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
agasfer [191]
3 years ago
14

If you roll three fair coins what is the probability that youll get at least 2 heads

Mathematics
2 answers:
blagie [28]3 years ago
6 0

Answer:

1/2 or 50%

Step-by-step explanation:

You can use some casework to find your answer.

The first case - only two of the coins are heads.

The possible ways that this could be are:

THH

HTH

HHT

The second case - all three coins are heads.

In this instance, there is only one way that this could happen:

HHH

This is a total of 4 desired outcomes out of 2*2*2=8 possible outcomes, which is a probability of 4/8=1/2. Hope this helps!

Dennis_Churaev [7]3 years ago
6 0

Answer:  12.5

Step-by-step explanation:

100/2=50/2=25/2=12.5

HOPE THIS HELP

You might be interested in
Please answer this correctly
Hoochie [10]

Answer:

3:48 P.M

because you add all the number making sure it's not greater than 60 and carry over to the next hour if it is

3 0
2 years ago
Read 2 more answers
Find the nth term or this sequence<br><br> 8 12 16 20 24 ...
scoray [572]
8\\8+4\\8+4+4\\8+4+4+4\\...\\8+4(n-1)

8+4(n-1)
8 0
2 years ago
In which quadrants do solutions for the inequality y is less than or equal to two sevenths times x plus 1 exist? i, iii, and iv
tigry1 [53]

The solutions will lie  in all the four quadrants.

y≤2/7x+1

We have the following inequality:

y=2/7x+1

If x=0

y=2/7(0) +1

y=1

If y=0

x=-3.5

So the line passes through the points:

(0,1) and (-3.5,0)

To find the shaded region, let us take a point, namely, the origin and test it in the inequality:

y≤ 2/7x +1

0≤ 2/7(0) +1

0≤ 1 which is true

Since this is true, then the shaded region includes this point. This is shown below and as you can see the solutions exist in all four quadrants.

To learn more about Inequalities, visit brainly.com/question/12890742

#SPJ4

4 0
2 years ago
WILL GIVE BRAINLEST 100 POINTS PLZ HELP ME
yuradex [85]

Answer:

2

Step-by-step explanation:

Its the only graph that matches.

3 0
2 years ago
Read 2 more answers
Pls answer this questionn plss ill mark u brainliest
DedPeter [7]
Okay so there are 100 white balloons, 200 pink balloons, and we are specified that the ratio of pink to yellow is 10:1 soo we can plug 200:20 which can be simplified to 100:10 which can then be simplified to 10:1 there is our ratio. So there are 29 yellow balloons. Therefore there are only 80 balloons left which would mean there are 80 blue balloons!:)
5 0
2 years ago
Other questions:
  • 2x2-3x-2=x+4 select all the solutions
    14·1 answer
  • Edward deposited $5,500 into a savings account 4 years ago. The interest rate is 5%. How much money did Edward earn in interest?
    13·1 answer
  • A submarine cuts through the water at an elevation of 203 meters under the sea. The sub rises, and the elevation changes by 4.3
    10·1 answer
  • 5.63 round to nearest tenth
    10·2 answers
  • Find the area of the trapezoid.
    7·1 answer
  • Please help, I’m confused
    6·1 answer
  • Please answer ill give brainliest for best answer!!
    5·1 answer
  • Solve 2x + 6 &gt; 20.<br> O A. x&gt; 13<br> O B. x&gt;7<br> O c. x&lt; 13<br> O D. x&lt;7
    10·1 answer
  • In rectangle ABCD, point E lies halfway between sides AB and CD and halfway between sides AD and BC. If AB=6 and BC=9, what is t
    7·1 answer
  • A server at a restaurant works 5 hours on a weekday and 8 hours on a weekend day. Use the expression to find the number of hours
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!