Answer:
7.83
Step-by-step explanation:
cos(40)=6/(ZX)
zx=7.83
The nth number is 81 /10.
Steps:
You multiple the denominator by itself
49.5/ 5.5
= 9 minutes to run one mile
It’s rather b or d. I’m not sure where to go from there though, sorry :(
When exponents are separated by a parenthesis it means you need to add them. Because the parenthesis is around the entire number then you raise everything inside the parenthesis to the outside exponent. Then anything raised by 0 as an exponent is automatically 1.
You think of this visually as 3a*3a*3a= 27a^9 is your answer
