Sunday
January 25, 2015

Posts by Alexis


Total # Posts: 703

Pre-Calc
Word of mouth advertising can be an effective form of marketing , or it can be very harmful. Consider a new restaurant that serves 27 customers on its opening night. A) Of the 27 customers , 25 found the experience enjoyable and each told 3 friends over the next month. This ...
May 14, 2014

math
adult tickets to a play are $12 student tickets are only $8 if a theater sells 90 tiickets to a play for a total of $980, how many of each kind of ticket did the theater sell?
May 12, 2014

Chemistry
Using a table of standard reduction potentials, determine the best answer to the following questions. a) Which of the following reagents would oxidize Cr to Cr3 , but not Ag to Ag ? Choices: Ca^2+, Br2, Co^2+, Ca, Br^-, or Co. b) Which of the following reagents would oxidize I...
May 4, 2014

chemistry
C5H12 because the boiling point falls between Butane (C4H10) and Hexane's (C6H14) boiling points. The only compound that falls between the two is pentane
April 28, 2014

Chemistry
Hydrogen peroxide can act as either an oxidizing agent or a reducing agent, depending on the species present in solution. Write balanced half-reaction equations for each of the following: (a) H2O2(aq) acting as an oxidizing agent in an acidic solution. Write the balanced half-...
April 28, 2014

Chemistry
use the data from this table of thermodynamic properties to calculate the maximum amount of work that can be obtained from the combustion of 1.00 moles of ethane, CH3CH3(g), at 25 °C and standard conditions. on the chart is said ethane(C2H6) is -84.0. In the hint it said ...
April 28, 2014

Chemistry
At 25 °C, the equilibrium partial pressures for the following reaction were found to be PA = 4.10 bar, PB = 5.60 bar, PC = 1.20 bar, and PD = 9.70 bar. 2A(g)+2B(g)-->C(g)+ 3D(g) What is the standard change in Gibbs free energy of this reaction at 25 °C. I don't ...
April 25, 2014

6th grade Lang Arts
So... In sentence 1, the adjective clause is needed to let us know what stadium we're talking about. So we don't need to use a comma. In sentence 2, the adjective clause is not needed because we already mentioned my father as the subject. So, a comma can be used to set...
April 21, 2014

6th grade Lang Arts
Can you explain why the comma used in sentence 1 is not correct as compared to the comma used in sentence 2? (from homework) 1. The stadium, that my favorite team plays in, seats over 81,000 people. 2. My father, who is an excellent reader, finished a 500 page book in one day!
April 21, 2014

Chemistry
Calculate ΔG° for the following reaction at 298 K.? A+B --> 2D ΔH° = 775.0 kJ ΔS°=296.0 J/K C --> D ΔH° = 446.0 kJ ΔS°=-218.0 J/K A+B --> 2C ΔG° = ? kJ I know I am suppose to reverse the (C --> D) and add a ...
April 20, 2014

Chemistry
Thanks DrBob222!
April 20, 2014

Chemistry
If delta H°rxn and delta S°rxn are both positive values, what drives the spontaneous reaction and in what direction at standard conditions? The spontaneous reaction is a)enthalpy driven to the left. b)entropy driven to the right. c)entropy driven to the left. d)...
April 20, 2014

Chemistry
Thank you. I understand it a lot better. And as for equation, I figure that I figure that I left out the kPa. so that for the first process, there is a decrease in pressure so more movement for the molecules therefore S increases, right?
April 20, 2014

Chemistry
Predict how the entropy of the substance is affected in the following processes: a) O2 (g,200 kPa, 300k) --> O2 (g, 100, 300k) b)Br2 (l, 1 bar, 25 degree C) --> Br2 (g, 1 bar, 25 degree C) C)Fe (s, 1 bar, 250 degree C)--> Fe(s, 1 bar, 25 degree C) will entropy either ...
April 20, 2014

6th grade Lang Arts
Can you check my homework, please? Identify each pronoun as personal, reflexive, demonstrative, indefinite or interogative. 1. These are Elberta peaches, which are very popular in the United States. Ans: these = indefinite 2. Nobody really knows where the fruit came from ...
April 16, 2014

Chemistry
A solution of I2 was standardized with ascorbic acid. Using a 0.0500 g sample of the acid, 26.50 mL of I2 were required to reach the starch end point.
April 14, 2014

Chemistry
A 0.170-mole quantity of CoCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Co2 ions at equilibrium? Assume the formation constant (Kf) of Co(NH3)62 is 5.0× 1031 M–6. I don't really know how to start. At first I thought about setting ...
April 14, 2014

Algebra II
The diagram shows the plan made by a landscape artist for a homeowner's 16-meter by a 16-meter backyard . The homeowner has requested that rosebushes, fountain, and garden bench be placed so that they are no more that 14 meters apart. A). Has the landscape artist met the ...
April 1, 2014

Algebra 11
The diagram shows the plan made by a landscape artist for a homeowner's 16-meter by a 16-meter backyard . The homeowner has requested that rosebushes, fountain, and garden bench be placed so that they are no more that 14 meters apart. A). Has the landscape artist met the ...
April 1, 2014

Algebra II
One method of irrigating crops is called the center picot system. This system rotates a sprinkler pipe from the center of the field to be irrigated. Suppose a farmer places one of these units at the center of a square plot of land 2500 feet on each side. With the center of ...
April 1, 2014

chemistry
3.4 * 10^3
March 27, 2014

6th grade Lang Arts
thanks!
March 26, 2014

6th grade Lang Arts
Can you check my answers? Name type of sentences 1. I believe my students are ready to take this test because everybody has worked hard to learn the material. Ans:complex independent - I believe my students are ready to take this test dependent - because everybody has worked ...
March 26, 2014

Spanish 2
Re-write the following sentences in correct Spanish and use direct and indirect object pronouns. 1.) We need to wash the car for you. 2.) We used to wash the car. 3.) Mom makes pizza. 4.) Mom makes pizza for me. 5.) I want to see a movie.(una película) 6.) Mom wants to ...
March 25, 2014

6th grade Lang
thank you for explaining :)
March 18, 2014

6th grade Lang
14. I can accept the rain and wind since I know that these two elements are important to water the earth and then to dry it back out again. ans: complex I can accept the rain and wind = independent clause since I know that these two elements are important to water the earth = ...
March 18, 2014

6th grade Lang
Can you recheck these? I don't understand. 10. I enjoy it because the temperature is pleasant, and everything is green and pretty. ans: cd (compound) 11. I also love to hear the birds singing in the trees and to watch them building their nests. ans: SS (simple) 13. In the ...
March 18, 2014

6th grade - Lang Arts
No, i don't understand. 10. I enjoy it because the temperature is pleasant, and everything is green and pretty. ans: cd (compound) 11. I also love to hear the birds singing in the trees and to watch them building their nests. ans: ss (simple sentence)
March 17, 2014

6th grade - Lang Arts
Can you check the following? Find the verb phrase 1. Will you buy me a drink? ans: will buy 2. Sam is not going to the dance. ans: is going 3. Al should have mowed the lawn today. ans: should have mowed 4. Theresa will be playing her clarinet at the concert tonight. ans: will ...
March 17, 2014

Algebra
Daniel has a piece of wire that is a fifth of a yard long. He cuts the wire into three equal pieces. What fraction of a yard is each piece?
March 17, 2014

Algebra II
Simplify 4-7i/2+5i
March 15, 2014

Pre-Calculus
Express the complex number in polar form. 5-12i
March 15, 2014

Pre-Calculus
Find this quotient. Express the result in rectangular form. 9(cos3π/2 + isin3π/2) ÷ 3(cosπ/4 + isinπ/4)
March 15, 2014

Pre-Calculus
Express the number in rectangular form. 3(cosπ/3+isinπ/3)
March 15, 2014

Pre Calculus
Find each product or quotient. Express the result in rectangular form. 2(cosπ/6+isinπ/6) X 4(cos2π/3 +i2π/3)
March 15, 2014

Calculus
Find four other forms of the point (4, 105°) Two of the four must include a negative r value.
March 14, 2014

Pre-Calculus
Write the polar equation in rectangular form... r=5sintheta
March 13, 2014

Pre-Calculus
Find the polar coordinates of each point with the given rectangular coordinates. Use degrees. (-4,-3)
March 13, 2014

Pre Calculus
Write the rectangular equation in polar form... x=3
March 13, 2014

Pre-Calculus
Find the rectangular coordinates of the point with the given polar coordinates. (3, 150°)
March 13, 2014

6th grade math
I have to determine which method - mean, median, or mode - would be best for answering the following question: Find the average number of athletes for the sample of 7 countries listed by deciding which measure of center is the best represntation of the number of athletes from ...
March 12, 2014

6th grade math - statistics
Can you explain why Q1 = 3.5 and Q3 is 9 out of this dataset 0, 1, 3, 4, 6, 7, 7, 7, 8, 10, 12, 12. My answers were: Assuming median would be 7 (using numbers in positions 6 and 7 where 7+7/2 = 7) Q1 dataset would be 0,1,3,4,6; Q1 = 3 Q2 dataset would be 7,8,10,12,12; Q3= 10 ...
March 10, 2014

Pre-Calculus
Find vector a<3,2,-4> X vector b<-6, 9,0>
March 3, 2014

Pre-Calculus
Phil Dawson is a professional place kicker for the Cleveland Browns. On average, he kicks the ball at a 41 degree angle and with an initial speed of 70 feet per second. For future reference, goal posts are 10 feet high in the NFL. a) Write parametric equations to model Dawson...
March 3, 2014

Pre-Calculus
Write an equation in slope-intercept form of the line with the given parametric equations. x=t+6 y=2t-4
March 3, 2014

Pre-Calculus
Write Parametric equations of -3x+1/2y=2
March 3, 2014

Pre-Calculus
A 15N force acting at 15 degrees north of east and a 18N force acting at 79 degrees north of west act concurrently on an object. What is the magnitude and direction of a third force that produces equilibrium on the object? Show sketch and work. ------ x-component:: 15*cos(15 ...
March 3, 2014

Math
Jake serves a volleyball with an initial velocity of 32 feet per second from 4.5 feet above the ground at an angle 0f 35 degrees. a) Write parametric equations to model the situation. h(t) = -16t^2 + 32t + 4.5 --------------------------------------- b) How long will the ball ...
March 3, 2014

Pre-Calculus
Phil Dawson is a professional place kicker for the Cleveland Browns. On average, he kicks the ball at a 41 degree angle with an initial speed of 70 feet per second. For future reference, goal posts are 10 feet high in the NFL. a) Write parametric equations to model Dawson'...
February 28, 2014

Pre-Calculus
Write Parametric equations of -3x+1/2y=2
February 28, 2014

Pre-Calculus
Jake serves a volleyball with an initial velocity of 32 feet per second from 4.5 feet above the ground at an angle 0f 35 degrees. a) Write parametric equations to model the situation. b) How far will the ball travel( if it hits the ground)show work
February 28, 2014

Algebra
For a given two-digit number, the second digit is 2 more than 5 times the first digit. Also, 5 times the first digit is 3 more than the second digit. Find the two-digit number,
February 27, 2014

Math
dont know
February 17, 2014

arithmetic sequences
a new car cost $13,000 and is depreciating by $900 each year. how much will the car cost be worth after 4 years?
January 9, 2014

arithmetic sequences
a tube containing 3 ounces of toothpaste is being used at at rate of 0.15 ounces per day. how much toothpaste will be in the tube after one week?
January 9, 2014

arithmetic sequences
jessie is playing an arcade game that costs 50cents for the first game and 25cents to continue if she loses. how much will she spend on the game if she continues 9 times?
January 9, 2014

algebra
a new car costs $13,000 and is depreciating by $900 each year..how much will the car be worth after 4 years?
January 9, 2014

EARTH SCIENCE
is not d
January 7, 2014

Algebra 2 9th/11th grade math
how do i do interval notation
December 19, 2013

Vocbulary
Yw
December 15, 2013

Vocbulary
Forming an unbroken whole; without interruption.
December 15, 2013

Statistics
You are so welcome
December 15, 2013

Statistics
Yes
December 15, 2013

Statistics
The null hypothesis will be that all population means are equal, the alternative hypothesis is that at least one mean is different.
December 15, 2013

Math check
Ya it would be
December 15, 2013

Math check
That is correct
December 15, 2013

English
Sorry that was my sister. She is 10. She typed what I wanted her to while i did something
December 15, 2013

English
Okay.
December 15, 2013

English
I wrote the 1st paragraph and then got stuck. Thank you for the help but I could ask my mom for help
December 15, 2013

English
I have to come up with a 2 page paper about Sandy Hook including : names of all victims, opinion, and what we could do to support Sandy Hook and the only part i am stuck on is that I don't know what to write for support! And my opinion!
December 15, 2013

English
Donate money to them???? I don't know this is WAY too hard. I have been working on this all weekend and it is due tomorrow
December 15, 2013

English
I want to say like how we could help support Sandy Hook but at the same time I want to include many of the names.
December 15, 2013

English
I need more info I am having so much trouble. I am only in 7th grade
December 15, 2013

English
What is a PERFECT essay about Sandy Hook Elementary School?
December 15, 2013

6th grade math
Ok.. for #4, i was trying to show that i subtracted 3 from both sides; #7, I was trying to show that I multiplied both sides by 3; and #8 was trying to show that I added 6 to both sides. I agree that I like how you showed it in #8. Thanks Reiny!
December 11, 2013

6th grade math
Can you check these inequalities? 1. Chancellor is saving $15 each week for at least n weeks to buy a skateboard that cost $150. Write an inequality to represent this real life situation. Ans: 15n >= 150 2. Write an inequality to represent the possible speed allowed fi the ...
December 11, 2013

6th grade grammar
whew..thanks! I need to review more.
December 11, 2013

6th grade grammar
hmm.. 1. Celina is coming to my house after dinner. action verb = coming verb phrase = is coming 2. The weather was beautiful this past weekend. - this is linking verb only (was)? 4. He has been sick all this week. verb phrase = has been 5. We were not happy about our team'...
December 11, 2013

6th grade grammar
Can you check these sentences? Identify whether each sentence includes an action verb, linking verb, or verb phrase. 1. Celina is coming to my house after dinner. Linking = is verb phrase = is coming 2. The weather was beautiful this past weekend. Linking = was verb phrase = ...
December 11, 2013

Math
9,876,543,012
December 9, 2013

Physical Science
Please HELP !!!!
December 9, 2013

Physics
what is the accuracy percent of 11 divided by 267 times 100?
December 9, 2013

Trig
86.16 i believe
December 9, 2013

math 5th grade
15
December 9, 2013

math 5th grade
Mary baked a dozen M&M cookies. There were 45 M&M's in the bag. Each cookie had a minimum of 3 M&M's. What are all the different possibilities?
December 9, 2013

Help me pls geometry
UVW~XYZ, UV= 15, UW=25, and XZ=60. If the perimeter of XYZ is 168, what is the perimeter of UVW?
December 9, 2013

Psychology
The answer is C. Albert Ellis depicts the relationship between irrational belief and negative emotions through use of the A-B-C model.
December 9, 2013

help me pls geometry
Which tirangles must be similar 1. Two right triangles with a congruent acute angle 2. Two obtuse angles 3 Two isosceles triangles with congruent bases 4. Two scalene triangles with a congruent angle
December 9, 2013

help me pls geometry
If ab=8, BC=14, and df=33 what is ef?
December 9, 2013

6th grade math
Oh.. thanks!
December 5, 2013

6th grade math
Can you check the following problems related to inequalities? 1) Sue has more than 5 cookies. Ans: x > 5 2) The temperature was less than 88 degrees last night. Ans: x < 88 3) I made $75 or more dollars babysitting. Ans: x >= 75? 4) I need to make a 70 or more on my ...
December 5, 2013

math
Two common names for streets are First Street and Main Street, with 12485 streets bearing one of these names. There are 2105 more streets named First Street than Main Street. How many streets bear each name?
December 4, 2013

Math
A department store sold 63 shirts one day. All short-sleeved shirts cost $15.00 each and all long-sleeved shirts cost $22.00 each. Total receipts for the day were $1,134.00 . How many of each kind of shirt were sold?
December 4, 2013

6th grade grammar
Thanks Steve and Ms. Sue!
December 3, 2013

6th grade grammar
ok.. i think i got it. thanks!
December 3, 2013

6th grade grammar
Can you explain linking verbs? I'm getting confused. (To decide, I used 'is' or 'was' to replace the verb). These are the ones I missed. 1. Paul's exhibit remained on display for an entire month. By replacing with 'was', the sentence still makes...
December 3, 2013

6th grade grammar
Thanks! think i'm understanding it.
December 2, 2013

6th grade grammar
Thanks! Looking at linking vs action verb, just wondering if i got it switched: 3. This pie tastes good with whip cream. Subject = pie action verb = tastes I tried substituting with 'is' and the sentence makes sense. Is 'tastes' a linking verb in this sentence?
December 2, 2013

6th grade grammar
Can you check the following sentences, please? Identify the subject and verb (action or linking). 1. Jim looked through his closet for his favorite shirt. Subject = Jim action verb = looked 2. A ghost appeared in the doorway. Subject = ghost action verb = appeared 3. This pie ...
December 2, 2013

Algebra
i need help
November 26, 2013

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