4. If the determinant delta of a quadratic equation is positive, the equation has two real roots. If the determinant is negative, it has two imaginary roots. In this case, delta=b^2-4ac=(-1)^2-4*1*4=-15. Therefore, this equation has two imaginary roots.
Answer:
B) AB is parallel to CD, but AD is not parallel to BC.
Step-by-step explanation:
The options are:
A) AD is parallel to BC, but AB is not parallel to CD.
B) AB is parallel to CD, but AD is not parallel to BC.
C) AB is parallel to CD, and AD is parallel to BC.
D) AD is not parallel to BC, and AB is not parallel to CD.
AB and CD have the same slope, so they are parallel.
BC and AD have different slopes, so they are not parallel.
Therefore, the answer is B.
Answer:
0
Step-by-step explanation:
Answer: 0.1008188
Step-by-step explanation:
The question will usng the poisson distribution formula:
Given :
Mean(λ) number of occurrence in a given interval = 3
P(X=x) = Probability of exactly x occurrence in a given interval
Number of desired occurence(x) = 5
P(X=x) = [(λ^x) * (e^-λ)] / x!
Where ; e = base of natural logarithm = 2.7182818
P(X=5) = [(3^5) * (e^-3)] / 5!
P(X=5) = [(243) * (0.0497870)] / 120
P(X=5) = [12.098257] / 120
P(X=5) = 0.1008188
follow order of operations:
3+16/4 = 3+4 = 7
