Answer:
supplement of an angle is what must be added to that angle to get 180
51+supplement=180
minus 51 both sides
supplement=129
answer is 129
Answer:
these numbers are limited and you can make sure using a calculator
Answer:
x 
Step-by-step explanation:
:)
Write out the sum formula for sin
<span>sin(x + y) = sinxcos + sinycosx </span>
<span>Then expand sin(a + b) + sin(a - b) </span>
<span>sinacosb + sinbcosa + sinacosb - sinbcosa </span>
<span>The 2nd and 4th terms cancel and you get </span>
<span>2sinacosb</span>
Answer:
b because it just is
Step-by-step explanation:
