A) K=1/2C-3
K+C=18
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Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identities
cot A =
, tanA =
, cscA =
, secA = 
Consider the right side

= 
= 
=
× sinAcosA ( cancel sinAcosA )
= cos²A - sin²A
= cos2A
= left side ⇒ verified
Answer:
164 ft squared
Step-by-step explanation:
<em>it increases 3° each hour</em>
3*2= 6
6° after 2 hours
3*3= 9
9° after 3 hours
3*6= 18
18° after 6 hours