Mathematics: In ∆abc, if a = 8.75 centimeters, c = 4.26 centimeters, and m b = 87°, what is the length of b to two decimal places?

In ∆abc, if a = 8.75 centimeters, c = 4.26 centimeters,

Ответ:

funnynunny2903

04.01.2022

Mathematics

Using law cosines:
b^2= a^2+c^2-2acCosb
= 76.56+18.14-74.55(0.05)
= 94.7 - 3.9
= 90.8
b= sqrt 90.8
b= 9.52

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Ответ:

itscheesycheedar

04.01.2022

Mathematics

You will need the law of cosines to solve it

b2=a2+c2−2a×c×cos(B)

just substitute your values

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Ответ:

KennyOaks6230

02.07.2020

Mathematics

Price of the book = $50

20% discount = 0.2 x 50 = $10

After discount, the price of the book is
$50 - $10 = $40

I have $35, so I need
$40 - $35 = $5 more

I need to borrow $5 from a friend.

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In ∆abc, if a = 8.75 centimeters, c = 4.26 centimeters, and m b = 87°, what is the length of b to two decimal places?

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