The original price of a video game is $45. What is the sale price after a 25% discount.
1 answer:
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Answer: ( X- k )(3x2 - 4x + 7) + 1
Step-by-step explanation: Please find the attached files for the solution
Answer:
Step-by-step explanation:
Start by determining the simpler angle (or, the complement of the highlighted angle in red on your image). The cosine of that angle is
Now, back to the actual red-circled angle. That one is going in the negative direction and ends up in the same position on the unit circle. Since cosine is an even function, its value is the same whether you evaluate at an angle theta, or its complement 2pi-theta. So, the final answer is: