Mathematics, 01.04.2021 01:00, ella3714
There are four blood types, and not all are equally likely to be in blood banks. In a certain blood bank, 49% of donations are Type O blood, 27% of donations are Type A blood, 20% of donations are Type B blood, and 4% of donations are Type AB blood. A person with Type B blood can safely receive blood transfusions of Type O and Type B blood.
What is the probability that the 4th donation selected at random can be safely used in a blood transfusion on someone with Type B blood?
(0.31)3(0.69)
(0.51)3(0.49)
(0.69)3(0.31)
(0.80)3(0.20)
Answers: 3
Mathematics, 22.06.2019 07:20, Sariyahgaskin
The 40th parallel of north latitude runs across the united states through philadelphia, indianapolis, and denver. at this latitude, earth’s radius is about 3030 miles. the earth rotates with an angular velocity of latex: \frac{\pi}{12} π 12 radians (or 15°) per hour toward the east. if a jet flies due west with the same angular velocity relative to the ground at the equinox, the sun as viewed from the jet will stop in the sky. how fast in miles per hour would the jet have to travel west at the 40th parallel for this to happen? show your work and explain your process.
Answers: 2
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