Posts by Jay

Total # Posts: 1,710

history
After the Revolution, the practice of a.enslaving African Americans was b.eliminated in the North. [c].restricted in the North and the South. d.encouraged in the North. abolished in the South

english
Which of the following phrases best defines rhythm? Repeated sounds across lines of poetry a poem's cadence, pace, or ongoing momentum A collection of lines in a poem The regular of irregular rhyme scheme in a poem

NMR Organic Chemistry multiple choice
Why do we only see four peaks in the 1H NMR when we have five CH2 groups and 2 OH groups? Answer a. There should be more peaks, but they peaks are overlapping in the spectrum. b. Heptanedioic acid is a symmetrical molecule. c. Heptanedioic acid is a chiral molecule. d. ...

organic chemistry II lab NMR
Why do we only see four peaks in the 1H NMR when we have five CH2 groups and 2 OH groups? Answer a. There should be more peaks, but they peaks are overlapping in the spectrum. b. Heptanedioic acid is a symmetrical molecule. c. Heptanedioic acid is a chiral molecule. d. ...

physics
since its vector math you add the two vectors if they are in the same direction and subtract if they are pointing in opposite directions.

Math
The area of a rectangle is 20 square inches. The length of the rectangle is 1 inch longer than the width. What are the length and width of the rectangle?

math
allof it

math
I still do not understand

math
a pipe is 2" outside diameter and it as 3/16" walls. What isthe inside diameter. could you explain in detail . Thanks

math
The ratio of games jsy won to the number of games he lost is 5:2 he won 20 games. how many games did jay lose? show oe explain how you got your answer.

math
Please give me an algebraic expression for this problem jasmine has three times as many chores as her younger brother does

math
Lillian bought 16 yards of ribbon at the craft store she bought 2/3 of red how many yards of red she bought

Physics
Is basketball a streamlined object? What about a baseball? What object will not be considered streamlined

algebra
is this a relation? 1 3 2 6 13 15 14 4 the picture connects (1,6)(2,4)(13,15)(14,3) would the answer be no?

algebra
Please help the graph of g(x) is f(x) translated to the left 8 units and up 2 units what is the function rule for g(x) given f(x)=x^2. Can someone explain this to me. The I have a graph that has the top corner shaded the point is on 1 going off the side and the other line is ...

chemistry
Must have been but now I don't know how to answer th questions above. Any suggestions?

chemistry
Chromatography seperating mixtures; A couple questions I'm not sure how to answer. A) what evidence is there that a marker is a mixyure? B)each compound in the marker ink is represented by a color did one compound travel farther than the others expplain why you think this ...

physics
what did galileo state about the motion of objects?

Physics
If gravity was zero how would that effect the mass of an object? The weight?

algebrs
Could someone please explain how to write an equation. Write an equation for the following transformation of y=x; a vertical stretch by a factor of 4. I'm not sure but this is what I tryed y=f(x) vertical stretch 4 y=f(x+4) y=4

algebra
Can someone please explain this qestion and how to solve. A doctors office schedules 15 min appointments for weekdas. The doctor limits these appointments to, at most, 30 hours per week. Write an inequality to represent the number of 15 min appointments x and the number of ...

algebra
Can someone explain how to solve this problem. A doctors office schedules 15 min appointments and half hour appointments for weekdays. The docyor limits these appointments to, at most, 30 hours per week. Write an inequality to represent the number of 15 minute appointments x ...

algebra
write an equation for the following transformation of y=x; a vertical stretch by factor of 4. please help. can someone explain how to find answer

Calculus
lim[x:81,(x/(1+sqrtx) - 81/10) / (x-81)]

english
I believe it to be, the second answer but wasn't forsure was wanting someone to check my anser. Only I forgot to mark mine.

english
i need help please. What does Thomas F. Walsh, Jr's thesis propose about "Young Goodman Brown"? -because young goodman brown is a fictional short story it does not reflect any truth about life? -goodman brown enters the forest doubting the goodness of people and ...

algebra
The quotient of 23 and u minus t

Math
I need a rule for the following table: Input 0 1 2 3 4 5 Output 5 4 3 2 1

algebra
I think you are saying I need to figure each set of numbers like you did for every number set and they do.But how do you know which number set to start with or write the equation? I got the same answers by divivding the number sets.

algebra
Determine whether y varies directly with x, If so, find the constant of variation k and write the equation. x y 4 6.4 7 11.2 10 16 13 20.8 Would like for someone to explain if possible

algebra
Not understanding how to graph my answer

algebra
I believe it would be y=9/5+32 if I made the graph right. Am I close?

algebra
You are trying to compare the Farenheit and Celcius scales and you have two examples; Temperatur A is 50 degrees Celcius and 122 Farenheit. Temperature B is 100 degrees Celcius and 212 degrees Farenheit. What graph models the relationship between Farengeit and Celcius scales? ...

algebra
Speciality t shirts are being sold online for $30 plus one time handling fee of $2.75. The total cost is a function of the number of t shirts bought. What function rule models the cost of the t shirts? Evaluate the function for t shirts. Can someone please help

math
The buyback buy store is going to make an order which will include at the most 60 refrigerator. 71 refrigerator and 118 the.

math
The buyback buy store is going to make an order which will include at the most 60 refrigerator. 71 refrigerator and 118 the.

Chemistry
872

statistic
A researcher conducts an experiment comparing three treatment conditions with a separate sample n = 8 in each treatment. An analysis of variance is used to evaluate the data, and the results of the ANOVA are presented in the table below. Complete all missing values in the ...

Chemistry
I am trying to figure out how to make 275 gallons of a 5% NaOH solution. I know that 275 gallons weighs 2294.875 lbs. How many lbs. of NaOH woul it take to make the above mentioned solution?

nervous system
is it C or B ?

english
which are the noun(s) and verb(s) They grew up hearing music at home and found it everywhere. my answers. Noun- They Verbs- grew, found

Science
What type model would you use to study an earthquake?

health
Signs of a sleep disorder include? A. Trouble staying awake during the day B. Pauses in breathing during sleep C. Both A and B D. Coughing and sneezing

health
Me too haha, what's the answer?

Calculus
Let V be the volume of a right circular cone having height h and radius r and assume that h and r vary with time. a. Express the time rate of change of the cylinder in terms of h, r and their rates of change. b. At a certain instant, the height is 10 in and decreasing at a ...

chemistry
0.268

math
how many cubic feet of air arein a room with dimensions of 12'x 10'x 8'

Probability/Combinatorics
If 4 cards are drawn at random from a standard deck of cards, what are the odds, or probability, that the first three will be of the same suit and the fourth of another suit?

Pre-Calc, Probability
From a deck of 52 playing cards, 7 cards are dealt. What are the odds of the following event occuring --4 From one suit, 3 from another The probability of the event occurring is also acceptable. But, the answer is 99/16722971 (as far as the odds go

physics
Jason applies a force of 4.00 newtons to a sled at an angle 62.0 degrees from the ground. What is the component of force effective in pulling the sled horizontally along the ground?

Econ
Assume that American rise sells for $100 per bushel, Japanese rice sells for 16,000 yen per bushel, and the nominal exchange rate is 80 yen per dollar. A.Explain how you could make a profit from this situation. What would be your profit per bushel of rice? If other people ...

physics
A 10000 Hz tone must have what intensity level to seem as loud as a 50 Hz tone that has a 100 dB sound level? (See Fig. 12-7.) 12_07.gif

math
1476.75 cubic ft

Physics
I got a similar answer of 79.0 cm/s using the conservation of energy equation. U(i) + K(i) = U(f) + U(f) Thank you for the help. And sorry for asking this question. I didn't see the similar question when I searched mine in the search bar.

Physics
K is 5.3 N/m. Why are you using 4.6 N/m?

Physics
A 100-g block hangs from a spring with k = 5.3 N/m. At t = 0 s, the block is 20.0 cm below the equilibrium position and moving upward with a speed of 194 cm/s. What is the block's speed when the displacement from equilibrium is 31.5 cm?

math
-29 = -4 + 5u

algebra
If an electronic circuit experiences a loss of 3 decibels with an input power of 6 watts, what would its output power be, to the nearest watt?

math
How can i measure or get the correct size of a bicycle rim.

Physics
The Moon orbits the Earth at a distance of 3.85 x 108 m. Assume that this distance is between the centers of the Earth and the Moon and that the mass of the Earth is 5.98 x 1024 kg. Find the period for the Moon's motion around the Earth. Express the answer in days. The ...

math
could you please tell me how you got the answer reguarding the 2" pipe i would really appreciate it. Thanks

math
Ido not know how you got the ansmwer could you please explain.

math
A pipe is 2" outside diameter and it has 3/16" walls .What is the inside diameter,?

geometry
Can somebody help me with Proofs in Geometry Given:M<ABE=M<CBD

Physics
2. A body fired vertically up reaches a maximum height of 120 m. The location at which the kinetic energy is 75% of the potential energy is...

calculus (check my work please)
right, because my answer can be simplified into: sec^5(x)/5-sec^3(x)/3

calculus (check my work please)
I did, I got a completely different result. Also, SAY SOMETHING USEFUL NEXT TIME!!! tired of you spamming that stupid reply

calculus (check my work please)
Not sure if it is right, I have check with the answer in the book and a few integral calculators but they seem to get a different answer ∫ sec^3(x)tan^3(x) dx ∫ sec^3(x)tan(x)(sec^2(x)-1) dx ∫ tan(x)sec(x)[sec^4(x)-sec^2(x)] dx ∫ tan(x)sec(x)[(tan^2(x)+...

Integral Calculus
I figured it out @Ethan, you can't substitute because it is x^2 over(x^2+1)

Integral Calculus
great, I can find the steps and i have the answer already. i just don't understand the step to be made after (1/2)x^2*arctan(x)-1/2∫x^2/(x^2+1) dx

Integral Calculus
Trying to find ∫x*arctan(x)dx, but I can't figure out what do to after: (1/2)x^2*arctan(x)-1/2∫x^2/(x^2+1) dx

Math
Pair of functions fx=3x and g(x) =3x^2-2x+3 find the following (f◦g)(x=)

math
a cb radio station c is located 3 mi from the interstate highway h. the station has a range of 6.1 mi in all directions from the station. if the interstate is along a straight line, how many miles of highway are in the range of this staion?

physics
if you get really lazy you can always use calories (1 small calorie=the energy to increase 1 gram of water by 1 degree Celsius)

Computers
suppose to write a program for it? or what are you trying to do?

Math
5:15+12:00 (the 12 hours is added because it is PM) - 8:00 (the time he starts, because you don't want to include the time for 8 AM for that day)- 0:45 (he doesn't get paid for lunch)=8:30 (time he works for one day) 5:15+12:00-8:00-0:45=8:30 8:30 or 8.5 hours * 5 days...

MATH
3x-1=y slope: 3; Y intercept:-1 x-3=y slope: 1; Y intercept:-3 3x-8=y slope: 3; Y intercept:-8 y-2=3(x-4)-->y=3x-10 y-5=3/8(x-3)-->y=3/8x-49/8

Math
1= 1 week for 1 car also, the rest of the answers have bad form (magnitude then units usually)

precalculus algebra
3*20<125; you sold more then 20 tickets or didn't make $125

math
which product rule? there are a lot of rules by that name

physics
levers (need to know about torque), collisions (need to know about momentum/impulse), verifying that force=mass*acceleration those are three ideas off the top of my head, need to know the purpose of the project and how much physics you know to make a better list.

physics
not enough info for the first one, what angle is the hill at? also, need either a final or initial velocity of some kind second problem: what are the choices? it sounds like it is multiple choice

Physics
here is a diagram, with M1 being the larger mass and M2 being the smaller mass. delete all x's wxww.csupomona.exdu/~skboddeker/131/notes/pulleyblock.gif

Physics
A pair of masses are attached by a string that runs over a pulley. The larger mass is on a frictionless incline that makes an angle of 18 degree with the ground. the smaller mass is hanging in the air off the pulley. the larger mass is given an initial velocity of 1.7 m/s up ...

physics
a) mass*gravity*height= gravitational potential energy. 17*103*9.8= x Joules b) as the object falls the potential energy is converted to kinetic. so just before it hits the ground all of the potential energy has become kinetic.

Physics 6A
you need to add units to the measurements. Ill assume the following: 330 kilograms, 3.8 meters, 23 degrees. mass*gravity*amount of gravity working= 330*9.8*cos(90-23)=force or work of gravity if the man fights gravity the entire time then his force is equal and opposite to ...

physics....
impulse is Newtons* seconds say you have the forces 1N and 2N. if you apply the 1N to an object for say 10 seconds then the impulse is 10N*s. when you apply the 2N force, it would take 5 seconds to match the same impulse as the 1N. aka: if the smaller force is applied longer ...

english
present participial phrase

english
(three-act farce) and adjective clause

english
What type of clause or phrase is italicized in the sentence below? The play, a three-act farce, amused everyone. please help fast!!

math probability
a 3 section spinner which each outcome is not equally likely.if you spin the spinner once,what is the probability that it will stop on a?

MATH
You only add or subtract like terms.

Math-Algebra 1
1920/10 = 192 24*8= 192

Algebra
Write an equation in standard form (slope-intecept form) of the line passing through the pair of points (3,4) and (5,8) containing point (5,9) and parallel to the line.

surface area and volume
thanks hannah you're 100% correct i got a 5/5 100%

Algebra
I am still having trouble solving this problem. Use the quadratic formula to solve this equation: 4k(k+13)=13

Algebra
sqrt(q^2+7q+6)-q-3=0

Algebra
Use the quadratic equation to solve the equation: 4k(k+13)=13

Algebra
Solve for "x" using the quadratic formula: X^2-4x-21=0

Algebra
3 divided by 5 times the square root of 5 + 3 times the square root of 2. (This problem is written as a fraction.)

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