deb9386
deb9386
06-04-2015
Mathematics
contestada
2x^2 -7= 74 please show all work
Respuesta :
konrad509
konrad509
06-04-2015
[tex]2x^2-7=74\\ 2x^2=81\\ x^2=\dfrac{81}{2}\\ x=-\sqrt{\dfrac{81}{2}} \vee x=\sqrt{\dfrac{81}{2}}\\ x=-\dfrac{9}{\sqrt2} \vee x=\dfrac{9}{\sqrt2}}\\ x=-\dfrac{9\sqrt2}{2} \vee x=\dfrac{9\sqrt2}{2}}\\[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 26+ )
Otras preguntas
What is the greatest common factor of 36 and 25
What is most likely to result immediately after a rainforest in Brazil is clear-cut?
A has the coordinates (-4,3) and B has the coordinates (4,4). If Do1/2 (x,y) is a dialation of ABC, what is true about the image A’B’C? Check all that apply
HELP ASAP PLEASE THIS IS PART OF MY GRADE I DUNNO WHAT TO DO
5. The chart below shows the dates of eclipses in the years 2006 and 2007. What is the best explanation for the frequency of eclipses? Date March 14, 2006 March
What does it mean when a cell is haploid? Please help me hurry
Patty went to the shopping mall at 11:30 A.M. She shopped for 25 minutes. She spent 40 minutes eating lunch. Then she met a friend at a movie, At what time did
Tony had 2/3 of a pound of strawberries. Tony let his friend Larry eat 3/8 of the strawberries. How many pounds of strawberries did Larry eat?A.1/3B.1/4C.2/3D.2
Jenna missed 2 out of her last 10 free throws. What is the experimental probability that Jenna will miss her next free-throw attempt?
[tex] - 1 + - 2[/tex]
