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3 years ago

If x -1/7,evaluate x²+1/x²

Mathematics

1 answer:

SCORPION-xisa [38]3 years ago

6 0

Answer:

$given \: x = - \frac{1}{7}$

$x {}^{2} + \frac{1}{x {}^{2} }$

$( - \frac{1}{7} ) {}^{2} + \frac{1}{ ( - \frac{1}{7} ) {}^{2} }$

$\frac{1}{49} + \frac{1}{ \frac{1}{49} }$

$\frac{1}{49} + \frac{1 \times 49}{1}$

$\frac{1}{49} + 49$

$\frac{2402}{49} \: or \: 49.02$

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3 years ago

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3 years ago

in these triangles, side AB is congruent to side DF, and side BC is congruent to side FG. Determine the values of x and y

vlada-n [284]

I added a screenshot with the complete question

Answer:
x = 3
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Explanation:
1- getting the value of x:
We are given that:
side AB is congruent to side DF. This means that:
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3(2x+10) = 12x + 12
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2- getting the value of y:
We are given that:
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3 years ago

If x -1/7,evaluate x²+1/x²​

If x -1/7,evaluate x²+1/x²