Answer:
h ≈ 11.9
Step-by-step explanation:
Since the triangle is right we can use the cosine ratio to find h
cos24° = =
Multiply both sides by 13
13 × cos24° = h
⇒ h = 11.9 cm ( to 1 dec. place )
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1 answer:
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Answer:
The probability that the first failure occurs among the five devices is given by
(a) 9 months =
(b) 12 months=
Step-by-step explanation:
probability is given as the; number of required outcome/ total number of possible outcome.