Answer:
<em>a)</em> $96
<em>b)</em> she was had $120 in the beginning
Please vote for Brainliest and I hope this helps!
Answer:
m∠ABC=42°
Step-by-step explanation:
m∠ABD=70°
⇒m∠ABD=m∠ABC+m∠CBD
⇒70°=(3x+33°)+(5x+13°)
70°=8x+46°
70°-46°=8x
24°=8x⇒x=3°
x=3°
Then,
m∠ABC=3x+33°
put x=3°, we get
m∠ABC=3×3°+33°=9°+33°
m∠ABC=42°
Now the formula for the area of a circle is: πr². So we take 3 and just put it into the equation. π·3²=28.27. This is the area of the circle. Now the rate of change I think would just be the difference between the radius and the area of the circle so 28.27-3=25.27.
25/200 i AM SURE IT IS THIS ANSWER sorry caps lock
Hope this helps
Alright, let's cross-multiply both sides.
(x-2) will multiply with (x+12)
(x+4) will multiply with (x+2)
FOIL each, making them:
x^2+10x-24 = x^2+6x+8
Bring all x-values to one side:
x^2+10x-24=x^2+6x+8
-x^2 -6x -x^2 -6x
4x-24=8
+24 +24
4x=32
/4
x=8
