2014*

**statistics**

Answer the following. Show your work to get credit. Exam scores are normally distributed with a mean of 81 and a standard deviation of 9. a) What is the minimum score one must have to be in the top 4% of the students taking the exam? b) What percentage of scores are below 90? ...

*October 13, 2014*

**math**

A burger restaurant advertises that there are 96 possible ways to order your burger, assuming you have it on a white, wheat or sourdough bun. How many ways can you order a burger on a sourdough bun?

*September 8, 2013*

**math**

line l bisects XY at M and divides XY into two equal parts name a pair of congruent segments

*August 24, 2013*

**Math**

Is 45 less than 46in fractions

*December 19, 2012*

**Maths**

Mrs Lim is m years old. She gave birth to her son when she was 20 years old. What will their total age be in 12 years' time?

*November 12, 2012*

**Math**

I interpreted this answer to be 7,700 and 33. This is more of a riddle than a standard math problem. 7,000 is ten times 700 and 30 is ten times 3.

*October 1, 2012*

**physical geography**

From darrel hess physical geography manual 10th edition. How many plates on the map consist entirely of ocean floor or ocean floor islands?

*August 19, 2012*

**arithmetic**

Find the sum of the first 25 terms of an arithmetic sequence whose 7th term is −247 and whose 18th term is −49.

*May 26, 2012*

**Math**

Steve is building a slide for a new park. He wants the height of the slide to be 6 feet, and he wants the horizontal distance along the ground to measure 14 feet. After building the slide, Steve decides the slide needs a vertical safety support and wants to use a 3-foot piece ...

*March 30, 2012*

**Math**

Derek wants to determine the height of the top of the backboard on the basketball goal at the playground. He places a standard 12-inch ruler next to the goal post and measures the shadow of the ruler and the backboard. If the ruler has a shadow of 10 inches and the backboard ...

*March 30, 2012*

**physical science**

0m/s At its highest point, its not moving as it just changed direction from the positive direction (upwards) to the negative direction (downwards).

*January 23, 2012*

**Biology**

I need help in my biology lab... [Catalase Lab] 1.What effect did heat have on the activity of the enzyme? What effect did cold have? Room temperature? 2. What effect did lowering pH (making it acidic) have on the activity of the enzyme? What affect did raising the pH (making ...

*February 15, 2011*

**Chemistry**

What is the purpose of baking a chemical pie?

*February 14, 2011*

**english/check**

8)Banal 9)euphemism 10) Allusion

*September 1, 2010*

**english/check**

My answers 1.Altruistic 2. Mercenary 3. Assailed 4. Appease 5.syndrome 6. Taint 7.Arbitrary 8.allusion 9.Euphemism 10.Banal 1-2 _ people tend to place the public welfare above their own self-interest. In contrast,_ people will exploit anyone for a profit they will even sell ...

*September 1, 2010*

**english/CHECK**

My answers 1) Assail 2)Banal 3)mercenary 4)allusion 5)Taint 6) appease 7)Arbitrary 8)syndrome 9)altruistic 10)euphemism MY OLDER BROTHERS MARK HAS NO LUCK WITH WOMEN, HE GOES INTO ONE OF TWO STYLES OF CONVERSATION. THE FIRST IS TO (1) TAINT HER WITH A STEAM OF PERSONAL ...

*September 1, 2010*

**english**

sorry i did try to do it

*September 1, 2010*

**english**

which ones are wrong

*September 1, 2010*

**english**

My answers 1) Assail 2)Banal 3)mercenary 4)allusion 5)Taint 6) appease 7)Arbitrary 8)syndrome 9)altruistic 10)euphemism 1-2 _ people tend to place the public welfare above their own self-interest. In contrast,_ people will exploit anyone for a profit they will even sell ...

*September 1, 2010*

**english**

this check my answer Words: Deterrent, implication, inequity, infirmity, infringe, innovation, revitalize, sparse, subjective, succinct, 1- 2 When the candidate for mayor saw the sparse turnout for his speech, he knew he had to do something to revitalize his campaign. 3-4 ...

*August 30, 2010*

**english please check**

this are my Answer 1.Elicit 2.Engross 3.obsolete 4.Terminate 5.Tangible 6.Acclaim 7.Exploit 8.Escalate 9.Methodical 10. Adjacent

*August 30, 2010*

**english please check**

so my answer are wrong

*August 30, 2010*

**english please check**

Answer 1.Elicit 2.Engross 3.obsolete 4.Terminate 5.Tangible 6.Acclaim 7.Exploit 8.Escalate 9.Methodical 10. Adjacent 1-2 The gifted ice skater's routine _(e)d the audience . It was the epitome grace and power combined. At the end, a long, rapid spin _(e) d a burst of ...

*August 30, 2010*

**please check**

1) exploit 2) obsolete 3)elicited 4) acclaim 5) escalated 6)engrossed 7)adjacent 8)terminate 9)methodical 10)tangible 9) 10)

*August 30, 2010*

**please check**

As Alex sat down in the carnival tent, the lights dimmed. A spotlight revealed a short, heavy man holding a thick chain. He tugged the chain, and an old, muzzled bear appeared. The man, the animal's owner, announced that the bear's name was Sally. He said he would give...

*August 30, 2010*

**english**

words Curt, Demoralize, dilemma,inclination, irate, retort, sabotage, subsequent, wary,zeal if my carpets need cleaning or i want a new cellphone plan. I will do some comparison shopping first. I am not likely to buy anything suddenly just because a complete stranger has ...

*August 28, 2010*

**chemistry**

4Al + 3O2 ---> 2Al2O3 When 1.75 moles of Al are reacted, how many grams of Al2O3 are also reacted?

*July 24, 2010*

**chemistry**

4Al + 3O2 ---> 2Al2O3 How many moles of Al2O3 are produced when 4.33 moles of Al are reacted?

*July 24, 2010*

**Physics**

How much work does the electric field do in moving a -7.7 micro Coulomb charge from ground to a point whose potential is +55 V higher?

*July 12, 2010*

**Critical thinking**

How do I perfect an expository essay? Introduction, thesis, body and conclusion

*April 16, 2010*

**ecology&enviroment**

How would you suggest solutions to: the use of smarter technology to reduce global emission?

*October 7, 2008*

**Architecture**

Thought so. Thanks

*December 11, 2007*

**Humanity**

What are some good community service opportunities for someone interested in architecture as a career?

*December 10, 2007*

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