    
−       
= 
 − −   
2. The depth of a river at a certain point is modeled by the function W defined above, where
W t( )
is measured in feet
and time t is measured in hours.
(a) Find
W ' 8( )
. Using correct units, explain the meaning of
W ' 8( )
in the context of the problem
(b) The graph of
W
is concave down for
3 3.5  t
. Use the line tangent to the graph of
W
at
t = 3
to show that
W (3.5 9 )  .
(c) Find
( )
3
2
1
4
lim
t 2
W t t
→ t
− +
−
.

answer: 25.4 units

step-by-step explanation: radius = 12.7 units

diameter = twice the radius

diameter = 12.7 x 2

= 25.4

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.

well what you have to do is divide 84 by 6 so theanswer

step-by-step explanation:

84 divided by 6 = 14

and that lightbulb changing party must be freaking lit!

f(x)=2/3x-8, which give g(x) the greatest value.

step-by-step explanation: