Is the sum of 3√2 and 4 √2 rational or irrational? Explain your answer.
1 answer:
The answer is irrational. Any irrational number doubled is still irrational.
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A2= 1
a3=-3
a4=-7
the common difference is -4
AB=6cm AC=12cm
AC² = AB + BC²
12² = 6² + CB²
CB² = 12² - 6²
CB² = 144 - 36
CB² = 108
CB = √ 108 cm.
sin 55° = CB / CD
0.81915 = √108 / CD
CD = 10.392 / 0.81915
CD = 12.686 cm
Add then I would divide it
The answer is -14 . i think
Answer: x=25 work below :)
