10/12 = 5/6 is your answer
Multiply the two probabilities together to get the answer. 3/10 ×8/10 = 24/100 or 24 %
6 is correct for this questions answer
The discriminante :
b^2-4ac
1^2 - 4 * -2 * -28 = 1 - 224 = -223
When the discriminant (b^2-4ac) is less than 0, the equation had no real solutions.
-223<0, so, 2x^2+x-28 = 0 has no real solutions.
Hope that helps :)
Multiply length times width to find the area. 6.5x11= 71.5
