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Anna71 [15]
3 years ago
7

John flips three pennies. • amy peeks and sees that the first coin lands heads. what is the probability of getting all heads?

Mathematics
1 answer:
attashe74 [19]3 years ago
4 0
The sample space would be 27. The probability of getting 3 heads if you flip 3 pennies is 1/27.
Hope it helps! :)
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There is a stack of 8 cards each given a different number from 1 to 8. Suppose we select a card randomly from the stack, replace
Alex Ar [27]

Answer:

Step-by-step explanation:

odd numbers are 1,3,5,7

number of odd cards=4

Total number of cards=8

Number of cards less than 4=3  {1,2,3}

Required~probability=\frac{4}{8} *\frac{3}{8} =\frac{3}{16}

3 0
3 years ago
Read 2 more answers
The population of a colony of mosquitoes obeys the law of uninhibited growth. If there are 1000 mosquitoes initially and there a
ad-work [718]

Answer: 3,917 days

Step-by-step explanation:

5 0
3 years ago
Julio is training for a swimming race. The first part of his training schedule is shown. Session 1 2 3 456 Swimming distance (mi
Volgvan

An arithmetic sequence is a sequence in which the difference between each consecutive term remains same (constant).  

The explicit formula for an arithmetic sequence is A_n=a+(n-1)d, where a is first term of sequence, d is the common difference between consecutive terms.

A) We can see from Julio's swimming distance that it is in arithmetic sequence as after every successive training session Julio's swimming distance increased by 0.30 miles.  

0.55-0.25=0.30

0.85-0.55=0.30

1.75-1.45=0.30

Therefore, we can see that Julio's training schedule is an arithmetic sequence.

B) Let us find Julio will take how many days to swim 2.95 miles by using explicit formula.

A_n=a+(n-1)d

Let us substitute our given information in above formula.

2.95=0.25+(n-1)0.30

2.95=+0.25+0.30n-0.30

2.95=0.30n-0.05

2.95+0.05=0.30n

3.00=0.30n  

n=\frac{3.00}{0.30}=10

We are told that Julio swims every two days, this implies that he would swim on alternate days. So he will swim 2.95 miles on 10*2 =20th day.

Let us find 20th day will be which day. As Julio started his training schedule on Tuesday, 20th day will be a Sunday. Therefore, Julio will swim for 2.95 miles on a Sunday.  


6 0
3 years ago
0.46口 1/3 need help lmk
mel-nik [20]
Hi thank goodness you thank you for asking thank me thank goodness
4 0
4 years ago
(16x3 + 40x2 + 72) (2x + 6)
Volgvan
(16x^3+40x^2+72)(2x+6)=32x^4+96x^3+80x^3+240x^2+144x+432=32x^4+176x^3+240x^2+144x+432

In this case, you have to multiply each term of one parenthesis by each term in the second bracket. After receiving a number of factors need to be segregated and placed in the correct order.

8 0
4 years ago
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