Monday
July 28, 2014

Posts by Chris


Total # Posts: 2,146

Statistics
Choose the right answers, and provide reasons and calculation To study the effect of change in price of a DVD ($) on the total profit (000, dollars), the analyst of an electronic firm randomly selected 13 retail sales stores. She used the data on total profit (y) and DVD price...

Statistics
Choose the right answer, and provide the reasons and calculations. A palmist claims that he can accurately predict the age at death (y) of an individual from the length (centimeters) of age line (x) on the right hand of the individual. A random sample of 20 dead individuals fr...

Statistics
Choose the right answer, and provide the reasons and calculations. A palmist claims that he can accurately predict the age at death (y) of an individual from the length (centimeters) of age line (x) on the right hand of the individual. A random sample of 20 dead individuals fr...

Business Communications
Which of the following sentences uses passive voice appropriately? A:"Your order was shipped yesterday and should arrive Friday." B:"The shipping clerk sent your order yesterday and it should arrive by Friday." C:"The decision was made after much debat...

Chemistry
.445 L

Math
Use the fact that (125)^1/3 = 5 and the tangent line approximation to estimate (123)^1/3

Accounting
FIN 200 Checkpoint: break even analysis

pre alg
-8/75

Math 98 pre algebra
thank you

Math 98 pre algebra
14 and 2/3 times 2 and 2/11 divided by 3 and 3/8. i got =234 and 1/4 am I correct and if not what is the answer?

math
40 is what percent of 800

math
8.02-3.696

Geometry
cos x°=15/17 tan 76°=13/x

Physics
Two point charges, 5.0 µC and -2.0 µC, are placed 5.0 cm apart on the x axis, such that the -2.0 µC charge is at x = 0 and the 5.0 µC charge is at x = 5.0 cm. At what point(s) along the x axis is the electric field zero? I'm not exactly sure how i s...

Math
a circular track runs around a park. there is a sidewalk that connects two points on the track that runs through the center of the park. the sidewalk is 100 ft. long. How long is the track to the nearest half foot?

Math
I see it now,because a diagonal divides a parallelogram into two congruent triangles! Thank you!!

Math
So one side of the rhombus is equal to seven? I'm still confused as to how you got your answer...

Math
In rhombus DEFG, if m<DEF=60, and the shorter diagonal DF has a length of 7, find the length of the side of a rhombus.

Geometry
In rhombus PQSR, PQ=y+8 and QS = 4y-7. Find PQ. Also... In rectangle ABCD,AB=x+15, BC=x-8, and CD=2x+3. Find: 1)x. 2)AB 3)BC Thanks!

chemistry
When one pound of gasoline (made up of compounds of hydrogen and carbon) is burned in an automobile approximately 3 pounds of carbon dioxide, CO2, is given off. Carbon dioxide is one of the gases contributing to global warming. What information from this experiment helps expla...

Math
5 didnt

Chemistry
Can someone explain hybrid structures and resonance structures.

French
I really do not know how to unscramble these two french olympic winter game words. They are: NDIIMOCORBQUENE and UPSOCEETRTI. Could you please help me?

math
in a balloon race,the sum of the distances covered by two of the balloons was 1,025 miles.if the distance covered by the first balloon was 50 miles more than 1/2 of that covered by the second balloon,how far did each travel?

math
at the town waterworks,2 large pumps and 4 smaller ones delivered 4,800 gallons of water a minute.each of the large pumps delivered 4 times as much water as each small pump.how many gallons per minute did each pump deliver?

math
a man paid $8.50 for a small pump and 8 feet of tubing.he paid 12 times as much for the pump as for each foot of tubing.how much did the pump cost? the tubing?

Physics
An electron moving to the right at 3.0% the speed of light enters a uniform electric field parallel to its direction of motion. If the electron is to be brought to rest in the space of 4.5 cm, determine the following. What direction is required for the electric field? What is ...

5th grade science
How might the history of the US be different if the first European settlements had occurred on the west coast instead of the east coast?

Chemistry
in this experiment you are you will begin by preparing a dilute soultion of sodium hydroxide by taking 50 ml of 3 M NaOh stock solution and diluting it with 250 ml of water. i found that and the answer was .5 but how do i do this b. calculate the number of moles and grams of o...

Global History
Thanks, Ms. Sue!

Global History
So, in this way, the British became imperialistic over Ireland? The British supressed Ireland's rebellions only to keep making the Irish export wheat and Barley?

Global History
How does the English government's attitude toward the Irish during the Irish famine in the late 1840's reflect the motivations for imperialism?

chemistry
I believe it comes out to CaSO4 x 2H20 20.9% 2:1 ratio I think haha

Chemistry
oh and thank you guys

Chemistry
nvm its -545. not quite sure why its exothermic

Chemistry
i get 545 but i'm not getting the right answer

Chemistry
btw, i meant to write 11.9C not 119. i work it like this: 200ml(1g/ml)(4.184J/C)(11.9C) then divide by (40.078g/mol/.732g) i get the wrong answer though

Chemistry
What is the molar heat of reaction? When 0.732 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 119C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay atten...

chemistry
Looking up the specifications of an oil online, the spec sheet indicates that the specific gravity of this oil is .93. Does this mean that the oil weights .93 grams / 1 cubic centimeter of oil? Thanks

11th grade
Why is square root of x squared = absolute x? Is it because absolute x = -x and x?

geography
how come 10% of the land could be used to grow crops on ancient china

Physics 2
A cyllindrical copper cable carries a current of 1200 A. There is a potential difference of 1.6×10−2 V between two points on the cable that are 0.24 m apart. What is the radius of the cable?

Physics 2
The heating element of a clothes dryer has a resistance of 11 and is connnected to a 240-V electrical outlet. What is the current in the heating element? If the clothes dryer is run for 5 minutes, how much energy has been delivered to its heating element?

Maths
Width= 12cm because Length= 17cm 12+12+17+17= 58

math
suppose c is a subset of d and d is a subset of c. if n(c) = 5, find n (d).

English 101
Arriving at Lake Powell in a thunderstorms the campers found it safer to remain in their cars that setting up their tents.

att DR BOB
let me rephrase my question. A Mole of ethyl alcohol weights 46g.How many grams of ethyl alcohol are needed to produce 1 L of a 2 milimolar solution? I know the answer is 0.092g but I dont know how to derive it

chemistry
how many grams of ethyl alcohol are needed to produce 1 L of a 2 mM solution if 1 mole =46g of ethyl alcohol. how do you calculate?

Calculus II
How does one obtain cos2x = cos^2(x) - sin^2(x) by differentiating the identity sin2x = 2sinxcosx

Computer Applications-87
how is word used to create the componenet of a research paper

Algebra
3(a+2)=4a

science
what happens to the population of butterflies after a predator comes through? answer must include the words, gene and natural selection

science
what happens to butterflies after a predator come through include the word gene and natural selection

math
Suppose you have a friend named Ed. He and his four friends are having ice cream. There are only three flavors available at the ice cream store they are visiting: chocolate, vanilla, and strawberry. One of Ed’s friends, Stacey, eats chocolate exclusively. How many differe...

math
what is the ratio of 1/2 to 1/4?

math
whats the ratio of 6 to 9?

math
the ratio of the consumption of gas to new york one year to that in chicago was 7/4.if 120 billion cubic feet wereconsumed in chicago,what was the consumption in new york?

math
the ratio of the consumption of gas to new york one year to that in chicago was 7 if 120 billion cubic feet were - 4 . consumed in chicago,what was the consumption in new york?

MATH
two boys weigh 120 pounds.what is the ratio of the weight of the first to that of the second?

math
find the ratio of 4 2 2 3 - x to - x of - ab 5 5 , 4 to 1 1 1 - ac of 2- to 7- of .7m to .8m, of 2 , 2 2, 2 2 2 ( x -y ) to (x-y) .

math
what is the ratio of 1 1 of 1 - to - - to 2 4?, 2 1 2 3 - - to- 3?,of 3 4?

math
what is the ratio of 1 1 of 1 - to - - to 2 4?, 2 1 2 3 - - to- 3?,of 3 4?

math
express it its lowest terms the ratio of 6 to 9:of 12x to 16y:of am to bm:of 20ab to 10bc: of m+n to 2 2 m -n.

math
a heavy freight train made a trip of 360 miles, running part of the distance at 54 miles an hour and the rest at 48 miles an hour.if the entire trip took 7 hours,find the distance traveled at each rate.

Chemistry
Idk my teacher gave me this question for homework and i had no idea how to do this. But this has to do with molarity and stoichiometrty if that helps

Chemistry
50 mL of 1M silver Nitrate is combined with 25 mL of 2 M potassium Chloride. What is the concentration of a resulting solution

math
They multiply by dividing

ethics
the difference between psychological and ethical egoism?

math
a group of friends shared the expenses of an automobile trip,which cost $40.if there had been 3 more people in the group.each would have $3 less.how many people were there in the group and how much did each pay?

economics
are there hidden environmental and social costs

math
find the worlds production of nickel in a year when russia and new caledonia together produced 1/3 of it,canada 1/6 of it,and australia 1/9 of it, and the rest of the world 420,000 tons

math
find the worlds production of nickel in a year when russia and new caledonia together produced 1/3 of it,canada 1/6 of it,and australia 1/9 of it, and the rest of the world 420,000 tons.

math
find the worlds production of nickel in a year when russia and new caledonia together produced 1/3 of it,canada 1/6 of it,and australia 1/9 of it, and the rest of the world 420,000 tons.

e
This is true, but how does picking out something for someone become moral vs immoral? if they ask me to pick it out for them and i pick something that makes them look bad am i being immoral because i knew that they wouldn't look good? Are they being immoral for asking me t...

ethics
i believe that depending on the person that these could be either moral or immoral.

ethics
Thanks for the info. I still can't separate the two. Any examples you could give? If someone asked me to pick out something would that be a moral issue or immoral issue? I'm so confused

ethics
what is the difference between a moral and immmoral issue?

Science
l'm sorry l have another question about watersheds >< What can we do to protect the water where you live?

Science
What are watersheds and why should they be protected? What could you do to protect watersheds? I'm supposed to find sthe answer to this, but my textbook doesn't say anything about why it's useful to humans... the only thing that it tells me is that it's an area...

math
In a particular house,the bedrooms take up 1/3 of the total floor area, and the living room takes up another 1/5.If the rest of the house has an area of 700 square feet,find the area of the living room and area devoted to bedrooms.

algebra
In a particular house,the bedrooms take up 1/3 of the total floor area, and the living room takes up another 1/5.If the rest of the house has an area of 700 square feet,find the area of the living room and area devoted to bedrooms.

5th grade
use the following set of numbers to find different landmarks : 42,16,37,42,16,42,51

8th grade
What happens when the kinf of beasts runs in front of a train

Algebra
Solve 2xy + 4

english
Marie found it hard to choose between the seventeen books on the life of Emily Dickinson. "If there were less books it would be an easier choice," she said.

accounting ethics
n what circumstances would each approach to stakeholder impact analysis (moral standards, five-question, and Pastin’s approach) be most useful? Summarize the approaches and describe when each would be most or least useful.

OCHEM
Pg 201 of techniques under the subtitle "Poor Separation of a Mixture" should answer #2 for you.

Advanced Math
thanks for you help and especially explanation

Advanced Math
log10x + log10(x+1)=1 In other words log base 10 + log base 10(x+1)=1 I need to show it algebraically not using calculator Thanks a lot !

Math
The area of a room is 200,000 cm2. How many square meters is that

science
give an example of how metallic bonding allows metals to conduct electric current.

LA new
identify partciple and word participle that it modifies 1)TAKEN for Granted by most of us, paper is an seesantial part of our lives 2)The PAPER Used today has developed over many centuries 8)Modern paper, however,started with a chineses INVENTOR Serving emperor he di 9)The inv...

LA cont
underline infinitive and write how its used

LA cont
5)The class approved the decision to offer tutoring services to YOUNGER children:adverb 6)Kara's plan is to take a trip to AUSTRALIA next year:adverb

lA cont.
identify Gerund and gerund phrase write how its used:S for subject PN for predicate nomitave DO for direct object or OP object of a prepsition CHEERING THE TEAM gave me a sore thorat: S Joanna's mother enjoys PRESERVING FRUITS AND VEGETABLES:DO We stopped him from TELLING ...

LA
identify infinitves and write how it is used which are noun adjective or adverb 1)To UNDERSTAND the difference between a democracy and a republic is important :noun 2)The captain struggled to REGAIN control of the foundering ship:adverb 3)Megellan's ship was the first to C...

Earth Science
According to Kepler's law of harmonies, which planet takes the longest to orbit the Sun?

Geography
The waters surrounding Japan and the nearby ocean currents help to make Japan's climate mostly what?

Math
Find the x and y intercepts of a line that is perpendicular to the line y = -9/8x + 1 and passes through the point (18, -8).

english
what is the difference between an irregular verb and a past pariciple?

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