Posts by sally
Total # Posts: 1,314

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 ... 
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... 
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 (1N2/10) Can someone please explain to me how we went from the second step... 
Psychology
I’m having a hard time finding examples that are in the media that was broadcasted after the 28th of January 2018 
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... 
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 ... 
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, ... 
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 ... 
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... 
social studies
thank you ms.sue 
social studies
thank you those really helped me, 1. B 2. A Are those correct 
social studies
what negative impact did gold and silver mining have in the west? A. Tent cities near the mines fostered criminals as longterm residents B. ghost towns were left behind after the mines stopped producing. C. mining camps were sources of many contagious diseases *** D. mass ... 
physics
How much work in eV is required to bring three charges of 5.4x1019C from a great distance apart to 3.76x108m from one another (at the corners of an equilateral triangle)? 
physics
How much work in eV is required to bring three charges of 6.8x1018C from a great distance apart to 5.04x109m from one another (at the corners of an equilateral triangle)? 
Math
6 
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 ... 
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 
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... 
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? 
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? 
Math
What are the least common multiples of 8 and 12? 
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? 
Geography
In southwest asia most people live? 
social studies
What role did yellow journalists play in the Spanish American War? 
Language Arts
Oh I understand now. Thank You! 
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 ... 
Language Arts
Yes! Thank you! 
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 ... 
Geometry
plz help me ASAP... PLZ PLZ PLZ 
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 
Social grade 7
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... 
Social grade 7
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... 
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 
Math
please 
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 
Math
Ohh lol! Thanks Ms.Sue! 
Math
No. 
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? 
Math
I'm not sure what you are asking me...sorry I suck at math Ms.Sue 
Math
Sorry for posting twice I have to round 7276.74 by two decimal places but I keep getting it wrong... 
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! 
Math
LUNA IS CORRECT 
LAnguage arts
It's A haha 
Science
THANKS SMASHLEY 
Math
Where did u get 20 from? 
Math
650(1+.07/4)^681 Answer= 83698.54? 
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)^171 =.3430281149 .3430281149/(.07/4) =19.... 
Math
Oops, I entered it wrong. I would take 250[1+.075/2)^31 the answer would be 14986.93? 
Math
Oh, okay So, I would take 250[1+.075/2)^361 =.9517958171 .951795171(.07/4) =50.76244358 650(50.76244358) =32995.56 and this would be the answer? 
Math
250[(1+.075/2)^161] =.8022278066/(.075/2) =21.39274151 250(21.39274151) =5348.18 So, would 5348.18 by the answer? 
Math
Andy has set up an ordinary annuity to save for his retirement in 16 years. If his semiannual 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 ... 
math
When sixtyfive and fourteen hundredths is subtracted from eighty and fortyeight hundredths, what is the difference? 
American Government
Question 7 is separation of powers and checks and balances. 
American Government
its d 
alegbra
Thank you! 
alegbra
what are the next three terms in the sequence? 5,9,19,37,75, ___, ____, ____ 
Algebra
what are the first three terms of the sequence represented by the expression n(n1)4? n=1 
algebra
Given the function rule f(x)=x^25x+1, what is the output of f(3) 
trig
Reiny 2+1/3*tan(theta)=2 How do you get 0? Thanks for your help. 
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. 
Trig
4=5+cos(theta) 
Trig
Thank you Steve for all your help. 
Trig
Solve equation for 0 less than or equal to theta less than 360. 31/5*tan(theta)=16/5 
social studies
Is it A? 
Math (6th grade)
How do I find the answer to 234 divided by 89 + 53 x 72 
precalculus
show the correct notation for “The limit of x^2  1 as x approaches 3. 
precalculus
Show an example where For n odd, the sign of the yters differ: (+) for the first expansion, () for the second. (For n even, the signs are the same.) 
precalculus
Can you give an example as to how The expansion of (x + y)n and (x  y)n are different? 
precalculus
How is the expansion of (x + y)n different to the expansion of (x  y)n ? 
precalculus
How do you form the the rows of Pascal’s triangle? 
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 
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 
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 ... 
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 
precalculus
How would you describe a proof by mathematical induction? 
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... 
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... 
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 
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)&... 
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&... 
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 + + (3n2)=n/2(3n1) 1.When n=1, the formula is valid because (3*12)=1/2(3*11) (32)=1/2(31) 1=1/2(2) 1=1 A. You must show that 1+4+7+10... 
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&... 
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 ... 
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 ... 
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 ... 
precalculus
Find a quadratic model for the sequence. 4, 4, 3, 1, 2 
precalculus
find Pk + 1 if Pk=2K1/k! 
precalculus
Find a quadratic model for the sequence with the indicated terms. 3, 3, 5, 9, 15, 23, ... 
precalculus
Prove the inequality for the indicated integer values of n. n! > 2n, n ? 4 
precalculus
Find Pk + 1 for the given Pk. Pk = 1 + 6 + 11 + … + [5(k  1)  4] + (5k  4) 
American Government
1. B 2. D 3. A i just got 100% 
Problem solving
Place a counter over the children. Draw the counter. Dont not what im suppose to do though. 
Science PLEASE PLEASE HELP
thank you 
Science PLEASE PLEASE HELP
A then? 
Science PLEASE PLEASE HELP
Will someone please help? i'm being very impatient, i know! but i really need this to be turned in!!! 
Science PLEASE PLEASE HELP
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 
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 
social study's
B) the gradual end of the nomadic lifestyle 
LANGUAGE ARTS
yeah they change up some of the andwers but anonymous will give you the general idea 
Math PLEASE HELP!
Thanks!!!!