Answer:the answer is a
Step-by-step explanation:
<em>Options:</em>
<em>Rotation of 180° about point B
</em>
<em>Rotation of 90° about point b
</em>
<em>Reflection over the x-axis
</em>
<em>Translation down 2 units</em>
<em></em>
Answer:
Rotation of 180° about point B
<em></em>
Step-by-step explanation:
Considering coordinates of point B
Assume the coordinates of the line at point B is (x,y)
i.e. 
First, we need to determine the slope at point B
Taking coordinates about the origin.
The slope of B is:
Where
--- origin
becomes
Taking the options one after the other:
Option A.
When rotated by 180°, the resulting coordinates of B would be
Taking the slope of B'
The slope of B is:
Where
--- origin
becomes
Notice that the slope of B and B' is the same;
<em>Hence:</em>
<em>Rotation of 180° about point B answers the question</em>
<em></em>
<em>There's no need to check for other options</em>
When you compare 649 and 645, you see that the first two digits are the same, and you compare until the last digit: in a way you need to do 3 comparisons, one for each digit (and after first and second you conclude that you still need to compare).
when you compare 645 and 738 you see immediately that the second number is bigger: the numbers differ already in the number of hundreds than they have, so you don't need to compare their tenths and one's, just the hundreds.
This is helpful at grocery store and stuff
495+254=400+90+5+200+50+4=
400+200+90+50+5+4=
600+140+9=
600+100+40+9=
700+40+9=
749
The 14 compact cars sold by a dealer on Monday was 56% of the cars sold that day.
Situation is looking for a percent of compact car that is 56 or part that is 14 compact car out of whole.
<u>Solution:
</u>
Given that
14 compact cars sold by a dealer on Monday was 56% of the cars sold that day.
Need to decide whether the following situation is looking for the percent, the part, or the whole.
From given information ,
The part that is 14 compact cars out of all cars are sold on the day.
Also 14 compact car are 56% of the car sold on that day.
So clearly situation is looking for a percent of compact car that is 56 or part that is 14 compact car out of whole.
