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
yarga [219]
3 years ago
11

Use the formula for the probability of the complement of an event. A coin is flipped 4 times. What is the probability of getting

at least 1 tail?
Mathematics
1 answer:
raketka [301]3 years ago
7 0

Answer: 15/16

Step-by-step explanation:

There will be 16 outcomes for 4 coins=2^4

Probability of only head is : P(C)=1/16

P(C) + P(C') = 1

P(C') = 1 - P(C)

P(C') = 1 - 1/16

Take the l.c.m

P(C') = (16-1) / 16

P(C') = 15/16

So the probability of getting at least 1 tail is 15/16

You might be interested in
How do I do this ? I need help
Amiraneli [1.4K]

Answer: 40

Step-by-step explanation:

You first start by multiplying 15 times 16 to see how many ounces you have.

15 x 16 = 240

Then you divide it by 6

240/6 is 40

So you can make 40 burgers

8 0
3 years ago
An 11-inch string is cut into 3 equal pieces. Which expression shows the length of each piece?
notka56 [123]

Answer:

A. 11/3

Step-by-step explanation:

11/3 is saying 11 dived by 3, and in the short story the 11-inch string is being cut (divide) into 3 parts.

Hope this helped!

5 0
3 years ago
Read 2 more answers
What is the answer to |x-4|<13
VARVARA [1.3K]

Answer:

<h2>The solution is -9 < x < 17.</h2>

Step-by-step explanation:

|x-4|<13.

The above equation means, whatever the actual value of x is, the value of (x - 4) must be greater than - 13 and less than 13.

Hence, -13 < x - 4 < 13 or, -9 < x < 17. The value of x will be in between -9 and 17. The value of x can not be -9 or 17.

7 0
3 years ago
A quadrilateral with at least one pair of parallel sides and at least two right angles
NemiM [27]
It could be a rhombus
4 0
3 years ago
Which of these strategies would eliminate a variable in the system of equations?
Lubov Fominskaja [6]

Answer:

B

Step-by-step explanation:

2x-5y=13.........(1) × 3

-3x+2y=13.......(2) × 2

6x - 15y = 39

-6x + 4y = 26

Adding

6x - 6x - 15y + 4y = 13 + 13

5 0
3 years ago
Read 2 more answers
Other questions:
  • A square has an area of 25cm2 what is the length of each side?
    12·1 answer
  • How do i solve this equation and how did you do it
    6·1 answer
  • The weekly salary of a store manager includes a $30 bonus plus the number of hours the manager works multiplied by the managers
    12·1 answer
  • 10 &lt; 3x + 19<br> Help ASAP time is running out !
    10·2 answers
  • What is 4/20 + 11/20 in its simplest form​
    7·2 answers
  • Solve the triangle<br> Solve sides
    6·1 answer
  • UGH these math problems tho please help!
    6·2 answers
  • Find the product, give an answer in standerd form <br> (3x2+6x+2)(2x2-8+1)
    5·1 answer
  • The area of a rectangle is 40 cm2. What are the possible whole number dimensions of the rectangle in centimeters?
    5·2 answers
  • What is the area of a sector with measure of arc equal to 90° and radius equal to 1 foot?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!