Answer:
- -1
- 0
Step-by-step explanation:
1. cos(π) = -1
2. sin(π) = 0
_____
It is useful to memorize the table below.
Answer:
78
Step-by-step explanation:
for the right side we can just do 14*2 since there are two people per seat and 14 rows
14 *2 is 28
for the left side we just do 14*3 since there are three people per seat and 14 rows
14*3 is 42
Then we have to add the 8 students that can fit in the very back seat
42 + 28 + 8
28 + 8 is 36
42 + 36 = 78
It’s the first one.............
Answer:
![\sqrt[4]{81} = {( {3}^{4}) }^{ \frac{1}{4} }](https://tex.z-dn.net/?f=%20%5Csqrt%5B4%5D%7B81%7D%20%20%3D%20%20%7B%28%20%7B3%7D%5E%7B4%7D%29%20%7D%5E%7B%20%5Cfrac%7B1%7D%7B4%7D%20%7D%20)
Step-by-step explanation:
it's obvious that 3·3·3·3=81
or you can do the prime factorization of 81
1:2=5:10, hope this helps