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Ksju [112]
3 years ago
12

A fair coin is tossed 5 times in a row. The exact probability of the coin landing heads exactly 2 times is

Mathematics
1 answer:
Andreas93 [3]3 years ago
6 0
If its a fair 2 sided coin thats flipped tice the poibillity of getting heads or tails would be 2 and 1/2  so it would be 2 1/2 over 5 
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I don’t understand this problem
ikadub [295]

Hello! the answer is c

First of all let's eliminate the answers that do not make sense. For A. numbers are NOT irrational because they are a fraction. Numbers are also not irrational because they are a repeating number. C and D are both correct as fractions and terminating decimals are both rational numbers.

34/3≈11.33333333

By using a certain formula you can convert repeating decimals to a fraction. But most people know that .3333333 is 1/3. This gives us 11 1/3 as our answer. So what does it match? It is not a terminating decimal. It repeats but can be written as a fraction. Therefore our answer is C) Rational, because it is a fraction.

I hope this helps!

bran-list please

4 0
4 years ago
i put 12 gallons of gas in my car. each gallon was $5.15. there was also 9% tax. what was the total i paid?
wariber [46]
Steps:
5.15*1.09*12 = total

5.6135*12 = total

$67.36= total

Answer: $67.36
4 0
2 years ago
Slope that falls between (0,20) and (20,85)
Kipish [7]

Answer:

13/4

Step-by-step explanation:

To find the slope we use the equation

m= (y2-y1)/(x2-x1)

   = (85-20)/(20-0)

    = 65/20

    = 13/4

5 0
3 years ago
Lindsay says all numbers that are multiples of 4 have 2 as a factor. Is lindsay correct?
m_a_m_a [10]

Answer:

Yes

Step-by-step explanation:

Let's take any random multiple of 4 as an example:

8 = 2 • 4

64 = 2 • 32

20 = 2 • 10

Try any multiple of 4—this pattern continues.

7 0
3 years ago
Keep getting this wrong please help!!!
photoshop1234 [79]

Answer:

14.13 in³

Step-by-step explanation:

Volume of a ball (sphere) is:

V = ⁴/₃ π r³

Circumference of a ball (circle) is:

C = 2π r

Use the circumference to find the radius.

9.42 in = 2π r

r = 1.50 in

Use the radius to find the volume:

V = ⁴/₃ π (1.50 in)³

V = 14.13 in³

4 0
3 years ago
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