Answer C. 6 hours
Step-by-step explanation:
12/2=6  36/6=6 $6 per hour 
 
        
                    
             
        
        
        
The gas will cost $8.44 in a year
        
             
        
        
        
Part A:
Finding the probability of P(Z < -1.27), we refer to the z-table to the left of the distribution and we have
Therefore

Part B:
Doing the same process as above, however we also need to find the P(Z < 1.68)
Solving for P(-1.27 < Z < 1.68) we have
![\begin{gathered} P\mleft(-1.27Part C:Again we need to find first P(Z < 1.96) to the left of zSince this probability is of P(Z < 1.96) , solve for P(Z > 1.96) by[tex]\begin{gathered} P\mleft(Z>1.96\mright)=1-P\mleft(Z1.96)=1-0.97500 \\  \\ \text{Therefore,} \\ P(Z>1.96)=0.02500 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20P%5Cmleft%28-1.27%3Cstrong%3EPart%20C%3A%3C%2Fstrong%3E%3Cp%3EAgain%20we%20need%20to%20find%20first%20P%28Z%20%3C%201.96%29%20to%20the%20left%20of%20z%3C%2Fp%3E%3Cp%3ESince%20this%20probability%20is%20of%20P%28Z%20%3C%201.96%29%20%2C%20solve%20for%20P%28Z%20%3E%201.96%29%20by%3C%2Fp%3E%5Btex%5D%5Cbegin%7Bgathered%7D%20P%5Cmleft%28Z%3E1.96%5Cmright%29%3D1-P%5Cmleft%28Z%3C1.96%5Cmright%29%20%5C%5C%20P%28Z%3E1.96%29%3D1-0.97500%20%5C%5C%20%20%5C%5C%20%5Ctext%7BTherefore%2C%7D%20%5C%5C%20P%28Z%3E1.96%29%3D0.02500%20%5Cend%7Bgathered%7D) 
 
        
             
        
        
        
Answer:
34 m squared
A=bh/2
Step-by-step explanation:
10+24+24+10
10+10=20
24+24=48
48+20
=68/2
=34