Answer: 110pi
Solution: S = 2•pi•r•h + 2 pi•r^2 =2•6•5pi + 2•pi•25 = 60pi + 50pi = 110pi
32.50,
<span>45.50 - 39 = 6.50 (the cost of one movie channel) </span>
<span>39 - 6.50 = 32.50 (the cost of cable without any movie channels) </span>
<span>Proof </span>
<span>32.50+6.50+6.50 = 45.50 </span>
Hi there! Mind trick question again...
The answer is 0.4624159615452.
I hope this is correct! Have a great day!
The bananas are not an equal number so you would not have the same amount unless you take one out.
The smallest region that can be photographed is
5*7 = 35 square km
so we want to know how long it takes to zoom out to an area of
35 * 5 = 175 square km.
Notice that the length and width increase at the same rate, 2 km/sec, and they start out with a difference of two, so when the width has increased from 5 to x, the length will have increased from 7 to x+2. At the desired coverage area, then,
x(x+2) = 175
x^2 + 2x = 175
x^2 + 2x + 1 = 176 [completing the square]
(x+1)^2 = 176
x+1 = ±4√11
x = -1 ±4√11
Since a negative value for x is meaningless here, x must be
-1 + 4√11 = about 12.27 km
and the time it took to increast to that value was
(12.27 - 5) km / (2 km/sec) = about 3.63 seconds
