Answer:
9 hours at 9 dollars an hour is 81 dollars so therefore he needs to work 9 weeks in order to raise the money.
Step-by-step explanation:
Answer:
Option C - 9 AU
Step-by-step explanation:
To find : What is the average distance from Planet B to the star?
Solution :
According to kepler's law,
The squares of the sidereal periods (of revolution) of the planets are directly proportional to the cubes of their mean distances from the Sun.
i.e. 
We have given,
The average distance from the star to Planet A is 
AU.
It takes 432 Earth days for Planet A to orbit the star i.e. 
It takes 1,460 days for Planet B to complete an orbit i.e. 
Substitute the values in 
Taking root cube both side,
![\sqrt[3]{0.0875}=\frac{4}{S_2}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B0.0875%7D%3D%5Cfrac%7B4%7D%7BS_2%7D)
The average distance from Planet B to the star is 9 AU.
Therefore, Option C is correct.
Answer:
the larger cyclinder has a surface area which is 9 times the surface area of the smaller cyclinder.
Step-by-step explanation:
Surface area of larger cyclinder
Radius = 6cm
Height = 18cm
A = 2πrh + 2πr^2
= 2*3.14*6*18 + 2*3.14*6^2
= 678.24 + 226.08
= 904.32 cm
Smaller cyclinder (1/3 of the larger cyclinder)
Radius = 2cm
Height = 6cm
A = 2πrh + 2πr^2
= 2*3.14*2*6 + 2*3.14*2^2
= 75.36 + 25.12
= 100.48 cm
Comparing the surface area of the larger cyclinder and the smaller cyclinder
= 904.32 cm / 100.48 cm
= 9
This means, the larger cyclinder has a surface area which is 9 times the surface area of the smaller cyclinder.
Answer:
186 minutes.
Step-by-step explanation:
33.63 to start.
take away the service fee of 18.75
14.88
divide 14.88 by 0.08
186
Answer:
30.48 centimeters (round up to 30.5)
Step-by-step explanation:
