Sunday

February 14, 2016
Total # Posts: 1,211

**math**

Elaine is making a model of a house that she designed. She wants to put wood molding around two rooms in the model. She measures and finds that she needs feet of molding for one room and feet of molding for the other room. She has feet of molding
*February 2, 2016*

**Chemistry**

Would you expect H 2 SO 3 to be oxidized to H 2 SO 4 in our natural environment? Please explain using the molecules in our environment and the concept of oxidation states.
*January 30, 2016*

**maths**

y=3ln5t/2cos2t
*January 23, 2016*

**Math**

Kenny wants to invest $250 every three months at 5.2%/a compounded quarterly. He would like to have at least $6500 at the end of his investment. How long will he need to make a regular payments? *PLEASE SHOW WORK*
*January 17, 2016*

**Math**

What are the correct answers??
*January 12, 2016*

**math**

when 4 times a number n is decreased by 3 its at most 21
*January 11, 2016*

**Health**

{1} which is the best example of a win-win situation. A. One side gets what it wants.... B. Both sides get what they want but one side get more.... C equal need are met for both sides....D neither side get what it wants. I think C is the answer. {2} A person understands how ...
*January 11, 2016*

**Business **

Tina borrowed some money at 6% simple interest and paid it back exactly seven years later by making a single payment of $4544. How much did she borrow in the first place?
*January 10, 2016*

**Math**

No I want to know the answer cuz I don't know it😔😓👍
*January 4, 2016*

**Math **

What is {23%,0.21,1/4,1/5} from least to greatest I need the answer today please thank you
*January 4, 2016*

**Math**

If a 14-ft ladder leans against a building, with an angle of elevation of 70°, how far up the building will the ladder reach? I believe this requires law of cosines but otherwise I am lost.
*December 11, 2015*

**physics**

That is wrong
*December 9, 2015*

**Trigonometry**

Wait, I think I figured it out. Does p=40 a=20 c=80 sound right?
*December 4, 2015*

**Trigonometry**

I must be doing something wrong because I keep coming out to big fractions with variables left over. I need another hint here. Am I supposed to have fractions in my answers?
*December 4, 2015*

**Trigonometry**

Added info: I know that I need a system of three equations to solve for my three unknowns, I just can't figure out those equations. I really need help!
*December 4, 2015*

**Trigonometry**

Peanuts cost $3 per pound, almonds $4 per pound, and cashews $8 per pound. How many pounds of each should be mixed to produce 140 pounds of a nut assortment that cost $6 per pound, in which there are twice as many peanuts as almonds?
*December 4, 2015*

**Algebra**

The sum of two numbers is 53. If twice the 1st number minus 3 times the second number is 26, find both numbers.
*December 1, 2015*

**Math - Statistics**

A six-sided die is rolled 36 times. What is the probability that an odd number is rolled at most 15 times? What is the probability that an odd number is rolled exactly 15 times? Use the Normal Approximation to a Binomial.
*November 30, 2015*

**Social Studies**

Thank you!! I really needed this thanks to whoever posted the questions and the answers.
*November 30, 2015*

**Chemistry**

In the electrolysis of water 75.0 cm3 of oxygen gas are produced.How many cm3 of hydrogen are produced ?
*November 23, 2015*

**math**

I think this is what you should put Abby if you want a good grade An exponential has the variable in the exponent, causing the y to grow or decay increasingly quickly or increasing slowly Real world example banks use interest, over months or years...each time the interest is ...
*November 22, 2015*

**Algebra**

The second of three numbers is three times the first. The third is 5 more than the second. if the second is decreased by twice the third number, the result is five? x 3x 3x-2(3X)=5 x= 3/5 ?
*November 22, 2015*

**Math**

the answer is 9.50 - 7.18 _______ 2.32
*November 18, 2015*

**Math**

yes this is how To get the solution, we are looking for, we need to point out what we know. 1. We assume, that the number 260 is 100% - because it's the output value of the task. 2. We assume, that x is the value we are looking for. 3. If 260 is 100%, so we can write it ...
*November 18, 2015*

**Chemistry**

hope this helps 1 OH- plus H+ = HOH or H2O One mole of OH- combines with one mole of H+ to make one mole of water. therefore .50 moles of OH- will combine with .50 moles of H+ to make .50 moles of H2O and the solution will be neutral with a pH of 7. 2. Balance the equation ...
*November 18, 2015*

**Math**

i had to help my younger sis with this answer not even ten mins ago.
*November 18, 2015*

**Math**

Circle the letter of the answear in which 503,000,000 is written correctly in scientific notation.(superscript -7, superscript 6,and superscript 8 1)5.03 x 10-7 2)503 x 106 3)5.03 x 108 4)503 million I got number 3 for the answear. And you get the prize. 5.03 x 108 is correct...
*November 18, 2015*

**Math**

I would think that the answer would be 7000 let me know if you dont think this is the answer please?.!
*November 18, 2015*

**English**

it would be A
*November 17, 2015*

**English**

The PAST PROGRESSIVE TENSE indicates continuing action, something that was happening, going on, at some point in the past. This tense is formed with the helping "to be" verb, in the past tense, plus the present participle of the verb (with an -ing ending): I was ...
*November 17, 2015*

**Math**

1=45 feet of ribbon 2 6 tons actually equals 12000 pounds and then you would - that from 7,860 and you would get 4,140 pounds is that what you are looking for?
*November 17, 2015*

**Math**

got anymore questions
*November 17, 2015*

**Math**

Welcome anytime!
*November 17, 2015*

**Math**

5 acres of land in each. you can keep asking me questions you know.
*November 17, 2015*

**Math**

I would go with reading because it takes up the longest time.
*November 17, 2015*

**health **

Identical twins often have similar interests even if they were not raised together. This shows how ________ influences personality development a) modeling b) a peer group c) environment d) heredity d would someone check this answer.
*November 17, 2015*

**Math**

then 13 cup and 3 feet.
*November 17, 2015*

**Math**

Leslie needs 324 inches of fringe to put around the edge of a tablecloth. The fringe comes in lengths of 10 yards. If Leslie buys 1 package of fringe, how many feet of fringe will she have left over? she would have 1 yard left over 2. A jar contains 26 fluid ounces of ...
*November 17, 2015*

**health **

A person who is afraid of heights likely suffers from ( select all that apply ) a)anxiety b) a phobia c) obsessive-compulsive disorder d) an impulse control disorder Would Someone Please Help Me With The answer I Know One Is Phobia But I Don't Know The Other Would Someone ...
*November 17, 2015*

**Social Studies (Ms. Sue) Please Proofread**

What are the answers I need them badd
*November 17, 2015*

**geography**

Hey Matthew. It's me Nick. Anyways, the cold war probably took place around eastern and western europe. I think.:)
*November 16, 2015*

**Math**

an electrician needs to run a cable from the top of a 48-foot tower to a transmitter box located 20 feet away from the base of the tower. Find how long he should cut the cable.
*November 3, 2015*

**Quantitative Math**

Find the amount if $600 is invested at 14% compounded monthly for 15 months. I don't understand how to set this problem up.
*November 1, 2015*

**Calculus**

The formula for the amount (A) in a savings account compounded n times per year for t years at an annual interest rate r, with initial deposit P, is given by A=P(1+r/n)^nt. Evaluate this formula as the number of compoundings per year becomes infinite. (the number "e"...
*October 27, 2015*

**Calculus**

A baseball player hits a baseball from home base towards second base with a velocity of 90 feet/second. At that same moment, he runs from home base towards first base at 30 feet/second. Find the rate of change of the distance between him and the baseball after 1 second.
*October 27, 2015*

**math**

What is 26cm:4m ratio in simplest form?
*October 20, 2015*

**Physics **

A pilot, whose mass is 70.0 kg, makes a loop-the-loop in a fast jet. Assume that the jet maintains a constant speed of 325 m/s and that the radius of the loop-the-loop is 5.922 km. What is the apparent weight that the pilot feels (i.e., the force with which the pilot presses ...
*October 16, 2015*

**Math**

Nine times twelve minus four times two to the power of two plus six equals sixty eight
*October 5, 2015*

**Music**

The quarter note will equal 1 beat.
*September 30, 2015*

**Math**

Let your friends marbles = x Your marbles plus theirs is equal to 48. You have three times as many marbles as her... 3x. 48=3x+x factor 48=x(3+1) 48=4x x=12 your friend has 12 marbles and you have 12*3 marbles or 36.
*September 30, 2015*

**algebra I**

find all numbers such that a third of a number increased by half that number is at least 3 less than that same number. not sure what to do
*September 23, 2015*

**math**

if an object was to fall from 170 feet up from the roof of a building. how many feet would the object land at the bottom of the building?
*September 21, 2015*

**Physics**

A 11.0-µF capacitor and a 50.0-µF capacitor are charged by being connected across separate 55.0-V batteries. (a) Determine the resulting charge on each capacitor. (b) The capacitors are then disconnected from their batteries and connected to each other, with each ...
*September 19, 2015*

**math**

A pole is painted red, blue and green. One third (1/3) of the pole is painted red and one half (1/2) of the poles is painted blue. Five feet of the pole is painted green. What is the height of the pole?
*September 9, 2015*

**AP Physics**

A passenger train is traveling at 27 m/s when the engineer sees a freight train 345 m ahead of his train traveling in the same direction on the same track. The freight train is moving at a speed of 5.9 m/s. (a) If the reaction time of the engineer is 0.36 s, what is the ...
*August 15, 2015*

**AP Physics**

A motorcycle officer hidden at an intersection observes a car driven by an oblivious driver who ignores a stop sign and continues through the intersection at constant speed. The police officer takes off in pursuit 1.56 s after the car has passed the stop sign. She accelerates ...
*August 15, 2015*

**Urgent math**

SORRY 35th term would be 4 + 5(35-1) = 4 + 5(34) = 4 + 170 = 174
*August 15, 2015*

**Urgent math**

(a) What this means is, we are trying to find one number that is added or subtracted from each term to get the next term. Since this is an arithmetic sequence, the d will always be the same. You can find d by subtracting the first term from the second term (9-4) and getting d...
*August 15, 2015*

**calculus**

Sketch the region in the first quadrant enclosed by y=6/x, y=2x, and y=.5x. Decide whether to integrate with respect to x or y. Then find the area of the region. need final area as answer please, and step would be helpful also if you can post.
*July 19, 2015*

**calculus**

Sketch the region in the first quadrant enclosed by y=6/x, y=2x, and y=.5x. Decide whether to integrate with respect to x or y. Then find the area of the region.
*July 18, 2015*

**calculus**

Sketch the region in the first quadrant enclosed by y=6/x, y=2x, and y=12x. Decide whether to integrate with respect to x or y. Then find the area of the region.
*July 18, 2015*

**calculus**

Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the region. y=3+√X, y=3+1/5x What is the area?
*July 14, 2015*

**introduction to computers**

which selection below represents an entry that would be seen in the active box? A. =sum(A1:A3) B. 15 C. (A1:A4) D. E11
*July 12, 2015*

**math/algebra**

why did the kangaroo see a psychiatrist?
*June 29, 2015*

**Statistics**

brewery's filling machine is adjusted to fill bottles with a mean of 33.8 oz. of ale and a variance of 0.004. Periodically, a bottle is checked and the amount of ale noted. (a) Assuming the amount of fill is normally distributed, what is the probability that the next ...
*June 20, 2015*

**Urgent - physics**

Air molecules and dust particles in the atmosphere will scatter sunlight. From a consideration of the position of the sun, estimate the direction of incidence of the sun's rays on the atmosphere. In what direction will an observer on the earth's surface need to look if...
*June 10, 2015*

**physics**

How would you use a piece of Polaroid to look at the bottom of a pond if reflections are a problem? Would it be any different if the pond is covered with a layer of oil? Hint: (Refractive index of water = 1.33 and of oil = 1.5). Show calculations.
*June 10, 2015*

**Chemistry**

A chemist wants to make 150 mL of a 1.26 M solution of carbonic acid to be used in the lab. How many grams of H2CO3 does the chemist need to make this solution? I converted mL to .150L, multiplied .150*1.26= =0.189 to get mol. H2CO3=62.028 so I multiplied this by 0.189 to get ...
*June 6, 2015*

**Language Arts**

Can someone please check these answers I cant risk getting a bad grade at this point. These are from the book "The Giver" 1. At the beginning of the novel, Jonas describes himself as apprehensive. Why is he apprehensive? A. An unknown plane is flying overhead. B. The...
*June 5, 2015*

**Chemistry**

what volume of 0.200M KOH is needed to neutralize 32.7 grams of h3po4, which has been dissolved in 250 ml water?
*June 4, 2015*

**Math (Grade 9)**

A submarine travels 16km/h on the surface of the water and 10km/h under water. The sub covers 138km in 12 hours. I) Write 2 equations to represent; (Define Variables) total number of hours: Total distance travelled. II) Use equations to calculate the spent on the surface and ...
*June 3, 2015*

**Chemistry**

At home, you dissolve 26.0 g of AlCl3 in 1.5 kg of water. What is the freezing point of this solution? (Normal f.p = 0.0 C, Kf= 1.86 C kg/mol)
*May 4, 2015*

**chemistry**

How many sigma (σ) bonds and pi (π) bonds are in one molecule of arsenic acid, H3AsO4
*May 2, 2015*

**physics**

A box is suspended by a steel wire via a frictionless pulley The wire has a mass per length of µ = 24.5 × 10 − 3 kg/m. The box is so heavy and the wire so thin that the mass of the wire does not influence the wire tension. The horizontal part of the wire has ...
*April 16, 2015*

**physics**

Did you examine the picture? There are angles involved. The nail is at a 30 degree angle in the wood.
*April 7, 2015*

**physics**

Thank you very much. That makes sense. I will apply that reasoning.
*April 7, 2015*

**physics**

The web address is posted below my question if you would like to see the picture. The (dot)=.
*April 7, 2015*

**physics**

The instructor wants us to use the sum of the torques to figure out the problem.
*April 7, 2015*

**physics**

Yes. Still need help figuring out the forces exerted though.
*April 7, 2015*

**physics**

The figure below shows a clawhammer as it is being used to pull a nail out of a horizontal board. A force of magnitude 130 N is exerted horizontally as shown. (NOTE: Assume that the force the hammer exerts on the nail is parallel to the nail and perpendicular to the position ...
*April 7, 2015*

**math**

given that the rectangle above has a perimeter of 34 units, find m<klj. round the answer to the nearest hundredth
*March 31, 2015*

**physics**

A penny is dropped from the top of a building 310 m high. Ignoring air resistance, if the penny falls straight down, with what speed would it hit the ground?
*March 25, 2015*

**Calculus**

∫ x^3 √(16-x^2) dx evaluated between [0, 4] I know this is solved using trigonometric substitution, but I'm not sure how to work it. Please show steps so I will understand.
*March 14, 2015*

**physics**

a) w= (2pi rad)/60 sec = .105rad/s b) v= wr = .105*24 = 2.52cm/s c) a= 0 rad/s^2
*March 5, 2015*

**physics**

a) w= (2pi rad)/60 sec = .105rad/s b) v= wr = .105*24 = 2.52cm/s c) a= 0
*March 5, 2015*

**World History**

can u delete this please
*March 5, 2015*

**World History**

1. What is Social Darwinism and how was it tied to imperialism? Social Darwinism is the belief of “Survival of the Fittest”. During the struggle between nations there were different factors that went into how you were treated like your ranking in society and your ...
*March 5, 2015*

**World History**

What is Social Darwinism and how was it tied to imperialism?
*March 5, 2015*

**World History**

9. In which colony did the United States have control over to make them an imperial power? a. Vietnam b. Philippines c. India is it b?
*March 5, 2015*

**World History**

6. Which form of resistance to British rule in India was MOST effective? a. Non-violent civil disobedience under Mohandas Gandhi b. Sepoy Rebellion ****** c. Pressure from foreign powers 7. European nations used two types of rule, indirect and _________ to control their new ...
*March 5, 2015*

**World History **

4. What was a consequence of British imperial rule in India? a. Indian culture exceled and the people of the country became wealthy. b. Indian people were massacred in Jallianwala Bagh and their culture decimated. c. Gandhi became a prominent leader for the British. 5. Which ...
*March 5, 2015*

**World History**

is it A?
*March 5, 2015*

**World History **

3. Nationalism is… a. Pride in one’s country especially marked by a belief in the superiority over other countries b. Policy of cooperation between nations to expand trade c. Diplomatic strategy to promote exploration I think I know it, but I wanna make sure. what do...
*March 5, 2015*

**World History **

1. Competing among nations to gain foreign territory and influence is the definition of ___________. a. nationalism b. realism c. imperialism I think it's c
*March 5, 2015*

**civics**

hi i need help on the cold war? and world war 2? what happen in the cold war and world war 2
*March 3, 2015*

**gen chem**

What is the ph of a soulution made by adding 0.20 mole NH3(aq) to 0.30 mole NH4Cl and 0.10 mole KOH to 100ml of water? Kb for NH3 (aq)=1.8x10^-5M
*March 1, 2015*

**math**

The accompanying tree diagram represents a two-stage experiment. (Let x = 0.3, y = 0.7, r = 0.55, s = 0.45, t = 0.55, and w = 0.45.) (a) Find P(A) · P(D | A). Correct: Your answer is correct. (b) Find P(B) · P(D | B). Incorrect: Your answer is incorrect. (c) Find...
*February 24, 2015*

**English**

Is This Parallel? Either you can eat or talk, but you can't do both at the same time.
*February 24, 2015*

**Math**

42x1/3=14 each girl received twice as many tickets or (2x) 14 girls(2x)=840 28x=840 x=30 per girl 15 per boy
*February 19, 2015*