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
Sonbull [250]
3 years ago
10

Hannah has a biased coin.

Mathematics
1 answer:
muminat3 years ago
7 0
Look at it this way:

When you flip a coin, the probability of it landing with EITHER side showing
is 100%. 

This leads us to the rule ...

               The sum of the probabilities of
               all possible outcomes is 100%.

For a coin:  (probability of heads) plus (probability of tails) = 100%.

That just says:  We're 100% sure that the coin will land with either
heads or tails up.

An "honest" coin gets heads 50% of the time and tails the other 50%.

But if the coin is all bent and squashed and has a feather stuck to
one side and a wad of gum on the other side so that it comes up
heads 70% of the time, then the coin isn't 'honest'.  But it still has to
land EITHER heads OR tails, so the sum of the probabilities is still 100%.

So the probability of heads is 30%.
You might be interested in
An automated assembly line produces 840 units per hour. At the same production rate, how many units could be produced in 45
WARRIOR [948]

Answer:

The 630

Step-by-step explanation:

i took the test on usa test prep

6 0
3 years ago
Find the distance between the points (-8,-11) and (14,-11).​
coldgirl [10]

Answer:

Distance =(x2−x1)2+(y2−y1)2−−−−−−−−−−−−−−−−−−√

Step-by-step explanation:

The answer is provided above.

Distance =(x2−x1)2+(y2−y1)2−−−−−−−−−−−−−−−−−−√

Hope this helps.

6 0
3 years ago
Read 2 more answers
Find the H.C.F of x² - 3x ,x² - 9​
krek1111 [17]
X^2-3x = x(x-3)
x^2-9 = x^2 - 3^2 = (x-3)(x+3)
HCF = x-3
7 0
3 years ago
Read 2 more answers
Simplify the expression: 5^2 - 3 * 6 A)7 B)24 C)132 D)144
kow [346]

Answer:

7

Step-by-step explanation:

5^2 = 5 x 5 = 25

3 x 6 is 18

25 - 18 is 7

also, use PEMDAS

5 0
3 years ago
Read 2 more answers
Sam entered three functions into a graphing calculator, y1 = x + 2, y2 = x2 + 2, and y3 = 2x. A portion of the table created by
V125BC [204]
For this case we have the following functions:
 y1 = x + 2

y2 = x ^ 2 + 2

y3 = 2 ^ x
 
 When x = 0 we have:
 For y1:
 y1 = 0 + 2

y1 = 2
 For y2:
 y2 = 0 ^ 2 + 2

y2 = 0 + 2

y2 = 2
 Therefore, we have to:
 y1 = y2


 When x = 5 we have:
 For y2:
 y2 = 5 ^ 2 + 2

y2 = 25 + 2

y2 = 27
 For y3:
 y3 = 2 ^ 5

y3 = 32
 Therefore, we have to:
 y2 \ \textless \ y3


 When x = -1 we have:
 For y1:
 y1 = -1 + 2

y1 = 1
 For y2:
 y2 = (-1) ^ 2 + 2

y2 = 1 + 2

y2 = 3

 For y3:
 y3 = 2 ^ {-1}

y3 = 1/2

y3 = 0.5
 Therefore, we have to:
 y3 \ \textless \ y1 \ \textless \ y2


 Answer:
 
When x = 0, y1 = y2
 
When x = 5, y2 <y3
 
When x = -1, y3 <y1 <y2
4 0
3 years ago
Other questions:
  • How do I solve (fraction) 2/3d=1/6?
    8·1 answer
  • place a square on a coordinate graph and label each vertex with variables. prove that the diagonals of a square are congruent an
    14·1 answer
  • Please help me I need help
    9·1 answer
  • 4n+78n-3/4=942???<br>PLEASE SHOW STEPS ON HOW YOU GOT IT!
    5·2 answers
  • Solve.
    8·2 answers
  • You work for a pharmacy and monthly sales of asthma inhalers in your pharmacy follows a normal distribution with a mean of 191 i
    15·1 answer
  • Enter a negative number that is greater than -8
    8·1 answer
  • PLEASE ANSWER AND HELP
    10·1 answer
  • Given the inequality of x &lt; 5, select all the
    14·1 answer
  • What is the distance between the two points shown?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!