# Posts by Rose

Total # Posts: 1,351

Basic math for science
A sportswear manufacture determines that the marginal cost of producing x worm-up suits is given in dollars by 20-0.015x.if the cost of producing one suits is \$25,find the cost function and the cost of producing 50 suits and 100 suits

Religion
Thank you

Religion
The question im asked is "What is it that im a slave to? What is holding you back, what you need liberation from. I wanna discuss on how i am a slave to my emotions. is it possible that your emotions can hold you back?

Chemistry
Complete the following equations: A) methyl butanone + oxygen ---> B) a pentagon + F2 ----->

Chemistry
What would the reaction of these two look like (reactants and products) A) hexanal is reduced B) Butanoic acid is neutralized by potassium hydroxide

Chemistry
Complete the following equations: 1. Benzene + hydrogen fluoride ----> 2. Propanoic acid + ethanol ----> 3. 3-pentanol --->(oxidized)

Chemistry
Complete the following equations. Include names of all reactants and products A) CH3CH2CHCH - CH2+H2O --> | CH3 B) CH3CHC=CCH3 + H2 ---> | CH3

physics
A wire 20cm long carry current of 2A is placed perpendicular to a uniform magnetic field. If a force of 0.8N acts on it. Calculate the value of the magnetic field intensity B

Math
I don't think your question has anything to do with math... Post a relevant question to the topic you need help with.

Math
Is this an example of two-variable data? Data Management Marks: 74,81,66,53,92,45,80 Grade 12 Average: 77,87,68,67,85,55,76 i think it is..

Science
If you are in a spacecraft that has been launched into space, your weight would A) Increase because gravitational force is increasing. B) Increase because gravitational force is decreasing. C) Decrease because gravitational force is decreasing. D) Decrease because ...

English
I think the answer is either to be entertained or to gain understanding but i think the answer that makes the most since would be to gain understanding.

life orientation
Evaluate the physical, social and economic consequences of this crime to the offender. How did this corruption and fraud impact negatively in the country example service delivery,tax,expenses of trial?

Chemistry
What are the molecular formula for: 3-methylpentanoic acid Cis-2-propyl-2-hexane N-methylpropanamine N-methylhexan-3-amine

Math
How can i find misleading graphs on the news online??

math
write an expression that represents how much you would make per hour on holidays if you earned time and a half (40 hours for 50 weeks)

A general reaction written as 1A + 2B --> C + 2D is studied and yields the following data: Expt (A). (B) initial (C)/t 1. 0.150. 0.150. 8.00 x10^-3 2. 0.150. 0.300. 1.60 x10^-2 3. 0.300. 0.150. 8.00 x10^-3 What is the order of the reaction with respect to B? What is the ...

Chemistry
The average rate of disappearance of ozone in the reaction 2O3(g) ---> 3O2 (g) is found to be 8.12 x 10^-3 molecules over 15 seconds. What is the rate of appearance of O2 during this interval

I don't understand?

My values: 0.012 0.008 0.005 0.0035 0.0025 0.002 0.0018 0.0017 For a graph.. What scale on the x axis should I go by to plot these values... The time is the y axis which I know the scale... But I can't think of a scale to go by for these values

Chemistry
Given info: Time(s). (ClO) mol/L 0.0. 0.012 4.0. 0.008 8.0. 0.005 12.0. 0.0035 16.0. 0.0025 20.0. 0.002 24.0. 0.0018 28.0. 0.0017 Calculate the average rate of the overall reaction

STATS
A survey found that 36% of students still enjoy doing research in a library. A random sample of 326 students showed that 105 of them will continue to go to library. If the critical value is -1.65 what is your decision.

Chemistry
How do I answer this question? The average rate of disappearance of ozone in the reaction 2O3 --> 3O2 is found to be 8.12 x 10^-3 molecules over 15 seconds. What is the rate of appearance of O2 during this interval?

Chemistry
Two electron configuration: Mg(Ne)3s^2 Zn(Ar)4s^2 3d^10 Using the configurations, explain the difference in relative reactivity of the 2 metals ( which are Mg and Zn)

Chemistry
Two electron configuration: Mg(Ne)3s^2 Zn(Ar)4s^2 3d^10 Using the configurations, explain the difference in relative reactivity of the 2 metals ( which are Mg and Zn)

Chemistry
Two electron configuration: Mg(Ne)3s^2 Zn(Ar)4s^2 3d^10 Using the configurations, explain the difference in relative reactivity of the 2 metals ( which are Mg and Zn)

Social Studies
@bunny64 I'm on here in 2017 so I know it's much too late to offer help. But I do hope your situation was resolved and you're doing much better. <3 Screw @Mrs.Sue and many others in this corrupt educational system who put grades over mental health and could care...

Chemistry
Use the collision theory to explain the increase in rates of the other reactions

Chemistry
Write balanced reaction for the following metal acid reaction A) Mg and HCI B) Zn and HCI

English
Writing a haiku about a cellphone

math
My values are: 0.075 0.025 0.1 0.075 0.1 0.125 0.05 0.125 0.025 0.15 0.125 0.025 What would be an appropriate scale to go by on a bar graph.@bobpursely suggested 40:1 what does this mean???

Math
My values are: 0.075 0.025 0.1 0.075 0.1 0.125 0.05 0.125 0.025 0.15 0.125 0.025 What would be an appropriate scale to go by on a bar graph.

Chemistry
How do I calculate the heat released by 1 mole MgO Given: 0.5 g of MgO Heat gained by acid is 1337.6 kJ I calculated the moles for MgO which I got 0.0125 I'm not sure if I'm on the right track..

Chem
How do I calculate the heat released by 1 mole MgO Given: 0.5 g of MgO Heat gained by acid is 1337.6 kJ I calculated the moles for MgO which I got 0.0125 I'm not sure if I'm on the right track...

The reaction through which carbon changes from graphite to diamond form is represented by the equation C(graphite) ---> C(diamond) delta H: ? Using the reactions below, determine the amount of heat absorbed in the change of one mole of graphite to one mole of diamond C(...

The reaction through which carbon changes from graphite to diamond form is represented by the equation C(graphite) ---> C(diamond) delta H: ? Using the reactions below, determine the amount of heat absorbed in the change of one mole of graphite to one mole of diamond C(...

Chem
The reaction through which carbon changes from graphite to diamond form is represented by the equation C(graphite) ---> C(diamond) delta H: ? Using the reactions below, determine the amount of heat absorbed in the change of one mole of graphite to one mole of diamond C(...

Chemistry
Calculate the enthalpy of formation of maganese (IV) oxide based on the following information. 4Al(s) + 3MnO2(s) --> 3Mn(s) + 2Al2O3(s) Delta H = -1790 kJ 2Al(s) + 3/2O2 (g) ---> Al2O3 (s) Delta Hf = -1676 kJ

Chemistry
So i would change the sign of the second equation and add them?

Chemistry
The reaction through which carbon changes from graphite to diamond form is represented by the equation C(graphite) ---> C(diamond) delta H: ? Using the reactions below, determine the amount of heat absorbed in the change of one mole of graphite to one mole of diamond C(...

Chem
How did u get 4.186 kj?

Chem
Compound B is burned in a bomb calorimeter that contains 1.50 liters of water. When I burned 50.0 grams of compound B in the calorimeter, the temperature rise of the water in the calorimeter was 35.0 degrees C. If the heat of combustion of compound B is 2,150 kJ/mol, what is ...

Chemistry
Consider the following three reactions: Ca(s) + 2H2O(l) ---> Ca2+(aq) + 2OH^- (aq) + H2(g) CaO(s) + H2O(l) ---> Ca2+ (aq) + 2OH^- (aq) H2(g) + 1/2O2 (g) ----> H2O (l) Delta H = 430.75 kJ Delta H = 81.55 kJ Delta H = 285.63 kJ Determine Delta H for the overall reaction...

Chemistry
How much energy will be liberated upon the combustion of 12.5 grams of ethene? C2H4(g) + 3O2(g) ----> 2CO2(g) + 2H2O(g) Delta H = -1387.4 kj

Need ideas
It is for Religion class... Grade 12.. we are just supposed to explain the topic and connect it to the Catholic Church...

Need ideas
I am doing a presentation on Consumerism... I need ideas on activities that have to do with Consumerism I can do with the class... To engage them

Religion
How does St.Therse of Lisieux exemplify the qualities from the parable the Good Samaritan

life orientation
No guys plz help with answer not wat u r doing and let's help each other plz plz plz

Math
I need help coming up with a unique game that can be played at a carnival, amusement park or casino.... and u need to be able to explain the probabality of your game. Any ideas

maths
A.If 0 is less than or equal to thita is less than 360 ,find all possible value of thita such that : 1.Sin thita =0.5623

English
I have to write a point form outline for a short story... i need to start with a flashblack but not sure how? the topic: Your main character is an easy going 74-year old woman. The story begins in a doctors surgery. Your character is determined to get to the truth.

Math
The game of euchre uses the 10s, jacks,queen,kings and aces from a standard deck of 52 cards. How many 5-card euchre hands have at least 2 red cards? Explain your reasoning. What is this question asking me to find, this is what I don't understand

Math
You are setting up a system of programming codes for a universal TV remote. Each code will have five digits and cannot include a 0 or repeat any digits. How many codes: A) do not contain a 1? My answer: 8x7x6x5x4 = 6720 codes B)have 2 as the 2nd digit and 4 as the fourth digit...

Math
Expand (3-x)^7 Would i start like (3)^7(-x)0 etc....

Math
For a calculus quiz, the teacher will choose 11 questions from the 15 in a set of review exercises. How many different sets of questions could the teacher choose

Math
How many different sums of money can U make with 4 pennies, two nickels and six quarters

Math
Find the middle term in the expansion of (2x+3y)^12

Prob
A game is played using three 6-sided dice. You throw these dice one time and if the dice all show the same number ( triples), you win \$ 40.00 . For this game to be “fair”, how much should a person pay to play this game ?

Math
In the expansion of (ax +by)^8, the first three terms are 256x^8, 6144x^7y and 64512x^6y^2. Find the values of a and b

Math
A new theme park will have five roller coasters, six water rides and eight suspension rides. How many different combinations of rides could you try at this park.

Data management check
A fabric store has 44 bolts of fabric on its clearance table. Of these bolts 28 are broadcloth, 17 floral prints, 22 have a blue background, 12 floral prints on broadcloth, 10 arare broadcloth with a blue background, and 5 are floral prints with blue background. If all but 2 ...

Data Management check
A fabric store has 44 bolts of fabric on its clearance table. Of these bolts 28 are broadcloth, 17 floral prints, 22 have a blue background, 12 floral prints on broadcloth, 10 arare broadcloth with a blue background, and 5 are floral prints with blue background. If all but 2 ...

Data Management
You are thinking of using some leftover ceramic tiles to make a decorative border for a patio. You have ten blue, four gold, and six white tiles. In how many ways can you make the border if it requires 15 tiles and you use only blue and white ones? Explain your reasoning. i ...

Data Management (need help)
Suppose that the SJCS and Mary Ward are in the basketball final. In this best-of-three series, the winner is the first team to win two games. There are 60% chances SJCS TEAM will win first game. If SJCS wins, there are a 70% chance of winning next game and if they lose there ...

Math
From the top of an 8m house the angle of elevation to the top of the schools flagpole across the street is 9 degrees The angle of depression is 42degrees to the bottom of the pole How tall is the flagpole

math help pls pls
The price of a gym membership has a one-time sign-up fee and a monthly fee. The price can be modeled by the function y = 10x + 15, where x is the number of months. What is the y-intercept, and what does it represent? 10; it represents the monthly fee 10; it represents the one-...

Social Studies
A, B, D, B, connections academy

Chemistry
If you make a solution in the laboratory that contains 0.1 M acetic acid (CH3COOH), what concentration of hydronium will you have once the solution equilibrates?

Chemistry
If you make a solution in the laboratory that contains 0.1 M hydrochloric acid, what concentration of hydronium will you have?

Chemistry
What is the strongest intermolecular force present in each molecule: H2S CF4 NH3 CS2 PCL3 N CH2O C2H6 CH3OH BH3 My work: Hydrogen bonding London dispersion Dipole dipole London dispersion Dipole dipole London dispersion Hydrogen bonding Hydrogen bonding Hydrogen bonding Am I ...

English
Identify the sentence with the correct end punctuation. 1.did you see the elephants 2.I saw a baby kangaroo 3.who found the way to the penguins 4.I miss the monkeys

history
What were arguments for maintaining the slave trade and slavery in general during the Constitutional Debates on Slavery? How did the delegates from Georgia and South Carolina in particular impact the debate?

Math
At a school of 1400 students, 800 are currently enrolled in English, 740 are enrolled in mathematics and 325 are enrolled in both subjects. How many students are enrolled neither English nor Mathematics? I got 650 is this right?

Math
A game show has three doors labelled A,B, and C behind which there may or may not be a prize. A group of contestants are asked behind which doors they think there is a prize. The results are that 18 people choose A, 19 people choose B, 19 people choose C, 4 people choose A and...

Social Studies
@Ms. Sue

Social Studies
Answer the following about the great wall of china: a.When, where, and why did it develop? b.How was it used or practiced? c. Whom did it affect? d.What was the lasting impact this innovation had on China and its people? e.What are some modern examples of the concept or product?

math
How would i solve for n nP5 = 14(nP4)

math
Solve the equation for n n!/(n-2)! = 90 I get n= 10 but when i plug 10 back into the equation i don't get 90 to check... My work: n!/(n-2)! =90 n(n-1)(n-2)/(n-2)! =90 i cancelled the n-2 and expanded the n(n-1) n^2 -1n -90 =0 (n-10)(n+9) = 0

Math
An explicit solution of a differential equation is: a) a simpler equation b) a real number c) a function on some domain d) an approximation e) a linear relation

Data Management
Simplify x^2 - xy + 2x/2x

Physics
a spring extends by 10 cm when a mass of 100g is attached to it. what is the spring constant?

math
The ratio of four less than a number to twenty six more than the number is 1:3 . what is the number?

Operations
Its McDonald's

Operations
We are talking for example McDonald's how does their work force reflect their global strategy?

Operations
Could someone what do they mean by this question please.How does their work force reflect their global strategy?

Math connexues
what are your answers? i cant check them with out seeing what you choose

algebra
the sum of two numbers is 6 more than three times the smaller and and their sum is 66. what are the numbers?

Science
Actually, -_- , number 8, is b. thank a lot that's what i got first but i thought u were right. Check your answers!!

global studies
this is a 20 question project and i could really use a lot of help :)

global studies
some polynewian islands are ring- shaped coral islands that surround a body of wate, or? a.)copra b.) coral c.)atolls d.)plates

Math
Find 5 ordered pairs that satisfy each relation. Draw each graph. 4. x+y=7 5. x+y=6 6. x-y=1 7. x-y=0 8. x+y=0 9. y-x+0

Maths
A ship is sighted from the top of a lighthouse. The angle of depression from the lighthouse to the top of the ship is 45 degrees. The distance from the top of the lighthouse directly to the ship is 4 miles. Calculate the horizontal distance of the ship from the bottom of the ...

Biology
When inserting a gene, a gene for antibiotic resistance were also added to the plasmid. Why is this done?

Biology
Explain the ramifications to the process of transcription if the following occurs: A) The termination sequence of a gene is removed

Biology
3'-GGCACTCGCATAATATTCGCCATGGCT -5' In the DNA sequence above, how do i identify the promoter region..

math
K is 9 years older than L after 7 years the total of their age is 93 so how old are they in each one of them?

Biology
What effects does epinphrine have on the excretory and endocrine systems.. i cant find any sites to help

Math
Thank you very much, happy holidays

Math
Solve simultaneously for the two equations for x and y 5x(cos 45) + 15y(cos 30) = 2,000 5x(sin45) - 15y(sin 30) = 0 I tried adding these two eqn. to elimate y and solve for x by adding [5 x cos 45] and [5 x sin 45] but the value for x is too high. Would I have to use trig ...

Physics
Search The statue of Isaac Newton is crated and moved from the Oxford Museum of Natural History and Science for cleaning same question there