<span> (3x</span>² <span>+ 8) - (2x</span>² <span>+ 1)
= </span>3x² + 8 - 2x² - 1
= 3x² - 2x² + 8 - 1
= x² + 7
multiplicative inverse is a number which when multiplied by x fields the multiplicative identity , 1 . The fraction is a/b is b/a , for a real number , divide 1 by the number
Let wind speed = x mph
when she rode 2 miles against the wind we have:-
speed = distance / time so
20 - x = 2 / t -------(1) where t is the time she took.
when riding with the wind we have
20 + x = 3 / t--------(2) adding equations (1) and (2):-
40 = 2/t + 3/t
40 = 5/t
t = 5/40 = 1/8 hr
x = 20 - 2 / 1/8 = 20 - 16 = 4
Wind speed was 4 mph Answer
3/2 is the correct answer for your problem
To find the x-intercept, substitute in 0 for y and solve for x. To find the y-intercept, substitute in 0 for and solve for y. <em>x-intercept(s): (2,0)</em> <em>y-intercept(s): (0,−10)</em>