Cos(70° )cos(20° )+sin(70° )sin(20° )=cos(___°)?
1 answer:
Answer:
Step-by-step explanation:
Sum and Difference Formula
cos( U +/- V ) = cosU*cosV -/+ sinU*sinV
cos( U - V ) = cos(70)cos(20) + sin(70)sin(20)
cos( U - V ) = cos (70 - 20)
cos( 50 ) = .642788
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Answer: 0.648637
Explanation:
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Answer:
52.3272727...
the 27 at the end is repeating
Answer:
x=32 so one solution only
Step-by-step explanation:
6(x-8)+10=5x-6
6x-48+10=5x-6
6x-38=5x-6
x-38=-6
x=32
Therefore, the equation only has one solution which is x=32
Answer:
But on what question??
Step-by-step explanation:
1.2 hours? i think it is 6 divided by 5 or something??? idk
