Answer:α
=
71
°
:
explain:
From trigonometry we have:
cos
α
=
7
21
7
=
21
cos
(
α
)
and:
α
=
a
r
c
cos
(
7
21
)
=
70.5
≈
71
∘
Step by Step:
(z^2 -2z)(10z-20)
z(z-2)+10(z-2)
(z+10)(z-2)
Hope this helps.
Answer:
12 (the third one is the greatest common factor of 120 and 84)
Answer:
bbbbbbbbbbbbbbbbbbbbbbbbbbbb
Step-by-step explanation:
