What is the largest number c such that 2x^2 + 5x + c = 0 has at least one real solution? Express your answer as a common fractio
2 answers:
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Answer:
The percent price reduction was 15.83%
Step-by-step explanation:
we know that
In this problem
$379 represent the 100%
so
using proportion
Find out what percentage represent the difference between the original price and the final price
Answer:
a) P(2)=0.270
b) P(X>3)=0.605
c) P=0.410
Step-by-step explanation:
We know that customers arrive at a grocery store at an average of 2.1 per minute. We use the Poisson distribution:
a) In this case:
Therefore, the probability is P(2)=0.270.
b) In this case:
Therefore, the probability is P(X>3)=0.605.
c) We know that two customers came in in the first minute. That is why we calculate the probability of at least 5 customers entering the other 2 minutes.
In this case:
Therefore, the probability is P=0.410.