4)
the arrow touches the ground when the heigth is 0
so we need to replace h=0 and solve for t

<em>the arrow tuches the ground at 3.4 seconds</em>
5)

replacing

<em>solve for m</em>

<em>the mass is 13.50Kg</em>
<em />
Answer:
Option f) None of these
Step-by-step explanation:
We are given the following data set:
Sample size, n = 12
Sample mean = 9.4
Sample standard deviation = 0.64
Confidence interval:
Putting the values, we get,

Answer:
p= -13
Step-by-step explanation:
First step to this equation is to add(or subtract) the variables.
4p-p= 3p
3p+8= 2p-5
Then, you have to move the variable to one side.
3p+8= 2p-5
-2p -2p
Now that you have done this, subtract 8 to both sides.
1p+8= -5
-8 -8
Since a negative minus a negative equals a negative, -5-8= -13.
1p= -13
Divide to both sides by 1.
<u>1p</u>= <u>-13</u>
1 1
p= -13
Answer:
80
Step-by-step explanation:
1/3 of 120 is 40
If 40 leave
People left in party=120-40=80
Answer:
<h2><em><u>m</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>6.43</u></em><em><u> </u></em><em><u>(</u></em><em><u>approx</u></em><em><u>. </u></em><em><u>)</u></em></h2>
Step-by-step explanation:
49 - 3m = 4m + 4
=> 49 - 4 = 4m + 3m
=> 45 = 7m

=> 6.428571... = m
=><em><u> m = 6.43 (approx. ) (Ans)</u></em>