For this you need to use the reverse cosine function
Cos^-1 (.25)
75.6
It is equal to 2(x)^3 because pemdas, exponnets come before multiplication so it would be x^3 then multiply whatever that is by 2
2x^3 is answer (4th choice)
Answer:
y = 31
Step-by-step explanation:
We'll, if x + y = 10,
and x = -21,
then: -21 + y = 10.
To solve, add 21 on both sides to get y = 31
Hope this helps :)
