# Posts by Sally

Total # Posts: 1,313

1. ### Math

A milk company unconditionally guarantees that an unopened, properly refrigerated container of its milk will be fresh for 5 days after the date stamped on the carton. The company's data shows that unopened containers remain fresh on average for 6 days, with a standard ...
2. ### Math

A coin is tossed three times. Determine which of the following outcomes describe mutually exclusive events. a) A: all tosses are heads , B: all tosses are tails b) A: at least one toss is a tail , B: at least one toss is a head c) For both a) and b) find P(A or B) and P( A and...
3. ### Math

I am currently doing a question in which the equation is dN1/dt= -N1 + 0.1N1*N2 However, I am able to follow until the step of -N1(1 - 0.1N2) after that I'm not able to follow to the step of (-1)N1 (1-N2/10) Can someone please explain to me how we went from the second step...
4. ### Psychology

I’m having a hard time finding examples that are in the media that was broadcasted after the 28th of January 2018
5. ### Psychology

Good morning , earlier I had specified that I needed help developing a concept for my essay that has to be written . Briefly I’ll rexplain what I had mentioned in a prior post . I have to write an essay based on a psychology concept . Based on the concept of my choice , I...
6. ### Psychology

I have to write an essay on a psychology concept and I was thinking about writing my essay on the concept of conformity. However, my professor prefers that we use media examples that occurred after the 28th of January. This example is to be used to explain or rather show ...
7. ### physics

A rifle with a mass of 0.9 fires a bullet with a mass of 6.0 g (0.006 kg). The bullet moves with a muzzle velocity of 750 m/s after the rifle is fired. A. What is the momentum of the bullet after the rifle is fired? B. If external forces acting on the rifle can be ignored, ...
8. ### Chemistry

A solution is 0.20 M in Cd2+ and 0.20 M in Ca2+. NaOH solution is added slowly through a burette. Ca(OH)2 (s) <------> Ca2+ (aq) +2OH (aq) Ksp= 5.5*10^-6 Cd(OH)2 (s) <-----> Cd2+ (aq) +2OH (aq) Ksp= 2.5*10^-14 Calculate the concentrations of hydroxide ion, calcium ...
9. ### CHEMISTRY

A buffer was prepared by dissolving 0.40 mol of benzoic acid (Ka=6.3*10^-5) and 0.50 mol of sodium benzoate in sufficient pure water to form a 1.00 L solution. To this solution was added 30.00 mL of 2.00 M HCl solution. What was the pH of the new solution? C6H5COOH (aq) + H20...
10. ### social studies

thank you ms.sue
11. ### social studies

thank you those really helped me, 1. B 2. A Are those correct
12. ### social studies

what negative impact did gold and silver mining have in the west? A. Tent cities near the mines fostered criminals as long-term residents B. ghost towns were left behind after the mines stopped producing. C. mining camps were sources of many contagious diseases *** D. mass ...
13. ### physics

How much work in eV is required to bring three charges of 5.4x10-19C from a great distance apart to 3.76x10-8m from one another (at the corners of an equilateral triangle)?
14. ### physics

How much work in eV is required to bring three charges of 6.8x10-18C from a great distance apart to 5.04x10-9m from one another (at the corners of an equilateral triangle)?
15. ### Geometry

The captain of a boat is planning to travel to three islands in a triangular pattern where one side of the side island is 75 miles and the other side is 32 miles. What is the possible range for the number of miles round trip the boat will travel? Answer: between 150 and 214 ...
16. ### Math

The minute hand of a clock is 6 cm long. How far does the end of the hand the hand of the hand travel in 35 minutes
17. ### statistics

In a game of dice, the probability of rolling a 12 is 1/36. The probability of rolling a 9, 10, or 11 is 9/36. The probability of rolling any other number is 26/36. If the player rolls a 12, the player wins \$5. If the player rolls a 9, 10, or 11, the player wins \$1. Otherwise...
18. ### Chemistry

At standard temperature and pressure (0?C and 1.00atm), 1.00mol of an ideal gas occupies a volume of 22.4L. What volume would the same amount of gas occupy at the same pressure and 30?C?
19. ### Math

What are the common and least common multiples of 8&12, 3&5, 7&11, 9&10, 24&36, 20&25, 42&14, 30&12?
20. ### Math

What are the least common multiples of 8 and 12?
21. ### Math

The expression 3 x n can be written 3n. Use n= 1,2,3 ..., 10 to evaluate the expression. Describe the set of ten numbers. Suppose the sequence continues ror values of n greater than 10. Do the numbers 12, 21, 30 or 210 appeae in the sequence?
22. ### Geography

In southwest asia most people live?
23. ### social studies

What role did yellow journalists play in the Spanish American War?
24. ### Language Arts

Oh I understand now. Thank You!
25. ### Language Arts

All of the following sentences are complex EXCEPT A) Even though acid rain can have damaging effects, few people know much about it. B) Acid rain has been studied as an environmental issue by the government since the 1970s. C) Since they erode statues and corrode steel ...
26. ### Language Arts

Yes! Thank you!
27. ### Language Arts

Which sentence uses a participial phrase? A) The fence, which was broken and dirty, looked terrible. B) Shutting out their opponent, the other team celebrated in victory. C) Swimming in the pool all day is my favorite way to spend the summer. D) I am pretty tired and not ...
28. ### Geometry

plz help me ASAP... PLZ PLZ PLZ
29. ### Geometry

M is the midpoint of AB and N is the midpoint of AC, and T is the intersection of BN and CM. If BN is perpendicular to AC, BN = 12, and AC = 14, then find CT. Diagram is at: goo.gl/j3cBCE

The Europeans, in order to be successful living in North America, relied heavily on First Nation people. This is best shown by the ...... A. Assistance Europeans received incurring scurvy B. Development of many skills to survive life in the Canadian wilderness C. Assistance in...

The Irish Potato Famine, unemployment, poverty, and the lack of farmland were some of the reasons why people immigrated to British North America. Thesee reasons are: A. Pull gators of immigration B. Push factors of immigration. C. All in a days work. D. The terms of the Treaty...
32. ### math

Find the slope of the line through (-9,-10) and (-2,-5) A. -5/7*** B. 7/5 C. 5/7 D. -7/5

34. ### Math

Surface area of a square pyramid 11in 13in and 9in 11 height 13 slant height 9 base edge I keep getting the wrong answer its not 328.62 or 294.93 Square area of a cone 15 slant height 12 height 6 base
35. ### Math

Ohh lol! Thanks Ms.Sue!

No.
37. ### Math

Oops sorry I added that all up wrong it's 10121.49.. I have to round that by two decimals but I don't think it can be rounded?
38. ### Math

I'm not sure what you are asking me...sorry I suck at math Ms.Sue
39. ### Math

Sorry for posting twice I have to round 7276.74 by two decimal places but I keep getting it wrong...
40. ### Basic Math

Surface area of a square pyramid 11in 13in and 9in 11 height 13 side? 9 base edge I keep getting the wrong answer its not 328.62 or 294.93 Square area of a cone 15 side? 12 height 6 base It's not 365.99 or 417.62 I don't need anything rounded...help please!
41. ### Math

LUNA IS CORRECT

It's A haha
43. ### Science

THANKS SMASHLEY
44. ### Math

Where did u get 20 from?

46. ### Math

James has set up an ordinary annuity to save for his retirement in 17 years. If his quarterly payments are \$650 and the annuity has an annual interest rate of 7%, what will be the value of the annuity when he retires? 650(1+.07/4)^17-1 =.3430281149 .3430281149/(.07/4) =19....
47. ### Math

Oops, I entered it wrong. I would take 250[1+.075/2)^3-1 the answer would be 14986.93?
48. ### Math

Oh, okay So, I would take 250[1+.075/2)^36-1 =.9517958171 .951795171(.07/4) =50.76244358 650(50.76244358) =32995.56 and this would be the answer?
49. ### Math

250[(1+.075/2)^16-1] =.8022278066/(.075/2) =21.39274151 250(21.39274151) =5348.18 So, would 5348.18 by the answer?
50. ### Math

Andy has set up an ordinary annuity to save for his retirement in 16 years. If his semi-annual payments are \$250 and the annuity has an annual interest rate of 7.5%, what will be the value of the annuity when he retires? How do I solve this equation? What steps do I take to ...
51. ### math

When sixty-five and fourteen hundredths is subtracted from eighty and forty-eight hundredths, what is the difference?
52. ### American Government

Question 7 is separation of powers and checks and balances.

its d

Thank you!
55. ### alegbra

what are the next three terms in the sequence? 5,-9,19,-37,75, ___, ____, ____
56. ### Algebra

what are the first three terms of the sequence represented by the expression n(n-1)-4? n=1
57. ### algebra

Given the function rule f(x)=x^2-5x+1, what is the output of f(-3)
58. ### trig

Reiny 2+1/3*tan(theta)=2 How do you get 0? Thanks for your help.
59. ### Trig

2+1/3tan(theta)=2 I know that tan=0 0,180 But i don't know how to figure it out. Please help.
60. ### Trig

4=5+cos(theta)
61. ### Trig

Thank you Steve for all your help.
62. ### Trig

Solve equation for 0 less than or equal to theta less than 360. 3-1/5*tan(theta)=16/5
63. ### social studies

Is it A?

How do I find the answer to 234 divided by 89 + 53 x 72
65. ### precalculus

show the correct notation for “The limit of x^2 - 1 as x approaches 3.
66. ### precalculus

Show an example where For n odd, the sign of the y-ters differ: (+) for the first expansion, (-) for the second. (For n even, the signs are the same.)
67. ### precalculus

Can you give an example as to how The expansion of (x + y)n and (x - y)n are different?
68. ### precalculus

How is the expansion of (x + y)n different to the expansion of (x - y)n ?
69. ### precalculus

How do you form the the rows of Pascal’s triangle?
70. ### precalculus

can you check my answer? Find the coefficient of the term a6b3 in the binomial expansion of the expression (a - 4b)9. ________________________________________ 5,376 344,064 -5,376 -344,064 answer: b
71. ### precalculus

Can you check my answers? 1.Find the 5th term in the expansion of the binomial. (2x - 4)8 -458,752x3 286,720x4 458,752x3 35,840x4 answer: d 2.Find the 3rd term in the expansion of the binomial. (x - 2y)12 264x10y2 1760x9y3 -264x10y2 -1760x9y3 answer:a
72. ### precalculus

Can you check my answers? 1.Use the Binomial Theorem to expand and simplify the expression. (2 - 3x)3 -27x3 + 104x2 - 36x + 8 -27x3 + 54x2 - 36x + 8 -27x3 + 8 -27x3 + 54x2 - 18x + 8 answer:b 2.Find the 5th term in the expansion of the binomial. (2x - 4)8 -458,752x3 286,720x4 ...
73. ### precalculus

can you check my answers? 1.Find the binomial coefficient. 12C3 1320 17740800 48 220 answer:d 2.Find the binomial coefficient. (10/7) 720 120 240 172800 answer:b 3.Which of the following is equivalent to 10C6? 6C10 16C10 10C4 10C10 answer:c
74. ### precalculus

How would you describe a proof by mathematical induction?
75. ### precalculus

Is my answer correct? Which of the following shows the correct first step to prove the following by mathematical induction? 3 + 11 + 19 + 27 + … + (8n - 5) = n(4n - 1) ________________________________________ 3 + 11 + 19 + 27 + … + (8 • 1 - 5) = 1(4 • 1 - 1...
76. ### precalculus

Is my answer correct? Find Pk + 1 if Pk = 7 + 13 + 19 + ...+[6(k - 1)+1] + (6k + 1) ________________________________________ 7 + 13 + 19 + …+[6(k - 1) + 1] + (6k + 1) + [6(k + 1) + 1] 8 + 14 + 20 + …+[7(k - 1) + 1] + (7k + 1) 7 + 13 + 19 + …+(6k + 1) 7 + 13 + 19...
77. ### precalculus

Is my answer correct, I am confused by this question? Find the second difference for the sequence. 7, 6, 7, 10, 15, 22, …. 1 2 3 5 answer: 2
78. ### precalculus

can you check my answer? 2.Which of the following shows the best next step to prove the following by mathematical induction? n!>2^n, n?4 1. When n=1 the formula is valid because 4!>2^4 24>16 2.Assuming that k!>2^k show that (k+1)!>2^k+1 (k+1)!=k!(k+1) a.k!(k+1)&...
79. ### precalculus

Can you check my answers? 1.Which of the following shows the best next step to prove the following by mathematical induction? 3^n>n*2^n, n?1 1.When n=1, the formula is valid because 3^1 1*2^1 3>2 2.Assuming that 3^k>k*2^k a.3^k+1>k+1*2^k+1 b.3^k+1>k*2^k+1 c.4^k&...
80. ### precalculus

Can you check my answer? Which of the following shows the best next step to prove the following by mathematical induction? 1+4+7+10 + + (3n-2)=n/2(3n-1) 1.When n=1, the formula is valid because (3*1-2)=1/2(3*1-1) (3-2)=1/2(3-1) 1=1/2(2) 1=1 A. You must show that 1+4+7+10...
81. ### precalculus

Can you check my answers? 1.Which of the following shows the best next step to prove the following by mathematical induction? 3^n>n*2^n, n?1 1.When n=1, the formula is valid because 3^1 1*2^1 3>2 2.Assuming that 3^k>k*2^k a.3^k+1>k+1*2^k+1 b.3^k+1>k*2^k+1 c.4^k&...
82. ### precalculus

Are my answers correct if not which are right? Find the second difference for the sequence. 7, 6, 7, 10, 15, 22, …. 1 2 3 5 answer:a Find first differences for the sequence in order from a1 to a5. Determine whether or not the series is quadratic or not. -1, -3, -1, 5, 15 ...
83. ### precalculus

Find Pk + 1 if Pk = 7 + 13 + 19 + ...+[6(k - 1)+1] + (6k + 1) 7 + 13 + 19 + …+[6(k - 1) + 1] + (6k + 1) + [6(k + 1) + 1] 8 + 14 + 20 + …+[7(k - 1) + 1] + (7k + 1) 7 + 13 + 19 + …+(6k + 1) 7 + 13 + 19 + ...+[6(k - 1) + 1] + (6k7 +1) + (6k + 2) answer:D What is ...
84. ### precalculus

For question 1 Find Pk + 1 if Pk = 7 + 13 + 19 + ...+[6(k - 1)+1] + (6k + 1) there isnt an option for the answer Pk = 7 + 13 + 19 + ...+[6(k - 1)+1] + (6k + 1) + (6k + 7) so I am confused as to which is the correct answer. for question 3 Which of the following shows the ...
85. ### precalculus

Find a quadratic model for the sequence. -4, -4, -3, -1, 2
86. ### precalculus

find Pk + 1 if Pk=2K-1/k!
87. ### precalculus

Find a quadratic model for the sequence with the indicated terms. 3, 3, 5, 9, 15, 23, ...
88. ### precalculus

Prove the inequality for the indicated integer values of n. n! > 2n, n ? 4
89. ### precalculus

Find Pk + 1 for the given Pk. Pk = 1 + 6 + 11 + … + [5(k - 1) - 4] + (5k - 4)
90. ### American Government

1. B 2. D 3. A i just got 100%
91. ### Problem solving

Place a counter over the children. Draw the counter. Dont not what im suppose to do though.

thank you

A then?

Will someone please help? i'm being very impatient, i know! but i really need this to be turned in!!!

Which of these statements about saltwater is correct? Saltwater freezes at a lower temperature Saltwater freezes at a higher temperature Saltwater does not freeze at any temperature Saltwaters freezing point depends on the temperature of the ocean floor***** PLEASE HELP ME
96. ### Probability & Stats

The probability that Pete will catch fish on a particular day when he goes fishing is 0.8. Pete is going fishing 3 days next week. 1. The probability that Pete will catch fish on exactly one day is: a. .008 b. .096 c. .104 d. .8 Please show work

98. ### LANGUAGE ARTS

yeah they change up some of the andwers but anonymous will give you the general idea

Thanks!!!!

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