Answer:
B
Step-by-step explanation:
Given focus as (h,k) and directrix as y = mx + b, the equation of a parabola is given as:
Hence, from the given focus & directrix, we have:
h = -1
k = -1
m = 0
b = 1
<em>We can plug them into the formula and arrange to get:</em>
<em></em>
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<em>B is the correct answer.</em>
Step-by-step explanation:
In this case you know that the segment BC was dilated from the origin, producing the image B'C', whose endpoints are:
The image BC was dilated with a scale factor of 2. This means that each coordinate of the endpoints of BC was multiplied by 2.
Therefore, you can conclude that the segment BC is one-half the size of the segment B'C'.
So, you can divide each coordinate of B' and C' by 2 in order to find the coordinates of the points B and C.
Then:
B→
C→
It can't be A or D because they have negatives. you can't have negative donuts. you can't have 92.75 donuts therefore it's C
Answer:
One solution; x = -
Step-by-step explanation:
12x + 6 = 5x
12x - 5x = -6
7x = -6
x = -
Answer:
RS=5 TRUE
RS=4 FALSE (it’s 5)
ST=10 FALSE (it’s 8)
QR=4 FALSE (its 3)
Step-by-step explanation:
First, we have to determine the sides of the triangle.
4x-3=2x+1
4x-2x=1+3
2x=4
x=2
SO, RS=4x-3=4(2)-3=8-3=5
RT=2(x)+1=2(2)+1=5
QR=4²+b²=5². 16+b²=25. b²=25-16. b²=9. b=3
CLAIMS:
RS=5 TRUE
RS=4 FALSE (it’s 5)
ST=10 FALSE (it’s 8)
QR=4 FALSE (its 3)