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Solve by completing the square: x^2+8x+3=0
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$5900 is invested, part of it at 10% and part of it at 9%. How much is invested at each rate to yield $562
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need math olympiad training
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If one pen costs dollars, what is the cost, in dollars, of pens?
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How do you divide 538000 by 0.19
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A POLL SHOWED THAT 61% OF AMERICANS SAY THEY BELIEVE THAT LIFE EXISTS ELSEWHERE IN THE GALAXY. WHAT IS THE PROBABILITY OF RANDOMLY SELECTING SOMEONE NOT HAVING THAT BELIEVE?
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192 meals is what percent of 960 meals?
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What are the answers for numbers.. 7 and 8
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A rancher has 20000 linear feet of fencing and wants to enclose a rectangular field and then divide it into four equal pastures with three internal fences parallel to one of the rectangular sides. What is the maximum area of each pasture?
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A surveyor wants to measure the distance across a lake from point A to point B. He selects a third point, C, which is 4 miles from point A and 5 miles from point B. He then measures the angle ACB to be 80o. Find the distance from A to B, rounded to the nearest tenth of a mile
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- 1. I’m having problems with my math. Can you help me? All I need is an example just to make sure I'm on track.
- Solve the following
- a) 3/(n+1)-1/(n+1)=14/(n^2-1)
- b) 1/(y-1 )+y/(1-y)
- c)4/(x-5)-3/(x+2)=28/(x^2-3x-10)
- d) (x-2)/(8x-24)*(5x-15)/(x^2 -4)
- e) z/(z-1)+1/2=3/z
- f) (x-3)/(x^2+2x-15)-(4-x)/(x^2-9x+20)
- 2. How do I set up this problem? An exam contains five "true or false" questions. How many of the 32 different ways of answering these questions contain 3 or more incorrect answers?
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