Mathematics: Assignmei Sue, an experienced shipping clerk, can fill a certain order in 7 hours. Jim, a new clerk, needs 11 hours to do the same job. Working together, how long will it take them to fill the order? START HEF Students e Text Study Plai Gradeboo Tools fors Multimed Purchase Discussion Course To

∠A=26º∠B=137º∠C=17ºStep-by-step explanation:We can use the Law of Cosines because we have all 3 side lengths.cosA = cosA=28^2+12^2-18^2 / 2(28)(12)cosA=604/672cos-1(604/672angle A ≈ 26ºcosB = cosB=-316/432cos-1(-316/432angle B ≈ 137º26+137=163180-163=17angle C ≈ 17º...

Assignmei Sue, an experienced shipping clerk, can

Ответ:

igtguith

10.07.2022

Mathematics

∠A=26º

∠B=137º

∠C=17º

Step-by-step explanation:

We can use the Law of Cosines because we have all 3 side lengths.

cosA = b^2+c^2-a^2/2bc

cosA=28^2+12^2-18^2 / 2(28)(12)

cosA=604/672

cos-1(604/672

angle A ≈ 26º

cosB = c^2+a^2-b^2/2ca

cosB=-316/432

cos-1(-316/432

angle B ≈ 137º

26+137=163

180-163=17

angle C ≈ 17º

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Assignmei Sue, an experienced shipping clerk, can fill a certain order in 7 hours. Jim, a new clerk,
needs 11 hours to do the same job. Working together, how long will it take them to fill the
order?
START HEF
Students
e Text
Study Plai
Gradeboo
Tools fors
Multimed
Purchase
Discussion
Course To

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