# Brianna

Popular questions and responses by Brianna
1. ## 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.

2. ## Consumer Math

Your parents are buying a house for \$187,500. They have a good credit rating, are making a 20% down payment, and expect to pay \$1,575/month. The interest rate for the motrgage is 4.65%. What must their realized income be before each month and how much

3. ## 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

4. ## 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,

5. ## Math

1. Find the 11th term of the geometric sequence 64, -32, 16, -8, … . 2. Find the 1st term of a geometric sequence with a 10th term -1024 and r = -2. 3. Find the sum of each infinite geometric series, if possible. a. 10 + 2 + 2/5 + ..... b. 1.2 – 2.4 +

6. ## physics

The current in a lightning bolt is 1.6 105 A. How many coulombs of charge pass through a cross-sectional area of the lightning bolt in 0.70 s? I don't know how to set this up???

7. ## math

Can you help me with this: Paul's budget for food is \$10 more than 1/3 of his total budget. If \$100 was alloted for food, what was the total budget? Ana if you have to change the 1/3 to a decimal, can you help me with that too? Thank you!! 100-10= 1/3 B I

8. ## science

A car travels 240km in 2hr. And the sprinter travels 100m in 9.5 seconds. which one is traveling faster and by how much ?

9. ## 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

10. ## 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-

11. ## geometry

Points A, B and C are collinear with B between A and C. If AB=3x-4 and BC=4x+7 and AC=12x-12, find the value of x?

12. ## 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?

Create a rational function such that the graph of has vertical asymptotes at x=5 and x= -7, a hole at x=2 , and a horizontal asymptote at y = 14. By creating a rational function, you are to write rule for this function. There are many correct solutions

14. ## A.P Chemistry

Three volatile compounds X,Y, and Z each contain elements Q. The precent by weight of element Q in each compound was determined. Some of the data obtained are given below Percent by weight Molecular Compound of Element Q Weight X 64.8% ? Y 73.0% 104. Z

15. ## Physics

If toy rocket rises vertically and then falls back to the ground, what changes occur in the rocket's velocity and acceleration. Please give a sentence explanation not a formula

16. ## chemistry/physics

If a rock climber accidentally drops a 69.0 g piton from a height of 305 meters, what would its speed be just before striking the ground? Ignore the effects of air resistance.

17. ## Algebra

Using each of the following scales, find the dimensions in a blueprint of an 8ft-by-12ft room. 1. 1 in.:2ft 2. 1 in.:4ft

18. ## 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

19. ## 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

20. ## 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

21. ## Physics

An Australian emu is running due north in a straight line at a speed of 13.0 m/s and slows down to a speed of 10.9 m/s in 3.70 s. (a) What is the magnitude and direction of the bird’s acceleration? (b) Assuming that the acceleration remains the same,

22. ## Chemistry

Separate this redox reaction into its component half-reactions. O2 + 2Mg----> 2MgO

23. ## Chem 2

At 25 °C only 0.0570 mol of the generic salt AB is soluble in 1.00 L of water. What is the Ksp of the salt at 25 °C?

24. ## chemistry

3CuCl2-2H2O + 2AL--> 3Cu +2AlCl3+6H2O what is the thepretical yield or copper? then what is the limiting reagent and excess reagent? whats the percentage yield?

What is a predicate ajective and what is a predicate nomanative?

26. ## Physics

I need help solving this please! I think that for part (b) I can use energy and wavelength to solve for frequency and the one with the highest frequency is the most damaging, but I'm not sure what to do for part (a). You want to study a biological specimen

27. ## Physics: Sound Waves

Two organ pipes, open at one end but closed at the other, are each. 1.14 m long. One is now lengthened by 2.00 cm. Find the frequency of the beat they produce when playing together in their fundamental.

28. ## Pre algebra

what is another way to write to 72 - (-25) A. 72+25 B. -72 -25 C. 72 - 25 D. - 72 - (-25) what is the value of - 27 - 8 A. - 35 B.-19 C. 19 D. 35

29. ## 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

30. ## science

Which experimental approach would be the most effective and easiest to clearly determine the evolutionary relationship between these 2 organisms? The 2 organisms are a starfish and snake. A. Sequence the same gene in both species to compare their

31. ## physics

A net charge of 47 mC passes through the cross-sectional area of a wire in 19.0 s. (a) What is the current in the wire? 1 A (b) How many electrons pass the cross-sectional area in 1.0 min? 2 . electrons I got 9.3e+22 for B but its wrong

32. ## physics

In ammonia (NH3) molecule, the three hydrogen atoms form an equilateral triangle, the distance between the centers of the atoms being 16.28x10^-11 m, so that the center of the triangle is 9.40x10^-11 m from each hydrogen atom. The nitrogen atom is at the

33. ## US history

what was the parliament's reaction to the Boston Tea Party of 1773 ?

34. ## History

I need help understanding Roger Williams "A Plea for Religious Liberty" Essay. give a sample of what you get and don't get The way it's worded is very hard to understand. I'm writing an essay comparing it to Johnathan Edwards, "Sinners in the Hands of an

35. ## 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

36. ## algebra

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

37. ## 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

38. ## algebra

Find −23 7/8+11 1/4.

39. ## 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

40. ## Math

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

41. ## Math

1. The measure of an interior angle of a regular polygon is 20 more than thrice the measure of its adjacent exterior angle. Find the number of sides of the polygon and its total number of diagonals. 2. Find the sum and difference between the sum of the

42. ## Science

aluminum has a density of 2.7g/cm3 while copper has a density of 8.96g/cm3. Which metal would you choose to build a model airplane? why?

43. ## english

Which one of the following sentences correctly uses a comparative adjective? A. Of the three girls, Janet is the better speaker. B. Alicia is a gooder swimmer than Marilynn. C. George has a bigger appetite than Harry. D. This is the worse picture I've ever

44. ## chemistry

which of the following summarizes Charles' Law? A. as temperature decreases, the gas particles slow down and take up less space B. as temperature increases, the gas particles slow down and take up less space C. when pressure decreases, the gas particles

45. ## calculus

find all discontinuities (16x/2x3-8x3=0)

46. ## Physics based Calculus

Bob has just finished climbing a sheer cliff above a beach, and wants to figure out how high he climbed. All he has to use, however, is a baseball, a stopwatch, and a friend on the ground below with a long measuring tape. Bob is a pitcher, and knows that

Carmen Santiago works for a number of businesses as a “consultant.” She has helped design accounting systems, provided accounting services, and analyzed the financial strength of her clients’ businesses. Carmen is working as a A.public accountant

48. ## ---college algebra (average rate of change)---

If the average rate of change of g(x) from x = 1 to x = 9 is 20, and if the average rate of change of g(x) from x = 9 to x = 21 is 40, then what is the average rate of change of g(x) from x = 1 to x = 21?

49. ## ---college algebra (average rate of change)---

Find the average rate of change of g(x) = -2x2 + 36x - 142 on the interval from x = -5 to x = 10.

50. ## ****college algebra****

Let g(x) = -2x + 8 and h(x) = 3x + 4. For what value of x is composition (g o h)(x) = (h o g)(x). If no such value exists, type in DNE in the space provided.

51. ## Algebra help

Find each percent of change. Describe the percent of change as an increase or decrease. Round to the nearest tenth if necessary. 15lbs to 18lbs \$38 to \$65 125lbs to 143lbs

what is standard form ? and What is expanded form ?

53. ## decompose

decompose 5x+1/x^2-x-12 into partial functions?

54. ## geometry

A table is shaped like a regular hexagon. The length of one side is (3x + 3) in. and the length of another side is (4x − 4) in.. Find the length of a side.

55. ## Physics

If ^235U (235.043930 u) is struck by a neutron it undergoes fission producing ^144 Ba (143.922953 u), ^89 Kr (88.917630 u) and three neutrons (1.0086649 u). (a) Calculate the energy in MeV released by each fission reaction. (b) Calculate the energy

56. ## math

(Estimate) kaylynn earns 8.75\$ per week and she works for 37.5 hours estimate how much kaylynn earns in a week

57. ## Chemistry

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

58. ## 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

59. ## 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

60. ## 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?

61. ## 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?

62. ## 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)

63. ## 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?

64. ## 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).

65. ## 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

66. ## 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

67. ## Math

1. Find the sum of the first five terms of the sequence 2/3, 2, 6, 18, ..... My answer is 242. Am I right? 2. Which of these two sequences form a geometric sequence: 2x, 4x-2, 6x-4, ..... OR x+1, 2x+2, 5x+1, .....? Find the value/s of x and what is the

68. ## Math

1. Find the sum of the sequence: 32, -16, 8, -4, 2, .... My answer is 64/3. Am I correct?

69. ## Science

What Type of Simple Chemical Reaction Occurs in Fireworks?

70. ## Science

1.what chemical properties of nail polish remover makes it dangerous? 2.Surgeons sometimes use metal plates and screws to hold broken bones together. What chemical properties do you think the metal should have?

71. ## science

A drinking glass at a crime scene contains a clear colorless liquid that may be water or alcohol. As the investigator, you know that the densities of alcohol, water, and ice are 0.79g/mL, and 0.92/mL. Design a simple method to determine the identity of the

73. ## english

Which one of the following sentences correctly uses a comparative adjective? A. Of the three girls, Janet is the better speaker. B. Alicia is a gooder swimmer than Marilynn. C. George has a bigger appetite than Harry. D. This is the worse picture I've ever

74. ## english

Which one of the following sentences correctly uses a comparative adjective? A. Of the three girls, Janet is the better speaker. B. Alicia is a gooder swimmer than Marilynn. C. George has a bigger appetite than Harry. D. This is the worse picture I've ever

75. ## Finance

One of Wildcat's competitors has a total assets turnover equal to 2.0, a return on equity equal to 15%, and a debt ratio equal to 60%. The company is financed with debt and common stock. What is this company's Return on Assets and Net Profit Margin?

76. ## Statistics

According to internal testing done by the Get-A-Grip tire company, the lifetime of tires sold on new cars is normally distributed with a mean of 23,000 miles, with a standard deviation of 2500 miles. If the claim by Get-A-Grip is true, what is the mean of

77. ## Calculus

If C(x) = 18000 + 400x − 2.2x^2 + 0.004x^3 is the cost function and p(x) = 2800 − 7x is the demand function, find the production level that will maximize profit. (Hint: If the profit is maximized, then the marginal revenue equals the marginal cost.)

78. ## Calculus

If C(x) = 18000 + 400x − 2.2x^2 + 0.004x^3 is the cost function and p(x) = 2800 − 7x is the demand function, find the production level that will maximize profit. (Hint: If the profit is maximized, then the marginal revenue equals the marginal cost.)

79. ## Language Homophones

What is the homophone for racecourse.?

80. ## Math

2 root 2 sin 2t + 2 root 3 tan 2t = 0

81. ## chemistry

In a constant-pressure calorimeter, 75.0 mL of 0.830 M H2SO4 was added to 75.0 mL of 0.310 M NaOH. The reaction caused the temperature of the solution to rise from 23.20 °C to 25.31 °C. If the solution has the same density and specific heat as water,

82. ## criminology

Which of the following is not considered to be one of the most important groups contributing to the process of socialization, according to social process theories?

83. ## math

how many minivans (15 minivans) would pass susan if 60 vehicles passed her

84. ## physics

It is estimated that in the United States (population 250 million) there is one electric clock per person, with each clock using energy at a rate of 3.5 W. Using this estimate, how much energy is consumed by all the electric clocks in the United States in

85. ## trig

2sin(4x)[(cos(3/2)x)(cos(5x/2)-sin((15/4)x)]+x can someone simplify this using trig identities?

86. ## chemistry

"Following the reaction of zinc with hydrochloric acid, a secondary reaction can occur if a product of the first reaction is ignited. Write the complete reactions for both reactions." "If 2.75g zinc with 0.15 moles HCL, how much flammable product can be

87. ## math

Dvds are priced at 2for \$15. Garret wants to buy 5 DVD. What equation can be used to find s, the total price of garret DVD?

88. ## math

Which is not equal to 2 quarts? 2c, 4 pints, 1/2 gallon or 64 fluid oz.

89. ## computer class

what is a e-commmerce

90. ## geography

cultural exchange between nations has been as a result of technological advances

91. ## social studies

In what ways did king George the 3rd deny the American colonists natural rights, social contract, and consent of the governed?

92. ## ***college algebra***

Let h(x) = x3/2(x - 7)1/3 and g(x) = 200x3 - 47x2 + 9017x + 3. Utilize this information to find the value of (g o h)(7). I worked it out and came up with the answer 1421313.733.... i feel like this isnt right... please feel free to comment :)

93. ## Algebra

The sum of two consecutive even integers is 118. A. Define a variable for the smaller integer. B. What must you add to an even integer to get the next greater even integer? C. Write an expression for the second integer. D. Write and solve an equation to

94. ## college Algebra

If the average rate of change of g(x) from x = 1 to x = 5 is 17.5, and if the average rate of change of g(x) from x = 5 to x = 10 is 35, then what is the average rate of change of g(x) from x = 1 to x = 10?

95. ## College Algebra

a hardware store owner chooses to enclose an 800 square foot rectangular area in front of her store so that one of the sides of the store will be used as one of the four sides of the fence. if the two sides that come out from the store front cost \$3 per

96. ## math

Joel wants to biscet FGH.What should he do first.

97. ## Biology help :(

Place the following process in the correct order. a) urine is stored in the bladder. b) blood enters the afferent arteriole. c) fluids pass from the glomerulus into Bowman's capsule. d) urine is excreted by the urethra. e) sodium ions, glucose and amino

98. ## social studies

how did the Nile river and the sorrounding area help protect egypt

99. ## decompose

decompose 5x+1/x^2-x-12 into partial functions?