# Jk

Most popular questions and responses by Jk
1. ## precalculus

find an hyperbola equation with foci (0, +/-8) and asymptotes; y=+/-1/2x?

asked on April 16, 2015
2. ## chemistry help

A 15.00 mL sample of an unknown monoprotic weak acid solution is titrated with 0.35 M NaOH. The initial buret reading is 0.23 mL. The phenolphthalein indicator turns the solution light pink when the buret reads 29.58 mL. B. How many moles of NaOH were

asked on April 1, 2015
3. ## English

1. A place that has experienced a cataclysm has a. diminished in size b. grown green and lush c. suffered violent change *** d. begun to give off rays of light 2. In which of the following sentences is the word conceivable used correctly? a. Your goal of

asked on October 30, 2018
4. ## Math

What is the best estimate for the sum of 3/8 and 1/12?

asked on March 27, 2019
5. ## chemistry

A 15.00 mL sample of an unknown monoprotic weak acid solution is titrated with 0.35 M NaOH. The initial buret reading is 0.23 mL. The phenolphthalein indicator turns the solution light pink when the buret reads 29.58 mL. A. what volume of 0.35 M NaOH was

asked on April 1, 2015
6. ## English

Vinegar (by Roger McGough) sometimes i feel like a priest in a fish and chips queue quietly thinking as the vinegar runs through how nice it would be to buy supper for two (1967) Poem for Roger McGough (by Adrian Henri) A nun in a supermarket standing in

asked on December 11, 2011
7. ## math

Sam bought a new car for \$26,500. The car depreciates approximately 13% of its value each year. A) What is the decay factor for the value of this car? b)  Write an equation to model the decay value of this car? c)  What will the value of the car be in 10

asked on June 27, 2014
8. ## chemistry

a 3.54 grams solid sample of an unknown monoprotic acid was dissolved in distilled water to produce a 47.0 mL solution at 25 degrees. This solution was then titrated with 0.2 M NaOH. The equivalence point was reached when 35.72 mL of 0.2 M NaOH was

asked on April 1, 2015
9. ## Math

What is the value of the digit 9 in the number 597,184?

asked on March 26, 2019
10. ## math

A ferris wheel is 35 meters in diameter,and can be boarded at ground level. The wheel turns in a counterclokcwise direction, completing one full revolution every 5 minutes. Suppose that a t=0 you are in the three o'clock position. Write a formula, using

asked on August 13, 2010
11. ## Math

What is the quotient of 396 divided evenly by 12?

asked on March 27, 2019
12. ## chemistry help

a 3.54 grams solid sample of an unknown monoprotic acid was dissolved in distilled water to produce a 47.0 mL solution at 25 degrees. This solution was then titrated with 0.2 M NaOH. The equivalence point was reached when 35.72 mL of 0.2 M NaOH was

asked on April 1, 2015
13. ## English

What words are articles?

asked on March 27, 2019
14. ## Math

What is the value of the following expression?

asked on March 27, 2019
15. ## COLLEGE CHEMISTRY HARD

calculate the ph at the equivalence point for the titration of 0.01 M Ch3COOH with 0.1 M NaoH ka= Ch3Cooh 1.8E-5 idek how to do it?

asked on March 28, 2015
16. ## english

Vinegar (by Roger McGough) Poem for Roger McGough (by Adrian Henri) sometimes A nun in a supermarket i feel like a priest standing in the queue in a fish and chips queue Wondering what it’s like quietly thinking To buy groceries for two. as the vinegar

asked on December 11, 2011
17. ## Math

What is the value of the expression? 30 - (5 x 4) + 2

asked on March 27, 2019
18. ## chemistry

calculate the ph at the equivalence point for the titration of 0.01 M Ch3COOH with 0.1 M NaoH ka= Ch3Cooh 1.8E-5 idek how to do it?

asked on March 28, 2015
19. ## Science

How does earths rotation cause day and night?

asked on February 13, 2019
20. ## chemistry

In the following questions, assume that no excess distilled water was added from a wash bottle during the titration of 10.00 mL of vinegar with your standardized solution of NaOH. A. calculate the pH of vinegar. B. what was the pH of the solution after

asked on April 1, 2015
21. ## chemistry

Where is an electron in 3Py orbital most likely to be found and where does the probability it vanish?

asked on December 26, 2013
22. ## Math

Three angles of a quadrilateral are in the ratio 1:2:3. The sum of the least and the greatest of these angles is 200°. Find all the four angles of the quadrilateral.

asked on August 23, 2017
23. ## math

sinx+ siny/ (cosx+cosy)= tan 1/2 (x+y) prove this identity

asked on August 13, 2010
24. ## chemistry

calculate the pH after 0.02 mol NaOH is added to 1.00 L of .1 M sodium propanoate NaC3H5O2

asked on March 29, 2015
25. ## chemistry

calculate the ph at the equivalence point for the titration of .1 M NH3 and .1 M HCl. kb NH3= 1.8E-5 how you do it?

asked on March 28, 2015
26. ## chemistry help

In the following questions, assume that no excess distilled water was added from a wash bottle during the titration of 10.00 mL of vinegar with your standardized solution of NaOH. A. calculate the pH of vinegar. B. what was the pH of the solution after

asked on April 1, 2015
27. ## precalculus

find the eccentricity to identify the conic, then sketch the conic and its directrix r=1/1-cos theta r=2/3+2 sin theta r=4/1-2 cos theta

asked on April 22, 2015
28. ## precalculus

find the eccentricity to identify the conic, then sketch the conic and its directrix r=1/1-cos theta r=2/3+2 sin theta r=4/1-2 cos theta

asked on April 22, 2015
29. ## math - exponent laws

evaluate -(11/17^-10/(9/5)^(1/10) answer from Reiny: (-11/-17)^-10 = 1/(11/17)^10 = 77.725... (I stored that in A on my calculator) (9/5)^(1/10) = 1.0605.. so -(11/17^-10/(9/5)^(1/10) = -77.725... /1.0605... = -73.28837824 --- do we need to reciprocal

asked on February 10, 2015
30. ## precalculus help

Let z1=2(cos 2pi/3+isin 2pi/3) what are z1^(1/3)? do not even know how to apply demoivre theorem?

asked on March 31, 2015
31. ## SUPER HARD CHEMISTRY

a solution containing 100.0 mL of 0.135 M CH3COOH (ka=1.8E-5) is being titrated with 0.54 M NaOH. calculate the ph: at the equivalence point

asked on March 28, 2015
32. ## HARD COLLEGE CHEMISTRY

a solution containing 100.0 mL of 0.135 M CH3COOH (ka=1.8E-5) is being titrated with 0.54 M NaOH. calculate the ph: at the equivalence point and 5 mL past the equivalence point. how much is 5 mL past? i do not know how to do it?

asked on March 28, 2015
33. ## Chemistry

How many moles of oxygen atoms are contained in 1.86 x 10-2 mol CuSO4·5H2O

asked on March 22, 2011
34. ## chemistry

what products would form after hydrogenation of 2-methyl-1-butene? after halogenation (cl2)?

asked on April 26, 2015
35. ## enlgish

Last night, lucy and Neil met Morey in Gramercy Park. 1. The object of the verb is.? 2. the predicate of the sentence is?

asked on September 2, 2009
36. ## chemistry

what products would form after hydrogenation of 2-methyl-1-butene? after halogenation (cl2)?

asked on April 26, 2015
37. ## precalculus

use the discriminant to determine whether the equation is a parabola, an ellipse, or a hyperbola. Then identify the angle of rotation required to eliminate the xy-term. x^2+4xy+y^2=1 5x^2-6xy+5y^2-8x+8y-8=0 9x^2+24xy+16y^2=25

asked on April 22, 2015
38. ## Physics (mechanics)

A u-control airplane of mass m is attached by control wires of length L and negligible mass to the "pilot" who controls the lift provided by the wing FL. The wires control the plane's elevator or angle of attack. The plane's engine keeps it moving at

asked on July 9, 2013
39. ## math

Each student in a class contributed as many paise as number of student in the class.teacher contributed rs 13 to make total collection of rs 49.how many students were in the class?

asked on May 27, 2017
40. ## pre-calculus

eliminate parameters of x=1+cos t y=1-sin t graph the parametric equations

asked on April 22, 2015
41. ## Understanding percent

In the square, if part A is 1/4 of the square and part C is 1/10 of the square, what percent of the square is part B?

asked on March 27, 2012
42. ## math

It takes 3/8 cup of powdered drink mix to make 1 quart of a flavored drink. The table shows the number of cups of powdered drink mix that Juanita has of each flavor. How many quarts of flavored drink can Juanita make for each flavor?

asked on April 4, 2018
43. ## precalculus

how do you eliminate the parameters for x=1-t^2 and y=1+t?

asked on April 22, 2015
44. ## precalculus

algebraically identify the symmetries of r=2sin(2theta)

asked on March 31, 2015
45. ## precalculus

Let z1=2(cos 2pi/3+isin 2pi/3) what are z1^(1/3)?

asked on March 31, 2015
46. ## chemistry

PH of gatorade and body sweat

asked on March 29, 2015
47. ## college chemistry HARD

a solution containing 100.0 mL of 0.135 M CH3COOH (ka=1.8E-5) is being titrated with 0.54 M NaOH. calculate the ph: at the equivalence point and 5 mL past the equivalence point. how much is 5 mL past? i do not know how to do it?

asked on March 28, 2015
48. ## chemistry

a solution containing 100.0 mL of 0.135 M CH3COOH (ka=1.8E-5) is being titrated with 0.54 M NaOH. calculate the ph: at the equivalence point and 5 mL past the equivalence point. how much is 5 mL past? i do not know how to do it?

asked on March 28, 2015
49. ## easy math

√(100 - 20√5 + 5 + 15 - 6√15 + 9) solve.

asked on March 31, 2015
50. ## precalculus

Let u= and v= A. what is the angle between u and v? B. find projvU C. reoslve u into u1 parallel to v abd U2 perpendicular to v.

asked on March 31, 2015
51. ## Math

angles ABC and XYZ are complementary angles. if m < ABC is 18 more than three times m < XYZ, find < XYZ i have no idea how to do this i know that something has to equal 18+ 3m but i don't understand the (

asked on June 15, 2014
52. ## english

I consider that cosmetic surgery is a personal option but in some cases it becomes a bad addiction because expand this please

asked on January 19, 2016
53. ## AP chemistry

what products would form after hydrogenation of 2-methyl-1-butene? after halogenation (cl2)?

asked on April 26, 2015
54. ## precalculus

find a hyperbola equation with vertices (o,+-4) and passes through the point (3,-5)

asked on April 16, 2015
55. ## precalculus

Let u have a length of 20 and direction of 60 degrees, and v= 5i-3j what is u? what is abs(2v-u)?

asked on March 31, 2015
56. ## precalculus

Let z1=2(cos 2pi/3+isin 2pi/3) what are z1^(1/3)?

asked on March 31, 2015
57. ## precalculus

Let u= and v= A. what is the angle between u and v? B. find projvU C. reoslve u into u1 parallel to v abd U2 perpendicular to v.

asked on March 31, 2015
58. ## precalculus

Let u have a length of 20 and direction of 60 degrees, and v= 5i-3j what is u? what is abs(2v-u)?

asked on March 31, 2015
59. ## physics

exercise 4.1 suppose the pilot start agin from rest

asked on March 17, 2013
60. ## geometry

there are 4 cirlces in an equilateral triangle with sides equal to 16cm. what is the radius of the big circle and the little circles

asked on February 25, 2013
61. ## math

2 Years before,average age of 8 numbers of family was 20yr.if present average of family even on inclusion of 1 child,remains same.present age of child is?

asked on May 31, 2017
62. ## math

Distance between 2 villages A and B is 165km.a scooter rider starts from A to B at 75km at speed of 320km/hr.at the same time another scooter rider starts from B towards A at speed of 25km/hr.find when they will cross each other? ( 10 am)?

asked on May 26, 2017
63. ## Maths

Find x such that the point (x,4) is 10 units from (-2,-2)

asked on February 3, 2016
64. ## Algebra

For the function f(x) = 5/x+4 find the average rate of change of f from 1 to x:

asked on November 3, 2015
65. ## MATH - exponent laws

how do you evaluated this? (-)sign ↓ _ __________( -11/-17)^-10 line is divide (9/5)^1/10

asked on February 9, 2015
66. ## physics

jk

asked on October 2, 2012
67. ## Algebra 1

Nico drives from school to the store at 25 miles per hour. He drives back to the school (along the same route) at 35 miles per hour, and the returns to the store (via the same route) travelling at 40 miles per hour. Find the average rate for the three

asked on October 30, 2010
68. ## French

Is "je suis allé souvent" correct or should it be "je suis souvent allé?" Thanks

asked on January 4, 2009
1. ## social studies

k

posted on May 28, 2019
2. ## Health

Thank you 😘 all my jiskha helpers/fans!! BIG SHOUTOUT!! Too you all, love you guys 😍😚🙂!!!

posted on April 4, 2019
3. ## Math

33

posted on March 27, 2019
4. ## Math

12

posted on March 27, 2019
5. ## Math

1/2

posted on March 27, 2019
6. ## English

The, a, an

posted on March 27, 2019
7. ## Math

Please thumbs up me!

posted on March 27, 2019
8. ## Math

Please thumbs up me!

posted on March 26, 2019
9. ## Math

90,000 is the correct answer. It is the best answer ever because it is the rightest.

posted on March 26, 2019
10. ## Math

90,000

posted on March 26, 2019
11. ## Math

1x3=3 3x4=12 2x3=6 6x4=24

posted on March 26, 2019
12. ## math

280 miles Multiply by 40

posted on March 26, 2019
13. ## geometry

1.cube that has 2x2x2cm 2.sphere that has a diameter of 2cm 3.cylinder that has a height of 2cm and diameter of 2cm Simply find the volume and surface area of each one.

posted on February 22, 2019
14. ## educational technology

lol yes A B D is correct for all you Connexus users....lol dont listen to the rest of these aholes

posted on October 30, 2018
15. ## English

Ok thx What about my other answers are they correct?

posted on October 30, 2018
16. ## I need help!

someone helping u is 100%correct use his or her way

posted on April 9, 2018
17. ## art

thnxs

posted on March 30, 2018
18. ## identity theft

yup 100% b a a

posted on March 29, 2018
19. ## english 11

no

posted on October 24, 2017
20. ## geometry

T

posted on October 9, 2017
21. ## Chemistry

799

posted on September 6, 2017
22. ## Probability

27

posted on February 12, 2017
23. ## Calculus

oi

posted on February 6, 2017
24. ## 10th grade algebra

5

posted on January 14, 2017
25. ## science

21

posted on November 28, 2016
26. ## Finance

102,857

posted on November 2, 2016
27. ## Math

998

posted on November 1, 2016
28. ## math

50

posted on August 16, 2016
29. ## math

1.4 because u have to divide 5 divide 7.

posted on February 18, 2016
30. ## Science

Thanks Kiki!!!!

posted on January 20, 2016
31. ## Physics Help

velocity

posted on December 31, 2015