Chapter 7: Problem 9
Simplify each of the following as completely as possible. $$2^{3} 3^{4}$$
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Chapter 7: Problem 9
Simplify each of the following as completely as possible. $$2^{3} 3^{4}$$
These are the key concepts you need to understand to accurately answer the question.
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Convert each number into standard notation. $$6.81 \times 10^{-2}$$
A certain sum of money is invested at \(10 \%,\) and twice that amount is invested at \(12 \% .\) If the annual interest from the two investments is \(\$ 408,\) how much is invested at each rate?
Multiply out \((x+6)(x+4)\) and \((x-6)(x-4) .\) What is the effect of switching both \(+\) signs to \(-\) signs?
Estimate the answer without actually carrying out the computation and make the most appropriate choice. If you multiply \(1.36 \times 10^{8}\) by \(1.18 \times 10^{-4},\) the result is closest to (a) 100 (b) 1000 (c) \(10,000\) (d) 0.001 (e) 0.0001
Suppose that the price \(p\) of a given item is related to the number of items sold \(x\) by the equation \(p=50-0.004 x\). The revenue \(R\) is computed by multiplying the price per item \(p\) by the number of items \(x\). Thus, \(R=x(50-0.004 x)\). Find the increase in revenue if \(x\) is increased by 500 .
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