Let's start with a picture.
We see RST is smaller, and BC is parallel to but in the opposite direction to its corresponding segment ST. Both have slope -1.
If we look at the difference of points (technically called vectors but we don't have to go there) we get
C-B=(-2,2)
T-S=(1,-1)
Without further calculation we can see T-S is half the length of C-B.
The problem asks for a dilation followed by a reflection. We know the dilation scale is k=1/2 because the new triangle is half the size.
After dilation we get A'B'C':
A'(3,2), B'(-1,0), C'(-2,1)
We see now we need a reflection that flips the coordinates x and y. That's the +45° line through the origin, namely y=x.
Answer: k=1/2, y=x
If you are asking what is 1/4 of 12, it would be 3.
Answer:
140.74
Step-by-step explanation:
1.area of right triangle
1/2*b*h=1/2*20*18=180
2.area of semi circle
1/2*pi*r^2=1/2*pi*5^2=39.26
r= d/2
180-39.26=140.74
36
This is because its a square shape so you would divide 144 by 4 and you get 36
I hope this helps:)
Answer: 3 packs of notecards.
Step-by-step explanation:
Since it costs $4 for a pack of 12, we could use multiplying to find the answer.
$4 x 3 = 12
$16 - $4 = $12
Therefore, Jenna buys 3 packs.
