Answer:
77=44+22w
Step-by-step explanation:
Recall that
sin²(<em>x</em>) = (1 - cos(2<em>x</em>))/2
so that
sin²(7<em>π</em>/8) = (1 - cos(7<em>π</em>/4))/2
sin²(5<em>π</em>/8) = (1 - cos(5<em>π</em>/4))/2
Then
sin²(7<em>π</em>/8) + sin²(5<em>π</em>/8) = (1 - cos(7<em>π</em>/4) + 1 - cos(5<em>π</em>/4))/2
… = 1 - 1/2 (cos(7<em>π</em>/4) + cos(5<em>π</em>/4))
… = 1 - 1/2 (1/√2 - 1/√2)
… = 1
Answer:
The answer is B.You must know the lengths of two sides of the triangle, and you must also know the measures of two angles in the triangle.
Step-by-step explanation:
Answer:
Step-by-step explanation:
x+5+5=x+10=Sam's age 2x+5+5=2x+10=Nina's age 2x+10=1.5(x+10) (In five years, Nina will be 1.5 times as old as Sam. 2x+10=1.5x+150.5x=5x=10x+5=152x+5=25.
Nina:25
Sam:15
The answer is A. It's closet to 280 seeing how it is 265
