Answer:
sin(12°)
Step-by-step explanation:
Because sine and cosine are cofunctions, we can use the relation sin(90° - θ) = cosθ to show that cos(78°) = sin(90° - 78°) = sin(12°)
I think you can cut it from the top of it to make one more?
Answer:
1,300
Step-by-step explanation:
First, we need to substitute all the variable with the given number.
To figure out the 2 equivalent squares, do 20 x 20 , which is 400.
Then, the 3rd triangle, do 28 x 25 , equaling 700.
Lastly, for the 2 triangles, 20 x 20 / 2 , leading to the solution of 200.
Now, putting everything together by adding 400+700+200, the final answer is 1,300.
I hope this helped!!
~ Penny
<span> -9x4 + 5x2 - 26x - 12
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