sally

Newest questions and responses by sally
  1. social studies

    1. What sequence of steps did the Spanish follow to establish colonies in America? A. (1) settled towns, (2) formed alliances with native Americans, (3) bought land B. (1) took over territory, (2) settled towns, (3) set up governments C. (1) formed

    asked on November 16, 2018
  2. astronomy

    "super earths" are known to have similar densities and compositions to earth but they have a mass 2-10x greater than earth. If one of these super earth's had a mass 5x the mass of earth what would be the super earth's radius ? a) 1.7x earth's radius b)

    asked on October 27, 2018
  3. Math

    If the average of five consecutive whole numbers is 18, what is the smallest number?

    asked on October 26, 2018
  4. Math

    If the points (4,2) and )-1, k) are on a line that is perpendicular to the line y=2x+1, what is the value of k?

    asked on October 26, 2018
  5. SSAT

    A small cube has a length of 2 inches. How many small cubes are needed to make a larger cube whose base has a perimeter of 32 inches?

    asked on October 26, 2018
  6. Biology

    Did the ancestral eukaryotic cell with its nucleus and other organelles evolve first and then some eukaryotes got mitochondria or did the ancestral eukaryotic cell have mitochondria, according to SET?

    asked on September 29, 2018
  7. Biology

    A. Mitochondria and chloroplasts are similar to bacteria in size. B. Mitochondria and chloroplasts reproduce by dividing, similar to bacteria. Explain how these two options above are supported by Lynn Margulis SET as opposed to Taylor's theory of autogeny.

    asked on September 29, 2018
  8. Philosphy (LOGIC)

    Given that A1, ... An are completely incompatible hypotheses, from the fact that the conditional probability of A1 given evidence E is greater than the conditional probability of any other Ai given E, we can infer that: A. The argument A1; therefore E is

    asked on September 19, 2018
  9. Biology

    What kind of chemical bond is involved in forming the primary structure of a protein? What type of bond is a peptide bond?

    asked on September 19, 2018
  10. Biology

    Can someone please explain to me the biological definition of what alternative hypotheses is? I've looked through the paragraphs in my textbook, however, I still can't seem to arrive at a clear understanding of what the definition is.

    asked on September 4, 2018
  11. Math

    First round to the nearest whole number. 9.86 x 9.13 Use compatible numbers to estimate each quotient. 32.2 divided by 7.56

    asked on August 24, 2018
  12. 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,

    asked on May 20, 2018
  13. 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

    asked on May 8, 2018
  14. 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

    asked on April 24, 2018
  15. 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

    asked on April 17, 2018
  16. 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

    asked on April 17, 2018
  17. 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

    asked on April 12, 2018
  18. 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 ion, and

    asked on April 5, 2018
  19. 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?

    asked on April 3, 2018
  20. 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

    asked on February 12, 2018
  21. 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)?

    asked on January 29, 2018
  22. 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)?

    asked on January 29, 2018
  23. 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:

    asked on December 13, 2017
  24. 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

    asked on November 21, 2017
  25. 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

    asked on November 21, 2017
  26. 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?

    asked on October 19, 2017
  27. 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?

    asked on September 9, 2017
  28. Math

    What are the least common multiples of 8 and 12?

    asked on September 9, 2017
  29. 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?

    asked on August 28, 2017
  30. Geography

    In southwest asia most people live?

    asked on June 6, 2017
  31. social studies

    What role did yellow journalists play in the Spanish American War?

    asked on May 22, 2017
  32. 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

    asked on April 14, 2017
  33. 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

    asked on April 14, 2017
  34. 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

    asked on April 13, 2017
  35. 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

    asked on April 12, 2017
  36. 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.

    asked on April 12, 2017
  37. 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

    asked on March 28, 2017
  38. 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

    asked on March 18, 2017
  39. Math

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

    asked on March 18, 2017
  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

    asked on March 18, 2017
  41. 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

    asked on March 6, 2017
  42. 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

    asked on March 6, 2017
  43. math

    When sixty-five and fourteen hundredths is subtracted from eighty and forty-eight hundredths, what is the difference?

    asked on March 6, 2017
  44. alegbra

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

    asked on January 30, 2017
  45. Algebra

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

    asked on January 30, 2017
  46. algebra

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

    asked on January 30, 2017
  47. trig

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

    asked on January 24, 2017
  48. 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.

    asked on January 24, 2017
  49. Trig

    4=5+cos(theta)

    asked on January 24, 2017
  50. Trig

    Thank you Steve for all your help.

    asked on January 24, 2017
  51. Trig

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

    asked on January 24, 2017
  52. Math (6th grade)

    How do I find the answer to 234 divided by 89 + 53 x 72

    asked on January 12, 2017
  53. precalculus

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

    asked on December 21, 2016
  54. 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.)

    asked on December 17, 2016
  55. precalculus

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

    asked on December 17, 2016
  56. precalculus

    How is the expansion of (x + y)n different to the expansion of (x - y)n ?

    asked on December 17, 2016
  57. precalculus

    How do you form the the rows of Pascal’s triangle?

    asked on December 17, 2016
  58. 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

    asked on December 16, 2016
  59. 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

    asked on December 16, 2016
  60. 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

    asked on December 16, 2016
  61. 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

    asked on December 16, 2016
  62. precalculus

    How would you describe a proof by mathematical induction?

    asked on December 16, 2016
  63. 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

    asked on December 15, 2016
  64. 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)

    asked on December 15, 2016
  65. 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

    asked on December 15, 2016
  66. 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)

    asked on December 15, 2016
  67. 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

    asked on December 15, 2016
  68. 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

    asked on December 15, 2016
  69. 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

    asked on December 15, 2016
  70. 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.

    asked on December 15, 2016
  71. 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)

    asked on December 15, 2016
  72. precalculus

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

    asked on December 14, 2016
  73. precalculus

    find Pk + 1 if Pk=2K-1/k!

    asked on December 14, 2016
  74. precalculus

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

    asked on December 14, 2016
  75. precalculus

    Prove the inequality for the indicated integer values of n. n! > 2n, n ≥ 4

    asked on December 14, 2016
  76. precalculus

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

    asked on December 14, 2016
  77. Problem solving

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

    asked on November 10, 2016
  78. 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

    asked on November 8, 2016
  79. 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

    asked on November 2, 2016
  80. Math PLEASE HELP!

    4^2-(2•2^4) i got -16 if i'm wrong please explain. i also got -240 doing it a different way, PLEASE help!

    asked on October 20, 2016
  81. Algebra 2

    Describe the graph of y=1/2x-10 -3 compared to the graph of y=1/x

    asked on October 17, 2016
  82. Algebra2

    Does the relation in the table represent direct variation inverse variation or neither? If it is a direct or inverse variation, write an equation to represent the relation. (x,y) (5,2) (10,1) (15,2/3) (20,1/2)

    asked on October 17, 2016
  83. Physics

    A 54100 kg space ship has completed two thirds of its journey from the earth to the Moon. At this position, what magnitude force would the ship's engines have to supply to be the equilibrant? Assume the mass of the moon is 7.35E + 22 kg and the distance

    asked on October 11, 2016
  84. Math

    [(8^2 - 4) - 6] / 6 = ?? i think it's 59?? idk what the brackets mean. can someone PLEASE explain this to me???

    asked on October 3, 2016
  85. physics

    A bullet leaves a rifle with a muzzle velocity of 553 m/s. While accelerating through the barrel of the rifle, the bullet moves a distance of 0.648 m. Determine the acceleration of the bullet (assume a uniform acceleration).

    asked on September 23, 2016
  86. math

    a lighthouse is 30m high. the angle of elevation from a ship to the top of the tower is 17 degrees. what is the horizontal distance from the ship to the lighthouse?

    asked on September 21, 2016
  87. Pre cal

    Fine a third degree polynomial function f(x) with real coefficients that has 4 and 2i are zeros and such that f(-1) =-50 4 21 -2i (x-4)(x-2i)(x+2i) (x-4)(x2+4) x3-16+4x-4x2 (x3-4x2+4x-16) -50=a(-1-4-4-16) -50=.25 a=2 Not understanding, please help

    asked on September 4, 2016
  88. algebra

    The area of a rectangle is 72 cm². The length. l, of the rectangle is 6 cm longer than the width, w. What is the width of the rectangle? 10 cm 8 cm 6 cm 2 cm

    asked on August 26, 2016
  89. math

    What is x on a 45,45,90 triangle if the hypotenuse is 145?

    asked on August 24, 2016
  90. physics

    An infinitely-long wire with resistivity 2.0*10^-8 ohm*m initially has 1.5 A of "conduction" current flowing through it. When the emf connected to the wire is turned off, this current stops in time of .6ns. Estimate the amount of displacement current

    asked on July 20, 2016
  91. Physics

    An infinitely long, solid insulating cylinder with radius a has positive charge uniformly distributed throughout it with a constant charge per unit volume p. a) using Gauss's law, derive the expression for the electric field inside the cylinder ra c)

    asked on June 16, 2016
  92. ALGEBRA

    Create a rational function with a linear binomial in both the numerator and denominator. Part 1. Graph your function using technology. Include the horizontal and vertical asymptotes and the x- and y-intercepts on your graph. Label the asymptotes and

    asked on June 10, 2016
  93. Algebra

    Create a system of equations that includes one linear equation and one quadratic equation. Part 1. Show all work to solving your system of equations algebraically. Part 2. Graph your system of equations, and show the solution graphically to verify your

    asked on June 9, 2016
  94. Algebra

    Scores on a statewide standardized test are normally distributed with a mean of 12.89 and a standard deviation of 1.95. Certificates are given to students whose scores are in the top 2% of those who took the test. This means that they scored better than

    asked on June 9, 2016
  95. History please help!

    Who were the first four caliphs? A)rulers who had a personal connection to Muhammad. B) a group of wealthy traders C) five gods D) missionaries to Africa I pick A. Please help!

    asked on May 26, 2016
  96. Walk Two Moons

    Has anyone read the story walk two moons? If so, please help. where does Sal BEGIN to realize that her mother is really not returning? A) Lake Michigan B) Madison Wisconsin C) Pipestone Minnesota *** D) Sioux Falls, South Dakota please help, I've read the

    asked on May 14, 2016
  97. History

    In the Eastern Orthodox Chrurch icons were once forbidden by the Pope true ** false check my answers please.

    asked on May 10, 2016
  98. History

    In the Byzantine Empire, the emperor A) controlled the church** B) took orders from people C) obeyed church leaders D) always helped defend Italy Ugh please help!

    asked on May 10, 2016
  99. History

    The Pope is the leader of A) The Roman Catholic Church*** B) the Greek Orthodox Church C) the Roman gods D) the Protestants help please?

    asked on May 10, 2016
  100. Math (please help)

    Maria wants to cover the box shown below with paper.Which of the following could be the dimensions of the paper so that Maria has enough to cover the box, including the ends, with a little left over? Shape: Rectangular Prism Length:8 in Width: 2 in Height:

    asked on May 10, 2016

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