1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
babymother [125]
3 years ago
12

. Find the probability that the coin turns up heads for the first time on the tenth, eleventh, or twelfth toss.

Mathematics
1 answer:
Degger [83]3 years ago
3 0

Answer:

0.001709

Step-by-step explanation:

The probability of getting 9 tails then 1 head is:

(½)⁹ (½)¹ = (½)¹⁰

The probability of getting 10 tails then 1 head is:

(½)¹⁰ (½)¹ = (½)¹¹

The probability of getting 11 tails then 1 head is:

(½)¹¹ (½)¹ = (½)¹²

The total probability is:

(½)¹⁰ + (½)¹¹ + (½)¹²

0.001709

You might be interested in
Can you help me please
Airida [17]

Answer:

(-1,-4)

Explanation:

The vertex of a parabola is the point where the parabola crosses its axis of symmetry.

4 0
2 years ago
The common factors of 28 and 40
sveticcg [70]
The factors of 28 are 1, 2, 4, 7, 14, and 28.
 
<span>The factors of 40 are 1, 2, 4, 5, 8, 10, 20, and 40.
 </span>
<span>The common factors are 1, 2, and 4.</span>
6 0
3 years ago
What is the length of the base of a square pyramid if the volume is 576 cubic inches and has a height of 3 inches?
storchak [24]
The length of the base is 24 cubic inches

7 0
2 years ago
Complementary events are described as the events of one outcome happening and that outcome not happening. Given that definition,
masya89 [10]

Complementary events are the events which are opposite of the given event.

For example, for a "rainy day", its complimentary event is "not a rainy day".

We can also say, If A is a given event, then " not A" is its complimentary event.

In the given question we have been given the event of choosing a girl's name when drawing names from a cup in class.

Now in class as there can be boys or girls, the complimentary even of choosing a girl's name is choosing a boy's name.

Option C) is the right answer.


3 0
3 years ago
Read 2 more answers
3 to the power of 2 + 4 to the power of 2
julia-pushkina [17]

Answer:

25

Step-by-step explanation:

hope this helps

5 0
3 years ago
Read 2 more answers
Other questions:
  • Y=2x^2<br> Y=-3x-1<br><br> You have to solve this system of equations
    5·1 answer
  • Darcy bought 1\2 pound of cheese and 3/4 pound of hamburger for barbecue use the number to compare the amounts of cheese and ham
    5·2 answers
  • Is 0.8 miles more than 0.69
    5·2 answers
  • An 18-foot ladder is leaning against a vertical brick wall. The base of the ladder is 9 feet away from the wall.
    5·1 answer
  • I’m confused?! Can someone help?!
    7·2 answers
  • Solve for X<br><br> WILL GUVE BRAINIEST ON THE FIRST ANSWER <br><br> 15POINTS
    11·1 answer
  • Please help I’m gonna fail
    8·1 answer
  • A number I more than -13
    6·2 answers
  • X+y=12<br> 3x = 2y + 6<br> system of elimination
    6·1 answer
  • Patel is solving 8x2 + 16x + 3 = 0. Which steps could he use to solve the quadratic equation? Select three options. 8(x2 + 2x +
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!