harleyesch harleyesch

10-02-2017
Mathematics

contestada

Find the x-intercepts for the parabola defined by the equation below. y = 3x2 + 18x + 15

Respuesta :

wolf1728 wolf1728

10-02-2017

Using quadratic formula
x = [-18 +-sq root (324 -4 *3*15)] / 2*3
x = [-18 +-sq root (144)]/6
x1 = (-18 + 12) / 6 = -1
x2 = (-18 -12) / 6 = -30/6 = -5

Answer Link

Otras preguntas

What is the percentage increase from 108.5 to 145.4

According to the nebular hypothesis, how did most of the excess dust and gas in the solar system get removed?

list the sixth external parts of a computer system and identify which are output and which are input devices

The government’s involvement in economy serves what two purposes?

write the following measurements in longform: 1. 4.5x30 g 2. 1.99x10-8 cm

Two step equations with integers What is r/10+4=5. Please explain!

Dscribe the feelings of the narrator when he consulted medical dictionary in the british museum

Matt Kaminsky bought a Volvo that is 33∕4 times as expensive as the car his parents bought. If his parents paid $8,000 for theirs, what is the cost of Matt's ca

40+40x0+1=What is the correct answer?

Dscribe the feelings of the narrator when he consulted medical dictionary in the british museum