Angles of a triangle add up to 180° since we already have 47°, 180-47=133 combine the other sides so (15+x)+(18+4x)=133 33+5x=133 133-33=100 5x=100 100/5=20 x=20 and that's it, x is equal to 20
First take the product 2 times 32 is 64 because there are only two numbers the nth root is the square root, and the square root of 64 is 8. Therefore geometric mean of 2 and 32 is 8
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