Fine the maximum and minimum values of the function y= -cos8x

Step-by-step explanation:

The value of cosx ranges from -1 to 1, so -cosx ranges from 1 to -1.

The minimum value is -1, and the maximum value is +1.

The number 8 in the argument does not affect the amplitude of the wave. It affects only the frequency.

In the diagram, both y = -cos8x (purple) and y = -cosx (black) range from -1 to +1, but the purple cosine curve has eight times the frequency of the black one.

4

step-by-step explanation:

6 (donuts) divided by 3 is 2.

so 2/3 means 2 times 2, which is 4/6.

you get two and your friend gets four.

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

i hope this answer you! if you have any further questions or concerns, feel free to ask! : )

step-by-step explanation:

mark brainliest!