How are computers used in pavement management?

Use transformations of the graph of $y = \frac { 1 } { x }$ or $y = \frac { 1 } { x ^ { 2 } }$ to graph each rational function f(x). $f ( x ) = \frac { 3 x ^ { 2 } + 18 x + 28 } { x ^ { 2 } + 6 x + 9 }$

An element has two naturally occurring isotopes. The isotope has a mass of 62.9396 amu and a relative abundance of 69.17 %, and isotope 2 has a mass of 64.9278 amu.

Find the atomic mass of this element.

Washington County’s Board of Representatives is considering the construction of a longer runway at the county airport. Currently, the airport can handle only private aircraft and small commuter jets. A new, long runway would enable the airport to handle the midsize jets used on many domestic flights. Data pertinent to the board’s decision appear below.

$$\begin{array}{lr} \text{Cost of acquiring additional land for runway } &\$\hspace{5pt} 70,000\\ \text{Cost of runway construction} &200,000\\ \text{Cost of extending perimeter fence} & 29,840\\ \text{Cost of runway lights} &39,600\\ \text{Annual cost of maintaining new runway} &28,000\\ \text{Annual incremental revenue from landing fees} &40,000\\ \end{array}$$

In addition to the preceding data, two other facts are relevant to the decision. First, a longer runway will require a new snowplow, which will cost $100,000. The old snowplow could be sold now for$10,000. The new, larger plow will cost $12,000 more in annual operating costs. Second, the County Board of Representatives believes that the proposed long runway, and the major jet service it will bring to the county, will increase economic activity in the community. The board projects that the increased economic activity will result in$64,000 per year in additional tax revenue for the county.

In analyzing the runway proposal, the board has decided to use a 10-year time horizon. The county’s hurdle rate for capital projects is 12 percent.

Required:

1. Prepare a net-present-value analysis of the proposed long runway.

2. Should the County Board of Representatives approve the runway?

3. Which of the data used in the analysis are likely to be most uncertain? Least uncertain? Why?

Calculate the derivatives of the functions. $f(x)=\left[(6.4 x-1)^{2}+(5.4 x-2)^{3}\right]^{2}$

Evaluate the expression. -6 + 3 - (-1) + 11

Should the multiple regression equation be used for predicting the LDL cholesterol level based on weight and diastolic blood pressure? Why or why not?

Use proofreading marks to correct any capitalization errors in the following sentence. Indicate the total number of changes at the right.

Google was originally named googol; however, an investor made a check out to "Google, inc.," and this typo became the Company's name. _________

Find the indicated derivatives.

$$\frac{dy}{dx}\quad\text{if}\quad y=\frac{3x-4}{12x^2}$$

Indicate whether the following statement is true (T) or false (F).

Semicolons and colons are always placed before closing quotation marks.

Use proofreading marks to correct any capitalization errors in the following sentence. Indicate the total number of changes at the right.

Our Organization's bylaws state the following: "The Secretary of the Association will submit an agenda two weeks before each meeting." _________

Find the sum. -41 + 26

Choose the correct answer.

Management is (a) adverse, (b) averse to any decrease in employee health benefits.

Respond to the following questions using the previous story:

(a) In "En el Jardin De Los Espejos Quebrados ...," what kinds of marks disfigure Caliban's body?

(b) Analyze What do these marks suggest about Caliban's supposed ugliness?