Rosie went on a hiking trip. The first day she walked 18 kilometers. Each day since, she walked 90% of what she walked the day before. What is the total distance Rosie has traveled by the end of the 10th day

Step-by-step explanation:

GIVEN: Rosie went on a hiking trip. The first day she walked kilometers. Each day since, she walked of what she walked the day before.

TO FIND: What is the total distance Rosie has traveled by the end of the day.

SOLUTION:

Rosie walked first day

Rosie walked on second day

Rosie walked on third day

this forms a GP with first term and common ratio

General term of GP

Sum of GP

Hence Rosie traveled total

based on context clues you gave i'm assuming the answer would be c.

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2