Three boys stood on a scale and put a nickel in the slot. The scale showed 390 pounds as their total weight. One boy stepped off the scale. It then showed 255 pounds. The second boy stepped off the...

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Three boys stood on a scale and put a nickel in the slot. The scale showed 390 pounds as their total weight. One boy stepped off the scale. It then showed 255 pounds. The second boy stepped off the...

f(x)=x+1 / x-1 x2≠1 f-1(1/x)?

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a = (m-6, n, 6) b = (2n, p+2m, m-2n) a paralel b |b|=5|a| what is p ?

I have never been good with word problems. This one has me stumped.

1) Perform the indicated operations and write your answer using Euler’s Formula. Round your solution to three decimal places. (2+ j)(−1−j)3 (√3+ j)2 2) Perform the indicated operation...

x-2y=3 2x-3y=9

A chemical company makes two brands of antifreeze. The first brand is 45% pure antifreeze and the second brand is 70% pure antifreeze. In order to obtain 150 gallons of a mixture that contains 55%...

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trignometry question

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The standard weight of a special purpose brick is 5Kg & it contains 2 basic ingredients B1 and B2. B1 costs Rs.5 per kg and B2 costs Rs. 8 per kg. Strength consideration dictates that the brick...

We know 0!=1 & 1!=1 . So 0!=1!, Here its seen that The value of 0 & 1 is Same. But this is Wrong. There must be difference between the Value of 0 & 1. There what value do they...

a metal alloy weighing 1 oz and containing 80% nickel is melted and mixed with 3 oz of pure nickel. what percent of the r

a metal alloy weighing 1 oz and containing 80% nickel is melted and mixed with 3 oz of pure nickel. what percent of the r

statistics question plz help me solve i dont understand and plz explain in steps

what does her total weekly sales have to be

An object fall from planet x with a=4,9 m/s2. The radius of planet X is 0,8 times earth radius. Find the mass of planet X compare to earth.

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