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NeTakaya
2 years ago
10

ellen flipped a coin 80 times. the coin landed heads up 44 times and tails up 36 times. what is the theoretical probability of l

abding tails up
Mathematics
2 answers:
soldi70 [24.7K]2 years ago
5 0

Answer:

50%

Step-by-step explanation:

pashok25 [27]2 years ago
3 0
1/2 or 50% because each flip of a coin is independent from the last and a fair coin has an equal probably of landing on either side
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What is the measure of m?<br> 5<br> 15<br> E<br> n<br> m = [?]
AlekseyPX
<h3>Answer:  10</h3>

====================================================

Explanation:

The two smaller triangles are proportional, which lets us set up this equation

5/n = n/15

Cross multiplying leads to

5*15 = n*n

n^2 = 75

----------

Apply the pythagorean theorem on the smaller triangle on top, or on the right.

a^2+b^2 = c^2

5^2+n^2 = m^2

25+75 = m^2

100 = m^2

m^2 = 100

m = sqrt(100)

m = 10

7 0
2 years ago
8. The sum of two numbers is 23 less than twice the first number. Their difference is 19 less than
Katarina [22]

Answer:

44, 21

Step-by-step explanation:

x+y = 2x-23

x-y = 2y - 19

Rewrite

-x + y = -23

x - 3y = -19

Use elimination.

4 0
3 years ago
If Greg ate 5/7 of a cake and bob ate 3/9 how much is left
laiz [17]
2 + 6 = 8. 2 is left. 6 is left.
8 0
3 years ago
A car travels 258 miles in 312 minutes at a constant speed. Which equation represents the distance, d, that the car travels in m
pashok25 [27]

Answer:

0.83 miles per minute

Step-by-step explanation:

The speed of the car can be found by dividing the distance by the time. THe distance is 258 miles and the time is 312 minutes.

s=\frac{d}{t} \\s=\frac{258}{312} \\s=0.83

6 0
3 years ago
Compute the average (mean) from the data shown. (round to the nearest tenth)
Alexus [3.1K]

Answer:

(C) 75.1

Step-by-step explanation:

Add all the numbers then divide by numbers of numbers their are

91+91+91+97+65+37+41+76+ 87= 676

676/9= 75.1111111111 and it goes on forever

6 0
3 years ago
Read 2 more answers
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