Jessie

Newest questions and responses by Jessie
1. algebra/calculus

Compare the graphs of the inverse variations. Please provide at least 3 comparisons. y = -0.2/x and y= -0.3/x. i found -0.1/x , -0.15/x? and -0.04/x, -0.06/x and -0.0222/x , -0.0333/x i'm not sure if i need to put " /x" every time at the end but i just

asked on February 1, 2019
2. algebra 2

. Is there any bias in the survey question? Explain. What do think would help students pay more attention in class? i don't understand what i am supposed to answer to this

asked on January 29, 2019
3. english 2

can yall check my answers? 16. identify the sentence in which the underlined pronoun is used incorrectly a. YOU'RE never going to believe what i just heard! b. have you turned in YOU'RE english paper yet?

asked on January 8, 2019
4. Enlish

Please help me correct my english grammar below. Dear Sir, Good day, thank you again for your effort in helping me to hire and working back in the company it would be a great gratitude to you. TO pay you back i would do my best to work hard and contribute

asked on October 23, 2018
5. English

Dear Sir, Good day, thank you again for your effort in helping me to hire and working back in the company it would be a great gratitude to you. TO pay you back i would do my best to work hard and contribute a skills for company's benefits. I would keep my

asked on October 23, 2018
6. Math

From a point A, the angle of elevation to the top of a building is 50°. From point B which is 11 m closer to the building the angle of elevation to the top is 63°. How far is point B from the top of the building? How tall is the building?

asked on March 20, 2018
7. Chemistry

If the amount of gas is decreased and the temperature and pressure stay constant, what will be the effect on its volume? The volume will increase. The volume will decrease. The volume will remain the same. The volume will be reduced to zero.

asked on January 15, 2018
8. Algebra

As cars passed a checkpoint, the following speeds were clocked and recorded. Speed (mph): 55 62 61 54 68 72 59 61 70 what's the range? , 1st quartile and 3rd quartile? please.

asked on November 29, 2017
9. College Prep

What is the main function of an official transcript in high school? a. to reflect high school graduation credits and requirements b.to monitor attendance and behavior c. to chart standardized test scores and class grades d. to secure state and federal

asked on September 19, 2017
10. Math

15 less than the product of two and r

asked on September 1, 2017
11. math

A ball is dropped from a height of 18 m.On each rebound it rises 2/3 of the height from which it last fell. What distance has it travelled at the instant it strikes the ground for the 5th time?

asked on August 25, 2017
12. Math

Find the least and greatest possible original numbers: ROUNDED PLACE is Ten Thousands, ROUNDED NUMBER is 190,000. What is the Least number and the Greatest number?

asked on July 9, 2017
13. Math 3

Find the least and greatest possible original numbers: ROUNDED PLACE is Thousands, ROUNDED NUMBER is 1,800. What is the Least number and the Greatest number?

asked on July 9, 2017
14. accounting

Please help me to get the answers for these questions in order to help my niece for their assignment answers correctly. thanks Answers as called for show computations and analyses 1.An office machine costing p 20,000 has been used for three of its eight

asked on June 14, 2017
15. english

Please could you check my grammar. thanks 1.Other Color Print Price, depending on the image’s size

asked on June 5, 2017
16. English

Please help correct my answers for potential interview. what are your strenghts and weaknesses? my greatest strengths is i always completed a multi tasks a head the deadline. my weaknesses is being a perfectionist on myself i always make sure that every

asked on May 9, 2017
17. english

Pleaese correct my answers on the potential interview for telll me about yourself. i'm 48 years old, previously i have been working abroad in k.d.s as photolab operator since 1993-2003. i completed a training course in caregiver may 2003. from 2006-2015 i

asked on May 9, 2017
18. english

please help me to correct my anserw below: 1. Shhhh! Be quiet! John (sleep) _____. He might hear us from the other room. 1.sleeps 2.will sleep 3.is sleeping 4.have been sleeping ans.3 2. You look great! (you, exercise) _____ at the fitness center? 1. Are

asked on May 5, 2017
19. Math

126 is the product of 7 and Victor's savings. Use the variable v to represent Victor's savings.

asked on May 4, 2017
20. english

please kindly help if my answers below are coorect.thank you . Teacher: So you want to learn _____ English? 1. To Talk 2.Talking 3.Speaking 4.To Speak ans. 3 2. Student: Yes, I want to be able to speak _____. 1.Good 2.Goodly 3.Proper 4.Well ans. 4 3.

asked on May 4, 2017
21. english

Please help me to correct my answers below.let me know the correct answers. thank you 1. Justin (write) _____ his speech for the presentation now. I hope he finishes it before we meet. 1. is writing 2.will write 3.writes 4.has been writing ans.3 2. The

asked on May 4, 2017
22. english

Please help me to correct my anserw below.thank you Petroleum, or crude oil, is one of the world's (1) _____ natural resources. Plastics, synthetic fibres, and (2) _____ chemicals are produced from petroleum. It is also used to make lubricants and waxes.

asked on April 27, 2017
23. english

Please help if my answers are correct and let me know the correct answers below. thank you. Can we see (1) _____ the earth is a globe? Yes, we can. When we watch a ship that sails out to sea, we can see that the ship begins (2) _____. The bottom of the

asked on April 27, 2017
24. english

Please help me to correct my answers below.let me know the correct answers. thank you 1. Justin (write) _____ his speech for the presentation now. I hope he finishes it before we meet. 1. is writing 2.will write 3.writes 4.has been writing ans.2 2. The

asked on April 27, 2017
25. english

please kindly help if my answers below are coorect.thank you . Teacher: So you want to learn _____ English? 1. To Talk 2.Talking 3.Speaking 4.To Speak ans. 2 2. Student: Yes, I want to be able to speak _____. 1.Good 2.Goodly 3.Proper 4.Well ans. 1 3.

asked on April 27, 2017
26. Math

what is the recursive rule for the sequence -7.4, -21.2, -35, -48.8, -62.6 an=an-1+13.8 an=an+1+13.8 an=an+1-13.8

asked on April 25, 2017
27. Physics

an 1100 kg car accelerates from rest at 3.4 m/s2. if the horizontal force exerted on the wheels by the road is 5600 N, what force must be resisting the motion of the car? use a free body diagram to illustrate your answer.

asked on April 9, 2017
28. Help: biology

1. You have in front of you three vials containing a clear liquid. You are told that each vial contains one of the following carbohydrates: Fructose, Sucrose, Amylose. What experiments could you carry out to determine the composition of each vial. What

asked on April 6, 2017
29. Molecular bio

Which of these sugar(s) would contain amylose? (*I looked it up but there wasn't a clear answer* ) Glucose Fructose Sucrose Lactose Starch -This one is amylose because it's a long chain. What about the other four?

asked on April 5, 2017
30. chemistry

You measure out 3.00 mL of 0.100 M Co(NO3)2, place it in a test tube and add 7.00 mL of water. What is the concentration of the diluted solution in the test tube?

asked on March 3, 2017
31. chemistry

In an experiment designed to determine the concentration of Cu+2 ions in an unknown solution, you need to prepare 100 mL of 0.10 M CuSO4 as your stock solution. How many grams of CuSO4(s) should you use?

asked on March 3, 2017
32. math

A hotel gives every customer who makes a reservation a confirmation code. How many different confirmation codes can be created if each code has 4 letters followed by 2 numbers?

asked on February 26, 2017
33. Geometry

A diagonal of a square has the same length as a diagonal of a rectangle. The area of the rectangle is 60% of the area of the square. What is the ratio of the shorter side to the longer side of the rectangle? Write your answer as a common fraction (or an

asked on January 15, 2017
34. chemistry

The reaction 2 NO(g) + O2(g) --> 2 NO2(g) is important in forming smog. Under certain conditions, the rate law for a the reaction is rate = 4.0 x 10-3 1/M2*s * [NO]2* [O2] What is the rate when [NO]=0.020 M and [O2]=0.035 M? a. 5.6 x 10-2 M/s b. 9.8 x 10-5

asked on January 10, 2017
35. chemistry

Calculate the concentration of KIO3(aq) present at the beginning of a reaction when 2.00 mL of 0.020 M KIO3(aq) is mixed with 8.00 mL of other solutions so the initial volume for the reacting mixture is 10.00 mL.

asked on January 10, 2017
36. chemistry

Consider the reaction: N2(g) + 3 H2(g) --> 2 NH3(g). At a particular time, the nitrogen is being consumed at a rate of 0.60 moles/sec. At this same time, what is the rate at which ammonia is being formed? a. 3.0 mol/s b. 0.12 mol/s c. 0.30 mol/s d. 2.0

asked on January 10, 2017
37. chemistry

The rate of a reaction A + 2B --> products is determined. When the concentration of A is 1.0 M, the rate of the reaction is 0.50 M/s. When the concentration of A is 0.50 M, the rate is 0.25 M/s. From this data, you can determine: a. that the reaction is

asked on January 10, 2017
38. chemistry

In a reaction, a chemist is observing the absorbance of CoCl2(aq) as a function of time to determine the rate at which it is being consumed in a reaction. At time t=10 s, the chemist determines that the concentration of CoCl2(aq) is 0.12 M. At time t=20 s,

asked on January 10, 2017
39. Math

Whuch of the following expressions is equivalent to the expression below? 4[5x+2-x]

asked on January 8, 2017
40. stat

In an extensive study involving thousands of British children, Arden and Plomin (2006) found significantly higher variance in the intelligence scores for males than for females. Following are hypothetical data, similar to the results obtained in the study.

asked on November 26, 2016
41. Social Studies

what did hatshepsut do as pharaoh of Egypt?

asked on November 17, 2016
42. math

2 1/8 divided by 3 1/4= a.68/104 b.221/32 c.17/26 d.6 29/32

asked on November 10, 2016
43. Spanish

Instructions: Modifique el párrafo por cambiar las palabras entre comillas al tiempo FUTURO. Modelo: Mi familia ‘va a visitar’ a nuestros abuelos este verano. Mi familia visitará a nuestros abuelos este verano. 1. Este año ‘vamos a hacer’ una

asked on November 6, 2016
44. Pre Cal help please!!

given f(x) = { 2x^2 + 5 x < or equal to 2 3 - x^2 x > 2 find lim f(x) x -> 2^+ lim f(x) x -> 2^- lim f(x) x -> 2

asked on October 1, 2016
45. Chemistry AP

The equilibrium constant for the formation of phosphorus pentachloride is 1.9. If the partial pressure of each gas is 0.5 atm, will the reaction (as written) proceed forward or backward to reach equilibrium? PCl3(g) + Cl2(g) PCl5(g) A. Forward, because K

asked on September 20, 2016
46. ap chemistry

Which of the following statements about the pH scale is not true? A. In a pH expression, the hydronium ions, H3O+, can be abbreviated simply as H+. B. A solution with a pH of 4 has twice the [H+] of a solution with a pH of 2. C. The pH scale is based on a

asked on September 15, 2016
47. ap chemistry

When are more products of a reaction available initially than at equilibrium? A. K = 0 B. Q < K C. Q = K D. Q > K

asked on September 15, 2016
48. chemistry

When are more products of a reaction available initially than at equilibrium? A. K = 0 B. Q < K C. Q = K D. Q > K

asked on September 12, 2016
49. chemistry

Given the following solubility constants, which list arranges the solutes in order of increasing solubility? CaCO3: Ksp = 2.8 × 10-9 Ca(OH)2: Ksp = 5.5 × 10-6 CaSO4: Ksp = 9.1 × 10-6 CaF2: Ksp = 5.3 × 10-9 A. CaSO4 < Ca(OH)2 < CaCO3 < CaF2 B. CaSO4 <

asked on September 12, 2016
50. chemistry

Given the equilibrium concentrations in the table, what is the equilibrium constant for the synthesis of ammonia at this temperature? 3H2(g) + N2 2NH3(g) A. 0.0035 B. 0.014 C. 0.066 D. 0.017

asked on September 12, 2016
51. chemistry

What change do you expect if the value of the reaction quotient is greater than the value of the equilibrium constant? A. The rate of the forward reaction is greater than the rate of the reverse reaction. More reactant forms. B. The rate of the forward

asked on September 12, 2016
52. chemistry

Which of the following is true about the results of a neutralization reaction? A. An acid and a base form water and salt. B. Water reacts with a base to form the hydroxide ion. C. Water reacts with an acid to form the hydronium ion. D. An acid and a base

asked on September 12, 2016
53. chemistry

What does a buffer do? A. It resists a change in pH when H+ or OH- is added to a solution. B. It prevents an acid-base reaction from happening. C. It prevents an acid or base from being neutralized. D. It prevents a salt from forming in solution.

asked on September 12, 2016
54. chemistry

Why is HCl required in the stomach? A. To transport proteins into the small intestines B. To help absorb other acids in the stomach C. To catalyze the digestion of carbohydrates D. To aid in the digestion of proteins

asked on September 12, 2016
55. chemistry

The [OH-] ion concentration of a sample is 1 × 10-10 M. What is the concentration of [H+] in the sample at 25°C? A. 1 × 10-14 M B. 1 × 10-4 M C. 1 × 10-10 M D. 1 × 10-6 M

asked on September 12, 2016
56. chemistry

Which of the following chemical reactions represents a neutralization reaction? A. CH4 + 2O2 CO2 + H2O B. HCl + NaOH H2O + NaCl C. NH3 + H2O NH4++ OH- D. CH3COOH + H2O CH3COO- + H3O+

asked on September 12, 2016
57. chemistry

Which of the following is true about the results of a neutralization reaction? A. An acid and a base form water and salt. B. Water reacts with a base to form the hydroxide ion. C. Water reacts with an acid to form the hydronium ion. D. An acid and a base

asked on September 11, 2016
58. chemistry

What is the general form for the simplest type of acid-base reaction? A. acid + base salt + water B. acid + base base + acid C. acid + base H+ + OH- D. acid + base solid + water

asked on September 11, 2016
59. chemistry

A, B, C, and D are 4 salts whose Ksp values are 9.21 × 10-8, 7.44 × 10-11, 1.07 × 10-21, and 38.65, respectively. What is the correct arrangement of their solubilities in decreasing order? A. D, A, B, C B. C, B, A, D C. A, B, D, C D. C, B, D, A

asked on September 11, 2016
60. chemistry

Acetic acid is known to be a weak acid. What will happen to the acidity of the solution when sodium acetate is added to acetic acid? A. The solution will become more acidic. B. The pH will remain the same. C. The solution will become less acidic. D. The

asked on September 11, 2016
61. chemistry

Which of the following bases could you write an equilibrium expression for? A. Ba(OH)2 B. KOH C. NaOH D. NH3

asked on September 11, 2016
62. chemistry

During a chemical reaction, if Q = K, what can be said about the reaction? A. The reaction still proceeds in both directions, but the net result is that the reactant and product concentrations do not change. B. The amount of product is always equal to the

asked on September 11, 2016
63. chemistry

Which of the following is true of the solubility product constant? A. It is the product of the initial concentrations of the ions in a solution. B. It is an equilibrium constant. C. It is an equilibrium position. D. Its value changes in the presence of a

asked on September 11, 2016
64. chemistry

Which equation would describe the following equilibrium constant? Kc = [Bi3+]2[S2-]3 A. Bi2S3(s) + 6HCl(aq) 2BiCl3(aq) + 3H2S(aq) B. Bi2S3(s) 3Bi2+(aq) + 2S3-(aq) C. BiS(s) Bi3+(aq) + S2-(aq) D. Bi2S3(s) 2Bi3+(aq) + 3S2-(aq)

asked on September 11, 2016
65. chemistry

What happens to the following reaction at equilibrium if the pressure is decreased? 2H2(g) + O2(g) 2H2O(g) A. The equilibrium shifts left because Q < K. B. The equilibrium shifts right because Q < K. C. The equilibrium shifts right because Q > K. D. The

asked on September 11, 2016
66. chemistry

What is the equilibrium expression for the change when iron(II) chloride dissolves? FeCl2(s) Fe2+(aq) + 2Cl-(aq)

asked on September 11, 2016
67. science ap chemistry

What is the equilibrium expression for the following acid dissociation reaction? CH3COOH + H2O CH3COO- + H3O+ A. [CH3COO-][H3O+]/[CH3COOH][H3O] B. [CH3COOH][H2O]/[CH3COO-][H3O+] C. [CH3COOH]/[CH3COO-][H3O-] D. [CH3COO-][H3O+]/[CH3COOH]

asked on September 10, 2016
68. math homework

use the limit process to find the slope of the graph of 'square root' x+8 at (8,4) a. 4 b. 1/4 c. the slope is undefined at this point d. 1/8 e. infinity

asked on August 31, 2016
69. math

solve the system of equations for x and y { x^2 - 11x -y =-24 x^2 - 11x + y = -24

asked on August 31, 2016
70. maths

evaluate the expression (94) (93) a. 94 b. 93 c. 1 d. 88 e. -5

asked on August 31, 2016
71. maths

find the area of the parallelogram that has the vectors as adjacent sides u = -2i + j + 5k v = 4i - 3j - 3k a. 11 b. squareroot 26 c. 86 d. 2 squareroot 86 e. 1

asked on August 30, 2016
72. math homework help please?!!

determine lim f(x) x -> 1 where f(x) = { 13 - x^2, x < or equal to 1 11 - x, x > 1 a. 11 b. limit does not exist c. 13 d. 10 e. 12

asked on August 30, 2016
73. Rainy can you help me with this question?!

find the values of x and y that will make the matrix equal [x y] 1 9 = [3 5] 1 9 the answer options are a. x=-3 y=-5 b. x=5 y=3 c. x=-3 y=5 d. x=3 y=5 e. no solution

asked on August 30, 2016
74. chemistry

What is the equilibrium expression for the following acid dissociation reaction? CH3COOH + H2O CH3COO- + H3O+ A. [CH3COO-][H3O+]/[CH3COOH][H3O] B. [CH3COOH][H2O]/[CH3COO-][H3O+] C. [CH3COOH]/[CH3COO-][H3O-] D. [CH3COO-][H3O+]/[CH3COOH]

asked on August 22, 2016
75. chemistry

A reaction has an equilibrium constant very much less than 1. Will the reaction proceed spontaneously? A. Yes, because products are favored and deltaG° < 0. B. Yes, because reactants are favored and deltaG° > 0. C. No, because reactants are favored and

asked on August 22, 2016
76. chemistry

If the equilibrium constant is much less than 1, how can you tell where the equilibrium lies? A. Reactants are in the numerator of the equilibrium expression, so equilibrium lies toward the reactants. B. Products are in the numerator of the equilibrium

asked on August 22, 2016
77. chemistry

What information does an equilibrium constant give about a reaction? A. It tells how long it takes the reaction to reach equilibrium. B. It tells how much energy is required for the reaction to happen. C. It tells what the rate constant of the reaction is

asked on August 22, 2016
78. chem

Under constant pressure, a system of gases is sealed in a cylinder and then allowed to expand. What can you conclude about the work associated with this change? A. Work is negative and is done to the system. B. Work is negative and is done by the system.

asked on August 20, 2016
79. chem

Knowing what information would allow you to order gas molecules according to their velocity? A. Pressure and temperature B. Volume and molecular mass C. Pressure and volume D. Temperature and molecular mass

asked on August 20, 2016
80. science

Which of the following terms are present in the rate law? A. The rate constant, the concentration of the reactants, and the order of the reactants B. The rate constant and the concentration of the reactants C. The rate constant and the temperature of the

asked on August 20, 2016
81. please help with this trigonometric identity!

verify this trigonometric identity cos 'a' - cos 'b' / sin 'a' + sin 'b' + sin 'a' - sin 'b' / cos 'a' + cos 'b' = 0 please help me with this! i don't know how to do it!

asked on August 19, 2016
82. Chem

Knowing what information would allow you to order gas molecules according to their velocity? A. Pressure and temperature B. Volume and molecular mass C. Pressure and volume D. Temperature and molecular mass

asked on August 19, 2016
83. chemistry help?!

Which properties result from minimal interactions between molecules in a gas? A. A characteristic geometric shape and limited particle motion B. A random shape, limited particle motion, and inability to be compressed C. A random shape, significant particle

asked on August 19, 2016
84. chemistry help

How do forces determine the shape of a protein? A. The covalent bonds in the protein determine the shape of the protein. B. The protein folds into complex shapes through intermolecular forces. C. Polar parts of a protein are repelled by water. D.

asked on August 19, 2016
85. them

How do intermolecular forces determine the vapor pressure of a liquid? A. A nonpolar compound has a low vapor pressure because of London dispersion forces. B. A compound that can form hydrogen bonds has a low vapor pressure. C. A polar compound has a high

asked on August 19, 2016
86. Chem

Which of the following statements is (or are) true? I Hydrogen bonds occur between two hydrogen atoms. II Hydrogen bonding occurs between a hydrogen atom and an oxygen atom within a molecule. III Hydrogen bonding requires a molecule containing a large

asked on August 19, 2016
87. chemistry help?!

Which statement correctly pairs the order of a reaction with the units for the rate constant? A. third order; s/M B. zero order; 1/(M2) C. second order; 1/(M•s) D. first order; 1/M

asked on August 19, 2016
88. chemistry help?!

Which of the following terms are present in the rate law? A. The rate constant, the concentration of the reactants, and the order of the reactants B. The rate constant and the concentration of the reactants C. The rate constant and the temperature of the

asked on August 19, 2016
89. Steve help please?!?!

How many moles of oxygen are produced from the decomposition of 36.7 g of dinitrogen pentoxide? 2N2O5 4NO2 + O2 A. 3.19 mol B. 0.340 mol C. 0.170 mol D. 5.44 mol Hi Steve, I posted this question the other day but really don't know how to answer it. Can you

asked on August 19, 2016
90. chemistry

Which of the following terms are present in the rate law? A. The rate constant, the concentration of the reactants, and the order of the reactants B. The rate constant and the concentration of the reactants C. The rate constant and the temperature of the

asked on August 18, 2016
91. Science - Chemistry

If the rate law of a chemical reaction is k[NH4+]2[NO2–], what is the order of the reaction? 1. The order of the reaction cannot be determined. 2. 3 3. 1 4. 2

asked on August 18, 2016
92. Chem

During which stroke of a four-stroke internal combustion engine is the system's temperature raised because work is done to the gases? A. Compression stroke B. Power stroke C. Exhaust stroke D. Intake stroke

asked on August 18, 2016
93. Chem

_____________ are a type of intermolecular force that _____________ . A. London forces; occur between permanent dipoles B. London forces; are the attractive forces between all molecules due to instantaneous dipoles C. Hydrogen bonds; are weaker than

asked on August 18, 2016
94. Them

How many moles of oxygen are produced from the decomposition of 36.7 g of dinitrogen pentoxide? 2N2O5 4NO2 + O2

asked on August 18, 2016
95. Calculus

What are the zeroes of the polynomial equation, 𝑦 = 𝑥3 + 3𝑥2

asked on August 17, 2016
96. Chemistry

An antifreeze solution is prepared containing 40.0 g of ethylene glycol (molar mass = 62.0 g/mol) in 60.0 g of water. Calculate the freezing point of this solutions A.-20.1°C B.0.518°C C.20.1°C D.120.1°C

asked on July 30, 2016
97. math

what is 875 multiplied by 3/2?

asked on May 25, 2016
98. World History

Winning which World War II battle allowed the Allied forces to protect strategic locations for trade and resources in the Mediterranean region? Battle of El Alamein**** Battle of Stalingrad Battle of Britain Battle of Midway

asked on May 14, 2016
99. Chemistry

How many grams of sodium sulfate na2so4 must be added to make 500ml of a 12.5 M sodium sulfate solution

asked on May 10, 2016
100. English II

From the three windows, through the cracks of the old wooden shutters, came only a few scattered sunbeams which, in the midst of the obscurity, made a soft brightness that bathed surrounding objects in a diffused and tender light. Which word, if

asked on May 9, 2016