Do you mean 'nine and eighty four hundredths' in standard form? If so, it will be:
9.84
Answer:
Pretty...accurate
Step-by-step explanation:
It's pretty accurate

is equal to 2x, since it is the derivative of

.
Answer:
i don't know
Step-by-step explanation:
i am lower grade srry
Answer: x=14
Explanation: the angle needs to equal the other angle, which is 63. To figure this out, we subtract 21 from 63. We get 42. 42 divided by 3 is 14. We are basically doing the equation in reverse.