Answer: not sure, hope you fail!
Step-by-step explanation:
Answer:
j
(
x
)
=
x
2
−
6
x
−
9
f
(
x
)
=
(
x
−
3
^)3
f
(
x
)
=
6
x
18
Step-by-step explanation:
6 nickels- 6+4=10, .05(6)+.1(4)=.7
.3+.4=.7
Answer:
about 151 feet
Step-by-step explanation:
The height of the ball at a time of 3.1 seconds is given by Charlize's equation as ...
h(3.1) = -16(3.1)^2 +3 = -150.76 . . . feet
The well is about 151 feet deep.
_____
<em>Comment on this measurement</em>
The speed of sound is sufficiently slow that it will make a difference in the time Charlize records. She would get a more accurate measurement if she were able to <em>see</em> the ball hit bottom.