9514 1404 393
Answer:
∠A ≈ 72°
Step-by-step explanation:
Fill in the given numbers and do the arithmetic.
cos A = (2.9² +2.5² -3.2²)/(2(2.9)(2.5)) = 4.42/14.5
The inverse cosine function is used to find the angle, given its cosine.
A = arccos(4.42/14.5)
∠A ≈ 72°
Answer:
21 hours
Step-by-step explanation:
First, multiply 18 by 27 to represent the painting. You should get 486.
Then, subtract 486 from 738. You should get 252
Lastly, divide 252÷12. You should get 21.
Hope this helped!
Answer:
6ft
Step-by-step explanation: