Answer:
10.3cm
Step-by-step explanation:
h=A
b=131.84
12.8≈10.3cm
Answer:
Wdym
Step-by-step explanation:
Answer:
2/1
Step-by-step explanation:
<span>y= -x^2 + bc + c represents a vertical parabola that opens down. As x approaches either + or - infinity, the function approaches - infinity. Imagine an upside down parabola; doing so will confirm this answer.
</span>
Use a portion of the circumference: pi x 2 x r x angle at centre =8xpix72/360 =8pi/5
