getse61
26.06.2020 •
Mathematics
Which expression is a perfect cube?
12x12y18
O 12x27,125
O 64x15y18
64x27
27,125
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Ответ:
D: 64 x^27 y^125
Step-by-step explanation:
You can use either a calc or your knowledge of cube roots. I will be using knowledge.
You can automatically rule out a and b as if you take the cube root of 12, no whole number comes out. You are left with c and d. Option D is correct because the cube root of 64 is a whole number (4), the cube root of 27 is a whole number (3), and the cube root of 125 is also a whole number(5).
Ответ:
right angle
Step-by-step explanation:
it is a 90 degree angle