# Brianna

Newest questions and responses by Brianna
1. ## Chemistry

How many molecules of hydrogen gas are formed when 24.6 g of sodium are added to water. Please show work.

2. ## English

Which responses accurately state a central idea of The Tempest? (Select all that apply.) The Tempest The power of magic can be a force for good, but it is also complicated and too great a responsibility for any single person. Some people in life will

3. ## History

What did Otto Von Bismarck do to help unify Germany? He sponsored the development of a nationalistic education focusing on the achievements of the German people. He helped create wars with neighboring countries to increase national pride among the German

4. ## English

Which responses explain how affixes change the world guise to another part of speech? (Select all that apply.) A. Adding the prefix dis- and the suffix -ly creates the adverb disguisedly. B. Adding the prefix dis- and the suffix -ment creates the adjective

5. ## English

Canto VIII of the epic poem Beowulf is structured as a dialogue between Unferth and Beowulf. Which responses accurately describe the impact Canto VIII has on the overall meaning of the epic poem? (Select all that apply.) Beowulf A. The boastful dialogue

6. ## algebra

Which line has an undefined slope? Select one: a. x=18 b. 2y-6x=0 c. y=-9 d. y=x

7. ## English

from "Success" Which is one of Emerson's messages in this text? While criminals may succeed and prosper for a time, they will eventually be found out and punished. It is better to learn to live with one's faults and problems than to try and fail to correct

8. ## algebra

Find −23 7/8+11 1/4.

9. ## algebra

Find −23 7/8+11 1/4.

10. ## algebra

Across a horizontal distance of 25 feet, a roller coaster has a steep drop. The height of the roller coaster at the bottom of the drop is -125 feet, compared to its height at the top of the drop. What is the average amount that the roller coaster's height

11. ## History

from Miranda v. Arizona What does Chief Justice Warren state is the primary fault of officers in the cases under consideration? failing to let suspects make phone calls failing to get written confessions failing to ensure confessions were made freely

12. ## History

from Miranda v. Arizona Which kind of confession is declared admissible by this ruling? a confession not evoked by police questioning a confession not properly recorded by police a confession that also implicates someone else a confession made in private

13. ## math

what did the filling say to the doughnut?

14. ## Texas History

How is urbanization related to popular culture as seen in Texas in the 1920s?

15. ## Algebra 1

Brianna needs to earn a C in her Geology class. Her current test scores are 65, 67 67, and 93. Her final exam is worth 6 test scores. In order to earn a C Brianna's average must lie between 70 and 79 inclusive. What range of scores can Brianna receive on

16. ## ASAP Physics

A small first-aid kit is dropped by a rock climber who is descending steadily at 1.6 m/s. (a) After 3.5 s, what is the velocity of the first-aid kit? (b) After the 3.5 s, how far is the kit below the climber?

17. ## ASAP Physics

A worker drops a wrench from the top of a tower 118.5 m tall. What is the velocity when the wrench strikes the ground?

18. ## physics

A car starts from rest and travels for 4.1 s with a uniform acceleration of +1.4 m/s2. The driver then applies the brakes, causing a uniform acceleration of -1.8 m/s2. The breaks are applied for 1.80 s.

19. ## physics HELP

A sailboat starts from rest and accelerates at a rate of 0.18 m/s2 over a distance of 494 m. (a) Find the magnitude of the boat's final velocity. (b) Find the time it takes the boat to travel this distance.

20. ## help physics

It takes a runner 3 h, 32 min, 26 s to run a marathon. If the distance of a marathon is 42.2 km, what is the average speed of the runner?

21. ## physics

It takes a runner 3 h, 32 min, 26 s to run a marathon. If the distance of a marathon is 42.2 km, what is the average speed of the runner?

22. ## physics

Runner A is initially 2.4 km west of a flagpole and is running with a constant velocity of 7.6 km/h due east. Runner B is initially 7.6 km east of the flagpole and is running with a constant velocity of 4.4 km/h due west. What will be the distance of the

23. ## Math

Need help putting this into a linear equation. In 2017 there were 850 graduates, however, in 2018 there is an expected decline of 15% due to increased tuition cost. What is the expected graduation total for 2018?

24. ## Math

Find the​ x-coordinate of the vertex of a parabola that passes through the points (0,6) and (8,6)

25. ## Math

In a pen the farmer counts 20 pigs and geese for a total of 70 legs. How many animals are there for each kind?

26. ## math algebra

\$199.99 smartphonde on sale for \$167. what percentage decrease is this 99

27. ## Chemistry-Urgent

A gas at 61°C occupies a volume of 0.67 L. At what Celsius temperature will the volume increase to 1.12 L? whats the answer didn't understand

28. ## chem

Air trapped in a cylinder fitted with a piston occupies 162.2 mL at 1.08 atm pressure. What is the new volume when the piston is depressed, increasing the pressure by 25%? what is the answer? didnt understand?

29. ## Math

In what proportion should you combine 2:5 soaking solution and distilled water to create 1:20 solution?

30. ## chem

A gas at 61°C occupies a volume of 0.67 L. At what Celsius temperature will the volume increase to 1.12 L?

31. ## chem

A weather balloon is filled with helium that occupies a volume of 4.33 104 L at 0.995 atm and 32.0°C. After it is released, it rises to a location where the pressure is 0.720 atm and the temperature is -10.2°C. What is the volume of the balloon at that

32. ## chemistry

A fixed amount of oxygen gas is held in a .500 L tank at a pressure of 4.68 atm. The tank is connected to an empty 1.50 L tank by a tube with a valve. After this valve has been opened and the oxygen is allowed to flow freely between the two tanks at a

33. ## chem

The pressure of a sample of helium in a 3.35 L container is 0.988 atm. What is the new pressure if the sample is placed in a 2.94 L container?

34. ## chem

Air trapped in a cylinder fitted with a piston occupies 162.2 mL at 1.08 atm pressure. What is the new volume when the piston is depressed, increasing the pressure by 25%?

35. ## chem

A gas at 61°C occupies a volume of 0.67 L. At what Celsius temperature will the volume increase to 1.12 L?

36. ## chem

The pressure in an automobile tire is 1.89 atm at 24.0°C. What will be the pressure if the temperature increases to 38.0°C? i alreaddy got 1.89/24.0. i dont know where to go from there

37. ## Math

A school is holding a Fixed Raffle, where only a certain number of raffle tickets can be sold.  The school sold 970 of these tickets for \$10 each.  One of the tickets will win \$2910, two tickets will win \$970, and 5 tickets will win \$485.   What is the

38. ## MAth

Darth Vader is designing a game that costs \$20.  The game consists of pulling a colored rock out of a container.  When the rock is Red Darth Vader pays nothing, when the rock is Blue Darth Vader pays \$40, and when the rock is White Darth Vader pays \$100.

39. ## MAth

The odds against Rainbow winning the race are 17:5.  Brian bets \$120 on Rainbow to win and Rainbow does win the race. How much money does Brian win? What was the probability that Rainbow was going to win the race?

40. ## Maths

\$12 000 is invested at 6% p.a. for 42 months. How much interest is earned each year and how much interest is earned after 2 years?

41. ## chem

What are the molality and mole fraction of solute in a 25.5 percent by mass aqueous solution of formic acid (HCOOH)? work this one out please i didnt understand

42. ## chemistry

What is the molality of a solution containing 11.1 g Na2SO4 dissolved in 2269.2 g of water? Just making sure would it be 11.1 divided by 2269.2 times 100?

43. ## Chemistry-Urgent

What is the molality of a solution containing 11.1 g Na2SO4 dissolved in 2269.2 g of water?

44. ## Chemistry-Urgent

The partial pressure of CO2 inside a bottle of soft drink is 4.0 atm at 25°C. The solubility of CO2 is 0.12 mol/L. When the bottle is opened, the partial pressure drops to 3.0 ✕ 10-4 atm. What is the solubility of CO2 in the open drink? Express your

45. ## Chemistry-Urgent

What is the percent by volume of ethanol in a solution that contains 26 mL of ethanol dissolved in 113 mL of water? explain please

46. ## Chemistry

You have 1683.8 g of a bleach solution. The percent by mass of the solute sodium hypochlorite, NaOCl, is 3.62%. How many grams of NaOCl are in the solution? (show work Please)

47. ## Chemistry

What are the molality and mole fraction of solute in a 25.5 percent by mass aqueous solution of formic acid (HCOOH)? (Explain how you got the answer please)

48. ## Solstudies

What is Williamsburg originally named

49. ## Math

What is the definition for composite

50. ## Math

What is the definition for composite

51. ## Language Arts

15. Read the following lines from the story “Forbidden Fruit.” Of course, in childhood there were occasions when I could have tasted pork in kindergarten or ate at the home of a friend, but I never broke the commandment. When we had rice and pork in

52. ## Language Arts

Read the following passage. Then answer the questions that follow. THE OLYMPIC SWIMMER Who will be the winner bold? Athletes from both far and near Train and Strain to be the best. But who will win the medal gold? Swimmers swivel, splash, and kick Back and

53. ## American Government

Has anyone done the Memo to the president portfolio? I am like...really stuck on it.

54. ## Math

14 bottles of water costs \$56.How much would you pay for 50 such bottles?

55. ## history

wat year was abraham lincoln great great grandma born in.

(3-2i)^2

57. ## Math

What is the distance, to the nearest tenth, from S(4,-1) to W(-2,3)

58. ## math

Rihanna planned a rectangular courtyard for a park and made a scale drawing using inches as the unit of measurement. She originally planned for the length of the actual courtyard to be 54 feet, but she decided to change it to 72 feet. If the length of the

59. ## Chemistry

Calculate the volume of 1.0 M CuSO4 stock solution you should use to make 100 mL of a 0.010 m CuSO4 solution.

60. ## Math

8th Grade Math 180degrees - (125degrees+38 degrees) = x degrees how do i solve this ?

61. ## Algebra

The variable Z is directly proportional to X. When X is 6, Z has the value 72. What is the value of Z when X = 13

62. ## Math

Marge bought a computer for \$699 on the installment plan. The terms of the plan were a down payment of \$100, then payments of \$58 a month for 12 months. How much was her total cost?

63. ## Sxiences

A force of 200 N causes an object to accelerate at 2m/s^2. What is the object's mass?

64. ## Functions

A car has 16 gallons of gasoline in its tank when it starts it's journey. On a long highway trip, gasoline is used at a rate of about 2 gallons per hour. The gallons of gas, "g", remaining in the car’s tank after "t" hours can be modeled by the function:

65. ## Functions

You own two restaurants. From 1995 to 2000, the sales R1 (in thousands of dollars) for one restaurant can be modeled by: R1 = 480 – 8t – 0.8t2, t = 0, 1, 2, 3, 4, 5, where t = 0 represents 1995. During the same 6-year period, the sales R2 (in thousands

66. ## Functions

You purchased a new car for \$22,000. The value of the car decreases by 15% each year. Which function could be used to model the value of the car, "V", after "t" years?

67. ## Algebra

Simplify x/6x-x^2 A. 1/6-x; where x = 0,6** B. 1/6-x where x= 6 C. 1/6x where x=0 D. 1/6 Simplify 5x^3/7x^3+x^4 A. 5/7+x; where x = 0,-7 B. 5/7+x; where x=-7** C. 5/7x; where x = 0 D. 5/7

68. ## Calculus I

The volume of a sphere is changing at a rate of 8pi cm/sec. What is the rate of change of its surface area when the radius is 1? (the volume of a sphere is given by V=4/3pir^3 and its surface area, by A=4pi r ^2).

69. ## Physics

What is common to all light sources, including incandescent, fluorescent, neon, halogen, laser, and sodium vapor devices?

70. ## Consumer math Help please

You (or your parents) purchase a new car for \$16,725.00 plus 6.15% sales tax. The down payment is \$1,400.00 and you (or your parents) have an average credit rating. How much interest is accrued after the first month? Average Credit score APR (%)- Secured

71. ## English

Which of the following quotes spoken by Juliet shows the strongest example of how she changes over the course of Romeo and Juliet? A. Madam I am here what is your will B. I'll look to like if looking liking move: but no more deep will I endart mine eye

72. ## Geometry

A model is made of a car. The car is 9 feet long and the model is 6 inches long. What is the ratio of the length of the car to the length of the model?

8—(-2)

75. ## Science

Assuming a force of 50 N is applied to each object by each contestant, what is the acceleration of object A?_ B?_C?_ ( Person A's object is 5.0kg, person B's object is 2.5kg and C's is 0.5kg

76. ## Physics

A 2.6 kg rock is initially at rest at the top of a cliff. Assuming the rock falls into the sea at the foot of the cliff and that its kinetic energy is transferred entirely to the water, how high is the cliff if the temperature of 0.98 kg of water is raised

77. ## chemistry

What mass of water can be heated from 45C to 88C with 28 kj?

78. ## Math

a cell phone company offers the following plan: monthly charge (which includes 500 minutes) for \$40 and a charge for additional minutes will be 5 cents a minute. write a piecewise function function putting x&y terms that can be used in any # or minutes. I

79. ## AP Physics

Two blocks are connected by a string over a frictionless, massless pulley such that one is resting on an inclined plane and the other is hanging over the top edge of the plane. The hanging block has a mass of 16 kg and the one on the plane has a mass of 8

80. ## Chemistry

Describe in words how you would make a 1.00 M solution of HCl from a 5.00 M solution of HCl. Completely stumped here. Any help?

81. ## math

Laura drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 6 hours. When Laura drove home, there was no traffic and the trip only took 4 hours. If her average rate was 22 miles per hour faster on the trip home,

82. ## history

17. Under Franklin Roosevelt's Good Neighbor policy, A. the collective security among the nations of the Western Hemisphere declined. B. American commerce with Latin America increased, but only slightly. C. the Platt Amendment was rescinded. D. Cordell

83. ## Math

There are 47 students in the marching band. There are 5 students in te first row, and the rest are in equal rows of 6. How many students are in each of the 6 rows?

84. ## Physics

We always hear people say “You should conserve energy! Think of what will happen to the next generation if all our energy resources get depleted!” Is this in contradiction with the Law of Conservation of Energy which states that the total amount of

85. ## algebra

Solve system of equations to model the problem then solve: The length of a rectangle is 7 inches more than the width. The perimeter is 34 inches. Find the length and the width of the rectangle.

86. ## Algebra

Write a system of equations to model the problem and solve the system: The sum of two numbers is 156. What number is 28 more than the second number. What are the numbers?

87. ## Algebra

Write a system of equations to model the problem and solve the system: Benjamin has nickels and dimes and his toy bank he has a total of 45 coins the total value of \$3.60. How many coins of each kind does he have?

88. ## Algebra

Write a system of equations to model the problem and solve the system: Benjamin has nickels and dimes and his toy bank he has a total of 45 coins the total value of \$3.60. How many coins of each kind does he have?

89. ## Algebra

Write a system of equations to model the problem and solve the system: The sum of two numbers is 156. What number is 28 more than the second number. What are the numbers?

90. ## algebra

Solve system of equations to model the problem then solve: The length of a rectangle is 7 inches more than the width. The perimeter is 34 inches. Find the length and the width of the rectangle.

91. ## Math

A room measures 450cm by 350cm. Find the side if the largest square tile that can be used to tile without cutting

92. ## Pre Calculus

The logistic growth function P(t)= 160/ 1 + 9e^-0.165t describes the population of the endangered species of elk "t" years after they were introduced into the habitat. a. How many elk were initially introduced into the habitat? b. How many elk are expected

93. ## Pre Calculus

If a 25 mg sample of radioactive material decays to 18.4 mg in 5 years, how long will it take the sample to decay to 20.5 mg?

94. ## Pre Calculus

You invest \$4500 into an account that earns 6.5% interest compounded monthly. How long will it take for the account to double in its value?

95. ## Pre Calculus

The population of a city is 127,000 and is decreasing by 2.4% each year. a. What will the population be in 10 years? b. Find when the population will be 95,000

96. ## Chemistry

Sort these species into isoelectronic groups. It doesn't matter which group goes in which box, so long as the correct species are grouped. Ne Mg2+ S2- Ti4+ K+ He Li+ Be2+ N3-

97. ## Math

Chris has a square garden with an area of 38.4 m squared. He decreases the length of each side by 1.7 m to make a smaller garden. What is the perimeter of the smaller garden. {Hint find the length of each side of the bigger garden first, then decrease the

98. ## Physics

1. A body was dropped from a building 10-m high. Its kinetic energy before reaching the ground is 980 J. What is the mass of the body? 2. A 1.0-kg block slides down a rough inclined plane whose height is 1.0 m. At the bottom the block has a speed of 4.0

99. ## Math

Bill is painting his basement floor. If one can of paint will cover 4.5m squared, how many cans of paint will he need? Measurements: 13.5m, 1.5m, 6m, 18m, 13.5m,1.5m show work !It is a rectangle layout!