Mattie uses the discriminant to determine the number of zeros the quadratic equation 0 = 3x2 – 7x + 4 has. which best describes the discriminant and the number of zeros? the equation has one zero because the discriminant is 1. the equation has one zero because the discriminant is a perfect square. the equation has two zeros because the discriminant is greater than 0. the equation has no zeros because the discriminant is not a perfect square.
a = 3, b = -7, c = 4;
Now find the discriminant:
Discriminant = 1.
As the discriminant is greater than 0 (which in this case is 1), the equation has two zeros (as mentioned in the above conditions).
d. millimeters per hour.
we are given that,
carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.
since, according to the options, we see that,
water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.
we get that, the water can be measured by 'millimeters per hour'.
hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.
5050 i think