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konstantin123 [22]
2 years ago
14

Evaluate 1/x^-2 for x= 7. -49 49 1/49 Please help And thx but HURRY

Mathematics
2 answers:
Oxana [17]2 years ago
8 0

Answer:

49

Step-by-step explanation:

<u />

Simplify the expression such that the variable has a positive exponent.

  • \frac{1}{x^{-2} }
  • x² [negative exponent is taken to the other side]

Substitute x = 7.

  • (7)²
  • 49
ella [17]2 years ago
5 0
Answer: 49

Step-by-Step Explanation:

As we can see, we have been given a negative exponent for “x”. Hence we have to take the reciprocal which would be x squared.


Therefore, x = 7
= x^2 = 7 * 7
= 49
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