1 and 4. Please give brainliest!
Rotation 180 degrees counterclockwise direction about the origin.
hope that this helped you out a lil hon :)
1. Expand by distributing terms.
5x times 3 + 5x times -7y
2. Simplify 5x times 3 to 15x.
15x + 5x times -7y
3. Simplify 5x times -7y to -35xy.
15x - 35xy
Then you’re done. Hopefully this helps.
Speed is the rate of distance over time.
<em>The speed of the boat is 13mph south-west</em>
Given
<em />
<em> --- west</em>
<em />
<em> -- south</em>
<em />
The speed is illustrated with the attached image
Because both speeds act at a diagonal, the speed (v) of the boat is calculated using Pythagoras theorem as follows:



Take square root


<em />
<em>Hence, the speed of the boat is 13mph south-west</em>
Read more about speed at:
brainly.com/question/22610586