# Questions Asked onApril 3, 2020

1. ## Chemistry

Consider the reaction H2(g) + I2(g) ---- 2HI(g). What is the reaction quotient, Q, for this system when [H2] = 0.100 M, [I2] = 0.200 M, and [HI] = 3.50 M? The choices are; 87.5 175 350 613 I dont believe it is 87.5 or 613

2. ## Algebra

The box-and-whisker plot shows the average temperatures in Orlando, Florida in January. Numbers for the box&whisker: 51,54,57,60,63,66,69,72,75,78,81,84 You can do a box&whisker here: alcula box plot Which statement about the temperatures in Orlando must

3. ## material sciences

The energy-separation curve for two atoms, a distance, r, apart is: U(r)=−Arm+Brn 1) Derive an expression for the equilibrium spacing, r0, as a function of A, B, m, and n. Explicitly indicate multiplication with a * symbol. r0 = ?? 2) Derive and

4. ## math

What is the period of the function f(x)=-6\sin(3\pi x+4)-2f(x)=−6sin(3πx+4)−2f, left parenthesis, x, right parenthesis, equals, minus, 6, sine, left parenthesis, 3, pi, x, plus, 4, right parenthesis, minus, 2?

5. ## Physics

A proton is accelerated from rest through a 5.70-V potential difference. (a) What is the proton's speed after it has been accelerated? (b) What is the maximum magnetic field that this proton produces at a point that is 4.00 m from the proton? (Enter the

6. ## Literature

Which statement about poetry is accurate

7. ## Math

Using a ruler and a pair of compasses only (I) construct a triangle XYZ such that XY =8cm and angle YXZ =ANGLE ZYX =45 DEGREES . Locate a point P In the triangle equidistant from XY AND XZ AND YX AND YZ . Construct a circle touching the three sides of the

8. ## Statistics

An experiment was designed to test a hypothesis that stated that high-drive subjects would be able to learn a simple task much more quickly than would low-drive subjects. The hypothesis further state that on a difficult task the opposite would be found –

9. ## algebra

There will be 3 floats in a parade. The parade organizers are trying to determine the order in which the floats should appear. How many different orders are possible?

10. ## algebra

A rocket is launched from atop a 76-foot cliff with an initial velocity of 107 ft/s. The height of the rocket above the ground at time t is given by . A) When will the rocket hit the ground after it is launched? Round to the nearest tenth of a second.

11. ## US History

read the passage and answer the question below. “They expressed their great satisfaction, saying that no greater good could come to them than to have our friendship, and that they desired to live in peace with their enemies, and that we should dwell in

12. ## math

kinyua spent 1/4 of his net January on school fees

13. ## social studies

Which of the following explains the importance of the Siberian area to Russia today? A. Siberian tigers have become a protected species there. B. The Kremlin is located there. C. There are vast deposits of oil, natural gas, and minerals there. D. Siberia

14. ## Trigonometry

How could you evaluate tan (13pi/12) if you did not know the sum and difference formula for tangent? Would you use the sin and cos sum and difference formulas, and if so, can someone walk me through it? Thank you!!!

15. ## Algebra

Answers to Connections Academy 7B (7th grade semester 2) Unit 4 Lesson 12: Graphing in the Coordinate Plane Unit Test.

16. ## English

1. I have many books. 2. I have a lot of books. 3. Do you have many books? 4. Do you have a lot of books? 5. I don't have many books. 6. I don't have a lot of books. ----------------------------- Are they all grammatical? Which one is ungrammatical?

17. ## science

Is the universe finite or infinite? What is the universe made of?

18. ## Math

Evaluate 4x for each value of x. In simplest form. X=1/4.

19. ## Social studies

Use the quote below to answer the question: Why did the Dred Scott v. Sandford decision anger Northerners? Frederick Douglass, Collected Speeches, 1857 "This infamous decision maintains that slaves...are property in the same sense that horses, sheep and

20. ## chemistry

Calculate the total amount of heat released in units of kilojoules when 25.8 g of ethanol vapor (C2H5OH) at 92.0◦C is cooled to -10.0◦ C. The molar heat capacities of ethanol vapor and liquid ethanol are 65.6 J/◦C.mol and 112.3 J/◦C.mol. The

21. ## Science

requirements and constraints for robot? Requirments are Wires, staillies, coding but what are constraits

22. ## PreCal

Solve the following equation for all solutions: cos(5x)cos(3x)-sin(5x)sin(3x)=√3/2. I know the formula to use would be cos(A+B), but I'm just not confident in my ability to solve it correctly.

23. ## math

If you try to solve a linear system by the substitution method and get the result 0 = 8, what does this mean? A. The system has one solution, (0,8). B.The system has one solution, (8,0). C.The system has no solutions. D.The system has an infinite number of

24. ## Math

If the difference of two numbers is a and the smaller number is x what is the greater number

25. ## Math

Kiara bakes 40 oatmeal cookies and 48 chocolate chip cookies in plastic containers for her friends at school. She wants to divide the cookies into identical containers so that each container had the same number of each kind of cookie. If she wants each

55. ## Math

What is the Area of 64 mi squared?

56. ## Math

You have a tax refund of $360.80. You are able to get the tax refund immediately from your tax preparation agency for a finance charge of$34.01. What annual simple interest rate are you paying for this loan assuming the tax refund Check would be a

57. ## PreCal

Solve the following equation for all solutions: sin(11x)cos(6x)-cos(11x)sin(6x)=√3/2

58. ## English

What is Elie Wiesel's main message to both young and old?

59. ## English

I have to do an argumentative essay and I can't think of a topic, any ideas?

60. ## Math

Sage has a hot dog stand. Last week he spent $13 for hot dogs and supplies. He earned$25. What was his profit?

61. ## Math

An employer has $500 that she can award in bonuses to her 7 employees. If she wants all of the bonuses to be in$25 increments and not everyone has to receive bonuses, how many different ways are there for her to give out bonuses?

62. ## statistics

You want to estimate the mean amount spent by customers at a local gas station with 95% confidence and a margin of error of no more than $3. Preliminary data suggests that$5.10 is a reasonable estimate for the standard deviation for all customers. How

63. ## Mathematics

Hi everyone, i just had an assignment and I was wondering if someone could check my answer to one of the questions. Thanks in advanced. :) 4. In the expression -9x - 2x^2 + 7, what is the coefficient of x? -) -9 -) -2 -) 7 -) 9 I actually couldn't decide

64. ## Math re-post for someone

Joseph spent 3/4 of an hour working out in a gym. He spent 1/2 of that time lifting weights. What fraction of a hour did he spend lifting weights?

65. ## Precal re-post for Amal

The endpoints of line segment XY are X(-6,2) and Y(6,-10). Find the point Q the partitions YX in a ratio of 3:1

66. ## math

Imagine lots of people in a park, sitting in the Sun. Each person wants to keep at least 2m distance to everyone else, but they want to have as many people as possible at the minimum 2m distance. How should the people arrange themselves to make this

67. ## Social studies

Use the quote below to answer the question: Why did the Dred Scott v. Sandford decision anger Northerners? Frederick Douglass, Collected Speeches, 1857 "This infamous decision maintains that slaves...are property in the same sense that horses, sheep and

68. ## math

Solve Algebraically: 5.((x+0)^2)/1+((y+.8)^2)/1=9 12. x^2=1.2y+4.8 i cant get the answer i keep doing it wrong someone please help

69. ## Chemistry

What is the molarity of a solution made by dissolving 100.065 g of SnBr2 in water and diluting with water to 1.00 L total?

70. ## Physics

An oceanic depth-sounding vessel surveys the ocean bottom with ultrasonic waves that travel 1530 m/s in seawater. How deep is the water directly below the vessel if the time delay of the echo to the ocean floor and back is 6 s?

71. ## math

What is the first step in solving the linear system {2x−3y=11 {−x+5y=−9 by the substitution method in the most efficient way? A. Solve the first equation for x. B. Solve the first equation for y. C. Solve the second equation for x. D. Solve the

72. ## Pre Calc

A ship travels 60 miles due east, then adjusts its course 55 degrees northward. After traveling 80 miles in that direction, how far is the ship from its point of departure?

73. ## Programming

Is there a maximum number of functions that JavaScript can have? What about parameters?

74. ## Physics

I just want to know the direction for this question. I use the right hand rule and it shows the magnetic field is going into the page but that is not the answer neither is to the left or right. The answer could be any of these choices up, down, out of the

75. ## English

Which sentence has no mistakes? A. Kaitlyn tore her reciept in half. B. Mason wanted to go to the movies and he went.*** C. Ryan told his mom about his bad grade, yesterday. D. Blakely talked about plains and how she wanted to become a pilot with her mom.

76. ## Math

The sum of two numbers subtracted from twice the sum of those numbers

77. ## Biology: Echinoderms

Hello! I'm having trouble with this question on my study guide about the phylum of echinoderms: The individual calcareous elements that compose the water vascular system in echinoderms are ____. I know that ossicles are made of calcium but they are a part

78. ## economy

My friend Tim is trying to open up a new business and needs a great deal of investment money to get off the ground. The business is a zoo by day, nightclub by night, in downtown. Tim has no experience in this industry, and has never run or owned a business

79. ## Chemistry

Given the following information: 2NaHCO3(s) + 85 kJ → Na2CO3(s) + H2O(l) CO2(g) Calculate the amount of heat (in kJ) required to decompose 2.24 mol NaHCO3(s). You must show your work to receive credit. I need serious help with this.

80. ## math

Which of the following is not a characteristic of a graph displaying direct variation?