By the Intersecting Secants Theorem we have
2x(2x+7)=x(x+23)
4x^2+14x=x^2+23x
3x^2=9x
3x=9
x=3
Since DY is length 2x,
the length of DY is 6.
Answer:
C- the third one
Step-by-step explanation:
It is the only one that shows the dot on -2
if this helps, brainliest, please?????
Answer:
n=-1
Step-by-step explanation:
7n + 28 = 21
subtract 28 on both sides
7n= -7
divide by seven on both sides
n= -1
Answer:
4=3/4(-8)+b
Step-by-step explanation:
You have to use the equation Y=mx+b
M is your slope so 3/4
x=-8
Y=4
Then u put it into the equation and get 4=3/4(-8)+b
Hope this helps:)
