You use the discriminant (b²-sqr(4ac))/2a and if sqr(4ac) inferior to 0 then use i = sqr(-1)
Answer:
¼
Step-by-step explanation:
From the question given above, the following data were obtained:
Blue (B) seed = 3
Purple (P) seed = 1
Total (S) = 1 + 3 = 4
The probability of her choosing a purple seed can be obtained as follow:
Event of purple seed, n(P) = 1
Total, n(S) = 4
Probability of purple seed, P(P) =?
P(P) = n(P) / n(S)
P(P) = ¼
Therefore, the probability of her choosing a purple seed is ¼.
Answer:
-10.5 deg
Step-by-step explanation:
Yesterday's temp = 7-1/2 deg (or 7.5 deg)
Today's temp = -3 deg
net change = today's temp - yesterday's temp
= -3 - 7.5 = -10.5 deg
