I plan to have a food sale tomorrow on campus. If tomorrow is a sunny day, I plan to sale all of food and I can get an income of
1 answer:
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Answer:
Step-by-step explanation:
This problem can be solved using the pythagorian theoreme:
Where:
We isolate our incognita an we get:
We supplant with the given data:
Answer:
Step-by-step explanation:
we know that
To find what fraction of the remaining pieces are apple, divide the remaining pieces of apple by the total remaining pieces
we have that
the remaining pieces of apple is equal to 6
the total remaining pieces is 11
so
Answer:
A and C
Step-by-step explanation:
Given
2cos²x - 2 = 0 ( add 2 to both sides )
2cos²x = 2 ( divide both sides by 2 )
cos²x = 1 ( take the square root of both sides )
cos x = ± = ± 1
cos x = 1 ⇒ x = (1) = 0°
cos x = - 1 ⇒ x = (- 1) = 180°