*!HELP!* Mark wants to order a pizza. Drag and drop the correct number or phrase into each box to complete the explanation for w
hich is the better deal. Round your answer to the nearest cent. Use 3.14 for π.
Donnie's Pizza Palace
Diameter (in.) : 12 18
Cost ($) : 10 20
Donnie's Pizza Palace
Diameter (in.) : 12 18
Cost ($) : 10 20
1 answer:
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Answer:
Step-by-step explanation:
We want to solve the equation:
Over the interval [0, 2π).
First, notice that this is in quadratic form. So, to make things simpler, we can let <em>u</em> = cos(x). Substitute:
Rearrange:
Factor:
Zero Product Property:
Solve for each case:
Back-substitute:
Using the unit circle: