Earth is gravitationally attracted to a. Mercury. b. the moon. c. the sun. d. All of the above

Perform the indicated operation. $\text { (a) } \frac{2}{3}\left(6-\frac{3}{2}\right) \quad \text { (b) }\left(3+\frac{1}{4}\right)\left(1-\frac{4}{5}\right)$

Compare family service with plate service when serving meals.

Use f(x) = 2x - 3 and $g(x)=4-x^{2}$ to evaluate the expression. $(f \circ f)(-1)$

Which pricing system could be modeled by a discrete function? Select all solutions. Explain your choice(s). A. An ice cream shop sells any amount of ice cream for $0.95 per ounce. B. An ice cream shop sells ice cream and toppings for$5.00 per cup. C. An ice cream shop sells tee cream for $1.20 per ounce and toppings for$0 55 per ounce D. none of these

State the property of real numbers being used.

Perform the indicated operations and simplify. $\left(x^{2}-a^{2}\right)\left(x^{2}+a^{2}\right)$

Consider a power plant that uses natural gas as a fuel to generate electricity. If there are 10,000 J of chemical energy contained in a specified amount of natural gas, then the amount of electricity that could be produced would be (a) greater than 10,000 J because electricity has a higher energy quality than natural gas. (b) something less than 10,000 J, depending on the efficiency of the generator. (c) greater than 10,000 J when energy demands are highest; less than 10,000 J when energy demands are lowest. (d) greater than 10,000 J because of the positive feedback loop of waste heat. (e) equal to 10,000 J because energy cannot be created or destroyed.

Find the values of the trigonometric functions. Round off results. tan 8.653 degrees

Graph, showing the foci and stating the equations for the asymptotes. $4 x^{2}-16 y^{2}=1$

Identify at least three ways in which fossil fuels can damage human health.

Suppose that a company has just purchased a new computer for $3000. The company chooses to depreciate the computer using the straight-line method over 3 years. Write a linear model that expresses the book value V of the computer as a function of its age x.

Explain why you would expect to find more evidence of diatoms than green algae in a sample of ocean floor sediment.

Why is groundwater pollution so hard to clean up?