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
Gennadij [26K]
3 years ago
14

Suppose I pick a jelly bean at random from a box containing two red and ten blue ones. I record the color and put the jelly bean

back in the box. What is the probability of getting a red jelly bean both times if I do this twice? (Round your answer to three decimal places.)
Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
6 0

Answer:

The probability of getting a red jelly bean both of the times is 0.028.

Step-by-step explanation:

First we have that in the box are 12 jelly beans having 2 red and 10 blue. The probability of getting one of the red jelly beans are the sum of the probability of the 2 red jelly beans, that is:

ProbabilityRed=\frac{1}{12} +\frac{1}{12}=\frac{2}{12}

Now we can calculate the probability of getting the red jelly bean twice, this will be the product of the probability of getting each one, is the same probability for the second chance because we are getting the jelly bean back in the box, this is:

ProbabilityBothRed=\frac{2}{12} *\frac{2}{12}=\frac{4}{144}  =\frac{1}{36} =0.028

Now we have that the probability of getting a red jelly bean both of the times is 0.028.

You might be interested in
Every square is a rectangle.
Hoochie [10]
<span>Every square is a rectangle. Always

</span>A<span> rectangle is any four-sided with four right angles and opposite sides are equal.
Squares has four right angles, so square is a special type of rectangle with all sides equal.
</span>
7 0
3 years ago
At a zoo, the lion pen has a ring-shaped sidewalk around it. The outer edge of the sidewalk is a circle (blue) with a radius of
Alecsey [184]

Answer:

380.13 m

Step-by-step explanation:

You first need to write down the Area formula for a circle which is  A=pi x radius^2 .

So 11^2 x 3.1415...

121 x 3.1415... = 380.13 m

8 0
3 years ago
Whats the soultion for 10000 ft/hr = mi/hr
VLD [36.1K]
Hi! There are 5,280 feet in a mile. Therefore, you need to divide 10,000 feet by 5,280 (to see how many miles there are per every 5280 feet) and you get 1.89 miles per hour.
7 0
3 years ago
Kerry bought a conical tent to put on the back porch. The tent instructions reveal the height at the tallest point to be 4.5 fee
IrinaVladis [17]

Answer:

Kerry bought a conical tent to put on the back porch. The tent instructions reveal the height at the tallest point to be 4.5 feet and the space inside to be 10.5 cubic feet. About how many square feet of the back porch will be covered by the tent?

Which measure of the cone needs to be calculated to answer the problem?

Base Area

Which equation represents the scenario?

10.5=(1/3)B(4.5)

How many square feet of the back porch will the tent cover?

7 square feet

Step-by-step explanation:

5 0
3 years ago
A rope, attached to a weight, goes up through a pulley at the ceiling and back down to a worker. The worker holds the rope at th
Mrac [35]

Answer:0.246ft/s

Step-by-step explanation: when the the worker starts moving and stops 10 feets away from lateral rope connecting the load, it forms a right angle triangle as see in the pix.

V = s/t ... equ 1

S= distance traveled by worker while pulling the rope = 10 ft

V = velocity of worker = 2ft/s

T = time taken the worker to move 10 ft = time taken for the load to move up = 5seconds

Use Pythagoras theorem to determine distance from pulley to new position of worker

Square root of (40^2 + 10^2) = 41.23ft

Distance traveled by load = D = 41.23 - 40

=1.23ft

Speed of load = D/ t...equ2

Substituting D and the into equ2

S.l = speed of load = 1.23/5 =0.246ft/s

4 0
3 years ago
Other questions:
  • Order the following from least to greatest 0.35, 3/8, 42%,0.2
    8·2 answers
  • A total of
    6·1 answer
  • One leg of an isosceles right triangle measures 5 inches. Rounded to the nearest tenth, what is the approximate length of the hy
    5·2 answers
  • 1)a customer buys 2 shirts and pair athletic shoes. The shirts are priced the same. The customer spends a total of $95 .Write an
    14·1 answer
  • Twelve diminished by six times a number
    5·1 answer
  • On a coordinate grid, point P is at (4, 3) and point R is at (−2, −5). Points Q and S are a reflection of both points across the
    14·1 answer
  • Freday
    9·1 answer
  • HELP!!! for 20 points
    12·1 answer
  • X-2/3=8 <br> Find the answer for x
    9·2 answers
  • Evaluate the piecewise-defined function for the indicated values. I’m just unsure of how to solve when the value isn’t given dir
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!