abi12072002 abi12072002

24-01-2017
Mathematics

contestada

The sum of a number and its reciprocal is 2.9. Find all possible values of the number.

Respuesta :

Аноним Аноним

24-01-2017

x + 1/x = 2.9

x^2 + 1 = 2.9x
x^2 - 2.9x +1 = 0
(x - 0.4)(x - 2.5) = 0

x - 0.4 = 0 so x = 0.4
x - 2.5 = 0 so x = 2.5
answer: x = 0.4 and x = 2.5

Answer Link

Otras preguntas

3/11 as a decimal using long division

How has censorship affected democratic growth in Russia? A) The freedom of speech granted in the constitution has been repressed B) Private business has become

write a division equation that has a solution of 42

What is the process that results in new species?

45% of 20 is what number

What is the oxidation state of chlorine in ClO2?

Excerpt from Julius Caesar. By William Shakespeare What is the effect of the metaphor in line 49 on page 4? A. It communicates Anthony's deep sorrow at Caesar

Which transformation below preserves similarity between the preimage and image, but does not preserve congruence? a) reflections b) rotations c) translations d)

I am greater than 15 and less than 40. if you double me, I become a number that ends in 0. One-fifth of me is equal to 5. Who am I?

How were Herbert Hoover and fdr alike and different