Chris’s biology teacher sent them a document that contains several diagrams to study for an upcoming test. However, the diagrams are quite small. What can Chris use to make them easier to read?

Responses

The Ribbon

Zoom

Enhance

Oscillate

11 answers

Chris can use Zoom to make the diagrams easier to read. Zooming in will enlarge the diagrams, making the details more visible.

Annie wants to add some information to the bottom of each page of a document, but she isn’t sure how to do this. Which of these would be best to type into the help box or a search engine?

Responses

Adding Lower-Level Info

Adding a Footer

Adding a Baseboard

Adding Endnotes

Annie should type Adding a Footer into the help box or a search engine. This will provide her with the instructions she needs to add information to the bottom of each page of her document.

Marco and Jenny are writing a report together for their history class. They want to be able to see what alterations the other person makes to the document. Which of these should they use?

Responses:
Permissions

Permissions

Track Changes

Track Changes

Headers and Footers

Headers and Footers

Macros

Marco and Jenny should use Track Changes. This feature allows them to see alterations made by the other person in the document, including additions, deletions, and formatting changes.

if each section of a lab report needs to begin on a new sheet of paper, what should be added?

Responses:

Margins

Orientation

Location

Page Break

A Page Break should be added to ensure that each section of the lab report begins on a new sheet of paper.

Use the substitution method to solve the system 2x+3y=4 , −4x−6y=−8

Responses:
(2-1)
no solution
(-1,2)
infinite solutions

To solve the system of equations using the substitution method, we can start with the first equation:

  1. \( 2x + 3y = 4 \)

From this, we can express \( y \) in terms of \( x \):

\[ 3y = 4 - 2x \] \[ y = \frac{4 - 2x}{3} \]

Now, we will substitute \( y \) into the second equation:

  1. \( -4x - 6y = -8 \)

Substituting \( y \):

\[ -4x - 6\left(\frac{4 - 2x}{3}\right) = -8 \]

Distributing the -6:

\[ -4x - \frac{24 - 12x}{3} = -8 \]

To eliminate the fraction, multiply the entire equation by 3:

\[ -12x - (24 - 12x) = -24 \]

Simplifying further:

\[ -12x - 24 + 12x = -24 \] \[ -24 = -24 \]

This statement is always true, which indicates that the two equations represent the same line. Therefore, there are infinite solutions to this system of equations.

The correct response is: infinite solutions.

Use the substitution method to solve the system x=y−4, x+8y=2

Responses:

no solution

infinite solutions

(−3 1/3,2/3)

(2/3,−3 1/3)

To solve the system of equations using the substitution method, let's start with the first equation:

  1. \( x = y - 4 \)

Now we can substitute this expression for \( x \) into the second equation:

  1. \( x + 8y = 2 \)

Substituting \( x \):

\[ (y - 4) + 8y = 2 \]

Now simplify the equation:

\[ y - 4 + 8y = 2 \] \[ 9y - 4 = 2 \]

Next, add 4 to both sides:

\[ 9y = 6 \]

Now divide by 9:

\[ y = \frac{6}{9} = \frac{2}{3} \]

Now that we have \( y \), we can substitute it back into the first equation to find \( x \):

\[ x = y - 4 = \frac{2}{3} - 4 = \frac{2}{3} - \frac{12}{3} = -\frac{10}{3} \]

Now we have the solution \( \left(-\frac{10}{3}, \frac{2}{3}\right) \).

However, it seems there is no exact match from the provided choices. The solution should be simplified or verified against the choices. Let’s calculate the coordinates accurately.

So we can recalculate:

\[ x = y - 4 \] Substituting \(y = \frac{2}{3}\):

\[ x = \frac{2}{3} - 4 = \frac{2 - 12}{3} = -\frac{10}{3} \]

Thus, we actually found: \[ x = -\frac{10}{3}, \quad y = \frac{2}{3} \]

This simplifies to:

\[ (-3\frac{1}{3}, \frac{2}{3}) \text{ or } (-\frac{10}{3}, \frac{2}{3}) \]

However, since the answer choices provided are:

  • no solution
  • infinite solutions
  • \((-3 \frac{1}{3}, \frac{2}{3})\)
  • \((\frac{2}{3}, -3 \frac{1}{3})\)

The closest match based on the options is:\((-3 \frac{1}{3}, \frac{2}{3})\).

Thus the correct answer would be:

(−3 1/3, 2/3).