Answer:
the first one yes the other on e not sure
Step-by-step explanation:
The length of the hypotenuse of right triangle ΔDEF is 50.44 units
<h3>How to find hypotenuse of a right triangle?</h3>
The hypotenuse side can be found using Pythagoras theorem,
Therefore,
c² = a² + b²
where
- c = hypotenuse
- a and b are the other legs.
Therefore,
x² = 39² + 32²
x² = 1521 + 1024
x = √2545
x = 50.4479930225
x = 50.44
learn more on right triangle here: brainly.com/question/12353375
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D, 17.5π. Multiply the Radius by pi. Then, multiply that by the height.
Step-by-step explanation:
so, the 200m winner's average speed was
200m/(60+57)sec = 200/117 m/s
so, 400m with the same speed would need x seconds :
200x/117 = 400
200x = 400×117
x = 2×117 = 234 seconds = 3 minutes and 54 seconds
(after seeing that a minute has 60 seconds, and that then 234/60 = 3 and 54 remainder).
so, she would have reduced her time by 10 seconds (from 4 minutes 4 seconds down to 3 minutes 54 seconds = 4 + 6 = 10).