X^2+ (y+8)^2 = 81.....this is C.
X^2 + y^2 + 16y +64=81 so x^2 + y^2 + 16y = 17.....this is D.
So I’d say C and D are correct
Answer:
24
Step-by-step explanation:
<span>the ratio of the girls to boys in the bird-watching club is 18/9 = 2/1
answer
2/1</span>
Let bob score =x
according to given condition
(3x-40)/2=100
3x-40=200
3x=240
x=80
so bob score =80
Answer:
-ad-r=C
-------- Sorry thats the best I could do for a fraction symbol
3-b
Step-by-step explanation:
In order to solve for C we need to get it C on one side of the equation all by itself. To start we can subtract R from both sides and subtract bc from both sides to get both C's on one side. That gets us to
-ad-r=3c-bc
Since the side with C has a common factor, C between 3c and bc we can pull that out, and we get
-ad-r=c(3-b)
and then we just divide 3-b on both sides to get C completely by itself
-ad-r=C
--------
3-b
I hope this helps and please don't hesitate to ask if there is anything still unclear!
