Sunday
October 23, 2016

# Posts by nate

Total # Posts: 223

Math
You arrive home to find that your 45 foot by 20 foot basement has 3 inches of water in it. A) If 1 cubic foot of water is about 7.48 gallons, how much water will you be pumping out of your basement? Express your answer rounded to the nearest tenth of a gallon. gallons B)If you...
October 4, 2016

Math
A round silo is 40 feet tall and has a 25 foot radius. How high would a load of 37000 cubic feet of grain fill the silo? Express your answer rounded to the nearest foot.
October 4, 2016

Math
A model of A car has a scale of 3 cm : 2m the length of the actual hood of the car is 1m what is the length of the hood of the model
September 11, 2016

Math
Consider an account with an APR of 8.5%. Find the APY with daily compounding.
August 30, 2016

Analytic Geometry
what is the radius of the circle circumscribing an isosceles right triangle having an area of 162 sq. cm? Show your solutions pls. Thank you!
June 29, 2016

geometry
May 24, 2016

Math
A man 6 feet tall is standing 4 feet away from a 20 foot lamppost. How long is the lampposts shadow?
April 27, 2016

Chemistry
The chemistry problem is "How would you make 500.0 mL of a 3.00 M HCl solution form a stock solution that is 6.00 M?" I have no clue how to even approach this problem.
April 12, 2016

math
An executive traveling at 60 km hr would arrive 10 minutes early for an appointment, whereas at a speed of 45 km hr the executive would arrive 5 minutes early.how much time is there until the appointment?
March 23, 2016

Chemistry
Dr.Bob222, thank you for the assistance with 1a and 1b, however, I'm kind of confused with 2! What does recipe entail? A description? A series of calculations?
March 6, 2016

Chemistry
1). Calculate the initial and final pH when 5.0, 10.0, and 100mL of 0.100M HCL is added to (a) 100mL of water (b) 100mL of a buffer which is 1.50M acetic acid and 1.20M sodium acetate 2). Develop a recipe for making this buffer from acetic acid, sodium hydroxide, and water
March 6, 2016

Math
Tim is mixing blue and white paint to make pale blue paint. He uses 2 quarts of blue for every 3 quarts white. How many quarts of each color would he need to make 35 quarts of pale blue? Is the answer 14 quarts of blue and 21 quarts of white?
February 29, 2016

Physics
A uniform disk of radius 0.45 m is mounted on a frictionless, horizontal axis. A light cord wrapped around the disk supports a 1 kg object, as shown. When released from rest the object falls with a downward acceleration of 4.5 m/s^2. What is the moment of inertia of the disk? ...
February 16, 2016

English
"No doubt the feat was easy to Mr. Utterson; for he was undemonstrative at the best, and even his friendship seemed to be founded in a similar catholicity of good-nature." (Stevenson) not plagiarized because you have the name Stevenson and you have quotations to ...
September 24, 2015

Biology
Answer: The most specific is Genus. A way to remember is King Philip Came Over For Good Sex K = kingdom p = phlym c = class o = order f= family g= genus s= species Moving down from Kingdom to species you get more specific. Species is the most specific.
September 24, 2015

physics
A stone is thrown straight up from the ground with an initial speed of 26.6 m/s. At the same instant, a stone is dropped from a height of "h" (a variable) meters above ground level. The two stones strike the ground simultaneously. Find the height "h" (a ...
August 23, 2015

math
A reading list contains 3 historical books and 4 science-fiction books. What is the probability that Tena will randomly choose a historical book for her first report and a science-fiction book for her second?
July 2, 2015

health
Its important to choose foods that provide more A.carbohydrates B.potassium C.mercury D.cholesterol
April 11, 2015

Physics
A 1-kg ball initially moving with a speed of 3m/s strikes a stationary 2kg ball head-on. After the collision both balls stick together. What are the final velocities of the two balls?
April 6, 2015

Physics
A block is released from rest at the top of an incline which makes a 30 degree angle with the horizontal. The incline is 12m long and it takes the block 25 seconds to reach the bottom. What is the coefficient of kinetic friction, µk, between the block and the incline?
February 25, 2015

Social Studies help!!!!
Actually, my test came back telling me that it was railroads. Which doesn't make sense to me... What would the explanation be?
January 22, 2015

Identify and correct the errors in the following to create parallel structure: To narrow a web search a. Put quotation marks around a phrase when you want an exact term. b. Many search engines have wild cards (usually an asterisk) to find plurals and other forms of a word. c. ...
January 18, 2015

algebra
A veterinarian uses 300 feet of chain-link fencing to enclose a rectangular region and also to subdivide the region into two smaller rectangular regions by placing a fence parallel to one of the sides, (a) Write the width w as a function of the length l. w = 1 (b) Write the ...
November 4, 2014

algebra
The sum of the length l and the width w of a rectangular area is 220 meters. (a) Write w as a function of l. w = (b) Write the area A as a function of l. A = (c) Find the dimensions that produce the greatest area. l = w =
November 4, 2014

algera
The fuel efficiency for a certain midsize car is given by E(v) = −0.018v^2 + 1.440v + 3.9 where E(v)is the fuel efficiency in miles per gallon for a car traveling v miles per hour. (a) What speed will yield the maximum fuel efficiency? Round to the nearest mile per hour...
November 4, 2014

algebra
The height in feet of a projectile with an initial velocity of 32 feet per second and an initial height of 240 feet is a function of time in seconds given by h(t) = −16t^2 + 32t + 240. (a) Find the maximum height of the projectile. ______ ft (b) Find the time t when the ...
November 4, 2014

algebra
The height in feet of a projectile with an initial velocity of 32 feet per second and an initial height of 240 feet is a function of time in seconds given by h(t) = −16t^2 + 32t + 240.
November 4, 2014

algebra
A piece of pottery is removed from a kiln and allowed to cool in a controlled environment. The temperature (in degrees Fahrenheit) of the pottery after it is removed from the kiln is shown for various times (in minutes) in the following table. Time(min) Temperature (F) 15 2200...
October 23, 2014

algebra
The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acre-feet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature, °F af 40 760 60 ...
October 23, 2014

algebra
The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acre-feet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature, °F af 40 760 60 ...
October 22, 2014

physics
A construction worker is carrying a load of 40 kilograms over his head and is walking at a constant velocity. If he travels a distance of 50 meters, how much work is being done?
October 8, 2014

algebra
x2 = −x + 1
September 14, 2014

algebra
(z − 1)^2 + 4 = 0
September 14, 2014

algebra
A company has determined that the profit, in dollars, it can expect from the manufacture and sale of tennis racquets is given by P = −0.01x^2 + 130x − 180,000. How many racquets should the company manufacture and sell to earn a profit of \$174,900? (Enter your ...
September 14, 2014

algebra
A model rocket is launched upward with an initial velocity of 200 feet per second. The height, in feet, of the rocket t seconds after the launch is given by h = −16t2 + 200t. How many seconds after the launch will the rocket be 380 feet above the ground? Round to the ...
September 14, 2014

math
solve v=1/3TTr2h; h
September 11, 2014

math
A motorboat left a harbor and traveled to an island at an average rate of 11 knots. The average speed on the return trip was 10 knots. If the total trip took 4.2 hours, how far is the harbor from the island
September 11, 2014

math
How many liters of water should be evaporated from 110 liters of a 12% saline solution so that the solution that remains is a 20% saline solution
September 11, 2014

math
Write an equation of a line in standard form with a slope of -8 and passing through the point (-10, 2).
May 6, 2014

Calculus
A rocket fired straight in the air is being tracked by a radar station 3 miles from the launching pad. If the rocket is travelling at 2 miles per second, how fast is the distance between the rocket and the tracking station changing at the moment when the rocket is 4 miles in ...
April 9, 2014

education
I beleive the answer is, B!
March 25, 2014

education
Teacher observations are vital to the promotion and maintenance of children's health status because: A. they provide a baseline of typical behavior and appearance of each child. B. teachers have primary responsibility for children's health care while they are attending...
March 25, 2014

Statistic
should be 3/10
March 14, 2014

social stud. quiz --- check my answers!!!
If you are from Connections Academy here are the right answers: 1. C 2. B 3. A 4. B 5. C 6. D 7. B 8. C 9. A 10. B
February 11, 2014

math;)
how did you get 437
February 9, 2014

Help me with this science.
Yep they are right
December 10, 2013

Physics
Pi = Initial Pressure (Atmospheres) Pf = Final pressure (Atmospheres) V = Volume n = Moles R = That constant number Ti = Initial Temperature (Kelvins) Tf = Final Temperature (Kelvins) Use the Ideal Gas law. PiV=nRTi & PfV=nRTf ----In the problem, half the gas is removes, so ...
November 30, 2013

Calculus
Consider the function f(x) whose second derivative is f''(x)=5x+2sin(x). If f(0)=3 and f'(0)=3, what is f(3)?
November 19, 2013

Calculus
A Norman window has the shape of a rectangle surmounted by a semicircle. (Thus, the diameter of the semicircle is equal to the width of the rectangle.) If the perimeter of the window is 25 ft, find the dimensions of the window so that the greatest possible amount of light is ...
November 18, 2013

Calculus
Answer the following questions for the function f(x)=(x^3-9x^2+27x-27)/(x^2-6x+8) defined on the interval [-14, 22]. Enter points, such as inflection points in ascending order. A. The function f(x) has vertical asymptotes at _______ and ________. B. f(x) is concave down on the...
November 5, 2013

Chemistry
How many grams of phosgenite can be obtained from 14.0 g of PbO and 14.0 g of NaCl in the presence of excess water and carbon dioxide?
November 4, 2013

Calculus
Find the absolute maximum and absolute minimum values of the function f(x)=x^3+6x^2-63x+4 on each of the indicated variables. Enter DNE for does not exist. (A) Interval = [-8,0] Absolute maximum = Absolute minimum = (B) Interval = [-5,4] Absolute maximum = Absolute minimum = (...
October 29, 2013

Calculus
List the critical numbers of the following function in increasing order. Enter N in any blank that you don't need to use. f(x) = (6x+6)/(5x^2+5x+5)
October 28, 2013

Chemistry
An 80.0 g sample of a gas was heated from 25 degree C to 225 degree C. During this process, 346 J of work was done by the system and its internal energy increased by 7495 J. What is the specific heat of the gas? J/(g∗C)
October 22, 2013

Chemistry
In a constant-pressure calorimeter, 65.0 mL of 0.330 M Ba(OH)2 was added to 65.0 mL of 0.660 M HCl. The reaction caused the temperature of the solution to rise from 23.85 °C to 28.35 °C. If the solution has the same density and specific heat as water, what is ΔH ...
October 22, 2013

Calculus
Use continuity to evaluate. as x approaches 2, lim arctan((2x^2-8)/(3x^2-6x))
October 22, 2013

Calculus
y = tan^-1(sqrt(5x^2-1)) find dy/dx
October 21, 2013

Calculus
Suppose f(x) = 3x + 4. What is f^-1(x) and what is (f^-1)'(x).
October 14, 2013

Calculus
Find the derivative of the function y, below. It may be to your advantage to simplify before differentiating. y = 8x(ln(x)+ln(2))-4x+pi
October 14, 2013

Calculus
The radius of a circular disk is given as 24 cm with a maximal error in measurement of .2 cm. What is the percentage error?
October 10, 2013

Calculus
The linear approximation to (1/sqrt(9-x)) at x=0. What is y?
October 10, 2013

Math
Find the pattern 0.8, 0.4, 0.2, 0.1, ?
October 2, 2013

AP Physics
F=ma (In rotation problems, centripetal acceleration is equal to V^2/r, where v is the velocity and r is the radius) F=mv^2/r The only force acting on the water bucket is that of gravity (mg). mg=mv^2/r Now we solve for v. g=v^2/r gr=v^2 √gr=v √(9.8)(1.49)=v 14.6 m...
September 23, 2013

Math
-(5) to the 2nd power
September 19, 2013

chemistry
what is the density of an object with a mass of 125g and a volume of 176ml?
September 17, 2013

chemistry
what is the density of an object with a mass of 125g and a volume of 176ml?
September 17, 2013

math
the temperature is -10 degrees outside. The temperature inside is 72 degrees. what is the difference between the two temperatures?
September 5, 2013

math
(-0.9)(-0.64)
September 5, 2013

math
0.05 + -4.74
September 5, 2013

Phyiscs
A 40,000 kg jet has a force of 3.9×10^3 newtons. what is the acceleration of the jet
April 3, 2013

U LIED ANGEL U GOT MEH A 2/20
March 30, 2013

Physics
in a childrens soccer game, one of the children kicks the ball from the ground, giving it an itial velocity of 22m/s a) what height and range does the ball reach? b) How high is the ball 2.25s into flight?
March 24, 2013

Physics
in a childrens soccer game, one of the children kicks the ball from the ground, giving it an itial velocity of 22m/s a) what height and range does the ball reach? b) How high is the ball 2.25s into flight?
March 24, 2013

Algebra
What does / Equal in a formula? Such as 2A/3 =8+4A
March 21, 2013

Physics
same and yea he does this is nuts
March 16, 2013

calculus
If that is the case, Damon, wouldn't the answer just be 1?
March 9, 2013

probability
choose a number 1 to 100. What is the probability that the number is not a multiple of 5?
March 8, 2013

Social Studies
3 5 and 6 are wrong
February 28, 2013

Social Studies
Im on the same thing
February 28, 2013

Algebra
In a Quadratic function if -b=-2 and 2a=2/3 do you eliminate the two and x equals negative three or... What would x end up being?
February 25, 2013

Should it be 1 1/2
January 23, 2013

How do I divide this ... 3 divided by 1/2
January 23, 2013

spanish
Preparamos because the subject, Sarits y yo, is plural and includes yo. This means that the nosotros conjugation of the verb is needed. Preparan is ellos or ustedes.
January 4, 2013

Calculus
Find the limit lim x->2 (2x^2 +1)/(x^2 + 6x -4)
November 30, 2012

chemistry
Use Avogadro's number 6.022 X 10^23.
October 9, 2012

physics
A 0.73 kg ball is thrown straight up with an initial velocity of 2.50 m/s. Taking the potential energy of gravity to be zero at the height from which the ball is thrown, determine its gravitational potential energy at the balls highest point. Ignore air resistance.
October 5, 2012

physics
You are planning to build a log cabin in northern Minnesota. You will pull the logs up a long, smooth hill to the building site by means of a rope attached to a winch. You need to buy a rope for this purpose, so you need to know how strong the rope must be. Stronger ropes cost...
September 27, 2012

physics
You are part of a team to help design the atrium of a new building. Your boss, the manager of the project, wants to suspend a 16.0 kg sculpture high over the room by hanging it from the ceiling using thin, clear fishing line (string) so that it will be difficult to see how the...
September 27, 2012

phsycis
A tight-rope walker walks across a 30.0 m long wire tied between two poles. The center of the wire is displaced vertically downward by 1.0 m when he is half-way across. If the tension in both halves of the wire at this point is 3675 N, what is the mass of the tight-rope walker...
September 20, 2012

phsyics
To move a large crate across a rough floor, you push on it with a force F at an angle of 21¨¬ below the horizontal. The mass of the crate is 31 kg, ¥ìs is 0.57, and ¥ìk is 0.45. Find the force necessary to start the crate moving
September 19, 2012

Math
If you had a new business and you had 30 customers the first week and 55 customers the second week and 80 customers the third week, what would you project for week 4? Explain how you arrived at your answer.
September 14, 2012

physics
The engine of a 1250 kg car provides a forward directed force of 3,560 N. If the car accelerates at a rate of 2.60 m/s2, what is the total resistive force (wind resistance, friction, etc.) acting on the car?
September 13, 2012

Math
What is a shortcut for finding the sum of all numbers from 1-99?
September 11, 2012

physics
The eye of a hurricane passes over Grand Bahama Island in a direction 60.0° north of west with a speed of 36.1 km/h. Three hours later, the course of the hurricane suddenly shifts due north, and its speed slows to 26.9 km/h. How far (in km) from Grand Bahama is the ...
September 9, 2012

physics
A gray kangaroo can bound across a flat stretch of ground with each jump carrying it 9.3 m from the takeoff point. If the kangaroo leaves the ground at a 17.6 degree angle, what is its takeoff speed?
September 8, 2012

Physics
You push your couch a distance of 3.6 m across the living room floor with a horizontal force of 198.0 N. The force of friction is 151.0 N. What is the work done by you, by the friction force, by gravity, and by the net force?
May 27, 2012

Physics
A car of mass m = 1450 kg is traveling at a speed of v0 = 79 km/h (21.9 m/s). Calculate the work that must be done by the brakes to completely stop the car in kJ
May 27, 2012

Physics
That's what I figured but I wasn't sure because it talks about the negative side of the x-axis. However, looking at the question again, a) is the only answer that makes sense. Thank you.
May 23, 2012

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