At the 2004 Olympic Games in Athens, Greece, the Iranian athlete Hossein Rezazadeh won the super-heavyweight class gold medal in weightlifting. He lifted $472.5 \mathrm{~kg}$ (1042 lb) combined in his two best lifts in the competition. Assuming that he lifted the weights a height of $196.7 \mathrm{~cm}$, what work did he do?

Divide the expression.

$$\frac{2 x^4-3 x^2+4 x-7}{-4 x}$$

Describe the components of the coffee-cup calorimeter.

Divide. Write fractions in simplest form. 10. 32.436 ÷ (- 4.24)

The numbers in the pebble pattern shown below are called the rectangular numbers.

Figure 1:

$$\tiny{\begin{array}{ccccccc} &&&&\bullet\\ &&&&\bullet\\ \end{array}}$$

Figure 2:

$$\tiny{\begin{array}{ccccccc} &&&&&\bullet&\bullet \\ &&&&&\bullet&\bullet\\ &&&&&\bullet&\bullet\\ \end{array}}$$

Figure 3:

$$\tiny{\begin{array}{ccccccc} &&&&&\bullet&\bullet&\bullet \\ &&&&&\bullet&\bullet&\bullet \\ &&&&&\bullet&\bullet&\bullet \\ &&&&&\bullet&\bullet&\bullet \\ \end{array}}$$

Describe how to find the number of pebbles in the 10th figure.

Identifica la palabra que no está relacionada con cada grupo. 1. champiñón $\bullet$ cebolla $\bullet$ banana $\bullet$ zanahoria 2. camarones $\bullet$ ajo $\bullet$ atún $\bullet$ salmón 3. aceite $\bullet$ leche $\bullet$ refresco $\bullet$ agua mineral 4. jamón $\bullet$ chuleta de cerdo $\bullet$ vinagre $\bullet$ carne de res 5. cerveza $\bullet$ lechuga $\bullet$ arvejas $\bullet$ frijoles 6. carne $\bullet$ pescado $\bullet$ mariscos $\bullet$ camarero 7. pollo $\bullet$ naranja $\bullet$ limón $\bullet$ melocotón 8. maíz $\bullet$ queso $\bullet$ tomate $\bullet$ champiñón

Sometimes a derivative contains negative exponents, and simplification requires that all exponents be positive. Write the expression without negative exponents.

$$f^{\prime}(x)=-6 x^{-4}+4 x^{-2}+x^{-1}$$

Use the table below and Apple's financial statements in Appendix A to answer the following.

1. Compute times interest earned for each of the three years shown.

2. Is Apple in a good or bad position to pay interest obligations? Assume an industry average of 10.

3. Identify Apple's total accrued expenses in 2017.

Ted has 18 feet of lumber. How many 2 1/2 - foot shelves can he make? Explain your answer.

Simplify each expression. Write your answers without negative exponents. Whenever an exponent is negative or zero, assume that the base is not zero. $\frac { x ^ { 2 } y ^ { - 2 } } { x ^ { - 1 } y ^ { 2 } }$

The components of $n=\langle 500,330\rangle$ represent the number of $T$-shirts and hats, respectively, in the inventory of a surf shop. The components of $p=\langle 15,9\rangle$ represent the price (in $) per T-shirt and hat, respectively. Find$n \cdot p$ and interpret the result.

Explain why log x is negative if 0<x<1.

Use inequality and the five-step process to solve the problem.

In the last weeks before the yearly Topsfield Weigh-In, heavyweight pumpkins gain about $26 \mathrm{lb}$ per day. Charlotte's heaviest pumpkin weighs $532 \mathrm{lb}$ on September 5. For what dates will its weight exceed $818 \mathrm{lb}$ ?

Use the context of each sentence to help you determine the meaning of the boldface words. The $\mathbf{prostrate}$ subjects cringed before their harsh king.