Answer:
66
Step-by-step explanation:
the shape is a trapezium, and the formula for a trapezium is 1/2 times height (a+b) where a and b is the uneven sides and h is the height. all together it is 1/2 times 6 (8+4)
Here is a screen shot of the graph
Answer:
my answer came out like this
total area : 24 + 24.8 = 48.8
48.8 square feet
~batmans wife dun dun dun...aka ~serenitybella
Answer:
10
Step-by-step explanation:
.........brainliest pls
Answer:
see below
Step-by-step explanation:
prove: sin²x cos²y - cos²x sin²y ≡ sin²x - sin²y
we notice that the Right side only has sin² functions, hence we can start by trying to remove the cos² functions from the Left side.
Recall the identity: sin²α + cos²α = 1 , can be rearranged to give us:
cos²α = 1 - sin²a.
If we apply this to the left side of our equation, then
cos²y = 1-sin²y, and cos²x = 1-sin²x
Substituting these into the left side of the equation:
sin²x cos²y - cos²x sin²y
= sin²x (1-sin²y) - (1-sin²x ) sin²y
= sin²x - (sin²x sin²y) - sin²y + (sin²x sin²y)
= sin²x - sin²y
= Right Side of equation (Proven!)
