# Questions Asked onJanuary 26, 2018

1. ## History

Which of the following conclusions about the freedman's bureau is best supported by the illustration? A. It's assisted only african americans B. it employed only women C. it provided education to people of all ages** D. its students passed the literacy

2. ## AP Calculus AB Part 2

The Riemann sum, the limit as the maximum of delta x sub i goes to infinity of the summation from i equals 1 to n of f of the quantity x star sub i times delta x sub i , is equivalent to the limit as n goes to infinity of the summation from i equals 1 to n

3. ## Calculus help

A car travels along a straight road for 30 seconds starting at time t = 0. Its acceleration in ft/sec2 is given by the linear graph below for the time interval [0, 30]. At t = 0, the velocity of the car is 0 and its position is 10. What is the total

4. ## Alegbra 2

Use the rational root theorem to list all possible rational roots for the equation. X^3+2x-9=0. Use the rational root theorem to list all possible rational roots for the equation. 3X^3+9x-6=0. A polynomial function P(x) with rational coefficients has the

5. ## Educational Technology and Online Learning 7

Which of the following cannot be copyrighted? books inventions videos music I think it's inventions! Am I right?

6. ## physical scince

Imagine two billiard balls on a pool table. Ball A has a mass of 7 kilograms and ball B has a mass of 2 kilograms. The initial velocity of the ball A is 6 meters per second to the right, and the initial velocity of the ball B is 12 meters per second to the

7. ## Math

Which of the following values best approximates of the length of c in triangle ABC where c = 90(degrees), b = 12, and B = 15(degrees)? c = 3.1058 c = 12.4233 c = 44.7846 c = 46.3644 In triangle ABC, find b, to the nearest degree, given a = 7, b = 10, and C

8. ## Chemistry (mol)

How many mol of NaHCO3 are in a 454 g box of baking soda (NaHCO3)? A. 3.81 x 10^4 mol NaHCO3 B. 1.85 x 10^–1 mol NaHCO3 C. 5.40 x 10^0 mol NaHCO3 D. 6.33 x 10^–20 mol NaHCO3 I tried doing the calculations and a came the closest but it wasn't exact...

9. ## Spanish

Which neighborhood of Buenos Aires houses the Argentinean Puppet Museum? A.Barrio Boedo B.San Telmo C.Barrio Norte*** Help Me, please!!

10. ## Maths

The 14th term of an A.P is 96,while 25th term is 173 find the ,19th term,sum of 13th and 56th terms,product of 6th and 13th terms.

Flint is purchasing a home for $115,750 and is financing 85% of it. The documentary stamp tax on the deed in his state is$0.70 per $100 portion thereof. How much will he pay for the documentary stamp tax? a.$1405.54 b.$1653.57 c.688.71 d.810.25 My answer asked by Steve 12. ## Social Studies Why was President Lincoln unable to persuade Congress to accept his Reconstruction plan? A. asked by Cole 13. ## math Claudia wants to test if the binomial 3x−6 is a factor of P(x)=3x^3−9x^2+9x−6. First, she evaluates P(_[blank 1]_). After simplifying correctly, she is left with a remainder of _[blank 2]_. Based on the remainder, she correctly concludes that 3x−6 asked by kayla 14. ## use exactly 100 letters to write a sentence or two ? asked by bob 15. ## math You are making costumes for the school play. Each costume needs a piece of ribbon that is 5858 yard long. How many yards of ribbon are needed for the 2424 costumes? asked by sam 16. ## physic A firecracker explodes into four equal pieces (see figure below). Given the magnitude and direction of the velocity for each piece and the coordinate system shown, determine the x and y velocity components for each piece of the firecracker. (Assume the asked by joy 17. ## Chemistry Some solid CaO in a test tube picks up water vapor from the surroundings to change completely to Ca(OH). An observed total initial weight (CaO + test tube) of 10.860 g goes eventually to 11.149 g. What is the weight of the test tube? asked by Brandon 18. ## Chemistry 1. Calculate the delta H for H2(g)+O2(g)=H2O2(g) Bond energies, kJ x mol^-1 H-H 432 H-O 459 O-O 207 O=O 494 I did: deltaH=(2(207kJ/mol))-(432kJ/mol+494kJ/mol) =-512kJ is that correct? 2. The theoretical effect of an increase in T can be explained in terms asked by Anonymous 19. ## Chemistry! Please Help ! How many mol of xenon hexafluoride are produced from 4.01 x 10^2 mol of fluorine (F2)? Xe + 3F2 -> XeF6 A. 1.79 x 10^1 mol XeF6 B. 2.41 x 10^26 mol XeF6 C. 1.20 x 10^3 mol XeF6 D. 1.34 x 10^2 mol XeF6 Please help ! asked by Michael 20. ## calculus Find a point c satisfying the conclusion of the Mean Value Theorem for the following function and interval. f(x)=x^{- {6}}, \qquad[1, 2] c = asked by sze 21. ## algebra Part A: Graph the system of linear equations. Part B: Use the graph created in Part A to determine the solution to the system. Part C: Algebraically verify the solution from a Part B x + 6y = 6 y = 1/3x - 2 asked by Anonymous 22. ## Calculus help Lim(x>inf)=2000x^4/200x^4= 10 asked by Rich boi 23. ## Science Why do we store silver chloride in dark coloured bottles? asked by Srijan 24. ## math Consider the graph of f(x) as shown. Graph of f of x. The curve approaches infinity as x approaches negative infinity, then passes through the point (-3.45, 0), turns at about (-3.05, -2.03), passes through (-2.51, 0), then turns again at (-1.39, 4.62), asked by kayla 25. ## Math Becca is financing a house for$125,250. She has to pay $425 plus 1.25% for a brokerage fee. How much are the mortgage brokerage fees?$1,990.63 $3,556.25$581.56 $1,565.63 My answer is a asked by Steve 26. ## Algebra In the old days there were elevator operators to transport passengers. Don Downs always started his day in the basement. He went up 20 floors to take his boss some coffee. Then he went down 8 floors to take a donut to his friend. He went up 7 floors to asked by samay 27. ## Math A rectangular table is twice as long as it is wide. What is the perimeter of a table if it measures 1.5ft by 3ft ? asked by Jenna 28. ## math The cost cc (in dollars) for the fuel and maintenance of a go-cart is given by c=10x+1200c=10x+1200, where xx is the number of rides. It costs$40 per ride. How many rides does it take to break even?

write a general rule for transformations in the plane that produce similar figures

30. ## Geography

If you are stranded at the North Pole what direction would you go to North America?

31. ## Algerbra

The athletic department just received a shipment of footballs and basketballs. You don’t know how many there are, and don’t feel like counting. Here’s what you do know: each football costs 12 dollars, each basketball costs 15 dollars, and the credit

32. ## Chemistry

3O2 -> 2O3 When 4.26 x 10^16 mol of oxygen (O) are converted into ozone, how many mol of the pollutant (O3) are formed? A. 2.84 x 10^16 mol O2 B. 6.39 x 10^6 mol O2 C. 2.84 x 10^1 mol O2 D. 2.84 x 10^16 mol O2 D?

33. ## University Genetics

In cats fur colour can be black, orange or tortoise (patched orange and black). A mating between two cats produces the kittens indicated below. P: tortoise female X orange male F1: orange females tortoise females black males orange males What are the

34. ## calculus

Let f'''(t) = 5 t + 10 \sqrt{t}. (a) Find the most general formula for f''(t). If an arbitrary constant must be used here, use an upper-case "C". f''(t) = (b) Based on your answer to (a), find the most general formula for f'(t). If another new arbitrary

35. ## Chemistry again

How many mol of nitrogen monoxide gas (N2) are in a 1.49 L container at standard temperature and pressure? A. 2.14 x 10–24 mol N2 B. 2.89 x 101 mol N2 C. 8.97 x 1023 mol N2 D. 6.65 x 10–2 mol N2 Apparently my last question didnt make sense so i'm

36. ## calculus

Consider the function f(x) = 2 x^3 - 12 x^2 - 30 x+ 10 on the interval [ -6 , 8 ]. Find the average or mean slope of the function on this interval. Average slope = By the Mean Value Theorem, we know there exists at least one c in the open interval ( -6 , 8

37. ## PAVCS

How many moles of gas are in a 20 liter scuba canister is 300k and pressure is 200 atm

38. ## Math

Two sets of the same number and eight are added to five times the same number

39. ## Physics

When sugar is poured from the box into a bowl , the rubbing of the sugar grains create a static charge that repels the grains , and causes the sugar to go flying out in all directions. If each of two grains acquires a charge of 3.0x10^-11 C at a separation

40. ## Math: quadratic function and equation

Given the quadratic function y=x^2-x+k-1 and line y=x+1, find the number of points that their graphs have in common. (Assume k>4)

41. ## Pharmacy math

A patient needs a total dose of 50 grams of albumin. The pharmacy has 50ml bottles of Albumin 25% in stock. How many bottles should pharmacy tech prepare to provide required dose? A.1 bottles B.2 bottles C.3 bottles D.4 bottles

42. ## calculus

Consider the function f(x) = 1/x on the interval [ 4 , 11 ]. (A) Find the average or mean slope of the function on this interval. Average Slope =_______ (B) By the Mean Value Theorem, we know there exists a c in the open interval ( 4 , 11 ) such that f'(

43. ## Math

Exercise 30: Velocities have both direction and magnitude and thus are vectors. The magnitude of a velocity vector is called speed. Suppose that a wind is blowing from the direction N45◦W at a speed of 40 km/h. (This means that the direction from which

44. ## Math

Evaluate 2/3 x for x=3/4 Hi, I don't know what they are asking me, can anyone help?

45. ## math

You and your friend are selling tickets to a charity event. You sell 4 adult tickets and 11 student tickets for $148. Your friend sells 7 adult tickets and 5 student tickets for$145. What is the cost of a student ticket? \$

46. ## physic

he magnitudes are F1 = 1.81f,F2 = f,and F3 = 2.00f,where f is a constant. (a) Use the coordinate system shown in the figure above to find R = F1 + F2 + F3 in component form in terms of f. (b) If x = 0.25, what is Ry?

47. ## science

As you look out of your fourth floor dorm window.a flower pot suddenly falls past.The flower pot originally on a window still above passes your 2.0 m high window in 0.093s.The distance between floors in the dorm is 4.0m.From a window on which floor did the

48. ## calculus

Consider the function f(x) = 3 -2 x^2 on the interval [ -5 , 3 ]. (A) Find the average or mean slope of the function on this interval, i.e. \displaystyle{\frac { f(3) - f(-5) }{ 3 - (-5) } = } 4 (B) By the Mean Value Theorem, we know there exists a c in

49. ## calculus

Consider the function f(x) = 1/x on the interval [ 4 , 11 ]. (A) Find the average or mean slope of the function on this interval. Average Slope = (B) By the Mean Value Theorem, we know there exists a c in the open interval ( 4 , 11 ) such that f'( c) is

50. ## Calculus

If the area under the curve of f(x) = 25 - x^2 from x = -4 to x = 0 is estimated using four approximating rectangles and left endpoints, will the estimate be an underestimate or overestimate? 1) Underestimate 2) Overestimate 3) The area will be exact

How many particles are in 9.22 x 10^–37 mol of iron(III) oxide (Fe2O3)? A. 5.54 x 10^12 mol Fe2O3 B. 1.60 x 10^23 mol Fe2O3 C. 1.47 x 10^–23 mol Fe2O3 D. 5.55 x 10^–13 mol Fe2O3 I think it is C?

52. ## Math

For a class gardening project, 1/8 of Mrs. Jensen's students planted marigolds and 1/2 planted tulips. What fraction of the class planted either marigolds or tulips?

53. ## physic

Three vectors A,B,and C are related to one another such that 5A + 6B = 60C. A fourth vector D exists such that 30C + D = A. Determine an expression for D in terms of the vectors A and B.

54. ## physics question

A sphere with a mass of 2kg and a net charge -8 C is released from rest at the bottom of the electric field E. The sphere accelerates upward and travels 4m in 4s. Find the magnitude of the electric field. Use g = 10 m/s2. I am using m= 2kg, q= -8C, yf= 4m,

55. ## calculus

Consider the function f(x) = x^3-3x^2+2x-18 on the interval [ 0 , 2 ]. Verify that this function satisfies the three hypotheses of Rolle's Theorem on the inverval: f(x) is ___on[0,2] f(x) is ___ on (0,2) and f(0)=f(2)=____ then by rolle's theorem, there

56. ## Inflection and concavity

Consider the function f(x) = 2 x + 3 x ^ { -1 }. Note that this function has no inflection points, but f''(x) is undefined at x=B where B= 6/x^3(my answer) For each of the following intervals, tell whether f(x) is concave up (type in CU) or concave down

57. ## Social Studies

Progressives like La Follette wanted voters to participate more directly in goverment. Since Andrew Jackson's time, party leaders had picked candidates for local and state offices. Progressives called, instead, for primaries. In a primary, Votes choose

58. ## Chemistry

Why is an alpha particle written as a helium (He) nucleus? A. An alpha particle has two protons and two neutrons; it is essentially the nucleus of a helium atom. B. Helium is a common element that is often present in small forms; the alpha particle was

59. ## Chemistry

How many g are in 6.35 x 10^31 particles of nickel (Ni) if nickel’s molar mass is 58.693 g/mol? A. 1.08 x 10^30 g Ni B. 6.51 x 10^53 g Ni C. 1.80 x 10^6 g Ni D. 6.19 x 10^9 g Ni

60. ## Chemistry

difference between percent difference and percent error?

61. ## Algerbra

One supplementary angle is 5 times greater than the other. What is the measure of the larger angle?

62. ## English

1. In grade seven, what did he become? 2. In grade seven, what did he become of his school? 3. He became the captain of his school. [#3 is the answer either #1 or #2. Are both answers correct? Which one is the better of the two?]

In the newspaper one day you read that highest tides of the season are expected in the next month. What can you infer about the positions of the sun, earth, and moon? what phase of the moon will probably be visible?

64. ## combining like terms

The length of a rectangle is 4.5 units longer than the width,w. Find the perimeter of the rectangle

65. ## physic

Vector B has a magnitude of 21.50. Its direction measured counterclockwise from the x axis is 125.0°. Find its vector components. (Assume that the +x axis is to the right and the +y axis is up along the page. Also, assume B is in the x-y plane.)

66. ## algebra 2

A car is traveling at 40 mph. The radius of its wheels are 14 inches. How many revolutions per minute? Please show work. I don't understand this.

67. ## math

For the following regular polygons, find the following, round to the nearest tenth, if necessary. 1. 24-gon 2. 30-gon 3. Polygon with 40 sides

68. ## algebra 2

what is the description of the end behavior of f(x)=x^3+5x^2−14x? Please help I have a hard time grasping this

69. ## Math

A tailor made 48 pieces of uniform. Half of the number of the uniforms was each made using 1 1⁄4 meters of material. A quarter of the remainder was each made using 1 1⁄2 meters of material and the rest was each made using 1 3⁄4 meters of material.

70. ## physic

Vector Fis proportional to vector A such that F = mA and m is a scalar. (a) If A = 2.0i + 5.2j and F = 10.0i + 26.0j,what is m?

71. ## calculus

Find the point on the line 3 x + 2 y - 5 =0 which is closest to the point (4,5).

72. ## University Genetics part 2

In class we discussed autosomal polymorphisms such as widow’s peak and detached ear lobes, both of which are dominant traits. Suppose that a man with a widow’s peak and attached ear lobes (whose father had detached ear lobes) marries a woman without a

73. ## Math

Sorry for the repost, there was a mistake with the bracketing in the last one. Write (4/27)(2^((3+m)/3)+2^(m/3))^3 as a power of 2, show your work.

74. ## calculus

Consider the function f(x) = 3-3 x^{2/3} on the interval [ -1 , 1 ]. Which of the three hypotheses of Rolle's Theorem fails for this function on the inverval? (a) f(x) is continuous on [-1,1]. (b) f(x) is differentiable on (-1,1). (c) f(-1)=f(1). Answer:(

75. ## English

1. When I was thirteen, I read a story of a man like me. 2. When I was thirteen, I read a story of a man like myself. [Which one is right? are both okay? Can we use 'myself' as in #2?]

76. ## physic

How do I find the magnitude of the displacement between the two points. It start at point(0,2.024) and end at point(19.26,1.210)

77. ## geography

What is the capital of the country that possess the Canary Islands off the coast of Africa?

78. ## math

A sample of 50 students was surveyed on whether they owned an iPod or a mobile phone. The results showed that 38 per cent of the students owned both. Sixty per cent of the students owned a mobile phone, and there were four students who had an iPod only.

79. ## science

A frog’s intestine absorbs toxins, such as venom in insects, along with nutrient s. The liver then filters these toxins out. Why is this filtering so important?

80. ## HELP HELp

What can I do to successfully complete a selective Enrollment test? I haven't studied and the test tomorrow.

81. ## physic

What is the magnitude of the displacement between the initial and final points