03/25/14

how to show that (x + y)^-2 and x^-2 + y^2 are not equivalent
  I would think they are not equivalent because part of the equation is in paranthesis.  Is this correct?
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03/25/14

Determine whether f(x) is continuous everywhere throughout its domain.
Is f(x)= -100x + 600 if 0 ≤ x < 5            -100x + 1100 if 5 ≤ x < 10            -100x +1600 if 10 ≤ x < 15 Determine whether f(x) is continuous everywhere throughout its domain.
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03/25/14

Find the formula for the general term
For each sequence, find a formula for the general term, An 1. {(3/16),(4/25),(5/36),(6/49),...} 2. {(1,2),(1/4),(1/8),(1/16),...}
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03/21/14

write the sum using sigma notation
Write the sum using sigma notation: 1+2+3+4+.....+105=ΣB n=1 A= B=
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03/21/14

Scientific Notation
A company produces 4.56 x 10 to the 3rd pwer light bulbs each week. Written in scientific notatio, which is the best estimate of how many light bulbs the company will make in 9.36 x 10 to the 2nd... more
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03/20/14

use quadratic formula to solve the equation
(2/7x∧2) -(3/14x) =3/7
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03/20/14

find the appropriate solution
8.5p∧2-2.68p=8.65
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03/20/14

perform the operation and leave the result in trigonometric.
1). 4(cos40° + isin40°)/3(cos160°+isin160°)     2).[2/3(cosπ/3+isinπ/3)][9(cosπ/6+isinπ/6])]
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03/19/14

algebraic word problem
finnd three consecutive off positive integers such that two times the sum off all three integers is sixty five less than the product of the first and second integers
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03/18/14

How much distance?
A particle starting at rest at t=0 moves along a line so that its acceleration at time t is 12t ft/sec^2. How much distance does the particle cover during the first 3 sec?    Answer: 54... more
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03/16/14

CAN SOMEONE PLEASE CHECK MY ENGLISH ANSWERS PLEASE?
    Read the sentence and answer the question below: If we are in agreement, then I think we have consensus and can move forward on this decision.   Which word provides the best clue to the... more
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03/16/14

given f(x)=2x-5, construct a function g such that g(f(x))=x
 another question: Given f(x)=2x-5, construct a function g such that g(f(g(5)))=3
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02/28/14

converting kilometers to miles
1. The straight line distance is between Portland, Oregon and Alice Springs, Austrailia is approximately 12, 902 kilometers.  How far is it in miles?  (show work)     2.  What might you measure... more
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02/28/14

How long is it?
One ladder is 7 feet longer than another. Each is placed on level ground with its lower end 8 feet from the foot of a vertical wall. The longer ladder reaches 9 feet farther up the wall. How long... more
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02/24/14

Find the smallest value?
Find the smallest value of θ in the interval [0, 2pi] for which the rose r=2 cos (5θ) passes through the origin.   Answer: pi/10   Show your work.
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02/24/14

Which equation includes?
Which equation includes the curve defined parametrically by x(t)=cos^2 (t) and y(t)=2 sin(t)?   a) x^2+y^2=4   b) x^2+y^2=1   c) 4x^2+y^2=4   d) 4x+y^2=4   e) x+4y^2=1   Answer:... more
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02/24/14

Losing Weight Challenge
1. Reuben was successful in losing weight. He had a goal weight in mind. He went on a diet for three months. Each month, he would lose one-third of the difference between his current weight and his... more
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02/16/14

For all sets A, B, and C. Assuming each is a subset of a universal set U
For all sets A, B, and C. Assuming each is a subset of a universal set Ua)Is the following true? (A-B)∩ (C-B) = A- (B ∪C) b)Find a counterstatement to (a)
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02/15/14

what is the equation of the line that passes through the points (0,3) (2,0)?
what is the equation  of the line that passes through the points (0,3) (2,0)?
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02/15/14

complex numbers
The Number System is built in stages to facilitate the four basic operations. It is extended to complex numbers to facilitate the computation of square roots of negative real numbers. All you need... more
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02/11/14

word problem.
i am a number less than 3000. when u divide me by 32, my remainder is 30 and when you divide me by 58, my remainder is 44? how do i solve?
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02/09/14

Find all the asymptotes and the intercepts
f(x)= (6x-6)(x+3)/(-6x-2)(3x-6) what are the vertical asymptotes? what are the horizontal asymptotes? what are the x-intercepts? what are the y-intercepts?  
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02/03/14

Multi step problem solving
Myra has some oranges to share among 3 friends. Jennifer gets half and 3 more. Angela gets half the remainder and 3 more. Josie gets half the remainder plus 3. Myra has 10 oranges left. How many... more
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02/01/14

The following formula is incorrect for compound interest with the symbols defined this way, can someone tell me why?
The following formula is incorrect for compound interest with the symbols defined this way, can someone tell me why?     Compound Interest is described by A = P(1+rm)^n, where P is the... more
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01/19/14

investment
you are offered $900 five years from now or $150 at the end of each year for the next five years.  If you can earn 6 percent on your funds, which offer will you accept?  If you can earn 14 percent... more
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