Answer:
Step-by-step explanation:
Since B is right angle, AC is hypotenuse as opposite it.
BC is opposite to angle A which is 33°.
<u>We know that:</u>
- sine = opposite / hypotenuse
<u>So we have:</u>
- sin 33° = BC / 7 ⇒ BC = 7 sin 33°
Correct choice is C
S = V*t
3.5 hrs * 4.2 mph = 14.7 mi
t = S/V
14.7 mi/ 2.8 mph = 5.25 hrs
Answer: Subtract 18 on both sides is wrong. Its supposed to be add 18 on both sides.
Step-by-step explanation:
