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
marta [7]
3 years ago
13

We have 2 opaque bags, each containing 2 balls. One bag has 2 black balls and the other has a black ball and a white ball. You p

ick a bag at random and then pick one of the balls in that bag at random. When you look at the ball, it is black. You now pick the second ball from that same bag. What is the probability that this ball is also black?
Mathematics
1 answer:
satela [25.4K]3 years ago
8 0

Answer:

1/2

Step-by-step explanation:

Since we are trying to find the probability of 2nd being ball being black when we already know that first ball is black. This reduces our problem to probability by which we picked the bag with two black balls.

So the answer should be 1/2.

You might be interested in
What's the ordered pair for point H in the graph above?
Bumek [7]

Answer:

C) (5,0)

Step-by-step explanation:

1. The correct answer is C) because when we move five units to right from the origin, and zero units up, we end up at point H!

6 0
3 years ago
A, B & C lie on a straight line.
Liono4ka [1.6K]

Answer:

x = 129°

Step-by-step explanation:

∠ ABD and ∠ DBC are a linear pair and sum to 180° , then

y + ∠ DBC = 180°

107° + ∠ DBC = 180° ( subtract 107° from both sides )

∠ DBC = 73°

the exterior angle of a triangle is equal to the sum of the 2 opposite interior angles , then

x = ∠ DBC + z = 73° + 56° = 129°

8 0
2 years ago
for the equation 2x(3x+5)+3(3x+5)=ax^2+bx+c , if this equation is true for all values of x,what is the value of b if a,b,and c a
guapka [62]

Answer:

b=19

Step-by-step explanation:

2x(3x+5)+3(3x+5)=ax2 +bx+c

by expansion,

6x2 +10x +9x+15=6x2 +19x +15

6 0
3 years ago
I need help hdbcjsjfnfnfjfjffdbbfdncndnc
lbvjy [14]
\frac{3}{15k+30} : \frac{6k}{5k^2+30k+40} = \frac{3}{15(k+2)} . \frac{5(k+2)(k+4)}{6k} = \frac{k+4}{6k}
8 0
3 years ago
Helpppppppppppppppppppppppp
guajiro [1.7K]
The anwser is c your welcome
4 0
2 years ago
Read 2 more answers
Other questions:
  • Easy to Find, a computer data base, charges $30/h during peak hours to access its records. The charge during off-peak hours is $
    14·1 answer
  • In collin county there are approximately 834,000 people. If about 30,000 are under the age of 25 what fractional part are above
    10·1 answer
  • 2x+5d-9×2c+844+233+2×+78d​
    9·1 answer
  • For 5th grade which equation provides the best estimate of the product of 1.7 and 3.2
    7·1 answer
  • Drag and drop the correct volume of the cylinder into the box to find the volume of the figure. Use 3.14
    7·1 answer
  • Please use the following image for the next 7 questions. Keep in mind
    8·1 answer
  • Consider the following equations and name the property of equality used to solve for the variable.
    7·1 answer
  • What type of angles are
    6·1 answer
  • Determinar la longitud de la hipotenusa del siguiente triángulo si se conocen las medidas que se indican de los demás triángulos
    12·1 answer
  • How many kilograms are there in 8 pounds? Hint: 1 lb ≈ 0.454 kg Round your answer to the nearest tenth.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!