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2 years ago

NEED HELP REALLY FAST!!!!!!!!!

Mathematics

2 answers:

Andrei [34K]2 years ago

8 0

The answer is 10, hopefully this helps:)

omeli [17]2 years ago

6 0

I think the answer would be 8 :) hope this helps !

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Riley was determined to be on the basketball team. He started practicing for 40 minutes on the first day, and then increased his

Alexeev081 [22]

Answer:

With Riley's pattern, he will practice 2,000 total minutes in 25 days.

Step-by-step explanation:

Since Riley increased his practice time by 20, 20 times 40 is 80 minutes. And since he is repeating this in total of 25 days, 80 times 25 is 2,000.

Hope this helped you in some way. If not, then let me know.

4 0

2 years ago

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QUICK PLEASE HELP ME!!!!!

11111nata11111 [884]

Answer:

Step-by-step explanation:

Hopefully this isn't too late. My work is attached below.

8 0

2 years ago

If a person tosses a coin 23 times, how many ways can he get 11 heads

EastWind [94]

Tossing a coin is a binomial experiment.

Now lets say there are 'n' repeated trials to get heads. Each of the trials can result in either a head or a tail.

All of these trials are independent since the result of one trial does not affect the result of the next trial.

Now, for 'n' repeated trials the total number of successes is given by

$_{r}^{n}\textrm{C}$

where 'r' denotes the number of successful results.

In our case $n=23$ and $r=11$ ,

Substituting the values we get,

$_{11}^{23}\textrm{C}=\frac{23!}{11!\times 12!}$

$\frac{23!}{11!\times 12!}=1352078$

Therefore, there are 1352078 ways to get heads if a person tosses a coin 23 times.

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3 years ago

Kathy swam 3 laps in the pool this week. She must swim more than 12 laps each month. How many more laps must Kathy swim to meet

ra1l [238]

Answer:

Step-by-step explanation:

12-3=9

8 0

2 years ago

What is 7 times 7 + 7 ?

Basile [38]

The answer would be 98

7+7=14
14•7=98

5 0

2 years ago

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