Select the correct answer.
1 answer:
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Answer:
60 feet
Step-by-step explanation:
The height, h (in meters), of the object launched from a platform is represented by the equation
where x is the time (in seconds) passed after the launch.
The time of launch is (0 seconds passed after the launch)
Substitute to find the height:
Answer:
Let x be the percentage score he got in fifth test,
According to the question,
His score in first, second, third and fourth test are 80%, 84%, 76% and 77% respectively,
Thus, the average of his total score in the five test,
=
But, Again according to the question,
The average of the five grades as greater than or equal to 80%
That is,
⇒
⇒
⇒
Thus, the least score he can get in the fifth test is 83.