Answer:
1.08 seconds
Step-by-step explanation:
given data
<u>first equation:</u>
According to the data, sharon position will be
h(t)= -16 
+ 4t +18---->eq(1)
<u>Second equation;</u>
When Sharon jumps, Megan throws a beach ball up to Sharon with an initial upward velocity of 16 ft/s from a height 5 feet off the ground to the nearest hundredth of a second
therefore, ball position would be
h(t)= -16 +16t +5 --->eq(2)
In order to find how long after she jumps does the ball reach Sharon i.e time, we will equate eq(1) and eq(2)
Therefore,
eq(1)= eq(2)
-16 +4t +18 = -16 + 16t +5 --->(further simplifying it)
-16 + 16 + 18 -5 = 16t - 4t
13 = 12t
t= 13/12
t= 1.08 s
Thus it took 1.08 seconds.
Answer:
You kayak 255 feet farther 5 minutes on the way down the river than in 5 minutes on the way up the river
Step-by-step explanation:
Given:
The rate at which you kayak up a river = 48 feet every 30 seconds.
The rate at which you kayak down a river = 423 feet every 3 minutes
To Find:
How much farther do you kayak in 5 minutes on the way down the river than in 5 minutes on the way up the river = ?
Solution:
Let the speed with which you kayak up the river be x and the speed with which you kayak down the river be y
Then
x =
[ Converting 30 seconds to 0.5 minutes]
x = 96 feet per minute
Similarly
y =
y = 141 feet per minute
Now the distance kayaked up the river in 5 minutes
=>
=>
( in 5 minutes there are 10 30 minutes)
=>960 feet
Now the distance kayaked down the river in 5 minutes
=>
=>
( in 5 minutes there are 10 30 minutes)
=>705 feet
Thus
960-705 = 255 feet
Answer:
The answer is C.
In order to make an exponent positive, you just switch it to the opposite part of the fraction. So, for example,
x^-3= 1/x^3
or
1/x^-5 = x^5/1
You just switch it to the opposite part of the fraction, and make the exponent positive.
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Step-by-step explanation:
Answer:
Width Length Area
1 m 31 m 31 m2
2 m 30 m 60 m2
3 m 29 m 87 m2
4 m 28 m 112 m2
5 m 27 m 135 m2
------------------------------
14 m 18 m 252 m2
15 m 17 m 255 m2
16 m 16 m 256 m2
17 m 15 m 255 m2
18 m 14 m 252 m
Step-by-step explanation:
