Answer:
BC ≈ 19.4 cm
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos71° =
=
=
( multiply both sides by BC )
BC × cos71° = 6.3 ( divide both sides by cos71° )
BC =
≈ 19.4 cm ( to 3 significant figures )
Answer:
52 units squared
Step-by-step explanation:

The two correct answers are that even numbers represent Jim and odd numbers represent Rob, or odd numbers represent Jim and even numbers represent Rob.
Answer:
60 gallons
Step-by-step explanation:
40+1/2*40=40+20=60
Product of the sum of 1/2 and -3/4 and difference of -5/6 and 13/8
= (1/2-3/4)×(-5/6+13/8)
= -1/4×19/24
= -19/96