# Posts by Sally

Total # Posts: 1,311

1. ### Physics/Calc

A ball is thrown vertically upward from a cliff with a speed of 20 ft/sec. The ball hits the ground at 140 ft/sec. How high is the cliff? v'+-32
2. ### MATH!

the cost of a midnight madness movie ticket, is reduced by 2/5 of the original cost, to a cost of 3/5c. which expression is equivalent to the new cost? A)c-3/5c B)1-3/5c C)1-2/5c D)c-2/5c

Good job
4. ### Algebra

A fuel storage tank has one supply pump and two identical outlet pumps. With one outlet pump running, the supply pump can increase the fuel level in the storage tank by 8450 gallons in 30 minutes. With both outlet pumps running, the supply pump can increase the fuel level in ...
5. ### Chemistry

How do I balance CuSO4 + NH3 + H2O = (NH4)2SO4 + Cu(NH3)4(OH)2 Thank you!!!

He shade the row of 2
7. ### physics

consider the 666 N weight held by two cables shown below. The left hand cable and tension 530 N and makes an angle of theta2 with the ceiling. The right hand cable had tension 390 N and makes an angle of theta1 with the ceiling. What is the angle theta1 which the right hand ...
8. ### Math

sin theta = 8/17 and theta is in the second quadrant. Find sin(2theta),cos(2theta),tan(2theta) exactly sin(2theta) cos(2theta) tan(2theta) sin(2theta) would it be 2 x (8/17) cos(2theta) would be 2 x (15/17) tan(2theta) would be 2 x (8/17 divided by 15/17) is this correct? I ...
9. ### Math

Hi! Could someone possibly help me solve this?; log2(x+4)=log2(x^2+2). For my answer, I got "All Real Numbers" or x=0 but I'm not sure if that's right. Thanks a bunch!
10. ### Math

Hi! Could someone possibly help me solve this?; log2(x+4)=log2(x^2+2). For my answer, I got "All Real Numbers" or x=0 but I'm not sure if that's right. Thanks a bunch! :)
11. ### BTEC Level 3 Business

I need to find out what information the finance and marketing departments need and use within a business.
12. ### Math

Okay guys no joke. These ARE the answers. I did the math. Everyone is saying number 4 is D But it's really A. D A B A C I promise you'll get a 100%. Trust Me! :)
13. ### Art

I GOT 100% FROM HOMEWORK HELPER
14. ### chemistry

Nitrogen dioxide abstracts with water vapor to produce oxygen and ammonia gas. If 12.8 grams of nitrogen dioxide reacts with 5.00 liter of water vapor at 375 degrees celisus and 725 tore, how many grams of ammonia can be produced? Use an ice table.
15. ### chemistry

give the specific heat for aluminum is 0.900 J/g*c how much energy is required to raise 25.0 g of aluminum from 20.0 to 75.0
16. ### Physics

The colors we see when looking at an object depend on the _________. A) density of the object B) amplitude of the light we see C) frequency of the light we see D) mass of the object we are looking at I think it is A
17. ### physics

Due to friction with the Earth's atmosphere, a large static electric charge could build up on our plummeting asteroid fragment. Would you expect our fragment to generate a magnetic field? Explain why or why not.
18. ### Language Arts

Why does the author of "Always to Remember" discuss Maya Ying Lin's background? A. To show that she experienced hardships B. To appeal to Chinese-American readers C. To show its influence on her design D. To show her disintrest in architecture
19. ### physics

A rifle with a mass of 12 g, traveling with a speed of 425 m/s strikes a large wooden block, which it penetrates to a depth of 15 cm. determine the magnitude of the retarding force that acts on the bullet.

21. ### math word problems

nilsa is working on a 60 minute math test. there are 20 questions on the test. if it takes her 20 minutes to complete 12 of the questions, what is the greatest amount of time on average she can spend on each of the remaining 8 questions.

23. ### English

he federal government says Canada will start shipping its experimental Ebola vaccine to the World Health Organization on Monday. The government says in a release the Public Health Agency of Canada is supplying the vaccine to the UN body in Geneva in its role as the ...

5km
25. ### English

It's like a format for answering short answer/essay questions g- general statement e- elaboration r- reference 1 r- reference 2 c- conclusion
26. ### English

I hope someone knows how to write a gerrc paragraph.. Anyways I need help for the reference part. Hence the word R, how do i show my point? I can explain the quote but I don't know the point. The general statement is, the author used a variety of humor to point the nature ...
27. ### Algebra

Using Cowling’s Rule what is the age of the child if the adults dose is 500mg and the child dose is 187 mg?
28. ### Chemist - Grade 9 - Urgent.

Predict the physical properties and relative reactivity of Ba and Sr Cs and Br ( elements from periodic table )

Predict the physical properties and relative reactivity of Ba and Sr Cs and Br ( elements from periodic table )
31. ### Sociology

Which of the following statements would be most likely? 1)Social class is defined by wealth & income alone. 2)Social class includes wealth, prestige,& influence. 3)Social prestige is directly related to economic status. 4)Life chances are equally available to all Americans.
32. ### immingration & crime

What impact do increase in immigration have on crime? 1)An increase in both crime and street gang membership 2)A decrease in both crime and street gang membership 3)An increase in crime but not in street gang membership 4)A decrease in crime but an increase in street gang ...
33. ### Minority Contract

The Disproportionate Minority Contract (DMC)mainly requires ______________. 1)the office of juvenile justice to rely primarily on self report data 2)each state to challenge inaccurate depictions of crime 3)the Department of Justice to reduce the number of incarcerated ...
34. ### Drug Law

The author argues that illegal use of____ highlighted the presence of racial discrimination in the criminal justice system. 1)crack & powder cocaine 2)pot & meth 3)crack & pot 4)pot & heroin
35. ### Sociology

Which of the following disadvantages built into the criminal justice system is not class based? 1) Jim Crow laws 2)Visibly crowed residential areas 3)An ability to pay bail 4)Racial profiling is the reason for African American pedestrian stops
36. ### science

the rock formed

which is more reactive k or ca? ( from periodic table.) when poured in water?
38. ### Chemistry

Predict the physical properties and relative reactivity of Rb, Cs, and Fr (From the periodic table)
39. ### math

1/2X+3=9 solve for x. I'm confused
40. ### STATS

In a normal distribution, approximately 34% of the scores are between the mean and +1 SD; an additional 34% of the scores are between the mean and –1 SD. So, in a normal distribution about 68% of the population (a little more than 2/3) will have scores are within 1 SD of ...
41. ### statistics

which of the following percentiles corresponds to the area beneath the normal curve from a z score of -1.00 to +1.00 a.98% b.34% c.68% d.100%
42. ### statistics

Correction On this semesters final exam, john scored 72 on his calculus exam, (class distribution (u=65, \?=3.57)\) ) and 53 on his statistics exam (class distribution :u=49, ?=2.04. Which exam should he get the better grade. z1=72-65/3.57=1.960 Z2=53-49/2.04=1.960
43. ### statistics

On this semesters final exam, john scored 72 on his calculus exam, (class distribution (u=65, \?=3.57)\) ) and 53 on his statistics exam (class distribution :u=49, ?=2.04. Which exam should he get the better grade. z1=72-65/3.57=1.960 Z2=53-49/3.57=1.120
44. ### science

The answers are; FALSE B A A you're welcome :)
45. ### Statistics

On this semesters final exam, john scored 72 on his calculus exam, (class distribution (u=65, \σ=3.57)\) ) and 53 on his statistics exam (class distribution :u=49, σ=2.04. Which exam should he get the better grade. z1=72-65/3.57=1.960 Z2=53-49/3.57=1.120

Oh thanks
47. ### Math

Also how did it become 8 15/16? Wouldnt it become 8 14/16?

Thanks ! :)
49. ### Math

Why did you change it to 44 24/16 If i may ask?
50. ### Math

At the back of the book it said it was 36 9/16
51. ### Math

A piece of wood is 8 and 7/8 in. long is cut a piece 45 1/2 in. long. If 1/16 is wasted for the cut, how much wood is left.
52. ### statistics

On this semester’s final exam, Susie scored 72 on her classics exam (class distribution: μ = 65, σ = 3.57) and 53 on her psychology exam (class distribution: μ = 49, σ = 2.04). For which exam should Susie expect the better grade? a. Classics b. ...
53. ### Geography

What do countries with large footprints have in common? Small footprints? I don't really understand .
54. ### math

Why is 5 to the negative 4 power= 1/5 to the fourth power?
55. ### English.

What is another strong way of saying : Yes, I would recommend this book to a friend.

6. 470
57. ### Math 2--questions

7. Find the sum. –14 + 7 + (–3) –24 –18 –10 *** –4 8. A scuba diver descends 350 feet and then another 120 feet. Express the diver’s final depth as an integer. –420 ft 420 ft ** –470 ft 470 ft
58. ### Check my answers? Math help.

Sorry. I left out an ption D on #4. Would the answer be 11? on four? 5. C or B?
59. ### Check my answers? Math help.

2. Write an integer to represent owing your friend \$10. –10 *** –2 2 10 3. Write the sum as a product, then simplify the product. (–8) + (–8) + (–8) + (–8) ( 2(–8) + 2(–8) = –30 4(–8) = –32 **** 4(–8) = 32 5(–8...
60. ### Science

how did you get that? please explain as well. I'd appreciate it
61. ### Science

A piece of aluminum has a mass of 39.15g and a volume of 14.5cm cube. Determine the density of the aluminum. What would the density be of a much larger piece of aluminum? explain. I established the density of the al. is 2.7g/ cm cube. I don't get the second part of the ...
62. ### Math

5y^3 ( -x^4) When x is -2 and y is -1
63. ### Geography / English

So I would say ; Continents like Africa has lessened lives due to poor medical care and services compared to Canada ? I don't know if it was connected to the importance of the evidence.
64. ### Geography / English

So I have to write an essay how do i rate canada when compared to the rest of the world. On the sheet it shows you a set up on how to write it Introductory Sentence/ Thesis -In my opinion, canada is favourable compared to the rest of the world. Supporting Evidence - Canada ...
65. ### Geography

How would you rate Canada when compared to the rest of the world? Concepts like Primary School Enrollment, Life Expectancy, Population, GDP, HDI and etc;

67. ### Appreciation

Hi Ms.Sue. I know this isnt a question but I want to thank you for helping me with questions I couldn't understand.
68. ### Algebra 1

find the product (2x+1)(2x-1)
69. ### Geography

What can we infer about a country based on its GDP? Why is the HDI a better way to compare countries than other indicators above e.g gdp, primary school enrollement etc;

In each situation s below , it seems that a new substance may have been produced. Explain why each situation represents a physical change. a) A tailor makes a new suit out of a piece of fabric. b) A chef makes a salad out of lettuce, tomatoes and cucumbers. I really need ...
71. ### Science

So what would you find something in the house? Product Symbols Precaution One example would be appreciated
72. ### math 12

\$identical\:squares\:are\:cut\:from\:each\:corner\:of\:a\:rectangular\:piece\:of\:cardboard,\:7\:cm\:by\:10\:cm.\:The\:sides\:are\:then\:folded\:up\:to\:make\:a\:box\:with\:an\:open\:top.\:If\:the\:volume\:of\:the\:box\:is\:25\:cubic\:centimeter,\:how\:long\:is\:the\:side\:of...
73. ### French

How do I say : I am going to wait for my friend to come? I am very stumped at this one.
74. ### French

Oh no I meant it to be separate. My teacher said I have to make the sentence in present so would it be a) Je fini mon travail b) Je attends pour mon ami a venir?
75. ### French

How do you say I finish my chores and I wait for my friend to come?
76. ### French

How do you say. We sing at the concert? No google translate please..
77. ### Math

Oh okay thank you and I'm not suppose to use a calculator when doing this.
78. ### Math

Can someone tell me why 9-4^2 = -7?
79. ### Math - Urgent

Thank you both.

18?
81. ### Math - Urgent

I'm sorry I need 1 more question to be asked. Use the LCD to write equivalent fractions. 5/6 , 2/9

Thank You !
83. ### Math - Very urgent.

They said it's prime numbers though?
84. ### Math - Very urgent.

Use prime factors to find the LCD for each pair of fractions. a) 1/4, 1/8 b)1/6, 1/18
85. ### Math - Very urgent.

a) The lowest common denominator would be 6? b) Would the lcd be 20?
86. ### Math - Very urgent.

Use multiples to find the LCD for each pair of fractions. a) 1/2, 1/3 b) 1/4, 1/5

Thank you :)
88. ### Math - Urgent

Determine how each multiplication or division pattern is formed. Then write the next two numbers a) 81, -27, 9 ... b) 5, -20, 80...
89. ### Geography

Writeacher sorry to bother you but can you help me?
90. ### Geography

Okay so I got the capitals down but how do I know which one is the major city. Sorry to be a bothersome.
91. ### Geography

What is/are the major cities of Canada? Im confused when it ask for the capital and major cities.
92. ### physics

Two boat landings are 3.0 km apart on the same bank of a stream that flows at 1.6 km/h. A motorboat makes the round trip between the two landings in 50 minutes. What is the speed of the boat relative to the water? How do I factor in the fact that velocity is subtracted by 1.6 ...
93. ### math

for partial fractions don't you do A/(v+2) + B/ (v-1) = (v+2)(v-1)? how do you go from there? can you show what you did step by step?
94. ### math

how do you go from dv/(v+2)(v-1) to -(1/3)/(v+2) + (1/3)/(v-1) dv?
95. ### science

and how does it go from there to this In the near-Earth orbit the rate of change of momentum is (v/R)p = (v/R)mv toward the center of the Earth, and this must equal the gravitational force GMm/R2, so mv2/R = GMm/R2, and mv2 = GMm/R. Therefore in this orbit K+U = (1/2)mv2 - GMm...
96. ### science

how is this equation derived from the momentum principle? In the near-Earth orbit the rate of change of momentum is (v/R)p = (v/R)mv