9514 1404 393
Answer:
13120
Step-by-step explanation:
The sum of terms of a geometric series is ...
Sn = a1·(r^n -1)/(r -1)
You have n=8, a1=4, r=3, so the sum is ...
S8 = 4·(3^8 -1)/(3 -1) = 2(3^8 -1) = 13,120
Ari's charge is less than David's charge bc David is charging 20. 50 and aris is charging 18. 25
Answer:

Step-by-step explanation:
The ratio of the side lengths (AB) and (BC) is given. One is also given an expression for the side lengths of each of these sides. Set up a proportion to describe this scenario, then solve using cross products;

Substitute,

Cross products,


Inverse operations,

Answer: SOH CAH TOA Tan C= 11/22= 1/2 So Tan C= 1/2
Sin B= x/17
Step-by-step explanation:
SOH CAH TOA = S=o/h C=a/h T=o/a.
I love trig ratios!
Hope this helped.