Thursday
February 11, 2016

Posts by Ryan

Total # Posts: 1,095

MATH 4 GRADE
Josh is watering his plants. He gives each of 2 plants 3/5 pint of water. His watering can holds 1/5 pint. How may times will he fill his watering can to water both plants> show a visual model to solve
February 10, 2016

algebra
The volume of a triangular prism is 264 cubic feet the area of the base is 48 square feet. Find the height of the prism
February 1, 2016

Math
I am really confused. I am trying to convert quarters to dimes to see which is greater. The problem is 540 quarters _ 2000 dimes. Please explain so I can understand how to convert the two numbers.
January 17, 2016

Chemistry
Aqueous hydrobromic acid will react with solid sodium hydroxide to produce aqueous sodium bromide and liquid water. Suppose 61. g of hydrobromic acid is mixed with 41.1 g of sodium hydroxide. Calculate the maximum mass of water that could be produced by the chemical reaction
January 15, 2016

math
trail mix is sold in 1 lbs bags Mary will buy trail mix and repackage it so that each of the 15 members of her hiking club gets 1 2/5 lbs bags. How many 1 lbs bags of trail mix should Mary buy to have enough trail mix without leftovers?
December 10, 2015

Math
Jonathan burns 15 calories per minute he runs on the treadmill Jonathan ran 5 minutes on Monday 12 minutes on Tuesday and 8 minutes on Wednesday which integer represents the amount of calories burned during his workouts
December 10, 2015

PreCalculas help
Thank you
December 7, 2015

PreCalculas help
I really need help Find the equation of the hyperbola 1.Vertices(-4,0)(4,0) Asymptotes: y=1/3x, y=-1/3x 2.Vertices(-6,0)(6,0) Asymptotes: y=4/3x, y=-4/3x For the first one i got ((x-9)^2+y^2-(x+9)^2+y^2+16=0
December 7, 2015

Central Valley
How can two rectangles each have an area of 12 units, but have different lengths and widths
December 4, 2015

PreCalculas check
And write the equation of the ellipse Foci(3,1)and(7,1) Major axis length=10 I got (x-5)^2/5+(y-1)^2/0=1
December 3, 2015

PreCalculas check
Write the equation of the parabola 1.Vertex(2,5) Focus(2,-3) 2.Directrix=x=3/4 Focus(5/4,-3) For 1. i got(x-2)^2=32(y-5)^2 For 2. i got y=8x^2-20x-61/60
December 3, 2015

PreCalculas
Write the equation of the parabola 1.Vertex(2,5) Focus(2,-3) 2.Directrix=x=3/4 Focus(5/4,-3) For 1. i got(x-2)^2=32(y-5)^2 For 2. i got y=8x^2-20x-61/60
December 3, 2015

PreCalculas
Thanks i see what i did wrong
November 30, 2015

PreCalculas
im sorry the 1 is l and the zero is the lower exponet
November 30, 2015

PreCalculas
The psychological sensation of loudness B is measured in decibels and is defined with reference to the intensity, , of a barely audible sound by the following equation. In this equation, I is the intensity of the sound in question. B=10log 1/1o If the sound of a jet engine ...
November 30, 2015

Math
[Multivariable Calc] Let R be the region that is inside of the cardioid r=2 + cos(theta) and outside the circle r=2? So i need to calculate the: *area of R, as well as *the volume above R and below plane z=12-3x *the density of that solid if the density d(x,y,z) =z *the center...
November 28, 2015

Pre Calculas
True or false (logx)^2=2logx True or false in56/in7=in8 i got true for the first one and false on the second im sorry for posting today but i just need someone to check
November 26, 2015

Pre Calculas
If you deposit $5,000 in an account that pays 5% interest compounded annually, how much money will you have in your account at the end of 15 years? Write an exponential function that represents this situation. I got 1,500,000 but im not sure if i did it right and im stuck
November 25, 2015

Math
The average of a group of seven test scores is 80. If the lowest and highest scores are thrown out the average of the remaining scores is 78. What is the average of the lowest and highest scores?
November 23, 2015

Math
9.50 - 7.18 does not equal 2.48. The answer to the equation is 2.32.
November 18, 2015

Math/Finance
You have found the following stock quote for RJW Enterprises, Inc., in the financial pages of today's newspaper. 52 Week High: 72.18 Low: 43.17 Stock (DIV): RWJ 1.28 Yield (%): 2.1 PE: 21 VOL (100s): 17652 Close: ???? Net change: -.23 What was the closing price for this ...
November 18, 2015

math - linear programming
A candy company makes a chocolate nut mix and and a chocolate fruit mix. The nut mix uses 2 pounds of chocolate, 2 pounds of nuts and no fruit. The fruit mix uses 4 pounds of chocolate,no nuts and 2 pounds of fruit. The nut mix brings in $7 profit and the fruit mix brings in $...
November 16, 2015

Algebra
60 decreased by the quotient of a number and 4. I am reading it as: n-4/60 Am I correct?
November 11, 2015

Accounting
When Resisto Systems, Inc., was formed, the company was authorized to issue 5,000 shares of $100 par value, 8 percent cumulative preferred stock, and 100,000 shares of $2 stated value common stock. Half of the preferred stock was issued at a price of $104 per share, and 78,...
November 8, 2015

Physics
Miss E. deWater, the former platform diver of the Ringling Brothers' Circus, dives from a 80.0-meter high platform into a shallow bucket of water (see diagram at right). Determine her speed and her height after each second of fall. When t = 0 s: speed = 0 m/s and height = ...
November 6, 2015

Physics
Miss E. deWater, the former platform diver of the Ringling Brothers' Circus, dives from a 80.0-meter high platform into a shallow bucket of water (see diagram at right). Determine her speed and her height after each second of fall. When t = 0 s: speed = 0 m/s and height = ...
November 6, 2015

Math
That's what I thought but the answer in the book says 1/3.
November 2, 2015

Math
Joey has 4 pairs of pants,6 shirts, and 2 pairs of shoes, but only 1 favorite pair of pants, 1 favorite shirt, and 1 pair of shoes. If he randomly selects an outfit to wear, what it the probability that it will be his favorite pants, shirt, and shoes?
November 2, 2015

algebra
Monica earned $60 from a bonus plus $8.50 per hour (h) she worked this week. Which of the following expressions best represents Monica's income for the week?
October 28, 2015

Math1
8.66666
October 21, 2015

Math
46.875
October 21, 2015

Analytical Mechanics
a gun is fired with muzzle velocity v0 = 1000 m/s straight up along the z-axis. While moving through the air the Earth's gravity pulls on the bullet, which has mass m = 20 grams and the bullet's air resistance force can be approximated by the relationship Fresist = -cv...
October 20, 2015

Physics-E&M
8.1 Collision? A permanent magnet creates a homogenous magnetic field B~ inside a rectangular region. The magnet is moving with a velocity ~v ⊥ B~ . A particle at rest with mass m and charge Q is on the path of the magnet. Assume that the magnet has a mass much larger ...
October 19, 2015

Linear Algebra
2. Suppose that T is a linear transformation from R2 to R4 such that T ((1, 1)) = (3, −1, 4, −3) and T ((2, −1)) = (3, −2, −1, −3). Determine the matrix of T (with respect to the standard bases). 3. Suppose that T is a linear transformation ...
October 18, 2015

Physics
Remember the Poynting vector? The magnitude of this vector gives the amount of energy per second that flows through a unit area (in the direction it gives) because of the presence of a combination of electric and magnetic field, like in an electro-magnetic wave. The units for ...
October 14, 2015

Physics
If there was a way to accelerate a spaceship close to the speed of light to go visit some neighboring star system, one would still face the problem that every particle the spaceship finds on its way will be a projectile hitting it with almost the speed of light, causing ...
October 14, 2015

Physics
A permanent magnet creates a homogenous magnetic field B~ inside a rectangular region. The magnet is moving with a velocity ~v ⊥ B~ . A particle at rest with mass m and charge Q is on the path of the magnet. Assume that the magnet has a mass much larger than the particle...
October 14, 2015

PreCalculas
Lol thank you i dont know why i was confused when it was that simple
October 14, 2015

PreCalculas
A ball is thrown upward with an initial velocity of 4 ft/sec from a height of 10 feet. What is the maximum height that the ball will reach? h(t)=-16t^2+v0t+s0 Please help im lost
October 14, 2015

Pre Calculas
Im having a little trouble help please? 1.Given the table below, evaluate the following: x -3 -2 -1 0 1 2 3 4 5 f(x) 10 20 30 40 50 60 70 80 90 g(x) -1 -2 -3 -4 -5 -6 -7 -8 -9 a. (3f+2g(1) b. (fog)(-1) 2. Express the following function, H(x) as a composition of two functions f...
October 8, 2015

All
:) You're welcome!
October 8, 2015

All
The only one I can get is 7 which is 50%. ~ Ryan
October 8, 2015

math
Long - 19.5862068966 Short - 19.58 or 19.5
October 8, 2015

Science
What were five accomplishments of marie curie?
October 6, 2015

Pre Calculas
7. For the function defined by: f(x)= {x^2, x<=1} {2x+1, x>1} a. evaluate f(0) 8. Solve the following system of equations algebraically. Verify your solution either graphically or by using matrices. 3x-y=0 5x+2y=22 9. Solve the following system of equations algebraically...
October 6, 2015

Pre Calculas
Thanks Steve for the help
October 5, 2015

Pre Calculas
Im really struggling and need help with this 1. One of the tables below contains (x,y) values that were generated by a linear function. Determine which table, and then write the equation of the linear function represented by the Table #1 x 2 5 8 11 14 17 20 y 1 3 7 13 21 31 43...
October 5, 2015

american history
how do you think the Europeans and the tainos perpective on their encounter vary
October 2, 2015

help me with social studies
"Explain the role of law in limiting U.S. government and protecting citizens" is the exact question.
October 2, 2015

help me with social studies
There is 6 pages before hand in it giving information, but i've read through it slowly and dozens of times, but i could not find it.
October 2, 2015

help me with social studies
Text? do you mean my text book? because this unit did not come with a text book.
October 2, 2015

help me with social studies
What was the role of law limiting in u.s goverment and protecting citizens
October 2, 2015

algebra
find the solutions to the equation; x^(2/5)-8x(1/5)+16=0
September 29, 2015

Science
I have homework in which it asks "Describe the difference between elements, mixtures and compounds. (I have done the first sentence as it was fairly easy. Next is the part I don't understand) You need to draw their chemical formulae (for example KCl for potassium ...
September 26, 2015

physics
If the print area of each tire of a car is 24 inch2 and the tire pressure is 30psi, what the weight of the car in pounds?
September 18, 2015

David A. Brown
Jonathan measure 2 cups of flour into a bowl on the counter then he spilled part of it and now there is only three eighths cup left how much did he spill
September 15, 2015

Math
S= L(1-r), solve for r I tried both distributing L and dividing by it, but I am not sure which way is correct. Any help would be much appreciated.
September 14, 2015

Math
17676
September 10, 2015

Math
. Jordan’s Jeans Company reported net income for 2014 of $871,800 and the company paid dividends of $0.08 per share in 2014. Given this information (along with the data provided above), compute what Jordan’s Jeans Company reported as retained earnings on its December...
September 10, 2015

math
In 2014, Timmers, Inc. (a retail clothing company) sold 102,300 units of its product at an average price of $100.00 per unit. The company reported estimated returns and allowances in 2014 of 1.5 percent of gross revenue. Timmers actually purchased 109,500 units of its product ...
September 10, 2015

Physics
I solved it! It is: ((m_rock*g)-(m_rock/(g*density_rock))*density_liquid*g)/(lower frequency squared) = (m_rock*g)/(higher frequency squared) Then just solve for density_liquid :)
August 13, 2015

math
If a line whose x- and y- intercepts are equal does not pass through the origin, then its slope must be A. 0 B. 1 C. -1 D. undefined I'm thinking it's 0, I don't know though.
August 3, 2015

math
The result of adding a number to itself is usually unequal to the result of multiplying the number by itself. For how many different numbers are these results equal? A none B. one C. two D. four
August 3, 2015

math
If a line whose x- and y- intercepts are equal does not pass through the origin, then its slope must be A. 0 B. 1 C. -1 D. undefined I'm thinking it's 0, I don't know though.
August 3, 2015

math
That's what I thought, but that's what the question says... Might be a bad question. Thanks though!
August 3, 2015

math
I watched 1000 ants build an anthill in 5 hours. Working at the same rate, 2500 ants could have built the anthill in ? hours? A. 1 B. 2 C. 3 D. 4 I made a proportion of 1000/5=2500/x, and got 12.5, but thats not a choice. HELPS!
August 3, 2015

math
In a pseudopythagorean triangle, the sides are all integers and the sum of the square roots of the sides equals the square root of the third side. How many pseudopythagorean triangles are there. A. none B. 1 C. 2 D. more than 2 this is such a confusing question
July 30, 2015

Easy Math??
Carol started from home on a trip averaging 30 miles per hour how fast must her mother drive to catch up to her in 3 hours if she leaves 30 minutes after Carol? Use an equation to solve your work. a.35 mph b.39 mph c.40 mph I heard that the answer is a, but I don't know ...
July 30, 2015

Easy Math??
I do believed the question was about 5 years old. Thanks though!!!!
July 29, 2015

Easy Math??
The stock that Mr. Ames bought cost him $80 a share. The par value of the stock is $100. If the stock pays $6 a year in dividends, what rate of interest is Mr. Ames getting on his money? A.16 2/3% B.7 1/2% C.3% D.6% E.None of the above Personally, what made the problem ...
July 29, 2015

Calculus
Hi Henry, can you explain the second part of your answer please? Is that the answer to the "What correction needs to be made" part? What is that "i"?
July 29, 2015

math
If n is a positive integer, n! is the product of the first n positive integers. For example, 4! = 4 x 3 x 2 x 1 =24. If u and v are positive integers and u!=v! x 53, then v could equal A. 6 B. 8 C. 56 D. 57
July 21, 2015

math
If the lengths of the sides of a rectangle are integers, and if one side is 2 more than another, then the perimeter could equal A. 1998 B. 1999 C. 2000 D. 2002 I started this, but I'm not sure what they're asking and I don't know how to solve it.
July 21, 2015

math
Of the following, which must be true whenever x^1998 = y^1998? A. x^999=y^999 B. x^1997=y^1997 C. x^1999=y^1999 D. x^2000=y^1000 I tried plugging in 2 for x and y, but the calculator said overflow...
July 21, 2015

Stoichiometry chem
Just to recap: I divide the grams of the compound by its molar mass. From there, I do the mol conversion from CaCO3 to C and that will by my answer.
June 27, 2015

Stoichiometry chem
If there is one mole of Carbon for every CaCO3, all I had to do was divide it and that would be my answer (2.498)? What if it was 2 moles of carbon instead of one, what would I have to do then?
June 27, 2015

Stoichiometry chem
How many moles of carbon are found in 250.0 g of CaCO3? I started off with finding the molar mass of CaCO3, which is 100.09g. From there I divided 250g by 100.09g, but I have no idea what to do from there.
June 27, 2015

Science
When you change the dna code to mRNA, will A become U or T?
June 14, 2015

math
A circle of radius 2 is externally tangent to a circle of radius 8. Compute the length of their common tangent.
June 6, 2015

math
Solve for all real values of x is 9^x+2=240+9^x THIS ONE IS HARD
June 6, 2015

Math
Joan's stamp collection consists of three books. Two tenths of her stamps are on the first book, several sevenths are in the second, and there are 303 stamps in the third book. How many stamps are there in Joan's collection?
June 6, 2015

math
In triangle ABC, AC=BC. The point D is on BC such that AB=AD=DC. Compute the measure of angle C. I'm not sure how to do this...
June 6, 2015

Chemistry
when I do m=M*n I get a really high Number which I don't think is right.
June 4, 2015

Chemistry
How many grams of zinc metal are required to produce 2.00 L of hydrogen gas at STP according to the chemical equation shown below? Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)
June 4, 2015

prealgebra
find the slope of a road that rises 5 feet vertically for every 45-foot horizontal increase.
May 14, 2015

Algebra 2 Honors
Hey, we recently started a topic in class that I don't understand well, I just want to post 6 of the problems and ask if they're right or not (some of them I have no idea how to do). 1. If a varies directly as b and b = 18 when a = 27, find a when b = 10. For this I ...
May 13, 2015

Organic chemistry
What is the product formed when phtalic anhydride reactors with D2O/D+? Thank you in advanced!
May 13, 2015

Chemistry Gas Law
How many grams of Mg must react with HCl in order to produce 40.0 ml of hydrogen gas at 22 degrees celsius and 1.02 bar? If the magnesium ribbon weighs 1.83mg/mm, how many mm of the ribbon will you require? Thanks in advance for your help!!
May 12, 2015

Math
The tail on Alex's dog is 5 1/4 inches long this like this between which 2 inch March on a ruler
May 12, 2015

Trig identities
Thank you so much!
May 12, 2015

Trig identities
Sin x/[1-cos(-x)] = csc x + cot x Please Verify the Identity. I have been going in circle with this one... Just a hint would be nice. Thank you.
May 12, 2015

Math
Very easy to get the best thing pyramid
April 15, 2015

Math
Very easy to use it for a few days ago I have a good one for the rest of your own life and death and the rest of my friends to play it on a Friday morning
April 15, 2015

chemistry
Calculate the weight in grams of potassium hydrogen phthalate (KHP, KHC2H3O2, MW 202.2 g/mole) required to neutralize 25.00 ml of 0.1 M NaOH solution.
April 15, 2015

chemistry
Describe in detail how you would prepare 500 ml of 0.1 M HCl from 6 M HCl stock solution.
April 15, 2015

chemistry
Describe in detail how you would prepare 1000 ml of 0.1 M NaOH from 6 M of NaOH stock solution.
April 15, 2015

Health
yep c i got it right as well.
April 14, 2015

Maths help
W= rad/s and a = 0.6. My mistake Very sorry reiny it's just that I'm in desperate need of help and no one Is answering my questions. Could you please help me?
April 12, 2015

Maths help
The angle of a rotating shaft turns in t seconds is given by theta= ω+1/2at^2 and it is given that ω=3 2 rad/s and α=0.6 rad/s to complete θ=4 radians. Determine the time taken to complete θ=4 radians.
April 12, 2015

Maths help
Two resistors in series, R1 and R2, have a total resistance of 1,600 ohms. The resistance of R2 is 560 ohms less than twice R1. Find the resistance of R1 and R2.
April 12, 2015

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