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xxMikexx [17]
3 years ago
6

Toss a coin 5 times. what is the probability of getting exactly 2 tails

Mathematics
1 answer:
Dafna1 [17]3 years ago
5 0
The total number of outcomes is (1/2)^5 dice each of the 5 coin tosses is an independent event. From the 5 possible tails, exactly 2 tails need to be selected. So the favored outcome is 5C2 = (5*4)/(1*2)= 10. The probability is 10/32 = 5/16.
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Question 1 (1 point)
Gnom [1K]

Step-by-stepAnswer:

Step-by-step explanation:

I would say true

7 0
2 years ago
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A regular human hand contains 27 different bones. there are 206 bones altogether in the human body approximately what percent of
laila [671]
Hand: 27 bones
Body: 206 bones

Percent of bones in hand of all human body is expressible by 27 divided by (/) 206 times (*) 100.

27/206=0.13*100=13%

Roughly 13% of bones in the body is in one human hand.

26% in 2 hands. Expressible by 13%*2.
6 0
3 years ago
How do you use the distributive property to simplify an algebraic<br> expression?
makkiz [27]

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Step-by-step explanation:

4 0
3 years ago
1..) 2x +15 = 35 
Masja [62]

Answer:

1) x=10

2) x=3

Step-by-step explanation:

1)

2x+15=35

Subtract 15 from both sides

2x=20

Divide both sides by 2

x=10

2(10)+15=35

20+15=35

35=35

this shows that 10 is the right answer

2)

7x-3=18

Add 3 to both sides

7x=21

Divide both sides by 7

x=3

7(3)-3=18

21-3=18

18=18

this shows that 3 is the right answer

Hope this helps

3 0
3 years ago
Suppose that $2000 is placed in a savings account at an annual rate of 4.6%, compounded quarterly. Assuming that no withdrawals
LenaWriter [7]

Answer:

It will take 35.46 quarters for the account to grow to $3000.

Step-by-step explanation:

Since the annual rate is compounded quarterly, this can be calculated using the formula for calculating the future value as follows:

FV = PV * (1 + r)^n ............................ (1)

Where;

FV = future value or the amount the deposit expected to grow to = $3,000

PV = Present value or the amount place in the savings = $2,000

r = Quarterly rate = Annual rate / 4 = 4.6% / 4 = 0.046 / 4 = 0.0115

n = number of quarters it will take for the loan to grow to $3000 = ?

Substituting the values into equation (1) and solve for n, we have:

$3,000 = $2,000 * (1 + 0.0115)^n

$3,000 / $2,000 = (1.0115)^n

1.50 = (1.0115)^n

Loglinearise both sides, we have:

log(1.50) = n log(1.0115)

0.176091259055681 = n * 0.00496588710682352

n = 0.176091259055681 / 0.00496588710682352

n = 35.4601816891322

Rounding to the nearest hundredth, which also implies to rounding to 2 decimal places, we have:

n = 35.46

Since the the annual rate is compounded quarterly, it will therefore take 35.46 quarters for the account to grow to $3000.

3 0
3 years ago
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