Substitute the values for a, b, and c into b2 – 4ac to determine the discriminant. Which quadratic equations will have two real number solutions? (The related quadratic function will have two x-intercepts.) Check all that apply. <br /> 0 = 2x2 – 7x – 9 <br />
0 = x2 – 4x + 4 <br />
0 = 4x2 – 3x – 1 <br />
0 = x2 – 2x – 8<br />
0 = 3x2 + 5x + 3

Which is an equation for the nth terms of the sequence 12,15,18,21

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)

Hey free points ! people i have a few math questions on my profile consider looking at them i have to get done in 30 mins!