Answer:
an = 9(⅔)^(n-1)
Step-by-step explanation:
The formula for explicit is: An = a1(r)^(n-1)
You can solve for sides of a triangle using the following equation.
A = arccos (b^2 + c^2 - a^2/2bc)
And likewise for other variables by moving the letters.
Ultimately, in this problem you get the following angle measures:
15.87
23.97
140.16
Step 1
Use the ratio of the number to the percentage to get the required answer.

Where,

Step 2
Get the required answer

The number of students that got B or a better grade on the test = 19 students rounded to a whole number.
Answer:21
Step-by-step explanation: you multiply f times x to equal 21
Answer:
Length=2
Step-by-step explanation:
(2w+4)/(w+2)=2