# Posts by Sarah

Total # Posts: 5,805

History
What was the Columbian Exchange? A. The exchange of new goods globally as a result of European exploration B. A trading post established by Christopher Columbus C. An economic system set up by Christopher Columbus in the Americas D. The trading of goods from Columbia to North ...

History
thank you..its B

History
Sir Thomas More was executed because he A. would not stand with Henry VIII against the Protestant revolt. B. would not accept Henry VIII as head of the Church in England. C. protested the corruption of the Roman Catholic Church. D. set up a utopian community based on Calvinist...

Math
Use the acidity model given by pH = −log[H+], where acidity (pH) is a measure of the hydrogen ion concentration [H+] (measured in moles of hydrogen per liter) of a solution. Compute [H+] for a solution in which pH = 6.2. (Enter your answer in scientific notation. Round ...

Medians $\overline{AX}$ and $\overline{BY}$ of $\triangle ABC$ are perpendicular at point $G$. Prove that $AB = CG$. In your diagram, $\angle AGB$ should appear to be a right angle.

Regression Analysis: Avg. Tot. Score versus %Takers, T/S Ratio Model Summary S R-sq R-sq(adj) R-sq(pred) 34.2385 79.91% 79.06% 76.83% Coefficients Term Coef SE Coef T-Value P-Value VIF Constant 1118.5 39.5 28.34 0.000 %Takers -2.547 0.187 -13.62 0.000 1.05 T/S Ratio -3.73 2....

Math
Mr. Jacobs budgeted $1,200 for tiles his sketch of the floor requires him to use 38 white tiles each white tile cost$12

English
Ok, thanks. But how do I actually write the paragraph? As to say, in the 1st sentence what should I write? and same to the 2nd, 3rd , 4th, 5th, and so on. As an example..

English
How do I write a paragraph response based on a book-chapter? Thanks in advance!

Personal Finance
To stretch your income during retirement, you could: A. skip leisure activities. B. cut your food expenditures. C. cancel your life and property insurance. D. use your skills and time instead of your money. I think its A..

Personal Finance
If overall interest rates in the economy rise, a corporate bond with a fixed interest rate will generally: A. increase in value. B. decrease in value. C. remain unchanged. D. become worthless. B?

Math
Thank you

Math
Terry buys a shirt for $14.99 and a pair of jeans for$39.99. If the sales tax is 8.25%, what is the total price Terry pays for the items? Can someone please show me how to work this problem?

english
What best completes this statement about "London, 1802"? In Lines 9 and 10 Wordsworth uses _____. personification metaphor simile allusion line9 Thy soul was like a star, and dwelt apart; line10 Thou hadst a voice whose sound was like the Sea:

EASY Pre-Algebra
In the following situation, determine whether you are asked to determine the number of permutations or combinations. Then do the calculation. How many ways can the four offices of chairman, vice chairman, secretary, and treasurer be filled from a club with 28 members?

Physics
A ball is thrown from the ground toward a cliff of height h with a speed of 30.0 m/s and an angle of 60o above horizontal. It lands on the cliff 4.00 s later. How high is the cliff? Answer: 25.5 m But having difficulty getting this answer

Physics
You take a trip in your car. Starting from rest, you accelerate at 1.00 m/s2 for 10.0 s, heading north. You then stop accelerating and immediately head west at a constant speed for an additional 20.0 s, at which point, you crash into a building coming to an instant stop. At ...

Calculus
A landscape architect wished to enclose a rectangular garden on one side by a brick wall costing $60/ft and on the other three sides by a metal fence costing$50/ft. If the area of the garden is 102 square feet, find the dimensions of the garden that minimize the cost.

speech for history

Chemistry
Both ethanol (CH3CH2OH, MM=46.07g/mol) and methanol (CH3OH, MM=32.04g/mol) have been considered as fuels for automobiles. Which is the better fuel, on a per gram basis, when burned with oxygen? CH3CH2OH(g) DeltaHf(KJ/molrxn) = -235.10 H3OH (g) DeltaHf(KJ/molrxn) = -200.66 H2O...

Writing
Please, need help. Anyone, I'll appreciated! For western history class, what did Arab culture look like before the appearance of Muhammad and Islam?

English
Is Mercutio a foil to the Nurse? I think they are not, but can you please check my answer? Thanks

Math
A girl bought mangoes at 7.50 each. There were two types of mangoes: good ones and not so good ones. She sold the good ones at 7.90 each and the not-so-good ones at 7.70 each. If she earned 34, how many mangoes did she buy?

Chemistry
A 26.8 mL sample of a solution of RbOH is neutralized by 15.71 mL of a 1.918 M solution of HBr. What is the molarity of the RbOH solution?

social studies
what was the supreme court's ruling on the dred scott case?

Social Studies 9
Purpose some reasons why women were unable to keep leadership positions during the rein of terror? There is nothing about this in my textbook.

math
90% as a decimal is 0.9. If you multiply 0.9(the result on the test)x90 (how many questions there were) you get 81. Peggy got 81 questions right out of 90 which is 90%.

English
In class, we are studying Romeo and Juliet. Do you know what tragedies afflicted Peter ,the servant to the Nurse? I know that the Nurse was affected by the death of her husband and child. However, I don't know what tragedy affected the apothecary or minstrels. Was the ...

english
so (not come unless you invite him)

english
can anyone help

english
(will not) ???

english
Put parentheses around the adverb clause by placing the parentheses in their correct locations. He will not come unless you invite him.

english
parentheses around (because he canceled the party)

english
Put parentheses around the adverb clause by placing the parentheses in their correct locations. He hasn't showed up here because he canceled the party.

english
thank you

english
would it be (in case i am called away)

english
Put parentheses around the adverb clause by placing the parentheses in their correct locations. Please get my mail in case i am called away.

Chemistry
@DrBob222 I got the last question that I posted wrong and I solved it the same way. Could you show me the answer and how you got it? My test is Friday and this is a practice problem. Suppose that 30 mL of 0.5 M CsOH and 55 mL of 0.1 M NaHS are mixed. What is the K for the ...

Chemistry
Suppose that 30 mL of 0.5 M CsOH and 55 mL of 0.1 M NaHS are mixed. What is the K for the dominant equilibrium in terms of Ka's, Kb's, Kw etc.? Ka of HS- 1/Ka of HS- Kb of OH- 1/Kb of OH- Kb of S-2 1/Kb of S-2 Kw 1/Kw There is no reaction.

Chemistry
Suppose that 85 mL of 0.4 M NaF and 50 mL of 0.4 M HCl are mixed. What is the K for the dominant equilibrium in terms of Ka's, Kb's, Kw etc.? Ka of HCl 1/Ka of HCl Ka of HF 1/Ka of HF Kb of F- 1/Kb of F- Kb of Cl- 1/Kb of Cl- Kw 1/Kw There is no reaction.

math
a 12.0 gallon gasoline tank holds 66.0 pounds of gasoline. If this gasoline cost $3.50/gallon, what is the cost of 1 gram of gasoline.. I need help with just the set up part.. I don't know where to start.. help please Chemistry What is the complete ionic equation for the following reaction? Aqueous iron(III) sulfate is added to aqueous sodium sulfide to produce solid iron(III) sulfide and aqueous sodium sulfate. EASY Math The equation V = -2000t + 20,000 describes the value in dollars of a certain model of car after it is t years old. If a car is worth$14,000, find the age of the car.

Statistics
How do I find a P VALUE given the Z statistic using the empirical rule? Doing this by hand

Statistics
How do I find a p value given the Z statistic using the empirical rule?

Math
The equation V = -2000t + 20,000 describes the value in dollars of a certain model of car after it is t years old. If a car is worth $14,000, find the age of the car. English grammar 1. Some of the pie IS missing 2. All of the pies ARE missing Calculus Suppose you are in a room that is a*10 meters. You can walk normally along the "a" meter long wall at "s" meters per second and crab walk in any direction at 1 meter per second. You start at one corner of the room, walk normally along the wall of length &... Calculus Suppose x; y, and z are positive numbers that sum to 10. What is the largest possible value of xy + xz + yz? (a) First, suppose that z is a fixed parameter. Then we have to find nonnegative numbers x and y (depending on the fixed value z such that x+y = 10-􀀀z), such ... Public Speaking(actually check please) 1. A - Passive Agreement with a Policy 2. C - Question of Value 3. C - Problem, Plan and Practicality 4. D - Reasoning These are the final and correct answers. Public Speaking(check) 1. A - Passive Agreement with a Policy 2. C - Question of Value 3. C - Problem, Plan, and Practicality 4. D - Reasoning Final and Correct Answers STATISTICS PLEASE HELP An HR manager at a large agricultural equipment company is considering proposingputting the sales staff on 4 day - 10 hours/day work weeks, instead of their current 5day - 8 hours/day week. It is believed that this will decrease the amount of drivingthey must do during a ... Statistics What is the critical value in this question? Assume that we randomly sample 200 residents of Indiana and ask them if they favor having the government issue marriage licenses to same-sex couples. 104 say that the do; 96 don’t. Test at the 5% level whether the population ... math How can you find the volume of a rectanglar prism using a model?!!! chemistry 3NO2(g) + H2O(l) → 2HNO3(l) + NO(g) How many moles of nitric acid are produced starting from 5.00 moles of NO2(g) and 2.00 moles of water? Please help, Chem How many oxygen atoms are present in 2.00 millimoles of H2SO4? magh suppose you put money into teo different bank accounts. In account #1 you deposit$500 and you will be earning 6% interest compounded quarterly. in account #2 you deposit $600 and you will be earning 5% interest compounded annually. Which statement below best describes the ... Chemistry When 28g calcium reacts with 25 grams oxygen, how many grams calcium oxide form? I have 2Ca+ 2O2= 4CaO its is not working. Stoichemistry. I have the Ca as the reactant that is limiting? Please help. Accounting use the following information to complete the partial worksheet for bills company math Find c and I. Choose the right answers. Hint: c = total of payments - amount financed Amount Financed (m) =$3,500 Number of Payments per year (y) = 12 Number of Payments (n) = 36 36 payments of $104.50 each. To the nearest penny, total interest(c) =$ To the nearest tenth, I =

Health
it could be either a or b is it or would it just be a

math
A shirt is on sale for $12.75.this is 15percent off the original price.what was the original price of the shirt? Math uh idk English I think its D I'm not sure English Roosevelt is arguing that journalists must only attack misconduct when they have valid proof. They must not dig just for the sake of digging; it is offensive to good Americans. Which statement most effectively argues against this claim? a) Even sensational journalism is ... math In the theory of relativity, the mass of a particle with speed v is m=f(v)=m01−v2/c2√, where m0 is the rest mass of the particle and c is the speed of light in a vacuum. Letting m0=1, find f−1(10). f−1(10)= Math A car fits onto a golden rectangle with a length of 12 ft. What is the cars width? Write your answer in simplified radical form and rounded to the nearest tenth of a foot. Statistics A bolt manufacturer is using a hypothesis test with α = 0.01 to see if the diameter of their 0.75 cm diameter bolts are being manufactured properly. The goal is to have the average bolt diameter be 0.75 ± 0.0075 cms. Statistics Drug clinical trials are analyzed using hypothesis testing methods. As we’ve discussed, the null hypothesis in the effective stage of such trials is that the drug being tested is ineffective. The alternative, of course, is that the drug is effective. Explain why such ... Statistics Recall that the power (1 – β) of a hypothesis test is the probability that we will reject the null hypothesis given that it is false; that is, the probability that we will correctly reject the null hypothesis. All other things being equal, which of the following ... College history The choice are A.) elementary school B.) Adulthood. C.) high school and D.) College That's why I'm confused I don't know if it's saying when it started or when it was mostly studied College history Social order and norms of behavior are often learned in what era or school time? I think it's either college or adulthood History A Story that contains little or no policy content and is not related to the days event but that commonly discussed popular personalities and is designed to draw greater viewer interest is what? I think is biased media coverage Science How does lustre affect the amount of heat being absorbed by a black can MATH The answers don't seem to be correct? MATH Suppose f(x)=3x−2. Then f(1) = f(t) = f(x2) = f(f(x)) = math 25? math Let f(x)=6x−1 and g(x)=3−x2. Evaluate the following: 1. f(g(0)) English II what was the correct one? Math A cheese pizza costs$5. Additional toppings cost $1.50 each. Write and graph an equation in two variables that represents the total cost of a pizza. Math 7B It was 1. A 2. A Math 7B A bag contains 4 white, 3 blue, and 5 red marbles. 1. Find the probability of choosing a blue marble, then a red marble if the marbles are not replaced. a. 5/44 b. 15/35 c. 2/3 (i pick this) 2. 1/15 2. Find the probability of choosing two white marbles in a row. a. 1/11 b. 1/9... Music What's the scale of the G? chemistry what would be observed when combining an aqueous mixture of: potassium carbonate and hydrochloric acid, zinc chloride and silver nitrate, magnesium chloride and sodium hydroxide, ammonium nitrate and sodium hydroxide? chemistry 1.what are the functions of pH? Biology please assist 1. Where is pH found? 2.what is the function of pH? 3.what principle guides the phenomenon of pH? 4.what is acid rain ?how is it related to pH values? finance A 10-year bond has a coupon rate of 7% annually and a principal payment of$1,000.00. Other similar bonds are paying 9% annually. To determine the value of this bond you must:'

Writing
Why is it hard to write? I've always had trouble with it, I thought that by now I would've gotten better at it, but unfortunately, I'm even worse than before.

Writing
Help, please!!!! I need to write a paragraph How do I write a good one? What types of paragraphs are there?

History
What led to the fall of the Roman Empire in Western Europe, specifically in terms of political instability, economic and social problems, weakening frontiers, and the split of the empire. This is a study guide question. I just need some help figuring out a good response to ...

Physics
The projectile launcher shown below will give the object on the right an inital horizontal speed of 9.40 m/s. While the other object will be dropped with no initial speed. The objects are initially 114 cm above the ground. What will be the difference in the speeds of the two ...

English
Might something as this... A thesis statement: Scientific advances do have an enormousness repercussion which leads humanity to its darkest fears and anxieties.

English
Help, Please! I don't quite understand what is asking in this assignment (Essay) Task: Write an essay that compares Frankenstein and his creation to a modern zombie story with the focus on how a monster might be used as a metaphor for science or scientific advances and/or ...

English
Okay, but each one of them: 1 Frankenstein 2 Zombie, will have its own body paragraph or not?

English
Help, Please! I don't quite understand what is asking in this assignment (Essay) Task: Write an essay that compares Frankenstein and his creation to a modern zombie story with the focus on how a monster might be used as a metaphor for science or scientific advances and/or ...

Is graduate tuition is tuition for graduate school? I want to become a nurse. Graduate tuition Nursing $828.00 per credit But here the tuition is$17,166 The annual total list price cost to go to Mercy was $31,928 I'm sooo confused please help. Does it cost more than$31,928?