3 years ago

Please help me out guys, Thank you.I am very poor at mathematics

Mathematics

1 answer:

Lesechka [4]3 years ago

7 0

Answer:

Step-by-step explanation:

Given the expression

x + 1/x = 9

Square both sides

(x + 1/x)^2 = 9^2

x^2 + 2x(1/x)+ (1/x)^2 = 81

x^2 + 2 + 1/x^2 = 81

x^2+1/x^2+2 = 81

x^2+1/x^2 = 81-2

x^2+1/x^2+ = 79

Hence the value of x^2+1/x^2 is 79

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3 years ago

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3 years ago

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4 years ago

2. Which of these best describes d, the diameter of a circle?

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Answer:

Step-by-step explanation:

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3 years ago

A random sample of dogs at different animal shelters in a city shows that 10 of the 55 dogs are puppies. The city's animal shelt

inysia [295]

Answer: The number of dogs in all of the city's animal shelters is puppies = 270

Step-by-step explanation:

Given: A random sample of dogs at different animal shelters in a city shows that 10 of the 55 dogs are puppies.

The city's animal shelters collectively house 1,485 dogs each year.

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7 0

3 years ago

Please help me out guys, Thank you.I am very poor at mathematics​

Please help me out guys, Thank you.I am very poor at mathematics