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natta225 [31]
3 years ago
10

Harrison plays a game in which he uses a net to catch balls that are randomly launched from holes in the ground. The height of o

ne ball after t seconds is represented by the function f(t) = –16t2 + 20t.
After how many seconds does the ball return to the ground? Round to the hundredths place as needed.
Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
7 0
3 sishsusbsusbsusnsjsnsn
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An exceptionally bright high school student has applied for two scholarships: a merit scholarship and an athletic scholarship. H
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Answer:

a) 0.70

b) 0.82

Step-by-step explanation:

a)

Let M be the event that student get merit scholarship and A be the event that student get athletic scholarship.

P(M)=0.3

P(A)=0.6

P(M∩A)=0.08

P(not getting merit scholarships)=P(M')=?

P(not getting merit scholarships)=1-P(M)

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P(not getting merit scholarships)=0.7

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b)

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P(getting at least one of two scholarships)=P(M)+P(A)-P(M∩A)

P(getting at least one of two scholarships)=0.3+0.6-0.08

P(getting at least one of two scholarships)=0.9-0.08

P(getting at least one of two scholarships)=0.82

The probability that student gets at least one of two scholarships is 82%.

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3 years ago
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