# Questions Asked onMarch 22, 2018

1. ## Math:)

A person is on the outer edge of a carousel with a radius of 20 feet that is rotating counterclockwise around a point that is centered at the origin. What is the exact value of the position of the rider after the carousel rotates 5pi/12 radians? a.

2. ## History

"With malice toward none, with charity for all...let us strive...to bind up the nation's wounds...to do all which may achieve a just and a lasting peace among ourselves and with all nations." - Abraham Lincoln, Second Inaugural Address Based on the lesson

3. ## Math:)

Prove csc(pi/2-x)=sec x. a. csc(pi/2-x)=1/sin(pi/2)cosx+cos(pi/2)cosx=sec x b. csc(pi/2-x)=1/sin(pi/2)sinx-cos(pi/2)cosx=sec x c. csc(pi/2-x)=1/sin(pi/2)sinx+cos(pi/2)cosx=sec x d. csc(pi/2-x)=1/sin(pi/2)cosx-cos(pi/2)sinx=sec x

4. ## Algebra

Which solid has one base that is a rectangle and four lateral surfaces that are triangles? A. triangular pyramid *** B. cone C. rectangular prism D. rectangular pyramid A solid with two parallel and congruent bases cannot be which of the following? A. cone

5. ## pre-calc

A Ferris wheel is 50 meters in diameter and boarded from a platform that is 4 meters above the ground. The six o'clock position on the Ferris wheel is level with the loading platform. The wheel completes 1 full revolution in 8 minutes. How many minutes of

6. ## Spanish

Countries of the Caribbean Basin generally share the same ______. A) traditions B) geography C) climate*** D) culture Please check my answer, thanks.

7. ## math

Lynne is 25 years old and starting an IRA (individual retirement account). She is going to invest \$150 at the beginning of each month. The account is expected to earn 5.5% interest, compounded monthly. How much money, rounded to the nearest dollar, will

8. ## chemistry

A vinegar contains acetic acid, CH3COOH. Titration of 5.000g of vinegar with 0.100, NaOH requires 33.0 ml to reach equivalent point. What is the weight percentage of CH3COOH in vinegar?

9. ## Spanish

Explain how to form the usted form of the imperative of the regular -ar verb hablar I know that -ar verbs end in e

10. ## Spanish

1. Mi madre insiste en que ____ en el aeropuerto a las 2. A) estabamos B) estemos C) estamos D) estar I'm confused between B and C because I don't know if I should use the indicative or subjunctive form. Please help. 2. Prohiben que los turistas les ____

11. ## History

1. What role did colonialism play in the setling of the Pacific Northwest

12. ## History

explain the purpose of reconstruction . Got a difference between Lincoln's plan and the plan implemented by the radical republicans. It knees 3-4 sentences .

13. ## History

Why did John Wilkes Booth assassinate President Lincoln? A. Booth thought Lincoln was too easy on Southerners. B. Booth had lost is a series of slavery debates with Lincoln. C. Booth was angry about the Confederate defeat. D. Booth was a Confederate

14. ## Algebra 1

Multiple choice 1.|x|+5=18 5 or -5 (a) 13 or -13(b) 18 or -18(c) 23 or -23(d) 2. |y+4|

15. ## algebra

A ball is thrown straight up from a rooftop 240 feet high. The formula below describes theÃ¢â‚¬â€¹ ball's height above theÃ¢â‚¬â€¹ ground, h, inÃ¢â‚¬â€¹ feet, t seconds after it was thrown. The ball misses the rooftop on its

16. ## Algebra

A carpenter is putting a skylight in a roof. If the roof measures 10x + 9 by 7x + 7 and the skylight measures x + 5 by 3x + 3, what is the area of the remaining roof after the skylight is built? A.) 67x^2 + 115x + 48** B.) 73x^2 + 151x + 78 C.) 70x^2 +

17. ## geometry

Find the missing value to the nearest hundredth sin ___=18/27 56.31 48.19**** 41.81 33.69 Please check my answer

PLEASE HELP 1.Create a diagram of the U.S banking system and the Federal Reserve System(FRS). Include special financial services of the banking system in your diagram. Be creative in this activity. Pretend you have been asked to teach the structure and

19. ## science

Multiple Choice 1. Which of Earth's spheres contains mountains, valleys, and other landscapes? (1 point) atmosphere biosphere geosphere hydrosphere 2. Which of the following are examples of destructive forces? (1 point) ice wind both ice and wind neither

20. ## history

in lincolns second inaugural adress he says with malice toward none with charity for all what does this quote reveal about lincolns attitude toward the south a. forgiveness b. hatred c. indifference d. envy

21. ## Physics

Suppose a block of mass of lead of mass 0.4kg at temperature 95°C is dropped in 2kg of water originally at 20°C in a container.calculate the final temperature if no heat is lost to the container and environment;

22. ## Math

The basketball court is 50 feet across by 94 feet long. There is a black line painted around the entire basketball court. What is the total area of the basketball court?

23. ## Chemistry

What is the percentage yield of N2O5 when 68.0g of O2 reacts With N2 according to the reaction equation, with 72.6g of N2O5 being obtained? 2N2 + 5O2 -> 2N2O5

24. ## Science

How does NASA's guest blogger support her claim that there are role models for communicating scientific information? (A) She names her own personal favorite resources for scientific information. (B) She lists several sources of scientific information that

25. ## Earth science

If a sample contains 50g of carbon 14 and 50g of nitrogen 14 , how many lives has it undergone ?

26. ## History

Describe how sharecropping worked. Provide details about how this helped or hurt the individual sharecroppers. if you could help THANK YOU!!!

27. ## chemistry

What volume of 10 percentage (mass/volume) solution of Na2CO3 will be required to neutralise 100mL of HCl sution containing 3.65g of HCl.

28. ## math

Donald is hiring employees for his new small business. He expects to produce 6 units per employee, and he expects demand to be at least 36 units per day. He plans to pay each employee a yearly salary of \$50,000 and has a budget of \$400,000 per year to pay

29. ## Physics

A transformer is to be used to provide power for a computer disk drive that needs 5.8 V (rms) instead of the 120 V (rms) from the wall outlet. The number of turns in the primary is 414, and it delivers 500 mA (the secondary current) at an output voltage of

30. ## Math

The first quarter of the championship game lasted 48 minutes. The second quarter lasted 52 minutes. There was a special presentation at halftime that lasted 25 minutes. The third quarter lasted 54 minutes and the fourth quarter lasted 49. If the game

31. ## Geometry

Given triangle KLM is CONGRUENT to triangle NOP, KL = 2y, LM= 6, KM = 8, NP = 2x-2y, and ON = X. Determine the measures of x and y. I drew out the two triangles and I know I’m gonna have to solve to get x and y but the two variables are confusing me so

32. ## Math

n harmonic means have been inserted between 1 and 4 such that first meant:last mean=1:3,find n.

33. ## Calculus

a stone is thrown into a pond creating ripples that are concentric circles. the rate of change of the radius of the circle is 3 ft/min. if the radius is 0 at the time=0, how fast is the area increasing after 4 minutes

34. ## physics

While running a race, Abigail’s heart was beating at 170 beats per minute. What was the period of her heartbeat?

35. ## Algebra 1

A tub can be filled in 15 minutes by the hot water faucet and in 12 minutes by the cold water faucet. The drain can empty the tub in 20 minutes. How long will it take the tub to fill if both of the faucets and the drain are open?

36. ## physics

If the period of an oscillator doubles, what happens to its frequency?

37. ## physics

A mass m = 88 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 15.5 m and finally a flat straight section at the same height as the center of the loop (15.5 m off the ground). Since the mass would not make it

38. ## Math

the expression below, each letter represents a different digit from 1 to 9. What are the three fractions? ( A/DE)+(B/FG)+(C/HI)=1

39. ## Math

Sixteen teams are playing in a basketball tournament. Each team will play one game against another team during the first round of the tournament. There is only one gym, so only one game can be played at a time. They have 6 hours to complete the first

40. ## Geometry

The problem is, triangle ABC is an isosceles triangle where

41. ## physics

A mass m = 88 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 15.5 m and finally a flat straight section at the same height as the center of the loop (15.5 m off the ground). Since the mass would not make it

42. ## Chemistry

What is the relation between pH and pOH? Is the relation positive, negative or neutral?

A borrower is repaying a loan with payments of \$3000 at the end of every year over an unknown period of time. If the amount of interest in the third instalment is \$2000, find the amount of principal in the sixth instalment. Assume that interest is 10%

44. ## physics

A Foucault pendulum is observed to swing back-and-forth once every 20 seconds. What is its frequency?

45. ## Math

Which is NOT a function? A y – x = 6 B y = 2x C x = -2 D y + x = 12 I don't understand what a function is, and my answer choice is D, if I'm wrong, please help

46. ## physics

The 3.0 cm -diameter water line in the figure splits into two 1.0 cm -diameter pipes. All pipes are circular and at the same elevation. At point A, the water speed is 2.0 m/s and the gauge pressure is 50 kPa. What is the gauge pressure at point B?

47. ## physics 2

the primary coil of a transformer has N1 = 375 turns, and its secondary coil has N2 = 1,875 turns. If the input voltage across the primary coil is Δv = (120 V)sin ωt, what rms voltage is developed across the secondary coil?

48. ## English

1.The bluffs are so steep that they _____ be scaled, even by experienced climbers. a. can't hardly b. can hardly B 2. Boats carefully thread their way _____ the tricky and sometimes dangerous rocks and rapids in the Buffalo River. a. among b. between B

49. ## harmonic motion

A nervous student taps his foot seven times every 2 seconds. What is the frequency of his tapping?

50. ## English

1.We had to travel several miles _____ into the Arkansas Ozarks to locate the Buffalo River. a. further b. farther A 2._____ this river is only 130 miles long, many people are surprised that it has been designated the first national river in the United

51. ## Calculus

What is the equation of the line which passes through the point (6,4) and is parallel to the line with the parametric equations x=5t+4 and y=t-7? I think the answer is y = 1/5x + 14/5.

52. ## Science

How are xylem and phloem tissue 1) The same? 2) Different

53. ## Calculus

Find the equation of the line that is tangent to the curve x(t) = t^2+1 and y(t)=t^3-1 at the point (5,7). I get a slope of 7.5.

54. ## structure programming

the gross salary of five employees in maendeleo books enterprise is based on basic salary and additional benefits as follows: a).employees who have worked for the company for more than 10 years receive an additional pay of 10%to their basic salary.

55. ## physics

An AC voltage of the form Δv = (65.0 V)sin(340t) is applied to a series RLC circuit. If R = 46.0Ω, C = 27.0 μF, and L = 0.300 H, find the following. (a) impedance of the circuit Ω (b) rms current in the circuit A (c) average power delivered to the

56. ## Math

I need urgent help with these 3 math problems 1. Margaret painted a mural for St. Patrick’s Day and mixed her own green paint. She mixed 3 parts yellow paint with 2 parts blue paint to create green paint. Maureen wanted to also paint a mural with the

57. ## Maths

Experiments show that the concentration of substance X in a ﬁrst order chemical reaction at future time (in seconds) t i.e. [X] is described by the following diﬀerential equation: d[X]/ dt= .001[X], ﬁnd: (a) Find an expression for the concentration

58. ## english

Why is it important to connect across generations?

59. ## algebra

does y vary directly with x? if it does, write an equation for the direct variation. x = 10, 16, 20 y= 15, 24, 30 I need help pls I don't understand.

60. ## Algebra 1

Leah biked down a 12-km mountain road four times as fast as she peddled up the road. If Leah made the round trip up and down the road in 1 hour and 15 minutes, what was her average speed riding downhill?

61. ## Math

Sixteen teams are playing in a basketball tournament. Each team will play one game against another team during the first round of the tournament. There is only one gym, so only one game can be played at a time. They have 6 hours to complete the first

62. ## chemistry lab

what is the number of moles of a 0.05 M KMnO4 solution that react with 20 ml of a 0.02 M solution of FeCl2 if 75 ml of KMnO4 was required

63. ## geography

does the amazon river have a delta? I think it doesn't because I read that it goes straight into the ocean, therefore having no delta. Other sources say there is a delta? what is correct

65. ## Differential Equations

I don't understand how to solve this. I can solve the left side and get yc, but I have no idea how to solve for the right side. y''-3y'+2y=(e^2t)/(e^t+1)

66. ## math

"Determine the point of intersection of each pair of equations by plotting accurate graphs." This question asks to 'determine' the point of intersection by plotting accurate graphs. I'm not sure how one is supposed to be able to 'determine' the point of

67. ## Continuity equations

I have the continuity equation as shown here: imgur(dot)com/NRfMphl(dot)jpg I need to find (deduce) this same equations with several considerations: -Assuming taht E is very small and working with minority -Assuming steady state conditions -Assuming low

asked by Continuity Equations - AEC
68. ## Social Studies help please!!

Explain why polk was able to win the presidency. What did he campaign in support of? I mean i did the first question the explain how he was able to win the presidency but i don't understand the second question? Can someone help me please?

69. ## Science

Explain how xykem tubes help support a plant.

70. ## Science

What happens at the root tip?