The object for a magnifier is usually placed very close to the focal point of the lens, creating a virtual image that can be viewed with the relaxed eye. But the object could be placed so that the image is at the eye’s near-point distance. In that case, the image can be viewed only by using the full accommodation of the eye. With this arrangement, is the angular magnification greater than, equal to, or less than the magnification when the image is far away? Explain.

How do reversing entries make recordkeeping simple?

Draw a vertical line between the subject and predicate. Write S above each simple subject and V above each simple verb. The photographer took the photos and developed them himself.

In the following sentence, underline the complete subject once and the complete you preach twice. Circle and label the simple subject (SS) and simple predicate (SP).

Kayaking is an immensely enjoyable sport.

Draw one line under each simple subject and two lines under each simple predicate.

That store sells everything from anise cookies to zinnia seeds.

Examining Simple Sentences. Each sentence below is a simple sentence. Underline all the subjects once and all the verbs twice. Bill and Sue opened their gifts and examined them carefully.

Draw a vertical line between the subject and predicate. Write S above each simple subject and V above each simple verb. You and Tom have the best parts in the play.

In the following sentence, underline the complete subject once and the complete you preach twice. Circle and label the simple subject (SS) and simple predicate (SP).

Did the truck arrive at the depot?

Draw one line under the simple subject and two lines under the simple predicate for the given sentence below.
Suddenly, several passengers spotted a giraffe and several lions.

True or False:

(a) The adjacency matrix of a simple graph must be symmetric.

(b) The adjacency matrix for a simple digraph may contain negative numbers.

(c) If $\mathbf{A}$ is the adjacency matrix for a simple digraph and the $(1,2)$ entry of $\mathbf{A}^n$ is zero for all $n \geq 1$, then there is no path from vertex $P_1$ to $P_2$.

(d) The number of edges in any simple graph equals the number of $1$'s in its adjacency matrix.

(e) The number of edges in any simple digraph equals the number of $1$'s in its adjacency matrix.

(f) If a simple graph has a path of length $k$ from $P_1$ to $P_2$ and a path of length $j$ from $P_2$ to $P_3$, then it has a path of length $k+j$ from $P_1$ to $P_3$.

(g) The sum of the numbers in the $i$ th column of the adjacency matrix for a simple graph gives the number of edges connected to $P_i$.

Draw one line under the simple subject and two lines under the simple predicate for the given sentence below.
The day ended too soon with a journey back to the town.

Draw one line under each simple subject and two lines under each simple predicate. Flowers were growing in every nook and cranny of the tiny backyard.

Draw one line under the simple subject and two lines under the simple predicate for the given sentence below.
Two small cubs batted each other with padded paws.

Copy the sentence. Draw a vertical line between the complete subject and the complete predicate. Then underline the simple subject once and the simple predicate twice.

Everyone knows about swimming fish.