demeria92 demeria92

02-12-2021
Mathematics

contestada

What are the solutions of the equation 9x4 - 2x2 - 7 = 0? Use u substitution to solve.

What are the solutions of the equation 9x4 2x2 7 0 Use u substitution to solve class=

Respuesta :

Gotenks99 Gotenks99

02-12-2021

9t +7 = 0

t-1 =0

solve for both giving

t = -7/9

t = 1

then we have to plug that back in to u which is x^2

so x^2 = (-7/9)^2 = -1

x^2 = 1

if any doubt leave a comment

Ver imagen Gotenks99

Ver imagen Gotenks99

Ver imagen Gotenks99

Ver imagen Gotenks99

Ver imagen Gotenks99

Answer Link

Otras preguntas

Trisha graphed the relationship between yards and feet, with yards along the x-axis and feet along the y-axis. The relationship is proportional. Which statement

Evaluate the expression when r = 8.2 and s = –3.7. r – 2s a. –22.94 b. 0.8 c. 4.5 d. 15.6

On Monday, David’s bank balance was $97. On Tuesday, his bank balance had changed by $56. Which amount could be the correct amount in David’s bank balance on T

Free-market economies use ______ to distribute goods, services, and resources A.Price B. Command C.Government

five ninths times the difference of f and 32

Yo_________muy inteligente. Answer for Blank 1:

DNA replication occurs A. so that a cell can grow. B. so that the cell can divide. C. so that proteins can be made. D. so that mutations can be removed.

What is the area of a rectangle with vertices at (4, 3), (11, 3), (11, 9), and (4, 9)?

Earth's greenhouse effect is most directly related to the _____ cycle. a. argon b. carbon c. oxygen d. nitrogen

A synonym is a word that's A. similar in meaning. B. defined in a thesaurus. C. opposite in meaning. D. pronounced the same.