Answer:
9.55 in
Step-by-step explanation:
The formula for the circumference of a circle (or the circum. of a basketball) is C = πd, where d is the diameter.
Here C =30 in = πd, so
d = (30 in) / π
= 9.55 in, approx.
9514 1404 393
Answer:
2.56
Step-by-step explanation:
Multiply by (1+6e^(-.7t))/1000:
2000/1000 = 1 +6e^(-0.07t)
1 = 6e^(-0.07t) . . . . . . . . . subtract 1
e^(0.07t) = 6 . . . . . . . . . . multiply by e^(0.07t)
0.07t = ln(6) . . . . . . . . . take the natural log
t = ln(6)/0.07 . . . . . . . divide by the coefficient of t
t ≈ 2.55966 ≈ 2.56
The answer to this is atmosphere.
The atmosphere is the layer of air that surrounds the Earth and is comprised mainly of nitrogen and oxygen.
So that's why the sphere that contains the air we breathe is atmosphere.
Hope this helped :)
have a great day
Answer:
i think it's 11x-1
Step-by-step explanation:
2(1-3x)-(5x+1)
2-6x-5x-1
2-11x-1
11x-1
