Answer:
Step-by-step explanation:
using sin formula
![\frac{sin~E}{15} =\frac{sin ~90}{39} \\sin ~E=15 \times ~\frac{1}{39} =\frac{5}{13}](https://tex.z-dn.net/?f=%5Cfrac%7Bsin~E%7D%7B15%7D%20%3D%5Cfrac%7Bsin%20~90%7D%7B39%7D%20%5C%5Csin%20~E%3D15%20%5Ctimes%20%20~%5Cfrac%7B1%7D%7B39%7D%20%3D%5Cfrac%7B5%7D%7B13%7D)
To get one hour you multiply 30 by 2 so you multiply 20 by two also
this gives you 40km per hour
Answer:
ok where is the question
Step-by-step explanation:
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Answer:
16.5, 19, 21.5, 24, 26.5, 29, 31.5, 34,
Step-by-step explanation:
each hour it increases by 2.5 inches and this is how much in each hour