It's 30. It's primary factors are : 2,3 and 5.
Option c is correct formula
answer; do 1.8 minus 1.3. when you get your answer which is five. then add it to the seven that should equal twelve. the tree is twelve meters taller than the girl
Answer:
2x² + x - 1 = 0
a= 2 b= 1 c= -1
x = [ -b +- sqr rt( b^2 -4ac) ] / 2*a
x = -1 +- sqr rt (1 - 4 *2*-1) / 4
x1 = [ -1 + (sqr rt (1 +8)) / 4
x1 = ( -1 + sqr rt (9)) / 4
x1 = (-1 + 3) / 4
x1 = .5
x2 = (-1 -3) / 4
x2 = -4 / 4
x2 = -1
And to check that answer: http://www.1728.org/quadratc.htm
Step-by-step explanation:
Answer:
I hope you understood! Good luck with the rest of your class :)
