Based on the figure, select all true equations. A. cos (42) = b/c
B. cos (48) = b/c
C. sin (42) = b/c
D. sin (48) = b/c
E. tan (42) = b/a
F. tan 48 = a/b

9. (y^-5)^10y^10 a. y^-60 b. y^60 c. y^-150 d. y^150 find the simplified form of each expression. 10. (4/7^5)^2 a.8/14^10 b.16/49^25 c.16/49y^10 d.8/14y^25 11. determine if the number 3.43 times 10^-6 is written in scientific notation. if not, explain. a. yes; the number is written scientific notation. b. no; the first factor is not a number between 1 and 10. c. no; it is not written as a number times a power of 10

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