39 40 41 40) Solve for the value of c. *OA. 9.44OB. 8.44C. 7.44OD. 6.4441) Determine the measure ofZA.O A. 27.27°OB. 37.88°O C. 173°D. 137° 39) Which of the followingformulas shows the Law ofcosines?O A. c^2=a^2+b^2-4ac+cos AOB. c^2=a^2+b^2-2ab (cos C)OC. c^2=a^2-b^2-2ab (cos C)OD. (cos A)/a=(cos B)/bFOR ITEMS 40 - 42.Aنb = 975⁰=?a=6B

According to cosine rule if two sides of the triangle (a and b) and angle (θ) between them is given…

39) Which of the following formulas shows the Law of cosines? O A. c^2=a^2+b^2-4ac+cos A OB. c^2=a^2+b^2-2ab (cos C) O C. c^2=a^2-b^2-2ab (cos C) OD. (cos A)/a=(cos B)/b FOR ITEMS 40 - 42. b=9 A C 75% a = 6 B

39) Which of the following formulas shows the Law of cosines? O A. c^2=a^2+b^2-4ac+cos A OB. c^2=a^2+b^2-2ab (cos C) O C. c^2=a^2-b^2-2ab (cos C) OD. (cos A)/a=(cos B)/b FOR ITEMS 40 - 42. b=9 A C 75% a = 6 B

An Introduction to Physical Science

14th Edition

ISBN:9781305079137

Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Chapter13: Chemical Reactions

Section: Chapter Questions

Problem 25SA

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Question

39 40 41

40) Solve for the value of c. *
OA. 9.44
OB. 8.44
C. 7.44
OD. 6.44
41) Determine the measure of
ZA.
O A. 27.27°
OB. 37.88°
O C. 173°
D. 137°

39) Which of the following
formulas shows the Law of
cosines?
O A. c^2=a^2+b^2-4ac+cos A
OB. c^2=a^2+b^2-2ab (cos C)
OC. c^2=a^2-b^2-2ab (cos C)
OD. (cos A)/a=(cos B)/b
FOR ITEMS 40 - 42.
A
ن
b = 9
75⁰
=?
a=6
B

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