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
gregori [183]
3 years ago
13

A fair spinner has 9 equal sections: 4 red, 3 blue and 2 green.

Mathematics
1 answer:
Gennadij [26K]3 years ago
6 0

Answer:

14/81

Step-by-step explanation:

The probability of getting a green is number of green sections ÷ total number of sections = 2/4+3+2 = 2/9

Probability of not getting a green is = 1 - probability of getting a green = 1 - 2/9 = 7/9

Now we calculate the probability of not getting 2 consecutive greens. I.e probability of getting a green the first time and not getting it the second time= (2/9 × 7/9) = 14/81

You might be interested in
Rebecca needs 10 1/2 yards of fabric to make a quilt. She has one piece of fabric that is 2 1/2 yards and another piece of fabri
nikdorinn [45]

Answer: 3 3/4 yards. I think.

Step-by-step explanation: 10 1/2=10 2/4 2 1/2=2 2/4

10 2/4 - 2 2/4= 8. 8= 7 4/4. 7 4/4 - 4 1/4= 3 3/4.

7 0
3 years ago
Solve all 5 questions for 62 points if they are correct you will be marked brainiest
katen-ka-za [31]

Answer:

1.0.003

2.40 minutes

3.a,e

4.a,c,d

5.1/24

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Researchers are studying the distribution of subscribers to a certain streaming service in different populations. From a random
Katen [24]

Answer:

CI = (0.17 - 0.27)\± 1.65\sqrt{\frac{(0.17)*(0.83) + (0.27)*(0.73)}{200}}

Step-by-step explanation:

Given

n = 200

x_1 = 34 -- City C

x_2 = 54 --- City K

Required

Determine the 90% confidence interval

This is calculated using:

CI = \bar x \± z\frac{\sigma}{\sqrt n}

Calculating \bar x

\bar x = \bar x_1 - \bar x_2

\bar x = \frac{x_1}{n} - \frac{x_2}{n}

\bar x = \frac{34}{200} - \frac{54}{200}

\bar x = 0.17 - 0.27

For a 90% confidence level, the ​z-score is 1.65.  So:

z = 1.65

Calculating the standard deviation \sigma

\sigma = \sqrt{(\bar x_1)*(1 - \bar x_1) + (\bar x_2)*(1 - \bar x_2) }

So:

\sigma = \sqrt{(0.17)*(1 - 0.17) + (0.27)*(1 - 0.27) }

\sigma = \sqrt{(0.17)*(0.83) + (0.27)*(0.73)}

So:

CI = (0.17 - 0.27)\± 1.65\frac{\sqrt{(0.17)*(0.83) + (0.27)*(0.73)}}{\sqrt {200}}

CI = (0.17 - 0.27)\± 1.65\sqrt{\frac{(0.17)*(0.83) + (0.27)*(0.73)}{200}}

7 0
2 years ago
Can someone please help me with this question?
Vanyuwa [196]

Answer:

5 seconds

Step-by-step explanation:

In 5 seconds it will be at 98 meters

x = -b/2a

x = -20/2(-2) = -20/-4 = 5

8 0
3 years ago
What is one way that authors can come up with ideas for providing context for their readers?(1 point)
nataly862011 [7]

Answer:

Brainstorming i think

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • You buy painting supplies for $12, and you charge $3 per person to paint faces. How many faces will you need to paint to earn $1
    8·2 answers
  • A pond is being dug according to plans that have a scale of 1 inch = 6.5 feet. The maximum distance across the pond is 9.75 inch
    8·1 answer
  • A class quiz has 5 True/False questions. The correct answers are T, T, F, F, and T, in that order. John answered the questions r
    14·2 answers
  • Some four​-digit ​numbers, such as 3003 and 6226​, read the same forward and backward. If a boy selects a number from all four​-
    8·1 answer
  • I need help with this​
    15·1 answer
  • A graph is shown below:
    14·2 answers
  • A 2-quart carton of frozen yogurt costs $10:88. What is price per cup?
    8·1 answer
  • Which shows the list of numbers in order from least to greatest?
    13·1 answer
  • What is an equation of the line that passes through the points (-6, 3) and (-5,2)
    11·1 answer
  • The shortest fish ever recorded is the dwarf goby, found in the Indo-Pacific. The female of this species is about 35 over 100 in
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!