Monday
December 22, 2014

Posts by Rox


Total # Posts: 18

math
A can of soda at 80°F is placed in a refrigerator that maintains a constant temperature of 37°F. The temperature T of the soda t minutes after it is placed in the refrigerator is given by T(t) = 37 + 43e−0.058t.
February 25, 2014

Science
hardy weinberg problem
April 7, 2013

Science
Phenylketonuria (PKU) is a human metabolic disease caused by the recessive allele k. If 2 heterozygous carriers of the allele marry and plan a family of five children: a) what is the chance that all their children will be unaffected? b) what is the chance that four children ...
April 7, 2013

maths
The lines x=4y−a and y=4x−b intersect at the point (1,2). What is a+b?
February 27, 2013

maths
Three circles, each with a radius of 10, are mutually tangent to each other. The area enclosed by the three circles can be written as a√b−cπ, where a, b and c are positive integers, and b is not divisible by a square of a prime. What is the value of a+b+c?
February 13, 2013

maths
It is given that sin(θ)=1/√15. In addition, a and b are coprime positive integers such that cos(2θ)=a/b. What is the value of a+b?
February 13, 2013

maths
How many positive integers N are there such that the least common multiple of N and 1000 is 1000?
February 13, 2013

maths
A group of friends are planning a road trip. If they all contributed $24, then they would be $6 short of the total. If they all contributed $25, then they would have $3 more than needed. What is the total cost of the trip?
February 13, 2013

maths
The variables x and y satisfy the equations 2/x−24/y=−1 and 6/x+33/y=2. Find the product xy.
February 13, 2013

Math
If it costs $75 to install 40 feet of fencing, how much does it cost to fence a rectangular garden that measures 12 feet by 16 feet?
September 24, 2012

calculus
find the integral: ∫tan^6 (x) dx
June 24, 2012

calculus
∫ sin(x)sin(3x)dx find the integral
June 14, 2012

calculus
Find Mx, My, and (x, y) for the laminas of uniform density ρ bounded by the graphs of the equations. (Use rho for ρ as necessary.) y =1/5 y = 0 x = 4
January 26, 2012

Math
Please help solve 2a²+5a+3
September 22, 2010

Math
2a²+5a+3
September 21, 2010

chemistry
the molarity of ferric ion in a .060 M solution of Fe2(SO4)3 is?
February 18, 2010

volcabulary
One who prefers solitude to companionship is an A> ascetic B> introvert i think a
August 29, 2009

chemistry
Write the balanced chemical reaction for the rusting of iron? the acidic vinegar dissolved a protective coating off the steel wool, allowing the oxidation of the steel to begin. This process is called rusting. In this reaction, iron(III) is combined with oxygen gas to form ...
April 23, 2007

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