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Answered by
26
Step-by-step explanation:
1)
x=√7/5
5/x=p√7
p=5/√7x
p=5/√7(√7/5)
p=25/7
2) (-1/27)^-2/3
((-1/3)^3)^-2/3
(-1/3)²=1/9
3) 2^4/3
option a
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Answered by
0
Answer:
1. 25/7(b)
2. 9(c)
3. ∛2⁴(a)
Step-by-step explanation:
1) x=√7/5 and 5/x=p√7
p√7=5/√7/5
=5×5/√7×√7
=25/7
2) (-1/27)⁻²/₃
= (-1/3)³ˣ⁻²/³
= (-1/3)⁻²
= (-3/1)²
= -3×-3
= 9
3) (2)⁴/³
= (2⁴)¹/³
= ∛2⁴
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