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
erastova [34]
3 years ago
6

Three coins are tossed at the same time what is the probability that exactly 2 heads appear

Mathematics
1 answer:
oee [108]3 years ago
5 0
You have 3 coins and you want 2 get heads, so you make the 2 and 3 a probability and you get 2/3
You might be interested in
In the diagram, point D is the center of the medium-sized circle that passes through C and E, and it is also the center of the l
mestny [16]

9514 1404 393

Answer:

  5/8

Step-by-step explanation:

The area of the smaller circles is proportional to the square of the ratio of their diameters. The two smallest circles have diameters equal to 1/4 the diameter of the largest circle. Hence their areas are (1/4)^2 = 1/16 of that of the largest circle.

Similarly, the medium circle has a diameter half that of the largest circle, so its area is (1/2)^2 = 1/4 of the are of the largest circle.

The smaller circles subtract 2×1/16 +1/4 = 3/8 of the area of the largest circle. Then the shading is 1-3/8 = 5/8 of the area of the largest circle.

3 0
3 years ago
1 point
kozerog [31]

Answer:

78

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Find the solution to the system of equations below (you can do this by substitution or elimination).
rewona [7]

Step-by-step explanation:

y=6+4x, as equation (iii)

=> -5x-(6+4x)=21

=> -5x-6-4x=21

=> -5x-4x-6=21

=> -9x-6=21

=> -9x=21+6

=> -9x=27

x= -3, by dividing both sides by -9

So, by inserting x in the first equation,

=> -4(-3)+y=6

=> 12+y=6

=> y=6-12

=> y= -6.

Therefore, x= -3 and y= -6

8 0
2 years ago
I need help that is simple enough explnation
velikii [3]

Answer:

7 in both boxes

Step-by-step explanation:

In the picture, it shows

4 (x - 3) = 20

and then it shows

4 (x) - 4 (3) = 20

so practically you separate the x and 3 and put them in parentheses and then put a 4 next to both of them.

It should be the same as your question.

7 x (8 - 3)

and then separate 8 and 3 and put a 7 next to both of them.

( 7 x 8) - ( 7 x 3)

Hope it helps and have a great day! =D

~sunshine~

3 0
2 years ago
Which compound inequality has no solution? x > 2 and 3x ≤ 9 x > 1 and 2x ≤ –2 x > –1 and 4x ≥ –8 x > –2 and 5x ≥ 15
antoniya [11.8K]

Answer:

4x > -8

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose Team A has a 0.75 probability to win their next game and Team B has a 0.85 probability to win their next game. Assume th
    5·1 answer
  • What radical expression is not simplified?
    6·1 answer
  • How do you simplify (2xy2)3
    8·1 answer
  • A rhombus has coordinates A(-6, 3), B(-4, 4), C(-2, 3), D(-4, 2). What are the coordinates of rhombus A'B'C'D' AFTER A 90° COUNT
    11·1 answer
  • 5+x/6=-1 What is x??​
    8·2 answers
  • What is the volume of a sphere when the diameter is 10​
    12·2 answers
  • Find the area of the circle in terms of pi with radius of 42
    15·1 answer
  • Please help me, it’s asking what the constant rate of change, if it’s possible.
    12·1 answer
  • Ruby is building a pentagon-shaped garden and a hexagon-shaped garden.
    6·1 answer
  • Which expression is equivalent
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!