Answer true or false for each of the following: A strong acid

c. has a strong conjugate base

For this exercise, you will sketch the graph of the function.

$$f(x)= \begin{cases}-x & \text { if } x<0 \\ x^2 & \text { if } 0 \leqslant x<2 \\ 1 & \text { if } x \geqslant 2\end{cases}$$

On the lines provided, rewrite the following phrases and short sentences so that the possessive forms are correct. If an item is already correct, write $C$.

Example 1. Casey's and Marcos grades $\underline{\text{Casey's and Marcos's grades}}$

6. Chris and Lindas' conversation $\underline{\phantom{\text{The horse with the sllvery mane and white tall was chosen by the photographer.}}}$

Which word could best replace derived?

(A) predicted (B) ignored (C) hidden (D) received

The value of $g$ at any latitude $\phi$ may be obtained from the formula

$$g=32.09\left(1+0.0053 \sin ^2 \phi\right) \mathrm{ft} / \mathrm{s}^2$$

which takes into account the effect of the rotation of the earth, as well as the fact that the earth is not truly spherical. Determine to four significant figures $(a)$ the weight in pounds, $(b)$ the mass in pounds, $(c)$ the mass in $\mathrm{lb} \cdot \mathrm{s}^2 / \mathrm{ft}$, at the latitudes of $0^{\circ}, 45^{\circ}, 60^{\circ}$, of a silver bar, the mass of which has been officially designated as $5\ \mathrm{lb}$.

Why does the author dream of having "strong wings"?

On the line provided, write each of the following words, using hyphens to show how the word could be divided at the end of a line. If a word should not be divided, write do not divide.

Example 1. frankly $\underline{\text{frank-ly}}$

plunge $\underline{\phantom{\text{The horse with the sllvery mane and white tall was chosen by the photographer.}}}$

is nabr a strong electrolyte

Rewrite the following sentences to correct any errors in the use of abbreviations.

Example 1. The accident occurred at 6:23 PM on Dec. 28, 1999. $\underline{\text{The accident occurred at 6:23 P.M. on December 28, 1999.}}$

10. Please have the manuscript to me by Tues., Sept. 12, 2001, at four o'clock PM. $\underline{\phantom{\text{The horse with the sllvery mane and white tall was chosen by the photographer.}}}$

The following is a set of data from a sample of n=11 items:

$$\begin{array}{rrrrrrrrrrrr}X & 7 & 5 & 8 & 3 & 6 & 10 & 12 & 4 & 9 & 15 & 18 \\ Y & 21 & 15 & 24 & 9 & 18 & 30 & 36 & 12 & 27 & 45 & 54\end{array}$$

a. Compute the covariance.

b. Compute the coefficient of correlation.

c. How strong is the relationship between X and Y ? Explain.

A Taylor polynomial centered at 0 will be used to approximate the cosine function. Find the degree of the polynomial required to obtain the desired accuracy over the indicated interval.

Maximum Error: 0.001, Interval: [-0.5,0.5]

Reduce $[A | I]$ to find $A^{−1}$. In each case, check your calculations by multiplying the given matrix by the derived inverse.

$$\left[\begin{array}{lll} 1 & 3 & 5 \\ 0 & 1 & 4 \\ 0 & 2 & 7 \end{array}\right]$$

On the line provided after each item, write the contracted form, using apostrophes correctly.

Example 1. will not $\underline{\text{won't}}$

5. have not $\underline{\phantom{\text{The horse with the sllvery mane and white tall was chosen by the photographer.}}}$

On the line provided after each item, write the contracted form, using apostrophes correctly.

Example 1. will not $\underline{\text{won't}}$

Reduce $[A | I]$ to find $A^{−1}$. In each case, check your calculations by multiplying the given matrix by the derived inverse.

$$\left[\begin{array}{lll} 1 & 4 & 2 \\ 0 & 2 & 1 \\ 3 & 5 & 3 \end{array}\right]$$