Answer:
87.5
Step-by-step explanation:
By completing the square,
y
=-14x^2+70x
=-14(x^2-5x)
=-14(x-5/2)^2+175/2
the max. height=175/2
i.e. 87.5
Radius = Diameter ÷ 2 = 10 ÷ 2 = 5 cm
Volume = 4/3 πr³ = 4/3 π(5)³ = 524 cm³
Answer: 524 cm³ of water is needed to fill the balloon.
Answer:
7
Step-by-step explanation:
49(waterballoons) divided by 7=7groups
Use PEMDAS and you should get 225