Thursday

May 5, 2016
Total # Posts: 210

**Chemistry**

A weak acid HA (pka=6.00) was titrated with 1.00M NaOh. The acid solution had a volume of 100ml and a concentration of .100M. Find the pH at the following volumes of added base. Vb=20ml
*April 25, 2016*

**Bus. Math Need Help**

Oh maybe this is the first question then this question follows... Federal Express bought material handling equipment for its hub operations that cost $180,000. Using the MACRS, what is the depreciation expense in year 3 (using a five-year class)?
*April 6, 2016*

**Bus. Math Need Help**

That is the question I don't understand it... Use the following information to answer the question: Cost of car: $26,000 Residual value: $6,000 Life: 5 years
*April 6, 2016*

**Bus. Math Need Help**

I don't even understand this question...can someone please point me in the right direction: Use the following information to answer the question: Cost of car: $26,000 Residual value: $6,000 Life: 5 years
*April 6, 2016*

**life orientation**

What is viable business idea what does it mean?
*March 3, 2016*

**life orientation**

How can advise my friend who responds to conflict by confrontation on why it is not healthy in sustaining positive relationships?
*February 25, 2016*

**Math**

16 divided by 25 is 0.64
*January 5, 2016*

**Math**

is it B
*January 5, 2016*

**Math**

3 16/25 As a percent A. 3.64% B. 3.80% C. 364% D. 380%
*January 5, 2016*

**MATH ASAP**

thank you guys soooo much ur my HEROS and YES I do know that 3 ft equals a yard
*December 14, 2015*

**MATH ASAP**

1) 10 1/6 yards equals how many feet ik the answer is 30 1/2 but I don't know how to show my work PLZ HELP
*December 14, 2015*

**biology**

hey are both used for storage of excess glucose and both are branched. They also tend to be grainy in texture.
*December 14, 2015*

**Science HELP PLZ**

1. Which type of eclipse would you expect to see if the moon passes directly between Earth and the sun? (1 point) a solar eclipse* a lunar eclipse a total lunar eclipse a penumbra 2. Which of the following statements about a lunar eclipse is true? (1 point) A lunar eclipse can...
*December 14, 2015*

**Math**

The monthly loan payment was calculated at 119 payments of $348.33 plus a final payment of $347.54. Loan Balance: $30,000.00 Loan Interest Rate: 7.00% Monthly Loan Payment: $348.33 Number of Payments: 120 Cumulative Payments: $41,798.81 Total Interest Paid: $11,798.81 On ...
*December 13, 2015*

**Social studies**

Can ya'll check my answer and help me with the 2 I don't know? :) Sectionalism grew in the southern states due to A) an increase in federal regulations on southern industry. B) holidays established to celebrate national events. C) the South's economic dependency on...
*December 10, 2015*

**Social Studies**

Someone from another country
*December 9, 2015*

**Science**

Ok I get it now, sorry it just sometimes takes me a second. But thank you so much @Damon. :)
*December 8, 2015*

**Science**

Ok thank you @Damon but do u think u could maybe explain to me why these r the right answers so I know. If u don't want to that's fine I was just wondering! :)
*December 8, 2015*

**Science**

1. A weatherman reports, “The storm waves are about 2 meters high and about 35 meters apart.” What properties of waves is the reporter describing? (1 point) A. frequency and wavelength B. wavelength and wave speed C. amplitude and wavelength*** D. amplitude and ...
*December 8, 2015*

**Math**

Ok I figured it out thank ya'll so much for your help! :)
*December 6, 2015*

**Math**

Ok but what is the h?
*December 6, 2015*

**Math**

Ok im sorry I didn't see the last thing u posted but that makes a lot more sense thank you very very much! :D
*December 6, 2015*

**Math**

Ok I'm so so thankful for u helping me that is like Japanese to me. Im sorry
*December 6, 2015*

**Math**

Ok its a triangle and A-B is 12 feet and C-B is 6 feet and B-D is 22 feet and I have to figure out what the length is for D-E
*December 6, 2015*

**Math**

I know but it wouldn't let me post it and it told me to submit URL to Jiskha
*December 6, 2015*

**Math**

The ramp shown below is used to move crates of apples to loading docks at different heights. When the horizontal distance AB is 12 feet, the height of the loading dock, BC, is 6 feet. What is the height of the loading dock DE? 10 feet 12 feet 17 feet*** 18 feet Ok so this is a...
*December 6, 2015*

**Math Homework questions. (check plz)**

Do u think u could help me with the others?!
*November 30, 2015*

**Math Homework questions. (check plz)**

Omg thank you SSSOOO much David Soye. :D
*November 30, 2015*

**Math Homework questions. (check plz)**

Ok I don't see a site and will that help me with ALL of the problems?!
*November 30, 2015*

**Math Homework questions. (check plz)**

Idk these are just practice problems but idk how to do them. and what is text materials?!
*November 30, 2015*

**Math Homework questions. (check plz)**

Tbh I just guessed cause I have no clue how to get the answer?! :(
*November 30, 2015*

**Math Homework questions. (check plz)**

Can someone check these? 11. The sales tax rate is 7.4%? a. Find the tax paid for a pair of shoes with a list price of $93 b. the team made a total of 325 goals. what percent of the teams made goals did richard make? $6.88; $99.88 $6.88; $93.68 $0.69; $99.88 $0.69; $93.68 12. ...
*November 30, 2015*

**Algebra 2**

Did I solve this quadratic inequality correctly? Is my work correct? 9t^2 + 1 ≤ -6t 9t^2 + 1 -(-6t) ≤-6t-(-6t) 9^2 +6t +1≤0 (3t+1)^2≤0 (3t+1≤0), (3t+1≥0), (t≤-1/3), (t≥-1/3) t=-1/3 (-∞, -1/3]
*October 30, 2015*

**Math**

Oh ok thank you very much Steve! :D
*October 7, 2015*

**Math**

What do you do to check whether a number is rational or irrational? How does finding the square root of a number compare to finding the cube root of a number? Use the number 64 in your explanation. Can someone please help me with these questions?!
*October 7, 2015*

**Art and the Creative Impulse**

1.c 2.d 3.b 4.c 5.b 6. The word aesthetic comes from Greek and means A. creating beauty. B. artistic sensitivity. C. art for art's sake. D. the perception of beauty. (d)
*September 8, 2015*

**Art and the Creative Impulse**

and the second question is b
*September 8, 2015*

**Art and the Creative Impulse**

the lady of shalott is a legend
*September 8, 2015*

**Art and the Creative Impulse**

so its a greek poem?
*September 8, 2015*

**Art and the Creative Impulse**

Which of the following best illustrates radial symmetry? A. A soup can B. A perfect sphere C. Your face in a mirror D. A snowflake i say its c In a painting, the techniques of chiaroscuro are intended to produce _______ texture. A. imaginary B. visual C. virtual D. literal i ...
*September 8, 2015*

** Art and the Creative Impulse**

The purpose of The Lady of Shallot, a painting by Waterhouse, was to illustrate a/an A. Christian parable. B. Greek poem. C. Arthurian legend. D. Roman myth. i say it is D
*September 8, 2015*

**Algebra **

3b + 7.1 = 2.5b + 11.5
*May 23, 2015*

**Math**

Oh, haha, thank you! :)
*May 8, 2015*

**Math**

Isn't that 15 hours?
*May 8, 2015*

**Math**

Where would the 13 come from?
*May 8, 2015*

**Math**

A Canadian television station shows 16 minutes of commercials every hour between 8 am and 11 pm everyday. How many minutes of commercials are there on the station between 8 am and 11 pm in 365 days?
*May 8, 2015*

**chemistry**

A 0.239 mol sample of PCl5(g) is injected into an empty 2.85 L reaction vessel held at 250 °C. Calculate the concentrations of PCl5(g) and PCl3(g) at equilibrium.
*May 3, 2015*

**Trigonemtry**

A kite has a string of length 60 metres. On a windy day all the string is let out and makes an angle of between 20 and 36 with the ground. Find the minimum and maximum heights of the kite
*April 22, 2015*

**St. Michael**

25ml of NaCl was mixed with 10ml of AgNO3. A precipitate was made. What is the theoretical yield? What is the limiting and excess reagent?
*March 28, 2015*

**math angles and quadilaterals**

I need help it says what is the measure of right angle D
*January 9, 2015*

**Langague Arts 8th Grade**

Yeah Reign's are all correct except 1 is A and C and 11 is an essay question.
*January 4, 2015*

**Physics C**

A rifle is aimed horizontally at a target 100 ft away. The bullet hits the target .78in below the aiming point. a) What is the bullet's time of flight? b)What is its muzzle velocity? The answers should be a) 63 m/s b) 1.6 X 10 exponent 3 ft/s I don't know how to get to...
*November 18, 2014*

**science**

what does nuclear energy mean and can you give me a example of what it is?
*October 20, 2014*

**Chem Urgent Help Please!!!!**

Chromatography is a powerful analytical technique for separating complex mixtures into their components. Do you think it would be practical to use it on a large scale for preparative purposes? Consider the problems this would involve. You have a product for which counterfeit ...
*October 5, 2014*

**Physics Help Please!!!!**

a pitcher throws a softball horizontally from a height of 1.25 m and notes that it strikes the ground a distance of 15 m from the point where it was thrown. how long did it take the ball to reach the ground? what was the velocity at which the ball was thrown? what was the ...
*September 22, 2014*

**Physics Help Please!!!!**

a pitcher throws a softball horizontally from a height of 1.25 m and notes that it strikes the ground a distance of 15 m from the point where it was thrown. how long did it take the ball to reach the ground? what was the velocity at which the ball was thrown? what was the ...
*September 21, 2014*

**Chem---DrBob222**

Calculate the oxidation # for each atom in the molecule below. Can you help me with the rest. Thank you!!! H H H H / / / / H -- C ---C ===C ----N .. / / H H Group # # of E Oxidation # H 1 0 1 x 7 = 7 C 4 7 C 4 C 4 N 5 3 H atom attached to first C atom. 1 H atom to second C ...
*September 18, 2014*

**Physics Help Please!!!!**

Human reaction times are worsened by alcohol. How much farther would a drunk driver's car travel before he hits the brakes than a sober driver's car? Assume both cars are initially traveling at 47.0 mi/h, the sober driver takes .33 s and the drunk driver takes 1.0 s to...
*September 17, 2014*

**Chem---DrBob222**

How many for each Carbon though! That was the part I was confused! Another question? If we have double bond How many electrons we will have between each Carbon atoms? Why did you assign +3 for N??? thank you!!!
*September 17, 2014*

**Chem**

3 H atom attached to first C atom. 1 H atom to second C atom. There is a double bound between second C atom and the third C atom. The third C atom has one H atom. N atom has 2 dots underneath it and attached to 2 H atoms. Note: I tried to display the diagram but it turned out ...
*September 17, 2014*

**Chem**

3 H atom attached to first C atom. 1 H atom to second one There is a double bound between second C atom and third one. The third one has one H atom. N atom has 2 dots underneath it and attached to 2 H atoms. Note: I tried to display the diagram but it turned out to be like ...
*September 17, 2014*

**Chem**

Calculate the oxidation # for each atom in the molecule below. Can you help me with the rest. Thank you!!! H H H H / / / / H -- C ---C ===C ----N .. / / H H Group # # of E Oxidation # H 1 0 1 x 7 = 7 C 4 7 -3 C 4 C 4 N 5
*September 17, 2014*

**Organic-Chem Lab Question Need Help!!!**

a) Would 2-propanol be a suitable solvent to extract caffeine from an aqueous tea solution? Explain? b) You want to use 45 ml total of your extraction solution. Is it better to use three extractions of 15 ml each or one extraction of 45 ml? Explain your answer? Thanks!
*September 13, 2014*

**Chm Help Please!!!**

What is the boiling point of a solution of benzene contain 0.2 moles of a non volatile solute in 125 grams of benzene given that pure benzene has a b.p. of 80.1 Celcius and a Kbp of +2.53 C/m. Thanks!
*September 9, 2014*

**Physics Help!!!!**

Describe what it means (describe the motion) if the acceleration vector has the same direction as the velocity vectors, and what it means if the acceleration vector has the opposite direction as the velocity vectors. Consider all four possibilities and explain what would ...
*September 6, 2014*

**Physics Help!!!!**

Describe what it means (describe the motion) if the acceleration vector has the same direction as the velocity vectors, and what it means if the acceleration vector has the opposite direction as the velocity vectors. Consider all four possibilities and explain what would ...
*September 5, 2014*

**Math**

How do you solve 2y-5x=10 using the dual intercept method? I have to solve for X int and y int on a graph. Please help
*August 31, 2014*

**9th Grade Bio**

Thanks Ms. Sue and Damon!! You guys are life savers :)
*August 25, 2014*

**9th Grade Bio**

_______ is the process of digesting food and extracting the energy from it. Directions: Fill in the blank. Please help me answer this question. I've looked through all my textbooks and notes but they didn't mention this anywhere. Can someone please help me? Thanks
*August 25, 2014*

**Science Please Help Me**

@Gohan san was right. (for THIS test anyway)
*June 3, 2014*

**thermodynamics**

hope to solve it before 29 of may
*May 21, 2014*

**thermodynamics**

design a 1200-W electric hair dryer such that the air temperature and velocity in the dryer will not exceed 50 C and 3 m/s respectively
*May 21, 2014*

**math**

if you tossed 2 nickles 100 times, how many times would you expect to get a)2 heads b)2 tails c)1 head and 1 tail
*May 15, 2014*

**math**

suppose 2 nickles are tossed at the same time what are the possible outcomes? what are the possiblility of getting a)2 heads b)2 tails c)1 head and 1 tail
*May 15, 2014*

**math ratios**

the blue jays baseball team won 17 games and lost 14 games. what is the ratio of wins to losses?
*May 15, 2014*

**science**

If a forest ecosystem is removed through clear cutting, their loss is due to _______ my answer is land development. am I correct?
*May 13, 2014*

**science**

Which of the following statements correctly states how human activity and biodiversity affect one another. A)as humans develop land for homes and industry, biodiversity increases. B)as humans restrict fishing and oil drilling, biodiversity decreases. C)as biodiversity ...
*May 13, 2014*

**calculus help**

A drinking cup is made in the shape of a right circular cylinder. for a fixed volume, we wish to make the total material used, the circular bottom and the cylindrical side, as small as possible. Find the ratio of the height to the diameter that minimizes the amount of material...
*April 25, 2014*

**calculus help**

for f(x)= ln(x-3) on the interval [5,9], find c so that f'(c)= (f(b)-f(a))/(b-a)
*April 25, 2014*

**Calculus Help Please!!!**

Ornithologists have determined that some species of birds tend to avoid flights over large bodies of water during daylight hours. It is believed that more energy is required to fly over water than land because air generally rises over land and falls over water during the day. ...
*April 16, 2014*

**Calculus Help Please!!!**

Does the function satisfy the hypotheses of the Mean Value Theorem on the given interval? f(x) = 2x^2 − 5x + 1, [0, 2] If it satisfies the hypotheses, find all numbers c that satisfy the conclusion of the Mean Value Theorem. (Enter your answers as a comma-separated list...
*April 1, 2014*

**Calculus Help Please!!!**

Two carts, A and B, are connected by a rope 39 ft long that passes over a pulley P (see the figure). The point Q is on the floor h = 12 ft directly beneath P and between the carts. Cart A is being pulled away from Q at a speed of 3.5 ft/s. How fast is cart B moving toward Q at...
*March 30, 2014*

**Chemistry Help Please!!!**

1) using kb for NH3 calculate ka for NH4+ ion. Compare this value with that calculated from your measured ph's? 2) how should the pH of a 0.1M solution of NaC2 at H3O2 compare with that of a 0.1 M solution of KC2H3O2? Explain briefly? THANK YOU!
*March 29, 2014*

**Chemistry Help Please**

Using standard thermodynamic data from Appendix L of your text, calculate the equilibrium constant at 298 K for the following chemical reaction: CO(g) + H2O(l) CO2(g) + H2(g). Show work please! Thank you!!!
*March 16, 2014*

**Chem Check Please!!!**

Using standard thermodynamic data from Appendix L of your text, calculate the equilibrium constant at 298 K for the following chemical reaction: CO(g) + H2O(l) CO2(g) + H2(g). Show work please! Thank you!!!
*March 16, 2014*

**Calculus Help**

Find the derivative of the following function showing your work and fully simplifying your answer. f(x)=(8x-3)^5/(6x+7)^12 Thank you!!!
*March 11, 2014*

**math**

the answer would be D.
*March 1, 2014*

**Math**

Which is more, 2 liters or 201 centiliters?
*February 27, 2014*

**CHEM**

the number of nonbonding electrons exceeds the number of bonding electrons in the lewis structure of which of the following molecules? I am having a problem with the Lewis structures. HCN NH3 H2O please explain the structure thank you so much
*February 25, 2014*

**CHEM**

In which of the following pairs of compounds are both members of the pair molecular compounds? PCl3 and LiBr CCl4 and KOH NaH and CaF2 Please explain. thank you so much
*February 25, 2014*

**CHEM**

a period 2 nonmetal, X, forms the molecular compound NX3. Which of the following are also correct formulas for molecular compounds involving X? HX OX2 C2X pleas explain why thank you so much
*February 25, 2014*

**Physics**

A particle moves according to the equation x= (10 m/s^2)t^2 where x is in meters and t is in seconds. a. Find the average velocity for the time interval from t1= 2.38 s to t2= 4.3 s. Answer in units of m/s. b. Find the average velocity for the time interval from t1= 2.38 s to ...
*February 9, 2014*

**science**

Yah i need them too! Ugh
*November 24, 2013*

**pol201**

The Annapolis Convention was called to address smaller states would get more representation than larger states. the people would select the House of Representatives as a practical expression of democracy. the House would select the Senate and the legislature as a whole would ...
*October 28, 2013*

**Chemistry**

cd2+ (aq) +ni(s)---> cd(s) + ni2+ (aq) what is the half reaction
*May 5, 2013*

**Chemistry**

cd2+ (aq) +ni(s)---> cd(s) + ni2+ (aq) what is the half reaction
*May 5, 2013*

**Chemistry**

cd2+ (aq) +ni(s)---> cd(s) + ni2+ (aq) what is the half reaction
*May 5, 2013*

**Earth science**

oxygen
*April 2, 2013*

**science**

How do i plot i schild plot with this data: Conc (M) 10^-8 Ec50= (microM) 12
*March 3, 2013*

**Chemistry**

Consider the titration of 25.0mL of 0.10M HAc with 0.10M NaOH. That is, NaOH is added to HAc. (a)pH at the beginning of titration. (b)pH at the equivalence point of the titration. (c) pH at the midpoint of the titration.
*February 26, 2013*