Answer:
The answer is
Step-by-step explanation:
Use distributive property to solve this expression.
Your answer is C (i think)
Answer:
61.5 ft²
Step-by-step explanation:
To find the area of the floor that is not covered by the rug, you need to find the total area of the room and subtract the area of the rug. The formula for the area of a rectangle is:
A = length x width
(10 x 12) - (6.5 x 9) = 120 - 58.5 = 61.5 ft²
Answer: see proof below
<u>Step-by-step explanation:</u>
Use the Product to Sum Identity: cos A · cos B = [cos (A - B) + cos (A + B)]/2
Use the Odd Function Identity: cos (-A) = - cos (A)
<u>Proof LHS → RHS:</u>
= 0
LHS = RHS