T F A structure member variable may be passed to a function as an argument.

In an electric circuit, the dual of resistance is: (a) conductance (b) inductance (c) capacitance (d) open circuit (e) short circuit

Evaluate the determinants

$$\left|\begin{array}{rrrrr} {5} & {-1} & {0} & {8} & {11} \\ {0} & {2} & {1} & {9} & {7} \\ {0} & {0} & {4} & {-3} & {5} \\ {0} & {0} & {0} & {2} & {1} \\ {0} & {0} & {0} & {0} & {-3} \end{array}\right|$$

The nth term of a sequence is given. Calculate the first five partial sums. $a_{n}=\frac{1}{n}$

Which loop should you use in situations where you wish the loop to repeat until the test expression is false, and the loop should not execute if the test expression is false to begin with?

(a) find the matrix A of the quadratic form associated with the equation, (b) find an orthogonal matrix P such that $P^{T} A P$ is diagonal, (c) use the Principal Axes Theorem to perform a rotation of axes to eliminate the xy-term in the quadratic equation, and (d) sketch the graph of each equation. $x y-2=0$

The number (in billions) of pieces of mail handled by the U.S. Post Office each year from 1980 through 2009 can be approximated by $P(t)=-0.00132 t^{4}+0.0665 t^{3}-1.127 t^{2}+11.581 t+105.655$, where t is the number of years since 1980. Find and interpret the rate of change in the volume of mail for the following years. a. 1995. b. 2005.

For the probability density functions defined, find (a) the expected value, (b) the variance, (c) the standard deviation, (d) the median, and (e) the cumulative distribution function. $f(x)=\frac{1}{5} ;[4,9]$

Find the following function values without using a calculator. $\cos -\frac{\pi}{6}$

What is a log-log plot?

A water dispenser for pets contains an inverted plastic bottle. When a certain amount of water is drunk from the bowl, more water flows automatically from the bottle into the bowl. The bowl never overflows. Explain the operation of the dispenser. Does the height of the water in the bottle depend on the surface area of the water in the bowl?

A three-phase source delivers 4.8 kVA to a wye-connected load with a phase voltage of 208 V and a power factor of 0.9 lagging. Calculate the source line current and the source line voltage.

Solve each differential equation and graph the function y=f(x) and the polygonal approximation on the same axes. $\frac{d y}{d x}=4-y$; y(0)=0

Write a program that lets a maker of chips and salsa keep track of sales for five different types of salsa: mild, medium, sweet, hot, and zesty. The program should use two parallel 5-element arrays: an array of strings that holds the five salsa names and an array of integers that holds the number of jars sold during the past month for each salsa type. The salsa names should be stored using an initialization list at the time the name array is created. The program should prompt the user to enter the number of jars sold for each type. Once this sales data has been entered, the program should produce a report that displays sales for each salsa type, total sales, and the names of the highest selling and lowest selling products. Input Validation: Do not accept negative values for number of jars sold.