Answer:
I think it is A, im sorry i not really good at this
Step-by-step explanation:
Considering the ballon to be spherical
It's volume is given by 4/3(π r^3) by differentiating volume with respect to time we get rate of change of volume hence,
4πr^2(dr/dt)=600÷60=10
Substituting r=30cm
4π(30)*(30)(dr/dt)=10
dr/dt=rate of increase in bullion's radius=1/(360π)cm/s
The answer will be x=4 and y=5
Answer:
Step-by-step explanation:
(9 + m)(-m + 9) = (9 + m)(9 - m) {(a+b)(a-b) = a² - b²}
= 9² - m²
= 81 - m²
= -m² + 81
Hey there!
50 - 16 ÷ 2 × (12 + 4)
= 50 - 8 × 12 + 4
= 50 - 8 × 16
= 50 - 128
= -78
Therefore, your answer is: -78
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
