10/23/13

Determine whether the following series is an absolute convergence, conditional convergence, or divergent and by what test:
Determine whether the following series is an absolute convergence, conditional convergence, or divergent and by what test: ∑ 1,∞  ((-1)^n (n+1)^2/n^5 +1
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10/23/13

Apply the ratio test and state its conclusion:
Apply the ratio test and state its conclusion: ∑ n=1, ∞ (n)^100/(100)^n XApply the ratio test and state its conclusion:
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10/22/13

Find two vectors?
Find two vectors v and w that are perpendicular to (1, 0, 1) and to each other.  
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10/22/13

Find the angle?
Find the angle θ (from its cosine) between v=[2, 2, -1] and w=[2, -1, 2].   These are vectors with 2 on top, 2 on middle, -1 on bottom. And w with 2 on top, -1 on middle, 2 on bottom. I got the... more
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10/22/13

A 1200 kg car going 30 m/s skids to a rest.
The friction force is 6000 N. How far does it skid?
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10/22/13

Physics help.
What force is needed to accelerate a 1300 kg car from rest to 20 m/s in 80 m?
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10/22/13

A car is moving at 100 km/hr.
its mass is 950 kg. find it's ke.
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10/22/13

Financial Calculations
Please step by step instructions. Solve the problem.The half-life of silicon-32 is 710 years. If 100 grams is present now, how much will be present in 600 years? (Round your answer to three... more
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10/22/13

lines a(1) and a(2 in two-dimensional space intersect at a point, forming an acute angle A
lines a(1) and a(2 in two-dimensional space intersect at a point, forming an acute angle A. the slope of a(1) is square root of 5 , and cos A= 2/9. What is the slope of a(2)? There are two answers,... more
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10/22/13

Basic Comparison Test and Limit comparison test.
What is the conclusion of the BCT and LCT when applied to: ∑ ∞, n=1  1/(3√(n2) + 9)   equation reads: summation of 1 goes to infinity.... one divided by cubed root of n squared plus nine. X   dd
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10/22/13

Converge/Diverge?
If the integral test applies, use it to determine whether the series converges or diverges.  ∑ 1, ∞   (ln(n))2/n
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10/21/13

How fast would a 15 kg box accelerate?
How fast would a 15 kg box accelerate down a 25º snowy slope if the coefficient of kinetic friction were 0.15?
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10/21/13

What is minimum amount?
A sled of mass 40 kg is pulled along flat, snow-covered ground. The static friction coefficient is 0.28, and the kinetic friction coefficient is 0.0800. What is minimum amount of force needed to... more
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10/21/13

Find the acceleration?
A 10 kg box is resting on a smooth (frictionless) horizontal surface of a table. You pull the box by the attached ribbon with a force of 40 N at a 30 degrees angle from the surface of the table.... more
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10/21/13

Find the angle?
Find the angle theta (from its cosine) between v=[1, sqrt(3)] and w=[1, 0].   These are vectors with 1 on top, sqrt(3) on bottom. And 1 on top, 0 on bottom for w. But how do I find the angle?... more
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10/21/13

Evaluate lim 1/x - log(1 +x)/x2
Evaluate lim   〈   1 - log(1 + x)〉                   x→0         x         x2
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10/21/13

Prove that 1 + sin b - cos b =2sin1/2b cos1/2b +sin1/2b
Prove that 1 +sin b -cos b=2sin 1 b cos 1 b +sin 1 b                                               2          2           2   and hence solve 1 +sin b -cos b =0  0 = <b=<2¶
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10/20/13

Compute v and w?
If v+w=[5, 1] and v-w=[1, 5], compute v and w.   This is vectors, 5 on top, 1 on bottom. And 1 on top, 5 on bottom.
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10/20/13

Determine whether the following series is an absolute convergence, conditional convergence, or divergent
Determine whether the following series is an absolute convergence, conditional convergence, or divergent and by what test: ∑,∞,n=1  ((-1)nln(n))/(2.5)n
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10/20/13

Ratio Test
What is the conclusion of the ratio test when applied to Σ,∞,n=1  (n!)^2/(3n)!
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10/20/13

solve the equation log2 x + logx 2 =2.5
solve equation log2x + logx2=2.5
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10/20/13

copper sulfate lab substitute
hi, i had to do a lab and make copper sulfate from a piece of solid copper metal and sulfur powder. I am allergic to sulfur and could not do the lab and am trying to find a substitute for sulfur X
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10/20/13

Probability- Decision making
There is a 0.25 probability that the temperature will drop below freezing, and Best Orange Company has to decide on whether or not to fire up its smudge pots to protect its $9500 crop investment.... more
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10/20/13

Decision making
Which of the following 3 games of chance should you play? 1. Draw a card from a standard deck. If it is an ace, you win $5; if it is red, you win $1 ( a red ace wins $6); anything else, you lose... more
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10/20/13

Ticket probability
You pay $1 for one of 1000 tickets at a fair. 4 numbers are drawn. The holder of the first number drawn will win $500, the holders of the remaining 3 numbers will each receive $100. What are your... more
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