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maths~~~~~~~~~?
¿Cúal de la siguientes ecuaciones es equivalente a la ecuación lineal 2x−y−z+3t=7?
2x−y+3t=7.
4x−2y−2z+6t=7.
2x−y+3t−7=z.
2x−y+3t=7−z.
1 個解答數學3 年前http://i63.tinypic.com/5p4m6c.jpg?
1 個解答數學5 年前http://i67.tinypic.com/v7gj9v.jpg?
1 個解答數學5 年前math-normal distribution
A set of concrete cubes with the random strengh variable X~N(39,42),find the probability of strength X between 30mPa and 42mPa.
1 個解答數學9 年前maths!!!!!!!!!!!!
Determine the monthly repayments needed torepay a $200000 loan which is paid back over 25 years when the interest rate is5% compounded annually.
1 個解答數學10 年前Mathematics
If the letters of the word PROBABILITY are arranged at random,find the number if arrangements that the two B's are separated.
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A project requiring aninitial outlay of $15 000 is guaranteed to produce a return of $20 000 in three years’ time. Use the a) net present valueb)internal rate of return methods to decide whether this investmentis worthwhile if the prevailing market rate is 5% compounded annually. Wouldyour decision be affected if the interest rate was 12%?
1 個解答數學10 年前
