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pentagon [3]
1 year ago
8

Linda tossed a fair coin 6 times, and the result was heads each time. Which statement

Mathematics
1 answer:
Ivanshal [37]1 year ago
6 0

Answer:

D.

Step-by-step explanation:

Each toss is independent so the probability of getting a tail is the same thE OF GETTING A HEAD - 50%^.

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A motorboat maintained a constant speed of 15 miles per hour related to water going 44 miles upstream then returning the total t
yanalaym [24]

The speed of the current is 13 mph

<h3>What is speed?</h3>

speed refers to distance travelled per unit time. This is a vector quantity this implies that it has magnitude and direction.

The unit for speed as used here is miles per hour and can be written in short form as mph

<u>Given data</u>

speed of boat = 15 miles per hour = 15 mph

distance = 44 miles upstream

total time for the trip = 7.5 hours

<h3>solving for the speed of the current</h3>

let the water current be x

speed = distance / time

the total travel time upstream and downstream is known

for upstream

15 - x = 44 / time

time = 44 / 15 - x

for downstream

15 + x = 44 / time

time = 44 / 15 + x

total time = time for upstream + time for downstream = 7.5

7.5 = (44 / 15 - x ) + ( 44 / 15 + x )

7.5 = ( 44 ( 15 + x ) + 44 ( 15 - x ) ) / ( 15 + x  )( 15 - x )

7.5 ( 15 + x  )( 15 - x ) = 210 +44x + 210 - 44x

7.5 ( 225 - x ^ 2 ) = 420

( 225 - x ^ 2 ) = 56

169 = x ^ 2

x = sqrt ( 169 )

x = 13 miles per hour

hence speed of current is 13 miles per hour

Read more on speed here: brainly.com/question/4931057

#SPJ1

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Hal forgot the number of people at the basketball game.He does remember that the number had four digits and a 3 in the tens plac
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There are a lot of numbers you can think of, for example, 1030, or even 9939, but I don't recommend you put that ;)
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Select the correct answer.
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It is CD

Step-by-step explanation:

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-0.6, -1/4, 0.3, 1/2

Step-by-step explanation:

Give me brainliest.

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