Haley52605 Haley52605

03-09-2018
Mathematics

contestada

The difference between the solutions to the equation x^2=a is 30. What is a? Show that your answer is correct.

Respuesta :

12-09-2018

solution:

x˄2 = a ⇒ x = ±√a

The difference between the solutions is

√a - (-√a) = 2√a = 30 ⇒ √a = 15

Therefore,

a = 225.

Answer Link

Otras preguntas

Climatology is a subspecialty of A. meteorology. B. environmental science. C. oceanography. D. marine 8.

Which 2 numbers add up to 8, but multiply to get 40?

A _____ change occurs when a substance changes phase

preserved remains have turned to what?

Government 6 expenditures include a joint federal-state insurance program for low-income persons called a. medicare. c. Medicaid. b. OSHA. d. Social Security.

2a2b3 and -4a2b3 are like terms. a. True b. False

This first Athenian reform leader established the Citizen's Assembly, forbade enslavement for debts, and made fathers responsible for seeing that their sons lea

The type of writing most often required of college students is _____. descriptive analytical expository argumentative

What is 21 divided by something =7

The ____________ of the Supreme Court presides over oral arguments, influences the direction of discussions, and decides which cases the Court will hear. a. Pr