05/27/15

Curve=arc of a circle with a radius of 1260ft. The central angle that intercepts the curve measures pi/6 radians. To the nearest foot, length of the curve?
Using arc length formula (s=r*Θ), it is to my understanding the problem would become [s=1260*(π/6)] with 1260 as the radius and (π/6) as the central angle/theta. Simplified out this should come to... more
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05/27/15

Find the sum of the infinite geometric series if it has a sum
∑8   12 (1/3)^ n-1 n=1
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05/26/15

True or false an elastic collision is one where neither of the two colliding particles lose some of their kinetic energy
True or false an elastic collision is one where neither of the two colliding particles lose some of their kinetic energy
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05/24/15

In basketball, Michael makes 1 out of every 5 free throws he attempts. What is the probability that micheal will make is next 3 free throws?
I don't know how yo answer it i need help    
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05/22/15

when i divide 6530347008 by 1/12 i get a really big number with E in the question
6530347008 is the_________ term of the geometric sequence 1/12, -1/2, 3...
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05/20/15

How do i balance this equation? C8H18 +O2 -> CO2 + H2O
then you have to calculate mass of CO2 produced when 100g octain undergoes combustion.
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05/20/15

SAT PREP 2015
Twice the sum of two consecutive integers is 10 less than 5 times the smaller integer. Find the greater integer.
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Sat

05/20/15

SAT PREP 2015
If n & k are positive integers and 8^n =2^k, what is the value of *n/k?     * (written as n over k like a fraction)
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05/20/15

Find a fraction with greater than five but less than 10 digits in the repeating part of its decimal. Write the fraction and its equivalent decimal expansion.
 this is hard
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05/19/15

The domain of the function f(x) = 3x3 is {2, 5}. What is the function’s range?
The domain of the function f(x) = 3x3 is {2, 5}. What is the function’s range?
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05/19/15

three people A,B,C set out to try to solve a puzzle
From past experience it is thought that the probability of A solving it is 1/2 B solving it is 1/4 and C solving is 1/3. What is the probability that the puzzle will be solved.
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05/18/15

What makes magnetic fields?
i need to know the answer to this question its for a physics benchmark and the answer doesn't have to be very detailed   
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05/18/15

How much heat is involved in converting 456g of H2O(g) at 127 degree C and to H2O(l) at 40 degree C.
Specific heat of H2O(g) = 1.90J/g degree C and H2O(l) = 4.18J/g degree C. ΔH fus: 334J/g. ΔHvap: 2.26kJ/g.
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05/18/15

for function f (x) =x2-5x find each of the following a. f(-2), b. f(1), c. f(-1), d.f(2), e. f(10)
I would like to see the steps I am lost on this one
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05/18/15

What's the formula for the nth term of a arithmetic sequence if a4=-10 and a10=-25
I need to know how to do it
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05/17/15

360 degrees <theta< 450 degrees and tan theta= 1/7. Find in simplest radical form the functional value of cot(theta)
360 degrees <theta< 450 degrees and tan theta= 1/7. Find in simplest radical form the functional value of cot(theta)
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05/17/15

give 3 consecutive integers-twice the third integer is the same as the second integer increased by 21. what are the integers?
write an equation and solve.
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05/17/15

What is the theme of each stanza in the song "Only a Pawn in Their Game" by Bob Dlyan
The questions has to be the theme of all five stanza and there needs to be some evidence to back up your claim.  Here is an outline that might help you out.   Staza 1Evidence Stanza 2Evidence... more
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05/15/15

For the given set, first calculate the number of subsets for the set, then calculate the number of proper subsets. (0,19,13,4)
For the given set, first calculate the number of subsets for the set, then calculate the number of proper subsets.  (0,19,13,4)
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05/14/15

Geometry word problem about circles, tangents, and triangles.
You have a circle and 2 tangents to the circle, AB and CB, with A and C being the points on the circle and B being the point where the 2 tangents intersect. AB and CB equal 16cm. D is any point on... more
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05/14/15

what is the domain of 1-x^2/x and what are the steps
I need to know the domain and the steps involved in finding the domain for the expression 1-x^2/x
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05/14/15

Find the area of a square if its perimeter is 40m.
Find the area of a square if its perimeter is 40m.
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05/14/15

what is y+2=7/8(x-3) in standard form
 this ismy math problem that i need alot of help  with because i dont understand it
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05/13/15

Three numbers in pairs produce the Highest common factors of A million and four, A million and six and A milliion and 8, but this is not possible. why?
Three positive integers are written on a whiteboard. David calculated the highest common factor of two of them and obtained 1000004. Rose and Stephen did the same obtaining 1000006 and 1000008... more
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05/12/15

Partial derivatives help
I'm having problems finding the following: say F = -kTN*ln(2*cosh(βμB)) where everything is a constant and β=(1/kT) I want to find S = -(∂F/∂T) and the answer should be S = kN[ln(2*cosh(βμB)) -... more
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