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1 year ago

Name the property which justifies the following conclusion:

Mathematics

1 answer:

sineoko [7]1 year ago

4 0

Answer:

A) Reflexive Property of Equality

Step-by-step explanation:

If you look at your reflection in a mirror, you see yourself! Likewise, by the Reflexive Property, any number is its own mirror image. Any number (such as a real number) is equal to itself!

What this means is that any number is the answer as no number is given. It could be 3m = 3n, 10m = 10n, or 85m - 85n as long as the number of "m" is the same to the number of "n."

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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

suter [353]

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

Please help!! 4 and 7 is a wrong answer.

Marta_Voda [28]

the answer is A but im just guessing ya know?

4 0

3 years ago

Read 2 more answers

What is 1/8 as a percent and how did you get it. Also, what is 2/3 as a fraction and how did you get it.

Vesnalui [34]

This is my work. Also 2/3 is a repeating decimal so it’s actually 0.6...

4 0

3 years ago

Find the axis of symmetry of the parabola below A-Y=2 B-X=2 C-X=1 D-Y=1

victus00 [196]

The axis of symmetry is given by the line x = a (where a is equivalent to the x-value of the turning point of the parabola) and can be viewed as the line about which the parabola is symmetric; in this case, the parabola has an axis of symmetry of x = 2, thus the answer is B

8 0

3 years ago

Please help will give brainliest

omeli [17]

H = 6 in

V=bh

H=v/b

H=36/6

H=6

5 0

3 years ago