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Gala2k [10]
3 years ago
9

What is the area of

Mathematics
2 answers:
Otrada [13]3 years ago
5 0
The formula to find the area is length times width so multiply 2 into 6 and your answer should be 12
Inessa05 [86]3 years ago
4 0
I hope this helps you




Area=2.6


Area=12
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Jeb is the local tennis pro at the country club, and he needs to know at what height the tennis ball needs to be when he hits it
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Answer:

The height from ground, at which Jeb needs to hit the ball is 7.8 meters

Step-by-step explanation:

The given parameters are;

The distance away the tennis ball is hit = 20 meters;

The height of the tennis net = 0.3 m

The distance from the net the ball lands = 4 meters

The time the ball takes to land from the 0.3 m net height is given as follows;

t = √(h/(1/2×g)) = √(0.3/(1/2 × 9.8)) ≈ 0.2474

t ≈ 0.2474 seconds

The speed of the ball = Distance/Time = 4/0.2474 ≈ 16.166

The speed of the ball ≈ 16.166 m/s

The time it takes the ball to reach the net = 20/16.166 ≈ 1.24

The time it takes the ball to reach the net, tₓ ≈ 1.24 seconds

The height, hₓ the ball falls in 1.24 seconds is given as follows;

hₓ = 1/2·g·tₓ² = 1/2 × 9.8 × 1.24² = 7.5

The height, hₓ the ball falls in 1.24 seconds = 7.5 m

The height the ball falls in the time taken to reach the net from 20 meters = The height, hₓ the ball falls in 1.24 seconds

Therefore, the height at which Jeb needs to hit the ball = The height the ball falls in the time taken to reach the net from 20 meters + The height of the net = 7.5 m + 0.3 m = 7.8 m

The height at which Jeb needs to hit the ball = 7.8 m

4 0
3 years ago
Explain how you know that the sum of 12.6,3.1, and 5.4 is greater than 20
ozzi
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Step-by-step explanation:

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Step-by-step explanation:

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