23-02-2016
Mathematics

contestada

h n I g. x V I .. Bi h H- . .

h n I g x V I Bi h H class=

Respuesta :

23-02-2016

[tex] x^{2} =169\\\\\sqrt{x^2} =\pm\sqrt{169}\\\\x =\pm \sqrt{169}\\\\x =\pm 13\\\\\boxed{\bf{x = 13}}\\\boxed{\bf{x=-13}}[/tex]

Answer Link

Billymkhoi Billymkhoi

23-02-2016

x^2= 169
⇒ x^2 -169= 0
⇒ x^2- 13^2= 0
⇒ (x-13)(x+13)= 0
⇒ x-13= 0 or x+ 13= 0
⇒ x= 13 or x= -13

The correct answer is 13 and -13.

Answer Link

Otras preguntas

Explain how density is involved in convection.

Select all choices that apply. Mark each statement if it describes Babylon during Nebuchadnezzar's reign. A. It had a busy harbor on the banks of the Euphrates

How many phosphate bonds are responsible for the high energy content of ATP? A) one B) two C) three D) four

Which personal pronoun correctly completes the sentence? The pitcher for our team will be either __________ or Jake. A. him B. his C. he

What was a major obstacle to drafting a new constitution at the Constitutional Convention of 1787?

8. Which sentence has proper parallel structure? a. The proposal affects three groups: students, parents, and teachers. b. We know who supports us, our oppo

A piece of circular bread has a diameter of 11 in. What is the approximate area of this piece of bread? Use 3.14 to approximate pi and round your answer to the

How many water molecules (H2O) can be produced from 6 molecules of hydrogen gas (purple) reacting with 6 molecules of oxygen gas (turquoise)? Which reactant is

Liam observed that the tallest player on his baseball team was 55 in. tall. He wrote the inequality h ≤ 56 to represent the possible heights of his teammates. W

Why does a light go out when you turn off the wall switch? A. The switch changes the direction of the flow of electrons. B. The switch causes a break in the cir