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Burka [1]
3 years ago
13

Kathy has a coin, what is the probability of flipping three heads in a row? Please choose one answer.

Mathematics
2 answers:
julsineya [31]3 years ago
8 0

Answer:

About 1/8 of a chance or a 12.5% chance

Step-by-step explanation:

See, we already know that the chance of one head is going to be one-half, right?

So we can multiply that fraction by itself by as many times as the coin is flipped in order to get our probability.

So 1/2*1/2*1/2 = 1/8

1/8 is also equal to the decimal .125, and percentages are based of the number one, so as a percentage it should look like this: 12.5%

To be more in depth with it, let's look at this:

Based off this chart, we can also identify that there is a total of 8 possible outcomes, so it is not a coincidence that there is a 1/8 chance of getting heads 3 times.

Katyanochek1 [597]3 years ago
4 0

Answer and Explanation:

The probability of flipping a coin to get heads is 1/2 or 50%. If you multiply this, by how many times you flip it, or 1/2 * 1/2 * 1/2, then you get 1/8 or 12.5% chance that she will get heads 3 times in a row

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3x - 3 = 15 <br>ASAP.........​
bagirrra123 [75]

Answer:

x = 6

Step-by-step explanation:

3x - 3 = 15

3x = 15 + 3

3x = 18

x = 18/3

x = 6

hope it helps!

8 0
2 years ago
Read 2 more answers
Please help! I keep on getting the wrong answer!
valentina_108 [34]

Answer:

CODE: 1977.98

Step-by-step explanation:

A.

(To get the closest answer, round the circumference to the nearest ten thousandth.)

C = 2(3.14)r                      Circumference formula: C = 2πr

C = 2(3.14)(3)

C = 18.84

B.

A = (3.14)r²

A = (3.14)(3)²

A = (3.14)(9)

A ≈ 28.26

C. (It's asking for the circumference.)

C = 2(3.14)r

C = 2(3.14)(58)

C ≈ 364.24

D. (It's a linear pair, which is 180 degrees.)

4x + 2x = 180

6x = 180

x = 30

m∠ABD = 4x

m∠ABD = 4(30)

m∠ABD = 120°

E. (∠GHI & ∠JHK are vertical angles, so they are congruent.)

x + 7 = 3x - 21

28 = 2x

14 = x

F. (x = 14)

m∠JHK = 3x - 21

m∠JHK = 3(14) - 21

m∠JHK = 42 - 21

m∠JHK = 21°

G. (Supplementary - two angles that add up to 180 degrees.)

180 - 84

= 96°

CODE: E(C - D) - F(G - B) - A

CODE: 14(364.24 - 120) - 21(96 - 28.26) - 18.84

CODE: 14(244.24) - 21(67.74) - 18.84

CODE: 3419.36 - 1422.54 - 18.84

CODE: 1977.98

8 0
1 year ago
Hillside Elementary ordered 40 pizzas for
Whitepunk [10]

Answer:

28 pizzas eaten

Step-by-step explanation:

1) estimate each number, i will take 3 1/4 as 3

5 3/4 as 6

and

2 3/4 as 3

2) combine the total number of pizzas left over:

3+6+3=12

subtract the number of pizzas left over from the total ordered:

40-12=28

6 0
3 years ago
-*~…First Answer Gets Brainliest…~*-
My name is Ann [436]

Answer:

Step-by-step explanation:

You could also use increments of 4 degrees instead, so the first line to the right of the zero point represents 4 degrees Celsius, the second represents 8 degrees and so on. Having each line represent 4 degrees is useful, since the temperatures where Celsius and Fahrenheit correspond are multiples of 4 in both scales. It's ok if you give brainliest to the other person who answered first

3 0
3 years ago
Alex is thinking of a double fact. The sum is greater than the sum of 7+7 but less than the sum of 8+9. What fact is Alex thinki
schepotkina [342]
Use an inequality:
S = sum

7 + 7 < S < 8 + 9
14 < S < 17

so the sum is between 14 and 17


8 0
3 years ago
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