Sal is participating in a charity walk. The distance Sal walks, in kilometers, is proportional to the number of hours he spends
walking.
Which statements are true about the distance Sal walks?
Select each correct answer.
Which statements are true about the distance Sal walks?
Select each correct answer.
1 answer:
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Answer:
+120/169 or -120/169
Step-by-step explanation:
- let
where, alpha is some angle that satisfies the assumed condition.
- so,
[ taking cos to the other side or applying cos on both sides]
- now, substitute this in the given expression
as sin =
[by general trigonometry formula: ]
so if , we can get sin
from the above formula as + or - 12/13
(because, after taking square root on both sides we keep + or -]
- as, sin
[by general trigonometry formula]
- here, now
so, the final value can be 120/169 or -120/169.