Answer:
100feet
Step-by-step explanation:
Given the height reached by a dolphin expressed by the equation is h = -16t^2 + 80t. At maximum height, the velocity is zero, hence;
v(t) = dh/dt = -32t + 80
0 = -32t + 80
32t = 80
t = 80/32
t = 2.5secs
Substitute t = 2.5 into the height formula h = -16t^2 + 80t
h = -16(2.5)^2 + 80(2.5)
h = -100+200
h = 100feet
Hence the maximum height the dolphin jumps is 100feet
Answer:
b=12
Step-by-step explanation:
3b +24= b +48
-24 -24
3b = b+ 24
-b -b
2b = 24
÷2 ÷2
b=12
Answer: ratio of her SAVINGS to her EXPENDITURE=1:7
Step-by-step explanation:
Neelam's daily income = ₹ 800
Neelam's daily savings amount = ₹100
Therefore her expenditure will be Daily income - Daily savings
= ₹ 800- ₹ 100= ₹ 700
ratio of her SAVINGS to her EXPENDITURE
= 100: 700
=1:7
Answer:
Step-by-step explanation:
I know the B is 2
Sorry I don't know the A
