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g100num [7]
3 years ago
14

Which value of x makes the numerical sentence true? 25^ 1/2 × 5 ^–3 = 5 ^x

Mathematics
2 answers:
Elenna [48]3 years ago
5 0
5^-3=0.008
1/2=0.5
0.5*0.008=0.004
5/0.004=1250
Levart [38]3 years ago
5 0
<span>25^1/2 × 5^–3 = 5 ^x
(5^2)1/2 </span>× 5^–3 = 5^x
5^1 × 5^–3 = 5^x
5^-2 = 5^x
-2 = x
or 
x = -2

answer
x = -2 <span>makes the numerical sentence true</span>
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