Answer:
45
Step-by-step explanation:
Given that the number of savory dishes is 9 and the number of sweet dished is 5.
Denoting all the 9 savory dishes by 
, and all the sweet dishes by 
.
The possible different mix-and-match plates consisting of two savory dishes are as follows:
There are 9 plates with 
from sweet plates which are 
There are 9 plates with 
from sweet plates which are 
Similarly, there are 9 plated for each 
and 
Hence, the total number of the different mix-and-match plates consisting of two savory dishes
Answer: 30° and 330°
<u>Step-by-step explanation:</u>
sec θ = 
sec θ = 
=
cos θ = 
cos θ = 
cos θ = 
cos θ = 
Look at the Unit Circle to see that cos = at 30° and 330° ( which is equivalent to π/6 and 11π/6)
Answer:
8:55
Step-by-step explanation:
7:30 plus 1 hour is 8:30. Quarter is 25 or 1/4. Then you add 8:30 plus 25 which gives you 8:55.
To find how many hours Sonia work on her science project,we can multiply the working hours of Tony by the times Sonia did:
Therefore Sonia work on her science project for 5 5/6 hours.
Hope it helps!
