Your answer is 25/40 hope this helps ;)
Answer:
a=3,b=5
Step-by-step explanation:

so as you got it:

Answer:
i think it is a pear and apple
Step-by-step explanation:
I really hope this helps
9514 1404 393
Answer:
(-8)(1) = -8
Step-by-step explanation:
The multiplicative identity element is 1. Multiplying by 1 does not change the value. This is illustrated by ...
(-8)(1) = -8
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
∘