Tuesday
December 6, 2016

Posts by james

Total # Posts: 2,392

math
A sphere of radius 7 m is circumscribed about a regular triangular prism. If the base edge of the prism is 1 m, find the volume of the prism (in m3). Round off your answer to four decimal places.
December 5, 2016

Math
Find the volume of the solid of revolution obtained by revolving the plane region R bounded by y= x^5, the y-axis, and the line y=3 about the x-axis I've gotten 15/7(3^(2/5))pi, but it's not right. Please help
December 2, 2016

Calculus
Find the volume of the solid of revolution obtained by revolving the plane region R bounded by y= x^5, the y-axis, and the line y=3 about the x-axis So far: y=x^5 is equal to x=5th root y. I've plugged that in to pi(r^2)h, and got V = pi ?[0,3] y^(2/5) dy. so far I've ...
December 2, 2016

Math
Please help someone
November 27, 2016

Math
I'm rounding to nearest hundred
November 27, 2016

Math
Four ways to round to 400
November 27, 2016

Math
what two numbers rounds to 600
November 27, 2016

Math
I am rounding to nearest 100
November 27, 2016

Math
What two numbers round to 700
November 27, 2016

Calculus - Fundamental Thm of Calc
Suppose F(t) is an antiderivative of t^{3}. Then F'(t)= t^3. According to the Second Fundamental Theorem of Calculus, x ? (t^3)dt = ??? 1 Answer using the function F
November 23, 2016

math
1/2 < -7/10 is this a true statement
November 18, 2016

Physics
An object is projected from a satellite orbiting 200 km above the surface of the earth. The object has a speed relative to the Earth of 2.85×104 m/s. What is its speed when it is very far from the earth?
November 17, 2016

Psychics
Super man lived on Krypton where acceleration due to gravity is 23.6 m/s^2. If a woman falls from a building that is 88.3 meters tall, how long does he have to save her before she hits the ground?
November 16, 2016

Calc
Find the values of C guaranteed by the mean value theorem for integrals. f(x)=x^3 [0,3]
November 16, 2016

Math
Rectangle perimeter and area length =2ft width =14in
November 14, 2016

Physics
A force of 123 N acts on a 10.0kg object for 45.6 meters. If the objects starts at rest, and the surface is flat and frictionless, how fast is the object moving after the force is removed. I got acceleration to be 12.3, but I am not sure how to move on with the problem.
November 13, 2016

Calculus
True/false: x^2-3 is concave up on the interval (-1,1) The second derivative of x^2-3 is just 2. How do I determine concavity of a function when I can't set it equal to 0? And then how do I answer this question when it's asking for a specific interval?
November 11, 2016

Spanish
D A A C B
November 7, 2016

Chemistry
In a similar experiment, a sample of tin metal was dissolved in nitric acid to produce 23.00 mL of solution containing Sn2+. Titration analysis resulted in the calculation that the concentration of Sn2+ in this solution was 0.65 mol/L. b. What mass of tin was used to make the ...
November 5, 2016

Calculus - Special sum formulas
Find a formula for Sum_{j=1}^n (j+3) (j-4) So far, I have foiled to j^2-j-12. Thus,Sum_{j=1}^n(j^2) - Sum_{j=1}^n(j) - Sum_{j=1}^n(12). From Special Sum formulas, I have gotten to n(n+1)(2n+1)/6 - n(n+1)/2 - 12n What do I do from here?
November 4, 2016

Calculus - Differential Equations
Use separation of variables to find the solution to the differential equation: 4 (du/dt) = u^2, subject to the initial condition u(0)=6.
November 4, 2016

Calculus
Find the xy-equation of the curve that passes through (-2, -2) and whose slope at any point on the curve is equal to 5 times the x-coordinate of that point
November 4, 2016

Calc
A rectangular package to be sent by a postal service can have a maximum combined length and girth (perimeter of a cross section) of 90 inches (see figure). Find the dimensions of the package of maximum volume that can be sent. (Assume the cross section is square.)
November 3, 2016

Calculus
True or False If F(x) and G(x) are antiderivatives of f(x), then F(x)=G(x)+C If f'(x) = g(x) then integral g(x) dx = f(x) + C Integral f(x) * g(x)dx = integral f(x)dx * integral g(x)dx I have a feeling it's False True True
November 2, 2016

Math
Kate cycles the first 350 km of a 470 km journey at a certain average speed and the remaining distance at an average speed that is 15 km/h less than that for the first part of the journey. If the time taken for her to travel each part of her journey is the same, find the ...
November 2, 2016

Calc
If a car is driving in a straight line with constant acceleration a, initial velocity v0, and initial position s0, find a formula for the position function of the car. How would I solve this equation?
November 1, 2016

chemistry
what is the name of this coordination compound [CoSO4(NH3)5]Br?
October 31, 2016

Math
Ten analog measurements whose bandwidth is 4 kHz are to be transmitted simultaneously through a cable by time division multiplexing using PCM. Each message is sampled at a 10 kHz rate and amplitude quantized into 128 levels. The pulses are shaped with a near-ideal low pass ...
October 31, 2016

Math
We are given the problem of communicating a series of symbols, each of which can take on one of 512 values at a rate of f_s =〖10〗^5 symbols/s. A) What is the required bandwidth if PCM is used with m=1? B) Repeat for PAM with m=2, if each pulse can take on 8 ...
October 31, 2016

Math
A sausage sample was found to contain 65% moisture, based on fresh weight. The sausage was dried in an oven until its moisture content was 10%. A 2.0 g portion of the dried sausage was extracted with the Soxhlet method to determine the amount of crude fat. A clean Soxhlet ...
October 29, 2016

History
Thanks Ms.sue
October 22, 2016

History
How did George Mason influence the creation of Bill of Rights? A.He refused to sign the United States Constitution. B.He encouraged others to opposed the ratification of the Constitution. C.He assembled a anti-federalist convention in Virginia to discuss the matter. D.He wrote...
October 22, 2016

chemistry
0.350 L of 0.470 M H2SO4 is mixed with 0.300 L of 0.250 M KOH. What concentration of sulfuric acid remains after neutralization?
October 18, 2016

Maths
A plane flies a course of 346 degrees and then turns through 30 degrees in the clockwise direction. Find its new bearing. Since the plane from starting point covers a bearing of 346 degrees it's now going to be in the NW direction but going 30 more degrees clockwise that...
October 18, 2016

Math
the towns highway department marks a new road with reflective markers the road is 6 3/4 miles in length the markers are spaced every length 1/8 of a mile
October 14, 2016

social studies
So its B
October 13, 2016

econ
given p=68-4qd-qd^2 p=12+2qs+qs^2 where p is the price qd is the quantity demanded qs is the quantity supplied determine the uquilibrium and the quantity of the commodity
October 13, 2016

Basic math
A ladder 10 feet long leans against a building the base of the ladder is 6 feet how high is the paint where the ladder touches the building
October 13, 2016

Basic math
A 15 foot ladder propped against a wall the base of the ladder is 3 feet from the wall how far up the wall does the ladder reach.
October 13, 2016

math 1
What is the value of the expression below? (2^-4)(3^0)(7)/(5^-2)(4^-2)(175) Remember: Negative exponents in the denominator move to the top with its base, and negative exponents in the numerator move to the bottom with its base. In both cases you should drop the negative sign...
October 12, 2016

math 1
How do i put a pitcure because the problem is a picture
October 12, 2016

math 1
Please help with this i don't under stand it at all Hint: Copy and paste in in the search bar.
October 12, 2016

math 1
file:///C:/Users/Elvis/Downloads/34c349524b928a5f67768aa8eb6e1c02.png
October 12, 2016

math
Answer is -16 :)
October 12, 2016

math
ive got it ive seen my mistake
October 12, 2016

math
Find the values of x and y in the two equations below then answer the question that follows. 2^-3=1/x 7^y=1/49 What is the value of xy ? For the first problem i got 8. For the second one i got 1/343 I don't know what im doing wrong or right. Can you please show me with work.
October 12, 2016

Chemistry
Based on the standard reduction potentials given below, which species is most likely to be oxidized? Ag+ + e- → Ag, Eo= 0.80 V Cu2+ + 2e- → Cu, Eo= 0.34 V Zn2+ + 2e- → Zn, Eo= -0.76 V Cd2+ + 2e- → Cd, Eo= -0.40 V I thought the answer would be Zn2+ that...
October 12, 2016

Chemistery
Calculate the concentration of O 2 if K c = 270 for the reaction 2SO 2 (g)+O 2 (g)⇌2SO 3 (g) .
October 10, 2016

College Algebra
Tammy can do a certain job in 6 hours. Kris can do the same job in 8 hours. If Tammy and Kris work together to complete the same job, how many hours will it take for them to complete it?
October 8, 2016

Calculus - Approximation
Use linear approximation, i.e. the tangent line, to approximate cubed root { 1.1 }. The equation of the tangent line to f(x) at x = 1 can be written in the form y = mx+b. Show your work. Do not use a calculator.
October 7, 2016

Math - Calculus 1
Approximate using derivatives. (Must show work using derivatives!) Do not use a calculator: (1.1)^4 - (1.1)^2
October 7, 2016

Calculus - Related Rates
Suppose that you are watching a spaceship take off. You are 100 meters from the launch pad, and you measure the angle made by the rocket and the ground to be increasing at a rate of (d)(theta)/dt = 0.1 radians per second. What is the velocity of the rocket when theta = pi/4?
October 7, 2016

Social Studies
1 b&d 2a 3b
October 4, 2016

Physics
usain bolt set the world record for the 100m dash, proving to be the fastest man in history, with a time of 9.58s. what was bolt's average speed in miles per hour? (his initial speed was 100m/9.58s I got 23.35 mph for this I need help with this. VVVVVVVVVVVVVV assume that ...
October 4, 2016

math
Joe is playing a game with a regular die. if the number that turns up is even he will gain 5 times the number that comes up. if it is odd, he will lose 10 times the number that comes up. he tosses a 3. express the results as an integer
October 4, 2016

College math
A bag contains 9 white 7yellow marbles,8 green marbles. If one marble is drawn from the bag then replaced, what is the probability of drawing a white marble then a green marble?
October 1, 2016

Help with compute probability
Compute the probability of randomly drawing five cards from a deck and getting 3 Aces and 2 Kings. (Give your answer as a fraction.) Probability
October 1, 2016

Chemistry
So I've done as you said and have come up with the following: C (g) = 0.0437g H (g) = 0.00583g O (g) = 0.01167g C(mol)=0.00364mol H(mol)=0.00578mol O(mol)=0.000729 I then divide for the ratio (Mm=m/n) and get 12 for C, 1 for H, and 16 for O, making the formula: C12HO16, ...
September 22, 2016

Chemistry
Sorry, it's 0.06120 g produced 0.1601 g of CO2 and 0.05243 g of H2O
September 22, 2016

Chemistry
Hey, can someone help me with this? A compound containing only C, H and O was subjected to combustion analysis. A sample of 6.120×10^-2 g produced 1.601×10^-1 g of CO2 and 5.243×10^-2 g of H2O. Determine the empirical formula of the ...
September 22, 2016

Precalculus
Thank you so much!!! I see what I was doing wrong now. PS: You have good handwriting :)
September 19, 2016

Precalculus
Yeah, I tried drawing a diagram, but I just keep getting confused.
September 19, 2016

Precalculus
In triangle ABC, we have AB=3 and AC=4. Side BC and the median from A to BC have the same length. What is BC? Please help, I have no idea where to start.
September 19, 2016

math
a man sleeps 8 hours a day. how many hours can he sleep in a year?
September 19, 2016

math
Sara is thinking of a number when she rounds her number to the nearest hundred,she gets 700.What is the greatest number Sara can be thinking of?Explain
September 13, 2016

Please check my answer(Social Studies)
So what's the answers
September 13, 2016

Physics
A drag racer starts her car from rest and accelerates at 4.8 m/s 2 for the entire distance of 409 m. How long did it take the car to travel this distance?
September 13, 2016

Science
Which of the following means using specific observations to make generalizations? A: BIAS B: Subjective C: Deductive Reasoning D: Inductive resoning is the answer c?
September 12, 2016

Social Studies
yes he is correct 5 is c
September 12, 2016

home economics
what are the branches of fibre
September 11, 2016

Physics
A block of mass m1= 3.70kg rests on a 30degree incline and is held stationary by a mass of 1.3kg hanging vertically over a frictionaless pulley at the top. Calculate the value of u (coefficent of friction)
September 8, 2016

Physics
56.7 m
September 7, 2016

Math
How do you write 4,000,000,000 + 20,000,000 + 500,000 + 60,000 + 1,000 + 300 + 40
August 30, 2016

Chemistry
24.332
August 28, 2016

math
6 people like soccer, 3 like volleyball, 7 likefootball, and 2 likebasket ball show that in tallies
August 23, 2016

Economics
Consider a single price monopoly that faces a market demand curve for a good is given by the equation 𝑃=100−.1𝑄 and the total cost function is given as 𝑇𝐶=1000+20𝑄+.4𝑄2. a. What is the total fixed cost for this monopoly? P=...
August 23, 2016

Social Studies
Thank you Anonymous
August 18, 2016

Social Studies
Everyone needs to chill 1. If Ms.Sue is gay so what, If you don't like it go somewhere else and get the answer 2. Ms.Sue is a human if she got it wrong, OK y'all never made a mistake? Should we be mean to you for your mistake? Shes only human y'all can have a ...
August 18, 2016

science
The boy A weighs 50 kg and the girl B weighs 35 kg in a seesaw...the board of the seesaw is 3.6 meter... To balance the seesaw where should girl C who weighs 25 kg seat or what particular distance should girl C seat to balance it
August 18, 2016

Calc
Find the value of m such that y=mx divides the area under the curve y=(1-x)x in [0,1] into two regions of equal area D: D: D:
August 17, 2016

Math
Solve the equation: (1) 5/2 = 3x; x= (2) 7/2 = 4x; x=
August 15, 2016

Math
Solve the equation: (1) 5= 6y; y (2) 7/2 = 4x; x
August 15, 2016

Math
Solve the equation: 9/5 = 1 + m; m
August 15, 2016

Math
Solve the equation 1) 4= 5y; y = 2) 7/4 = 1 + m; m= 3) 7= 6y; y
August 15, 2016

Maths
Prove that sin2x+cos2x-1/sin2x+cos2x+1=tanx
August 9, 2016

Math
A fossilized leaf contains 21% of its normal amount of carbon 14. How old is the fossil (to the nearest year)? Use 5600 years as the half-life of carbon 14.
August 3, 2016

Science (Biology)
krfkrfrf
July 30, 2016

Math
A car is traveling at a rate of 35 meters per second. What is the car's rate in kilometers per hour? How many kilometers will the car travel in 3 hours? Do not round your answers.
July 29, 2016

Math
solve these questions using distributive property 30% Of 10= 30% of 20= 30% of 30=
July 23, 2016

Calc
a large closed storage rectangular box with a base constructed with two different types of wood. the base is made up of wood $5 per square feet and the top and sides are made of wood $3 per square feet suppose the amount available to spend is $1000 find the dimensions of the ...
July 20, 2016

math
The angles of elevation of a balloon directly above a straight road, from two points of the ground on opposite sides of the balloon, are 78¡ã15' and 59¡ã47'. If the points are 5000ft apart, what is the height of the balloon?
July 20, 2016

ENGLISH
A creative writing teacher tells students to publish their writing projects in a nonprint format. Which of the following techniques would not meet the teacher’s requirements?
July 13, 2016

Chemistry
14 grams of coal undergoes complete combustion in 58 grams of oxygen gas. What volume of gas (measured at 25 degrees celsius and 100 kPa) is present when the reaction is complete?
July 11, 2016

Calculus
Launching a missile to hit a target 100 miles away. Determine the launch speed of the missile along with the angle at which it's to be fired. Also, show your work and one of the angle that will work. Finally, assume that the only force acting on the missile is gravity.
July 7, 2016

Maths
The sum of the interior angles o a regular polygon is 30 right angles. How many sides have the polygon?
July 7, 2016

University of Liberia Chemistry 102
Using a current of 4.75A how many minutes does it takes to plate onto a sculpture 1.50g of CuSO4 solution?
June 29, 2016

Math
If the 16th term of an arithmetic sequence is three times the fourth term, find the ratio of the 23rd term to the third term.
June 27, 2016

physics
7.500N
June 18, 2016

physics
calculate the net force required to give a 3000kg trucks an acceleration of 2.5m/s^2
June 18, 2016

Calculus- PLEASE HELP
A rectangular piece of tin has an area of 1334 square inches. A square tab of 3 inches is cut from each corner, and the ends and sides are turned up to make an open box. If the volume of the box is 2760 cubic inches, what were the original dimensions of the rectangular piece ...
June 14, 2016

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