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Evgen [1.6K]
3 years ago
11

A coin is tossed 20 times. The outcome H or heads And T for tails are recorded, tails for 11 times heads for 9. What is the expe

rimental probability of getting heads?
Mathematics
1 answer:
zmey [24]3 years ago
6 0
You simply divide the number of times you get heads (which is 9) over the total number of coin flips (which is 20)

So the answer as a fraction is 9/20

Converting to decimal form, you'd get 9/20 = 0.45
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pshichka [43]

Answer:

\frac{2  \: +  \: 3 \sqrt{5} }{3}

Step-by-step explanation:

\frac{2}{3}  +  \sqrt{5}  =

= \frac{2}{3}  + ( \sqrt{5}   \times  \frac{3}{3} )

= \frac{2}{3}  +  \frac{3 \sqrt{5} }{3}

=  \frac{2  \: +  \: 3 \sqrt{5} }{3}

4 0
2 years ago
Please Help. 50 points. ​
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Answer:

They are both right angles and they both have a measure of 28°.

Step-by-step explanation:

angle A and angle B are both right angles (90°), and they both have a side measuring 28°. For the missing sides of both the measurement should be 62°.

8 0
4 years ago
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tino4ka555 [31]

Answer:

first one c and the second on b

Step-by-step explanation:

3 0
3 years ago
A truck can travel 80 miles in the same time that ot takes a car to travel 90 miles. If the truck’s rate is 5 miles per hour slo
SIZIF [17.4K]
The truck was going 40 miles per hour

The amount of time was 2 hours:
(90-80: 10)(10/2=5)

80 divided by two is 40


The car was going 45 miles per hour


(90-80:10)(10/2=5)

90 divided by two is 45


Hopefully you find this helpful
3 0
3 years ago
jessie has a peice of wood that is 8 feet long he needs to cut pieces that are 7/8 of a foot long how many pieces will he be abl
attashe74 [19]

Answer: 9 pieces

Explanation: Divide 8 by 7/8 to find the number of cut pieces and you'll get 9.





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3 years ago
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