atc1921 atc1921

02-09-2016
Mathematics

contestada

what two numbers multiply to get 30 also add up to get -4????

Respuesta :

nobillionaireNobley nobillionaireNobley

04-09-2016

Let the two numbers be x and y
xy = 30 . . . . . (1)
x + y = -4 . . . . .(2)
From (2), x = -4 - y . . . . . (3)
Putting (3) into (1), we have:
(-4 - y)y = 30
-4y - y^2 = 30
y^2 + 4y + 30 = 0
y = -2 + i√26 and x = -2 - i√26

Answer Link

Otras preguntas

find the value of x in the triangle shown belowHELP ASAP!!!!!

Hayato watches a piece of gum Stuck to a clown’s bicycle tire as a steadily rotates, making 40 revolutions per minute. He started watching the game when it was

please help ASAP In which location would an observer experience wind? A. location A B. location B C. location C D. location D

What is the nearest integer to90

What agreement let to the waithdrawal of federal troops from the south

Labor leaders were targeted by the Espionage and Sedition Acts because they a. demanded better conditions for workers, even during a war crisis. b. questioned

Which one of the following methods predicts the amount by which the value of a firm will change if a project is accepted? Multiple Cholce Net present value Di

Assume the economy faces high unemployment but stable prices. Which combination of government policies is most likely to reduce unemployment?

The lowest body temperatures occurs between— A.11pm-3am B.3pm-6pm C.6am-11am D.8am-10am

Oxygen gas is formed when two oxygen atoms share electrons. Which kind of compound is oxygen gas? A) Mesonic B)Covalent C)ionic D)polyatomic ion