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October 2, 2014

Posts by Adam


Total # Posts: 840

Chemistry
13.39%
October 26, 2011

Alg1
A baseball player hits a baseball into the outfield. The equation h= -0.005x^2 +x+3 give the path of the ball, where (h) is the height and (x) is the horizontal distance the ball travels. A. What is the equation of the axis of symmetry? It's -100 right? B. What is the Mac...
October 20, 2011

University Chemistry (first year)
According to your percentage yield, the beverage can can produce 12.72g of alum > 13.33 * (95.41%) = 12.72g If you refer to page 49 of your laboratory book, under the "the laboratory project", you will see written: "25g to 300g of alum per 1000L of water is ...
October 17, 2011

acc/422
Week Two Individual Assignment the Robert Hughes Hardware Company My friend Robert Hughes runs hardware business in down town Dallas. Because of competition he relies on neighborhood customers for sales. From inception of operations to December 31, 2010, Robert Hughes Hardware...
October 16, 2011

accounting
My friend Robert Hughes runs hardware business in down town Dallas. Because of competition he relies on neighborhood customers for sales. From inception of operations to December 31, 2010, Robert Hughes Hardware Company provided for uncollectible accounts receivable under the ...
October 16, 2011

College Physics
Thank you, How would I calculate acceleration and magnitude once the ball is cut?
October 11, 2011

College Physics
A charged particle is hanging from the side of a wall by means of an uncharged string. The wall has a negative charge producing a horizontal electric field. The particle has a mass of .01 Kg. and charge of -80(micro)C and is suspended by a string .3m long. The electric force ...
October 11, 2011

college algebra
always true
October 6, 2011

Number Systems
Convert 103 base 16 to base 10.
October 6, 2011

Number Systems
11100110101 into base 10, base 8, base 16.
October 6, 2011

physics
A particle at rest undergoes an acceleration of 2.9 m/s2 to the right and 2.6 m/s2 up. What is its speed after 5.3 s? Answer in units of m/s
October 1, 2011

help please
B is not a good answer..
September 25, 2011

Physics
In mathematical language, Newton's Law of Gravity expresses the force of gravity, F, between two objects in the following way: F= (GMm)/r^2 where M is the mass of one object, m is the mass of the other object, r is the distance between the two objects, and G is the ...
September 22, 2011

Math
I think its either A or B but im not sure cause when i multiply 1/6 and 567.00 and 4 i get 378.00 but when i multiply 567.00 and 4 and divide that by 1/6 i get 13,608.00
September 15, 2011

Math
Jill plans to save 1/6 of her salary each week. If her weekly salary is $567.00, how much will she save in four weeks? (a) $ 378.00 (b) $ 13,608.00 (c) $ 13,680.00 (d) $ 850.50 (e) $ 855.00
September 15, 2011

Math
Find the interest if $ 9,000 is invested at an annual simple interest rate of 8 % for 3 years. Use the formula I = P × R × T , where I is the interest earnings, P is the principal, R is the annual rate and T is the time, expressed in years. (a) $ 216,000 (b) $ 4,...
September 15, 2011

biology
how do I draw a food web for a dog and a horse? arent they both primary consumers I have to answer this.
September 10, 2011

geometry
How do I determine the length and width of a prism that has a height of 3 in, all edges are integers, the numerical values of the volume and of the surface area are equal and the volume is as small as possible?
September 8, 2011

math
the portuguese national flag is a rectangle in the center of the flag is a coat of arms and shield on a circle.this circle has a diameter that is half the flags height.if the flags circle has an area of 3.14 square feet,what is the height of the flag?
September 7, 2011

Science
What is the name for the study of sound. It starts with an e i think.
September 1, 2011

Physics 2010
Which has the greater kinetic energy: a bowling ball that slides down the lane without rolloing, or one of the exact same mass that moves at the same translational speed but rolls without slipping?
August 12, 2011

math
River Current A boat can travel 36 miles upstream in the same time that it can travel 54 miles downstream. If the speed of the current is 3 miles per hour, find the speed of the boat without a current.
August 2, 2011

Chemistry
How calculate concentration by using molecular weight.
July 19, 2011

Algebra 2
Solve: (x-3)^2= -4
July 4, 2011

Algebra 2
Solve: (x-3)^2= -4
July 4, 2011

Algebra 2
How do I factor 4x+12??
July 4, 2011

Chemistry
A voltaic cell is based on the following two half reactions: Fe2+(aq) + 2 e¯ ---> Fe(s); Eo = -0.44 V Cu2+(aq) + 2 e¯ ---> Cu(s); Eo = +0.34 V When [Cu2+] = 0.0500 M, Ecell = + 0.80 V. What is the [Fe2+] for these conditions?
June 24, 2011

Algebra II
Find the radius and center of the circle which passes through the points (-2,3), (0,-3), (4,-3).
June 23, 2011

Chemistry
Which of the following is the strongest oxidizing agent in acidic solution? DATA: Ba2+(aq) + 2 e¯ ---> Ba(s); Eo = - 2.91 V Mn2+(aq) + 2 e¯ ---> Mn(s); Eo = - 1.18 V 2 H+(aq) + 2 e¯ ---> H2(g); Eo = 0.00 V Au3+(aq) + 3 e¯ ---> Au(s); Eo = + 1.50...
June 19, 2011

Algebra 2
Suppose you did a survey of male shoes size and the mean of that survey was size 10 with a standard deviation of 1.5. What is the z-score of a size of 7.5?
June 7, 2011

Chemistry
A few drops of AgNO3 is added to a sample of the unknown. A white precipitate appears. Which ion is present?
June 6, 2011

Chemistry
a piece of copper at 120 degrees celsius has exactly twice the mass of another piece of copper at 40 degrees celsius. The two pieces are brought together and allowed to reach equilibrium. What is the final temperature.
May 31, 2011

Trigonometry
2cos^2theta-3costheta+1=0 inerval [0,2Pi)
May 30, 2011

Trigonometry
2cos[x-pi/8]-sqrt2=0 Pi=3.141592654
May 30, 2011

Trigonometry
If tan theta= 3 and Pi<theta<3Pi/2, find cos theta. Pi=3.141592654
May 30, 2011

Trigonometry
Solve triangle ABC: B= 60 degrees, C= 90 degrees a= 4 feet
May 30, 2011

Trigonometry
Solve triangle SSA: A= 78 degrees, a= 30 b= 61
May 30, 2011

Trigonometry
Solvetriangle ABC: a= 12.2 c= 7.8 B= 63.5 degrees
May 30, 2011

Calc
How would you integrate 18x-33/√(3x^2-11x+6)
May 26, 2011

Chemistry
3) The chemical formula for ethylene glycol (antifreeze) is C2H6O2 and Isopropyle alcohol is C3H7OH. Calculate the new boining and freezing oints for 1000.0 g of aqueous solution (total volume), that is 30.0% solute (the antifreeze and the alcohol are the solutes). You will ...
May 19, 2011

Organic Chem
what is the product when 2-methylbutanal is treated with cold base?
May 12, 2011

Algebra
A ball is hit straight up initially with the felocity of47 ft per second The height(h) of the softball in ft above ground after(t) seconds, Using the equasion H=-16 square + 47 T + 3. How long was the softball in the air before it hit the ground?
May 2, 2011

math
I have 2 draw a set of 12 circles:Color 5/12 of set blue, 1/3 of set red, &1/6 of set green. Not grasping the concept.
May 2, 2011

Physics
What is the acceleration of a proton moving with a speed of 4.3 m/s at right angles to a magnetic field of 2.1 T?
May 1, 2011

math
144 squared is rational right?
April 28, 2011

Math
Estimate to the nearest integer. Square root of 40.
April 28, 2011

chem
We can treat the equilibrium constant as the ratio of the forward rate constant, kfwd, with respect to the reverse rate constant, krev. That is: Keq = kfwd / krev. Which statement is true? a) kfwd > krev b) kfwd < krev The answer is A but how would you explain why that ...
April 27, 2011

chemistry
Initially, there are 33 moles of A and 0 moles of B. How many moles of A and B will be present after the system reaches equilibrium? a) 33 moles A; 0 moles B b) 0 moles A; 33 moles B c) 3 moles A; 30 moles B d) equal amounts of A and B The answer is given as "C" but ...
April 27, 2011

organic chem
(b) One of your illustrious colleagues continues his/her education and finally obtains employment with a renowned pharmaceutical company as an organic chemist. He or she is asked to synthesize pantothenic acid because the company wants to use it to prepare a synthetic form of ...
April 26, 2011

organic chem
(b) One of your illustrious colleagues continues his/her education and finally obtains employment with a renowned pharmaceutical company as an organic chemist. He or she is asked to synthesize pantothenic acid because the company wants to use it to prepare a synthetic form of ...
April 26, 2011

chemistry
The Kb for butylamine is 5.9x10^-4. What is the Ka for its corresponding conjugate acid, butylammonium? I really need help with this. I have no idea what to do. All I know is the equation to fine "Ka."
April 22, 2011

PHYSICS help please
40530 = 40% of 101325 This number equals the net force (N per Square meter). Area of door: Width x Height= 2x40530 = 81060
April 15, 2011

calculus
4(x*3)=2(x-4)+25
April 11, 2011

finance
You were hired as a consultant to Giambono Company, whose target capital structure is 40% debt, 15% preferred, and 45% common equity. The after-tax cost of debt is 6.00%, the cost of preferred is 7.50%, and the cost of retained earnings is 12.75%. The firm will not be issuing ...
April 2, 2011

chemistry
The standard enthalpy of formation for sulfur dioxide gas is -296.8 J. Calculate the amount of energy given off in kJ when 30.0 g of SO2 is fromed from its elements
March 31, 2011

Finance
I missed one day of class and now i cannot figure this out... I thought that price and YTM relied on each other and now I have a question asking to solve for each? An 11% semiannual bond matures in 7 years. The bond has a face value of $1,000 and a current yield of 10.76%. ...
March 29, 2011

chemistry
1. I'm not sure 2. "no reaction" 3. 2HBr(aq)+Sn(s) --> SnBr2(aq)+H2(g) 4. "no reaction" 5. "no reaction"
March 27, 2011

Statistics and Probability
Suppose you took 1000 random samples of size 200 from the Poisson distribution with u = 5 and computed a 90% confidence interval for each sample. Approximate the probability that at least 920 of these intervals would contain the mean value u = 5. Be sure to define any random ...
March 27, 2011

math
how do you fill in the table for y=1/2 (x-8)
March 24, 2011

Statistics and Probability
A research manager at Coca-Cola claims that the true proportion, p, of cola drinkers that prefer Coca-Cola over Pepsi is greater than 0.50. In a consumer taste test, 100 randomly selected people were given blind samples of Coca-Cola and Pepsi. 58 of these subjects preferred ...
March 23, 2011

Finance
A firm has forecasted sales of $3,000 in April, $4,500 in May and $6,500 in June. All sales are on credit. 30% is collected the month of sale and the remainder the following month. What will be the balance in accounts receivable at the beginning of July
March 21, 2011

Math
10 times
March 19, 2011

PHYSICS
WHAT TYPE OF MIRRORS ARE USED IN A PERISCOPE(CONCAVE, CONVEX?) ALSO,DRAW A RAY DIAGRAM OF A PERISCOPE
March 19, 2011

cis 115
So what logic is used when pseudocoding compound conditions
March 17, 2011

Geometry
sXq 3.97 is lengith
March 14, 2011

microbiology
adjust ur scale and use E-ve numbers try using ln instead of logs dont be afriad to start ur graph later...instead of at 0 or 1
March 14, 2011

neeeedddd help noooow!!!
x= 7
March 14, 2011

math CA
pay me 25$ and i will do it
March 14, 2011

precalc
N*p/100 good luck mate
March 13, 2011

Statistics and Probability
A computer supply house receives a large shipment of blank CDs each week. Past experience has shown that the number of flaws per CD can be described by the following probability distribution, where the random variable X represents the number of flaws per CD. x P(X = x) 0 0.65 ...
March 9, 2011

Statistics and Probability
Suppose that the proportion of students who used the Internet as their major resource for school in the past was 66%. A sample of 1000 students was taken and the number of students who used the Internet for their school during the past year was recorded. Let ��&#...
March 9, 2011

Statistics and Probability
Suppose that the proportion of students who used the Internet as their major resource for school in the past was 66%. A sample of 1000 students was taken and the number of students who used the Internet for their school during the past year was recorded. Let ��&#...
March 9, 2011

Mathematics (Help? Please. )
B= 180 - 87 B= 93 degrees.. :)
February 27, 2011

math
log3 (x^2-4) -log3 (x+2)=2 log3 [(x^2-4)/x+2)] = 2 log3 [(x+2)(x-2)/(x+2)] = 2 log3 (x-2) = 2 x-2 = 3^2 x = 11
February 27, 2011

Mathematics
um i think u wrote H and/or J wrongly but its either H/J.. u wrote the answer wrongly fully hope it helps
February 27, 2011

physics
11.54?
February 27, 2011

physics
A charge of .250 C moves vertically in a field of .500 T that is oriented some angle from the vertical. If the charges's speed is 2.0 x 10 ^2 m/s, what angle(s) will ensure that the force acting on the charge is 5.0 N?
February 27, 2011

physics
A charge of .250 C moves vertically in a field of .500 T that is oriented some angle from the vertical. If the charges's speed is 2.0 x 10 ^2 m/s, what angle(s) will ensure that the force acting on the charge is 5.0 N?
February 27, 2011

Statistics and Probability
Ok daddy :)
February 27, 2011

Statistics and Probability
Suppose a basketball player successfully makes 70% of the free throw shots they attempt. Let X represent the number of successful attempts in 120 independent attempted free throws. (A) What is the true probability distribution of X? (B) Find the mean and variance of the number...
February 27, 2011

statistics and probability
It is known that an exam scores of students in STAT 2507 follow a normal distribution with a mean of 70% and a standard deviation of 9%. (A) If a student must obtain a mark of 50% to pass the exam, what proportion of students fail the exam? (B) What is the probability that a ...
February 26, 2011

statistics
Suppose a basketball player successfully makes 70% of the free throw shots they attempt. Let X represent the number of successful attempts in 120 independent attempted free throws. (A) What is the true probability distribution of X? (B) Find the mean and variance of the number...
February 26, 2011

Math/Finance
A guy buys a car for $29,000 and finances it with a four year, 7% APR with monthly payments and compounding. How much of his third payment goes toward repaying principal?
February 23, 2011

Finance
A guy buys a car for $29,000 and finances it with a four year, 7% APR with monthly payments and compounding. How much of his third payment goes toward repaying principal?
February 23, 2011

ALGEBRA
Suppose that R is the set of real numbers. Let f: R--> R be defined by f(x)= mx+b, where m and b are real numbers and m is nonzero. Prove that f is a bijection.
February 20, 2011

ALGEBRA
Suppose that R is the set of real numbers. Let f: R--> R be defined by f(x)= mx+b, where m and b are real numbers and m is nonzero. Prove that f is a bijection.
February 20, 2011

ALGEBRA
Suppose that R is the set of real numbers. Let f: R--> R be defined by f(x)= mx+b, where m and b are real numbers and m is nonzero. Prove that f is a bijection.
February 20, 2011

7th grade math worksheet
Need help on how to actually do the rise/run and equations to figure out the anxwer to "What do you call a duck that steals?" worksheet. I can find the answer on your websight, but I need to show my work for numbers 1-6 using rise/run and numbers 7-18 using the ...
February 17, 2011

Physics
What is the emf of a battery with a 0.15 Ω internal resistance if the battery delivers 1.5 A to an externally connected 5.0 Ω resistor?
February 14, 2011

Math
Is the answer (x-2)^2+(y-1)^2=40
February 5, 2011

Math
The point (-4.3) lies on a circle whose center is at (2,1). Find an equation of this circle.
February 5, 2011

Math
thanks for the help
February 5, 2011

Math
Suppose that the height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning. After 11 hours of burning, a candle has a height of 18.6 centimeters. After 27 hours of burning, its height is 12.2 centimeters. What is the height ...
February 5, 2011

Algebra
I'm not sure I will look over my notes to see what I come up with.
February 4, 2011

Algebra
Sorry didn't see Reiny's post
February 4, 2011

Algebra
don't I need to put it in y= formula first?
February 4, 2011

Algebra
Graph the parabola x^2+8x-5y+21=0
February 4, 2011

Algebra
Thanks!
February 1, 2011

Algebra
Solve. (7+u)(3u-1)=0 (If there is more than one solution, separate them with commas.)
February 1, 2011

finance
Rob has $1,000 to invest for 120 days and is considering two options. Option 1: He can invest the money in a 120-day GIC paying simple interest of 4.48%. Option 2: He can invest the money in a 60-day GIC paying simple interest of 4.50% and then re-invest the maturity value ...
February 1, 2011

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