Someone asap
how can you tell when a quadratic equation has no real solutions ?
a.) when the radicand is negative
b.) when b in the quadratic formula is is greater than the radicand
c.) when the radicand equals zero
d.) when the radicand is not a perfect square

Write two subtraction equations that are equivalent to 5 + 12 = 17.

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?