Answer:
about 72.8%
Step-by-step explanation:
2550 is about 72.8% of 3500
you find this by dividing 2550 by 3500
Notice that
• <em>π</em>/2 = <em>π</em>/3 + <em>π</em>/6
• <em>π</em>/6 = <em>π</em>/3 - <em>π</em>/6
Recall the angle sum identities for sine:
sin(<em>x</em> + <em>y</em>) = sin(<em>x</em>) cos(<em>y</em>) + cos(<em>x</em>) sin(<em>y</em>)
sin(<em>x</em> - <em>y</em>) = sin(<em>x</em>) cos(<em>y</em>) - cos(<em>x</em>) sin(<em>y</em>)
By adding these together, we get
sin(<em>x</em> + <em>y</em>) + sin(<em>x</em> - <em>y</em>) = 2 sin(<em>x</em>) cos(<em>y</em>)
==> sin(<em>x</em>) cos(<em>y</em>) = 1/2 (sin(<em>x</em> + <em>y</em>) + sin(<em>x</em> - <em>y</em>))
Now take <em>x</em> = <em>π</em>/3 and <em>y</em> = <em>π</em>/6 :
sin(<em>π</em>/3) cos(<em>π</em>/6) = 1/2 (sin(<em>π</em>/2) + sin(<em>π</em>/6))
So the blank should be filled with cos.
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Answer:
P = $8B - $136
Step-by-step explanation:
Mathematically the profit can be calculated by subtracting the cost price from the selling price
Here, the cost price is $136
Now, their selling price is obtained by multiplying the number of pieces sold by the selling price of each piece
The number of pieces of bracelets is B and they sold at $8 per piece, the selling price of all is thus $8 * B = $8B
The profit P = selling price - Cost price = $8B - $136
