The rule for converting sin into cos and vice versa is:
sin α = cos ( 90° - α ) or cos α = sin ( 90° - α )
In this case:
cos ( 6 x ) = sin ( 90° - 6 x )
sin ( 90° - 6 x ) = sin ( 3 x - 9°)
90° - 6 x = 3 x - 9°
90° + 9° = 3 x + 6 x
99° = 9 x
x = 99° : 9 = 11°
Answer: C ) x = 11°
So this is what my first answer was supposed to be.
Profit = revenue - cost
So if we replace the words with your equations you’ll get this
Profit = 2x -(0.17x + 75)
To make that make since I’ll explain again.
$2 x # of cupcakes sold -($0.17 cost of each cupcake made x # of cupcakes sold + $75 for additional one time charge)
2 parts brown sugar:3 cups flour
4/6 divided each side by 2 gets you 2/3
Answer:
C. 17 + 17(0.07)
Step-by-step explanation:
Take the cost of the shirt and multiply it by 0.07 for the sales tax. Then add this number to the original cost for the new cost with the sales tax included.
