Inzanity Inzanity

23-04-2018
Mathematics

contestada

Which is a zero of the function defined by
2x² + x - 45?

A. -9
B. -5
C. 5
D. 9

Show some work

Respuesta :

MrGumby MrGumby

24-04-2018

B.

You can get this by using the quadratic equation, which I listed below.

[tex] \frac{-b +/- \sqrt{ b^{2} -4ac} }{2a} [/tex]

With a = 2, b = 1, c = -45

Answer Link

Otras preguntas

The length of each side of a rhombus is 10 and the measure of an angle of the rhombus is 60. Find the length of the longer diagonal of the rhombus.

Fossil fuels are hydrocarbons comprised of primarily hydrogen and nitrogen, and some sulfur, carbon, oxygen, and mineral matter. a. True b. False

Political speech enjoys the greatest protections under of the first amendment of any classification of speech. a. True b. False

Infer why scientists hypothesize that chemical events preceded the origin of life on earth

Please Help! answer question in pic.

Pillar of New York where can i find information on this subject?

If the populatiom of a particular country is growing at 1.7% compunded continuously, how long will it take the population to triple?

Which sentence is punctuated correctly? A. As a result, of his failure to study, Teddy promptly failed his algebra exam. B. As a result of his failure to

my favourite singer has seven...the singer is a girl...she sings hello...and she starts with an A and ends with an Ewho is it?

A person who overeats at his or her family's house over the holidays is most likely eating because of