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emmasim [6.3K]
3 years ago
5

A boy throws a baseball across a field. The ball reaches its maximum height, 18 meters, after 1 second. After approximately 2.3

seconds, the ball lands on the ground. The ball’s motion can be modeled using the function f(x) = –10x2 + 20x + 8. What is the height of the ball 1.5 seconds after it is thrown? A. 11.7 meters B. 13.8 meters C. 15.5 meters D. 17.5 meters
Mathematics
2 answers:
Mkey [24]3 years ago
7 0

Answer:

C is the answer

Step-by-step explanation:

Mashcka [7]3 years ago
5 0
Since the ball will reach the maximum height of 18 meters after 1 second, meaning after 1 second it will start to go down. So will expect that the height will be lower than 18 m after 1.5 s.
f(x) = –10x2 + 20x + 8
f(x) = –10(1.5^2) + 20(1.5) + 8
f(x) = 15.5 m
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Answer with Step-by-step explanation:

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3 years ago
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lbvjy [14]

Answer:

a) 504

b) 56

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Step-by-step explanation:

Data provided in the question:

There are nine golf balls numbered from 1 to 9 in a bag

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a) 3-digit numbers that can be formed

= ^nP_r

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r = 3

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b)  3-digit numbers start with the digit 1

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3 years ago
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