If a point is randomly selected from the area under the curve, what is the probability that it will be in the black region? A) 0.5
B) 1.0
C) 1.5
D) 2.0

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

Acircle has a circumference of 7.850 units. what is its radius?