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taurus [48]
3 years ago
6

What is the probability of getting two heads and two tails in four flips of a fair coin?

Mathematics
1 answer:
jekas [21]3 years ago
3 0
Number of  combinations possible = 4! / 2! 2! =  6

Each of these has probability 1/2*1/2*1/2*1/2  = 1/16

Required probability  = 6  * 1/16  = 3/8
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#11-16 please 15 points
Serjik [45]
11. Similar 1/2
12. Similar 2
13. no
14. no
15. No, they are not congruent because rectangles do not have equal sides, so the length of one triangle could be longer than the other and the width ozone can be shorter than the other.
16. Yes
3 0
2 years ago
Using the Addition Method, find the value of x in the
allochka39001 [22]

Step-by-step explanation:

3x+2y=2------------1

-3x+5y=5-----------2

adding 1 and 2 we get

7y=7

y=1

and from (1),we get

3x+2×1=2

3x=0

x=0 is the required value of x.

8 0
3 years ago
One number is 8 times another number. The numbers are both positive and have a difference of 70. Find the numbers. Which of the
worty [1.4K]
Let, the first (smaller) number = x
Larger number = 8x
Then, 8x - x = 70
7x = 70
x = 70/7
x = 10
& 8(10) = 80

In short, Your Numbers would be, 10 & 80

Hope this helps!
4 0
2 years ago
Figure out how far these planets are from earth, and yes please do the first two questions too. It's science so no need to expla
Aleks [24]

mercury-73.667 million mi

venus-157.86 million mi

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mars-133.1 million mi

jupiter-557.21 million mi

saturn-1.0058 billion mi

uranus-1.8797 billion mi

neptune-2.8704 billion mi

pluto-3.2505 billion mi

im sure this is accurate

4 0
2 years ago
On a coordinate plane, a solid straight line has a positive slope and goes through (negative 4, 0) and (0, 2). Everything below
aliya0001 [1]

Answer:

<h2>D</h2>

Step by step explanation:

<h2>Just took the quiz.</h2>
6 0
2 years ago
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