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23.01.2020 •
Mathematics
The domestic postage rate for first-class letters weighing 12 oz or less is $0.37 for the first ounce and $0.23 for each additional ounce or part of an ounce. which of the following is a correct cost?
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Ответ:
To find the cost of 12 oz:
first oz = $0.37
Every oz after = $0.23
12 - 1 = 11
First oz = $0.37
11 × .23 = 2.53
2.53 + 0.37 = 2.9
A 12 oz package in first class would cost $2.90.
Hope I helped you! :)
PS. Next time please add the answer choices! :)
Ответ:
r = 3 sin 2θ
Find: Graph that matches the polar equation Solution:
Use the polar graph type in the graphing calculator and enter the following values: 3sin (2 theta). Please see the attached image for the answer. The graph would look like butterfly wings.