Cyn
Most popular questions and responses by Cyn
history
how does novikov describe the united states ?what evidence does he use to support his description
asked on May 3, 2016 
MATH  solving exponential equations
The halflife of sodium24 is 14.9 hours. A hospital buys a 40 mg sample of sodium24. a) How many grams, to the nearest tenth, of sodium21 will remain after 48 h? b) After how long will only 2.5 mg remain? I don't know how to write the exponential
asked on December 1, 2009 
math
the product of two whole number is 65 what is the sum of the two number
asked on February 29, 2016 
physics
Calculate the force of gravity on a spacecraft 12800 km above the earth's surface if its mass is 700 kg.
asked on December 6, 2009 
Chemistry
7.77 g of rush (an oxide of iron) is heated until all the O2 atoms combine with charcoal. When this is done, a pellet of pure iron with a mass of 5.44 g remains. What is the empirical forumla for rust?
asked on November 15, 2009 
Movement and Music
Can you please check my semester exam before I turn it in? 1. Children who do poorly in school are primarily ______ learners. a. Auditory b. Kinesthetic c. Spatial d. visual My answer: c 2. A movement program that emphasized divergent problem solving,
asked on February 7, 2013 
and more math. :)
Given (1/logy 4) = (log1/4 1/8x), express y as a polynomial function of x. State the restrictions on x and y.
asked on December 14, 2009 
algebra
The maximum speed allowed on Main St is 25mph Define a variable & write and inequality. Also graph the solution.
asked on November 5, 2017 
Chemistry help
1) How do I calculate what the mass would be for the flask containing water and alkaseltzer if: mass of flask and the 10ml of water equals 150.23g mass of alkaselzer equals 0.65g Calculate the mass of the carbon dioxide gas if: mass of flask , water ,
asked on September 11, 2012 
Math 12
In a geometric series S4 = 64 and r = 2/3. The first term in the sequence is? Thanks for your help!
asked on January 7, 2010 
college algebra
find the xintercept and the yintercept for f(x)=16x^+24x+9 type in ordered pair
asked on August 1, 2010 
college algebra
The number of tickets sold each day for an upcoming performance of Handel's Messiah is given by N(x)=0.4x^2+12x+10, where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold
asked on July 31, 2010 
college
Hint: Pay attention to the units of measure. You may have to convert from feet to miles several times in this assignment. You can use 1 mile = 5,280 feet for your conversions. 1. Many people know that the weight of an object varies on different planets,
asked on July 15, 2010 
biology
What would happen to your cells if they made a poisonous chemical?
asked on January 4, 2010 
MATH  logarithms
solve for x. 485 * 5^x+2 = 12^2x1
asked on December 3, 2009 
statistics
this is a problem in my statistics class, and I am lost to me, it is confusing or missing something here is the problem please help grade points are assignede as follows: a=4,b=3,c=2,d=1,f=0. grades are weighted according to credit hours. if a student
asked on February 10, 2013 
statistics
Twenty (20) students randomly assigned to an experimental group are studying for a test while listening to classical music. Thirty (30) students randomly assigned to a Control group are studying for the same test in complete silence. Both groups take the
asked on May 3, 2011 
math
To train for a triathlon Cartman swims 125m daily for one week.Each subsequent week he doubles the daily amount until he swims 4km each day for one week. The total distance he has swam is? What is the equation for this,since he doubles every week
asked on January 9, 2010 
MATH
Solve: (log2 8)^x  (log9 3)^x+1 = 0
asked on December 13, 2009 
science  biology
If our cells and body fluids are hypertonic to the water of a swimming pool, then why do we not swell and pop when we go for a swim?
asked on December 2, 2009 
Movement & Music
Children who do poorly in school are primarily ________ learners. a. auditory b. kinesthetic c. spatial d. visual I think C is correct..
asked on January 31, 2013 
Math
(√ 10 +3)(√ 10  3) When I multiply the √ 10's what would it come out to be? That's what throws me off >_
asked on May 7, 2012 
math
A supersoaker water pistol can hold up to 4 litres of water. If each shot uses 11/12 of amount of water of its previous shot, the amount of water fired by a fully loaded supersoaker's first shot is? x/4000ml=11/12 x=3666.7mL why is the answer 333mL?
asked on January 9, 2010 
math againnn!
Solve for x: 2log(3x) = log2 + log(222x)
asked on December 13, 2009 
math
Given the !@#$%^&tion y = log3(x+3)+2, calculate the zero of the function. GIve an exact answer.
asked on December 12, 2009 
Movement & Music
A movemnt program that emphasizes divergent prolem solving, discovery, and selfexpression to foster creativity utilizes the _______ teaching method. a. command instruction b. direct instruction c. exploration d. guided discovery I chose D...
asked on January 31, 2013 
statistics
entify the data set's level of measurement. gender profile of the 111th congress average january snowfall for 15 cities
asked on January 30, 2013 
English
How would you make this sentence into a parrell sentence. One gypsy explained that telling fortunes was less about helping others' lives than to make his own living.
asked on September 12, 2010 
math
Determine the inverse of f(x)=(x^3)2 Is the inverse the switch of coordinates between x and y or is it 1 over the whole equation?
asked on January 9, 2010 
MATH!
determine all the values of x, such that (x^215)^x^24 = 1.
asked on December 10, 2009 
math  logs
if logx3 = a and logx25 = b, determine an expression for logx(9/5).
asked on December 10, 2009 
math
An amount of money is invested at 12%/a interest. Write an equation and solve it to determine the length of time it will take for the original amouunt to double if the interest is compounded annually.
asked on December 3, 2009 
Physics
When an object slides over a smooth horizontal surface, how does the force of friction depend on the force of gravity on the object?
asked on November 17, 2009 
geometry
The sum of the diameter of 2 circles is 28". Once circle has a diameter that is 8" longer. What are the diameters of each circle?
asked on June 2, 2014 
Alg2
Find the value of c that will make the expression x^215x+c a perfect square. would c = 56.25 ?
asked on May 7, 2012 
college math
(24b^3+16b^2+24b+39)/(4b+4)
asked on August 5, 2010 
bio
Why do enzymatic reactions proceed slowly at 0°C?
asked on January 8, 2010 
Math
Solve. 3w1 = 3w or abs(3w1)  abs(3w) I know you can use a calculator and find the answer easily, but we're supposed to know how to do this without a calculator.
asked on March 5, 2009 
Finance
If our company's bank loan has a 12 interest rate, what is our effective, aftertax interest cost? Assume the tax rate = 38% If our preferred stock is paying a contractual $1.85 annual dividend and has current market price of $13.50, what is our cost of
asked on July 17, 2007 
finance
If our company's bank loan has a 12 interest rate, what is our effective, aftertax interest cost? Assume the tax rate = 38% If our preferred stock is paying a contractual $1.85 annual dividend and has current market price of $13.50, what is our cost of
asked on July 17, 2007 
calculus
integrate 2/((2x7)^2) from x=4 to 6
asked on June 24, 2011 
math
solve: log base2(log basex(x+6)=1 There's 2 different bases, how do I solve for x?
asked on January 9, 2010 
Physics
Another one, sorry! =P This stuff is really confusing.. Why doesn't friction depend on surface area?
asked on November 17, 2009

health
Joe Reseacher asks for access to patient records as part of a research project.What should the health information manager do?
posted on May 8, 2011 
college
What formula do I need to use to solve for r
posted on July 15, 2010 
MATH
zero
posted on February 4, 2010 
MATH
^(x+1) my bad =]
posted on December 13, 2009 
MATH  logarithms
is ln the same as log? and is its ln485 + or ln485 * ?
posted on December 3, 2009 
Functions
a) 3(2)^2  8(2) = 6^2  16 = 3616 = 20 b) 3(3)^28(3) = 9^2  (24) = 81 + 24 = 105
posted on November 17, 2009 
math
if you're trying to solve for b, isolate b. b = 5*8 b = 40
posted on November 17, 2009 
Chemistry
OH, i understand now, 7.77 is the combination of iron and oxygen.. whereas 5.44 is just iron, so therefore to find the mass of the oxygen, you minus the two.. thank you so much!
posted on November 15, 2009 
Chemistry
Thank you! I don't get one part though, to find the mass of the oxygen, why did you minus 5.44 and 7.77?
posted on November 15, 2009 
Algebra
the answer should be 8/7 when you are dividing expressions with exponents of the same letter, you just subtract the exponents so 3  3 = 0, therefore there would be no more t. so 16/14 simplifies to 8/7
posted on March 5, 2009 
Math
after you get 3x(x^22x8), look at what is in the parenthesis. x^22x8 what are 2 numbers that add to the constant, 8? at the same time, these 2 numbers must equal 2 the two numbers should be 4 and 2 so the final answer would be.. 3x(x4)(x+2) hope
posted on March 5, 2009 
Grade 8 science
I remember in grade 8, we studied cells and we examined cork under a microscope. Corks contain cells, but is a nonliving object.
posted on March 5, 2009