The variable z varies jointly with x and y and inversely with v and w. Using the constant of variation,k, from the last problem,
find z when x=-1, y=10, v=6, and w=14
1 answer:
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Answer:
C
Step-by-step explanation:
using the cosine ratio to find p
cos 45° = =
cross- multiplying gives
p × cos45° = 6 → [ cos 45° = ]
p × = 6
multiply both sides by
⇒ p = 6 ( third option on list )
ANSWER
EXPLANATION
The law of cosine is given by the formula:
From the diagram,
a=17, b=8, c=16
We substitute the given values into the formula to obtain:
EXPLANATION
The law of cosine is given by the formula:
From the diagram,
a=17, b=8, c=16
We substitute the given values into the formula to obtain: