Answer:
? = 32.20422
Step-by-step explanation:
We know the adjacent side and the hypotenuse
cos ? = adj / hyp
cos ? = 33/39
cos ? = 11/13
Taking the inverse cos of each side
cos ^ -1( cos ?) = cos^-1(11/13)
? = 32.20422
Answer:
48
Step-by-step explanation:
C^2 - 10c = 0
c^2 - 10c + 25 = 25
(c - 5)^2 = 25
c - 5 = sqrt 25
c = 5 (+-) sqrt 25
c = 5 (+-) 5
c = 5 + 5 = 10
c = 5 - 5 = 0
solutions are 0,10
Answer:
Step-by-step explanation:
(a)
(b)
Answer:
letter D. 19
Step-by-step explanation:
Since 71° is less than 90, we can express this in terms of a cofunction
sin (0) = cos(90 - 0)
sin(71) = cos(90 - 71)
sin(71) = cos(19)
