If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air

Mathematics

2 answers:

Lapatulllka [165]3 years ago

4 0

Around 10.7s

However I'm not sure what you're really asking for.

How long does it remain in the air?

marissa [1.9K]3 years ago

4 0

To find the time it has remained in the air,we can use the formula:

Distance/speed = time

In this case:

139/13
=10.6923...
≈10.69 seconds

Therefore the answer is 10.69 seconds.

Hope it helps!

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In the figure, angle D measures 45° and angle E measures 87°. What is the measurement of angle H? 42°

Vinvika [58]

The complete question is shown in the attached image

Answer:
measure angle H = 42°

Explanation:
There is a theorem that states that:
"In a triangle, the measure of the exterior angle is equal to the sum of the measures of the two non-adjacent angles to the exterior angle"

In the given, we have:
angle E is an exterior angle to triangle DFH
The two non-adjacent angles to angle E are angles D and H

Based on the above rule:
measure angle E = measure angle D + measure angle H

We are given that:
angle E = 87°
angle D = 45°

Substitute with the givens in the above rule and solve for the measure of angle H as follows:
angle E = angle D + angle H
87° = 45° + measure angle H
measure angle H = 87° - 45°
measure angle H = 42°

Hope this helps :)