# jess

Popular questions and responses by jess
1. ## geometry

the perimeter of a triangle is 59 inches. the longest side is 11 inches longer than the medium side, and the medium side is 3 inches more than the shortest side. Find the length of each side.

2. ## english

what does these quote mean? 1.)"my life for itself and not for a spectacle" 2.)An institution is the lengthened shadow of a man. 3.) Life only avails, not the having lived. 4.) Insist on yourself; never imitate Thanks for your help!

3. ## history

Which Chinese religious text, whose title translates to The Book of Changes, influenced Hinduism in India?

4. ## chemistry

I keep thinking that 3 is the van't hoff factor for ammonium chloride, but I keep getting my answer wrong. Any ideas?

5. ## Math

A theater group made appearances in two cities. The hotel charge before tax in the second city was \$1000 higher than in the first. The tax in the first city was 4% , and the tax in the second city was 7% . The total hotel tax paid for the two cities was

6. ## AP Chem

CH3CH2NH2(aq) + H2O(l) CH3CH2NH3+(aq) + OH-(aq) Kb = 5.0e-4 Ethylamine, CH3CH2NH, a weak base reacts with water according to the equation above. A 50.0 mL sample of a ethylamine solution is found to have a pH of the solution 11.60. (a) Write the expression

7. ## Math - Limits/Derivatives

Suppose that for a company manufacturing calculators, the cost, revenue, and profit equations are given by C = 70,000 + 20x R = 300x - (x^2 / 20) P = R - C where production output in 1 week is x calculators. If production is increasing at a rate of 600

8. ## chemistry

23) The equilibrium constant for the gas phase reaction 2NH3 (g) N2 (g) + 3H2 (g) is Keq = 230 at 300 °C. At equilibrium, __________. A) reactants predominate B) products predominate C) only products are present D) roughly equal amounts of products and

9. ## Math - Decimals

Is 0.052 or 0.05 a bigger number?

10. ## Algebra

allan borrowed \$6400 from his father to buy a car. he repaid him after 9 months with interest of 8% per year. find the total amount he repaid.

11. ## math

the longest straight line that can be drawn to connect two point on the circumference of a circle whose radius is 9 inches is A. 9 inches B. 18 inches C. 28.2743 D. 4.5 inches is the correct answer b?

12. ## STATISTICS HELP!!!!!

Bender Electronics buys keyboards for its computers from another company. The keyboards are received in shipments of 175 boxes, each box containing 30 keyboards. The quality control department at Bender Electronics first randomly selects one box from each

13. ## Calculus - Integrals

The projected rate of increase in enrollment at a new college is estimated by dE/dt = 6,000(t+1)^-3/2 where E(t) is the projected enrollment in t years. If the enrollment is 3,000 now (t=0), find the projected enrollment 15 years from now.

14. ## PHYSICS

A wet bar of soap slides freely down a ramp 12.0 m long, inclined at 74.0 degrees. How long (in seconds) does it take to reach the bottom? (Neglect friction.)

15. ## Physics Part A HELP!!

4.) In coming to a stop, a car leaves skid marks 80m long on the highway. Assuming a DEceleration of 7.00 m/s^2 (m/s/s), estimate the speed of the car just before breaking. 6.) A car traveling @ 90km/h strikes a tree. The front end of the car compresses

log x = 1/2 (log a + Log b - log c) express x in terms of a,b,and c.

17. ## Exexponential Growth Modeling

Researchers find that there are 60 Raccoons on an island. When they return a year later, they find that there are 84. What is the annual population growth rate for the raccoons?

18. ## Math

Sue decides to collect postcards. She starts her collection with seven cards. Every week, she buys three more cards to add to her collection. How many weeks will it take her to have more than 30 cards? 11 7 8 30 Can somone help me figure out the equation

19. ## Chemistry

1. A combination reaction may also be a displacement reaction. True or False 2. The combustion of an element is always a combination reaction. True or False For number 1, I first thought true, but then again, nothing is being displaced in a combination

20. ## Geometry

In a garden, a birdbath 2ft 6 in. tall casts an 18-in. shadow at the same time an oak tree casts a 90-ft shadow. How tall is the oak tree?

21. ## Calculus - Optimization

A fence is to be built to enclose a rectangular area of 800 square feet. The fence along 3 sides is to be made of material \$4 per foot. The material for the fourth side costs \$12 per foot. Find the dimensions of the rectangle that will allow for the most

22. ## Math

A certain triangle has a perimeter of 3080 mi. The shortest side measures 71 mi less than the middle​ side, and the longest side measures 373 mi more than the middle side. Find the lengths of the three sides.

23. ## english

'By now, everyone knows that eating right and exercising are important.' What change should be made to this sentence? A. Replace knows with knows' B. Insert comma after right C. Replace important with important? D. No correction necessary 'People who

24. ## math

How can you use subtraction to complete an addition pattern? use this exercise as an example: 32, 39, 46, 53, 60, 67.

25. ## history

Which identifies the conflict that arose over rubber production in the Belgian Congo? The desire of the Congolese to keep control of their rubber production led to an international war between Belgium and the Congo. Global demand for rubber and a lust for

26. ## Biology!!

1. what's a huge difference between the chemical equations for Respiration and Alcoholic fermentation &... What determines whether a facultative organism will go through respiration or fermentation *For the first part of the Question, (I looked it up but I

27. ## Chemistry

Chromium (III) iodate has a Ksp at 25°C of 5.0 x 10–6. 125 mL of a solution contains 0.0050 mol L–1 Cr (III) ion. What is the molar solubility of chromium (III) iodate at 25°C? a. 8.4 x 10–2 mol L–1 b. 2.2 x 10–3 mol L–1 c. 6.3 x 10–2 mol

28. ## Calculus

Given that the antiderivative of f(x) = e4x is F(x) = 1/4e^4x+C, evaluate the integral from 0 to 2 of e^4x, dx. e^8 1/4(1-e^8) 1/4(e^8-1) 1/4e^8 (MY ANNSWER)

29. ## english

In the Odyssey, which of Odysseus' traits allows him to triumph in the bow-and-arrow challenge that Penelope sets for her suitors? (1 point) his love for Penelope his loyalty to the gods **** his pride in his bow his skill as a marksman i think B

30. ## Finance - Capital Budgeting/Bid Price

We have been requested by a large retailer to submit a bid for a new point-of-sale credit checking system. The system would be installed, by us, in 89 stores per year for three years. We would need to purchase \$1,300,000 worth of specialized equipment.

31. ## Macroeconomics

The money supply in Freedonia is \$200 billion. Nominal GDP is \$800 billion and real GDP is \$400 billion. Assuming that velocity is stable, if real GDP grows by 10 percent this year, and if the money supply does not change this year, what is the change of

32. ## Bio HELP!!!!

what is the name of the process throughh which polypeptides, polysaccharides or triglycerides are catabolised (broken down)?

A car slows down from +32 m/s to +8 m/s in 4s. Calculate the acceleration .

34. ## chemistry

The two isotopes of uranium, 238U and 235U, can be separated by effusion of the corresponding UF6 gases. What is the ratio (in the form of a decimal) of the root-mean-square speed of 238UF to that of 235UF6 at constant temperature?

35. ## Maths

If g(x)>0 for all real values of x, which of the following could be function g? a) g(x)= x+1 b) g(x)=x-1 c) g(x)= x^2+1 d) g(x) = x^2-1 e) g(x) = x^3 + 1

36. ## english

In the story told by Outa Karel in “The Little Red Tortoise,” why is the little red tortoise considered a dynamic character? Select all that apply. The Little Red Tortoise 1.He shows different emotions, from being brave to face the Blue One to being

37. ## Math

A student experiences difficulty with malfunctioning alarm clocks. Instead of using one alarm clock, he decides to use three. What is the probability that at least one alarm clock works correctly if each individual alarm clock has a 90% chance of working

38. ## physics

A catapult launches a cat from ground level to a target located on the ground. The cat leaves the catapult moving at 100 km/h at an angle of 40º. a) What is the cat’s velocity half-way through the trajectory (size and direction)? b) What is the cat’s

39. ## Math

A boy is mowing a rectangular lawn 40ft long and 30ft wide. He has cut all of it except for a rectangle that is 20ft long and 15ft wide. What fractional part of the lawn remains uncut? I need helping figuring out how to solve this. My answer sheet says its

40. ## Calculus - Optimization

A parcel delivery service a package only of the length plus girth (distance around) does not exceed 24 inches. A) Find the dimensions of a rectangular box with square ends that satisfies the delivery service's restriction and has a maximum volume. What is

41. ## algebra 2

write an explicit formula for the sequence of 1/2, 3/7, 1/3, 5/19, 3/14

42. ## Precalculus

If sinx= -1/4 and x terminates in the third quadrant, find the exact value of sin2x My answer is sqrt-15/8

43. ## Physics

If a projectile is fired straight up at a speed of 10 m/s, the total time to return to its starting position is about ? -Hfinal=hinitial+ vinitial*t -4.9t^2 0=0+10t-4.9t^2 when I solved for t I got .49t. Also, where did 4.9 come from? A man leans over the

44. ## History

What was the result of the passage of the Fourteenth Amendment? - Chinese immigration was suspended for 10 years. - All African Americans formally gained US citizenship. - A basic literacy test was required to become a US citizen. - Irish immigration

45. ## biology

What must a phenylketonuria patient leave out of his or her diet? a specific amino acid all carbohydrates some specific carbohydrates all amino acids

46. ## physics

After landing safely on the target the cat tries another projectile apparatus. This time the cat is shot out of a cannon over a 30 m high wall. The cat is launched at an angle of 55º0 and can be assumed to be at ground level during launch. With what speed

47. ## Science

What is the density of a book whose mass is 1,800 g and whose volume is 300 cm3? *My Answer*You want to identify the numbers first, density = mass ÷ volume. Which would give you, 1800g ÷ 300 cm³ = 6 g/cm³. *Cant Figure Out *What is the mass of a ball

48. ## Math

A charter fishing company buys a new boat for \$224,000 and assumes that it will have a trade-in value of \$115,200 after 16 years. Find a linear model for the depreciated value V of the boat t years after it was purchased.

49. ## physics

at what altitude should a satellite be placed into circular orbit so that its orbital period is 48 hours? the mass of the earth is 5.976x10^24 kg and the radius of the eatrh is 6.378x10^6 m.

50. ## math

The points A (7,6) and B (2,1) are 3 units and 2 units respectively from the line L and are on the opposite sides of L. Find the coordinates of the point where the interval AB crosses the line L.

51. ## Literature

Please can you check my answer.. 13. According to Renaissance philosophy, commoners often represent A. reason. C. pride. B. love. D. appetite. I think it it... B. love. It that correct ?

52. ## History

Why is the elasticity of the Constitution important to minority groups

53. ## math

the greatest common factor of 2x4x6x8x10 and 1x2x3x4x5 is A. 2 B. 4 C. 8 D. 120

54. ## Chemistry

The temperature of a lead fishing weight rises from 26 C to 38 C as it absorbs 11.3 J of heat. What is the mass of the fishing weight in grams? ( The specific heat capacity of lead is 0.128 J /g C )

55. ## Physics

A 72.0 kg swimmer jumps into the old swimming hole from a tree limb that is 4.00 m above the water. Part A- Use energy conservation to find his speed just as he hits the water if he just holds his nose and drops in. Part B- Use energy conservation to find

56. ## Physics

A spring is 16.2 cm long when it is lying on a table. One end is then attached to a hook and the other end is pulled by a force that increases to 28.0 N , causing the spring to stretch to a length of 19.0 cm . Part A What is the force constant of this

57. ## maths

a car travels due south for 3km the due east for 8km. What is the true bearing of the car from the starting point?

58. ## math

i have four digits i am more than 2500 i am less than 3000 my hundred digits id 6 my tens digit is one less than my hundreds digit my unit digit is 0 what number am i?

59. ## english

II. By the end of Romeo and Juliet, Paris and Romeo, both of whom loved Juliet, are dead. The two characters, however, are very different. Write an essay comparing and contrasting the two men. The introduction of your essay should include an

60. ## College Algebra

Solve the problem. Jon has 1162 points in his math class. He must have 86% of the 1500 points possible by the end of the term to receive credit for the class. What is the minimum number of additional points he must earn by the end of the term to receive

61. ## chemistry

Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO(s) + H2O(l) ¨ Ca(OH)2(s) In a particular experiment, a 2.00-g sample of CaO is reacted with excess water and 2.14 g of Ca(OH)2 is recovered. What is the percent

62. ## calculus

Find the differential dy of the given function: y=xcosx would this just be dy=(cosx-xsinx)dx

63. ## physics

A meter stick is pivoted at its 50-cm mark but does not balance because of non-uniformities in its material that cause its center of gravity to be displaced from its geometrical center. However, when masses of 150 and 200 grams are placed at the 10-cm and

64. ## Stats

The Economic Policy Institute periodically issues reports on worker’s wages. The institute reported that mean wages for male college graduates were \$37.39 per hour and for female college graduates were \$27.83 per hour in 2017. Assume the standard

65. ## biology

Which statements accurately describe the electron transport chain? Select all that apply. a: It produces carbon dioxide. b: It produces oxygen. c: It produces water and a high amount of ATP. d: It uses electrons released from NADH and FADH2.

66. ## physics

ethys, one of Saturn's moons, travels in a circular orbit at a speed of 1.1x104 m/s. The mass of Saturn is 5.67x1026 kg. Calculate a) the orbital radius in kilometres.( i know how to do this part, the answer is 3.1x10^8 m) b) the orbital period in Earth

67. ## Chemistry

Classify the substances as atomic elements, molecular elements, molecular compounds, or ionic compounds. CO2, HCl, Al2S3, Cd, F2,Ag,O2,NaCl

68. ## Alg

describe the end behavior of the graph of the polynomial function. Then evaluate the !@#\$%^&ntion for x=-4, -3, -2, -1, 0, 1, 2, 3, 4. I'm confused on this. Help.

69. ## Math - Limits/Derivatives

If a price-demand equation is solved for p, then price is expressed as p = g(x) and x becomes the independent variable. In this case, it can be shown that the elasticity of demand is given by E(x) = - [g(x) / xg'(x)]. Use the given price-demand equation to

70. ## physics

An object moves along a circular path with a constant speed, |⃗vo|. (Semi Circle with point A on one side point B on the other. Looks like a 90 degree angle with points A and B on either side of the hypotenuse.) The average acceleration in going from A

71. ## chemistry

iron+sulphur together are a mixture of small grains yellow and dark grey.Its chemical symbol is 'Fe + S'.When it reacts with oxygen they create a new chemical substance; Iron Sulphide. What do you put for 'explain the reaction using the Big Idea of Energy?

72. ## science

What i the normal anatomy of sickle cell anemia?

73. ## English Lit

I have to 'discuss the language' of some quotes which I have taken out of the text which I'm doing, but I'm not sure what to do. With this, do I have to talk about punctuation marks, specific words? Thanks!

74. ## algebra

what happened when two fruit companies merged? this question is on a worksheet i have to do.

75. ## biology

When a biochemical reaction occurs, what is the chemical substance that results? catalyst reactant substrate product

76. ## Chemistry

How do we know when x is negligible when calculating equilibrium concentrations?

77. ## Chemistry

1. The value of ΔH° for the reaction below is -6535 kJ. _________ kJ of heat are released in the combustion of 16.0 g C6H6 (l). 2C6H6 (l) + 15O2 (g) --> 12CO2 (g) + 6H20 (l) 3. Given the following reactions CaCO3 (s) --> CaO (s) + CO2 (g) ΔH = 178.1 kJ

78. ## chemistry

The equilibrium constant for the reaction Cu3(PO4)2(s) 3 Cu2+(aq) + 2 PO43–(aq) is K = 1.40 x 10–37. Suppose that a beaker is filled to 1 L with a solution containing [Cu2+] = [PO43–] = 10.0 nM, and 300.0 g Cu3(PO4)2 . Which of the following

79. ## Algebra 2

How would you write a polynomial function with rational coefficients so that P(x)=0 has the given roots? The given roots are -2,-2,3,5

80. ## Personal fitness

There are three important benefits to the warm up session: (1 point) flexibility is increased, the muscle is pushed to its full potential, and the chance of dizziness or fainting caused by the pooling of blood in the extremities is reduced. aids in the

81. ## Chemistry

If 3.0 liters of oxygen gas react with excess carbon monoxide at STP, how many liters of carbon dioxide can be produced under the same conditions? 2 CO (g) + O2 (g) ---> 2 CO2 (g)

82. ## Chemistry

1. Write a balanced molecular equation for the reaction of solid AgNO3 with aqueous NaCl. Be sure to include the correct number of coefficients and the state of the species (aq, s, l or g). 2. Write the total ionic equation for this reaction, including all

83. ## Chemistry

Use standard enthalpies of formation to determine ΔHorxn for: 2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(l) Enter in kJ.

84. ## Chem

An electrochemical cell based on the decomposition of H2O2 can be constructed based on the half-reactions in the table below. Half-Reaction | Standard Reduction Potential, E° H2O2+ 2e- => 2 OH- | 0.88 V O2+ 2 H2O + 2e- => H2O + 2 OH- | -0.15 V (d)

85. ## math

this was emily's full day yesterday: she spent 8 hours sleeping, 1 hour in the shower, 6 hours in class, 2 hours eating and snacking, 4 hours studying, and 3 hiurs watching tv. What percent of her day was spent studying.

86. ## math

a movie theater has 250 seats. One hundred tickets have been sold. What percent of fhe theater is filled?

87. ## Physic

A block (mass 2.4 kg) is hanging from a massless cord that is wrapped around a pulley -3 2 (moment of inertia of the pulley = 1.3 x 10 kg·m ), as the drawing shows. Initially the pulley is prevented from rotating and the block is stationary. Then, the

Fats help maintain your cell membranes. (1 point) True False 12. Your body does not use energy when you sleep. (1 point) True False 13. People with anorexia nervosa eat large amounts of food and then purge. (1 point) True False 14. Your body image is the

89. ## Physical Science

The conversion of water to ice is considered a physical change, whereas the conversion of iron to rust is considered a chemical change. Why?

90. ## Precalculus

2-3cosx=5+3cosx 0 degrees is less than or equal to x less than or equal to 180 degrees Can you please show me step by step in detail. Please do not skip a step. Thanks!

91. ## physics

A canoe of mass 70 kg with a paddler of mass 55 kg are in a river. If the river's current exerts a force of 15 N [E] while the paddler is paddling with an average force of 22 N [N38degreesW], find the acceleration of the canoe and paddler. Use both a

92. ## english

Which element of a short story would be most important to a story about a mad scientist stealing a secret weapon?

93. ## Chemistry

I have a question which asks... What is the Oxidation number of Nitrogen in Cu(NO3)2 I know the answer is 5+ but how do you get that?? Cu= 2+ O= 2- (Theres 3 of them so -2x3=-6...then, theres a two out of the brackets so 6- x 2 =-12) +2 - (-12)= -10? And

94. ## Chemistry

I have a question which asks... What is the Oxidation number of Nitrogen in Cu(NO3)2 I know the answer is 5+ but how do you get that?? Cu= 2+ O= 2- (Theres 3 of them so -2x3=-6...then, theres a two out of the brackets so 6- x 2 =-12) +2 - (-12)= -10? And

95. ## physics

a 1 kg mass is attached to a spring hanging vertically and hangs at rest in the equilibrium position. the spring constant of the spring is 1 n/cm. the mass is pulled downward 2 cm and released. what is the speed of the mass when it is 1 cm above the point

96. ## Chemistry

How many moles of HCl are present in a 50mL 3M solution of HCl?

97. ## geometry

Triangle ABC has the following angle measures. Angle A = 44. Angle B = 4x. Angle C = 2x + 16. Find the measure of angle C.

98. ## Chemistry

For each reaction, complete and balance the equation and give the net ionic equation. a) KOH(aq)+ZnCl2(aq)-> KCl2+ZnOH The second half of the equation is how i had done on the exam but he said its not balanced. How do I balance this? How would it look. I