Which list shows the steps in the correct order? Review the steps in the derivation of the tangent sum
identity. The steps are not in order
O I + II → IV – III
1
sin(x + y)
cos(x + y)
O I - IV - || - |
III - | - || - IV
III | → IV + ||
II
sin (x) cos (y) cos(x) sin(y)
+
cos (x) cos(y) cos (x) cos())
cos (x) cos(y) sin (x) sin (9)
cos (x) cos (y) cos (x) cos()
-
=
tan (x) + tan (y)
1 -tan (x) tan (y)

Atriangle has side lengths of 15 inches and 30 inches. it also has angles that measure 45º and 20º. which of the following identifies the possible third angle of the triangle? a. 15 in., 65º b. 45 in., 65º c. 17 in., 115º d. 14 in., 115º

6.(q^9)^2 a. 2q^18 b. q^18 c. q^81 d. q^11 7.(6q^6)^-4 a. 6q^1296 b. 1296q^2 c. 1/1296q^24 d. 6q^-24 8. what is the value of 12x^-3 y^-1 for x = -1 and y = 5? a. -12/5 b.-10 c.-0 d.5/12 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

Given the box plot, will the mean or the median provide a better description of the center? box plot with min at 10.5, q1 at 11.5, median at 12.5, q3 at 13.5, max at 15