Wednesday

July 23, 2014

July 23, 2014

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.

**Science**

hardy weinberg problem

**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 wi...

**maths**

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

**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?

**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?

**maths**

How many positive integers N are there such that the least common multiple of N and 1000 is 1000?

**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?

**maths**

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

**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?

**calculus**

find the integral: ∫tan^6 (x) dx

**calculus**

∫ sin(x)sin(3x)dx find the integral

**calculus**

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

**Math**

Please help solve 2a²+5a+3

**Math**

2a²+5a+3

**chemistry**

the molarity of ferric ion in a .060 M solution of Fe2(SO4)3 is?

**volcabulary**

One who prefers solitude to companionship is an A> ascetic B> introvert i think a

**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 iro...

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