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
natta225 [31]
3 years ago
14

If you toss four fair coins, in how many ways can you obtain at least one head? Group of answer choicesA. 1/16B. 1/2C. 3/16D. 11

/16E. 3/8
Mathematics
1 answer:
LenKa [72]3 years ago
3 0

Answer:

The correct answer is:

15/16

Step-by-step explanation:

In a toss of four fair coin, there are possibility of 16 occurrence because a coin have an head and a tail (2).

In 4 coins, we will have : 2⁴ = 16

Let S be the sample space, then:

S = { HHHH, HHHT, HHTT, HTTT, TTTH, TTHH, TTTH, TTTT, HTHT, THTH, HHTH, HTHH, TTHT,THHT, HTTH, THTT}

Let E₁ be the event that at least one head appears:

n(E₁) = 15

∴ Pr (E₁) = n(E₁)/ n(S)

             = 15/16

You might be interested in
Milla and Luka are 3 kilometers apart and walking toward each other. Milla's average speed is 5 kilometers per hour and Luka's i
DanielleElmas [232]
5-4=1 hour till they meet
3 0
3 years ago
Please someone answer this!
trapecia [35]

Answer: I would say the because of th width and length

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Please help i need it now <br> Only one question<br> Please answer it correctly
borishaifa [10]

Answer:

I think 540 degrees?

3 0
3 years ago
How can i use variables to describe real world problems
vredina [299]

A variable can be used to represent an unknown amount. Then you write an equation using the variable and based on the information you are given, and you solve the equation to find the unknown amount.

Here is an example.

Mary has money in a bank account. She received $20 for her birthday. She deposited the $20 in her account. After the deposit, she was told the account had a balance of $85. How much money did she have in the account before depositing the $20?

We don't know the amount she had before depositing the $20, so we will call that amount x. x is a letter used as a variable to represent an unknown amount.

She had x dollars in her account before depositing the $20.

After she deposited the $20, she now has x plus 20, or x + 20.

We are told her account now has $85, so x + 20 must equal 85.

That allows us to write an equation which we can then solve to find the amount of money she had in the account before depositing the $20.

x + 20 = 85

Subtract 20 from both sides.

x + 20 - 20 = 85 - 20

x + 0 = 65

x = 65

Since the variable x represents the amount of money in the account before depositing the $20 birthday money, we can now answer the question.

Mary had $65.

7 0
3 years ago
Read 2 more answers
4.2.4Practice:Modeling: Slope-Intercept Equation of a Line
Aleksandr-060686 [28]

the answer to many questions like this are on math Step-by-step explanation:

4 0
3 years ago
Other questions:
  • What is the slope of the line? 2,3 and 4,2
    9·1 answer
  • A solid machine part is to be manufactured as shown in the figure. The part is made by cutting a small cone off the top of a lar
    6·1 answer
  • Whole-wheat bread costs $2.06/lb. How much would 3.8 lb of whole-wheat bread cost?
    11·2 answers
  • A powdered drink mix calls for a ratio of powder to water 1 : 8 if there are 32 cups of powder how many total cups of water are
    11·1 answer
  • The net change in temperature from Neptune to Mars is
    5·1 answer
  • Write an equation in slope intercept form for the line that has a slope of -4 and passes through the point (1,2)
    8·1 answer
  • Fei Yen's dog eats 8 ounces of dog food each day.Fei Yen's bought a 28 pound bag of dog food.How many 8 ounce servings are in a
    10·1 answer
  • Negate this conditional statement. Please show proper work and an explanation. Those who attempt to just respond in order to get
    6·1 answer
  • Decrease 140g by 12.5%
    13·1 answer
  • Anyone can help? with this problem
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!