Answer:
Step-by-step explanation:
It doesn't look right to me, but you may not have the choices I would want to use. I think it should go
1/2
cos^2
sqrt(x)
+ 2)
The square root covers just the x, and nothing more.
Given:
The cost to install x number of central air conditioning units for a company is given by the function

To find:
The cost to install 45 air conditioners.
Solution:
We have,

Putting x=45, we get





Therefore, the cost to install 45 air conditioners is $60433.33.
Subtract 195 by the 25 extra minutes paula ran on saturday. then divide the answer(170) by 2 to get 85 for the number of minutes she ran on sunday. Add the 25 extra minutes to 85 to get the number of minutes she ran on saturday, which will be 110 minutes.
No.
The three angles of a triangle need to add up to 180 degrees, this means no one angle can be 180 degrees.
Answer:
The region in red contains the solutions to the system
Step-by-step explanation:
Check the graph below.