Zignd
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### Questions (7)

 2 How to evaluate a $A_{x\times y}B_{y\times z}$ where $A$ and $B$ are matrices, $x\neq z$ 0 How do I algebraically express that I'm using the integer part of a real number? 0 How can I evaluate this exponential equation with natural logarithm $6161.859 = 22000\cdot(1.025^n-1)$? 0 $1500=P \times { (1 + 0.02) }^{ 24 }$, what is the value of $P$? -1 If U contains A and B, and X is 80% of A, how much % is X in U?

### Reputation (117)

 +10 How to evaluate a $A_{x\times y}B_{y\times z}$ where $A$ and $B$ are matrices, $x\neq z$ -2 If U contains A and B, and X is 80% of A, how much % is X in U? -2 If U contains A and B, and X is 80% of A, how much percents is X in U? -2 In relational algebra, what would be the result of $(R-S)\cup (S-R)?$

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### Tags (8)

 0 linear-algebra × 2 0 logarithms 0 elementary-set-theory × 2 0 finance 0 exponential-function 0 matrices 0 relation-algebra 0 exponentiation

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