Answer:
I think It is 7
Step-by-step explanation:
<span>f x=0 ==>x^4+400=0+400=400</span>
Answer:
#3 is 40
#4 is 90
Step-by-step explanation:
Answer:
-2 + × = y
Step-by-step explanation:
I think this is the answer because it's asking for an expression which this would be one.
Either or can be used with any triangle...I personally find the law of sines is often more compact as in this case we can just say;
(sin115)/18=(sin40)/c (with no need for b or B as would be needed with the law of cosines...)
c=18(sin40)/(sin115)
c≈12.77
