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
user100 [1]
3 years ago
14

The following data are based on a survey taken by a consumer research firm.In this table x = number of televisions in household

and % = percentages of U.S. households x 0 1 2 3 4 5 or more % 3% 11% 28% 39% 12% 7% What is the probability that a household selected at random has less than 3 televisions? Select one: a. 0.81 b. 0.39 c. 0.42 d. 0.58
Mathematics
1 answer:
Mademuasel [1]3 years ago
4 0
Probability is the study of determining the chances of an event being successful or not. To determine the probability of, say, 5 events happening, you would have to add their individual probabilities. For the probability of household having less than 3 televisions, you add the data for 2, 1 and 0 televisions.

Total Probability = 3% + 11% + 28% = 42% (or 0.42 if in decimal form)
You might be interested in
Need help badly plssssss
Ksenya-84 [330]

Answer:

translation then reflection

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Solve equation by using the quadratic formula.
Sati [7]

Answer: 1:  x=3, x=1

2:  x= -5

3:  There are 2 real solutions.

4:  There are 2 real solutions.

5:  There are no real solutions.

6.  There is 1 real solution.

7.  

8.  x= -6, x = -2

9.  x = -1/6, x=1

10.  

Explanation:

1.  The quadratic formula is

Substituting our known information we have:

2.  Rewriting the quadratic in standard form we have x²+10x-25=0. Substituting this into the quadratic formula gives us:

3.  The discriminant is b²-4ac.  For this problem, that is 20²-4(-4)(25)=400--400=800.  Since this is greater than 0, there are 2 real solutions.

4.  The discriminant in this problem is 7²-4(2)(-15)=49--120=49+120=169.  This is greater than 0, so there are 2 real solutions.

5.  The discriminant in this problem is 1²-4(-2)(-28)=1-224=-223.  Since this is less than 0, there are no real solutions.

6.  If the discriminant of a quadratic is 0, then by definition there is 1 real solution.

7.  Rewriting the quadratic we have 3x²-4x-2=0.  Using the quadratic formula we have:

8.  Factoring this trinomial we want factors of 12 that sum to 8.  6*2 = 12 and 6+2=8, so those are our factors.  This gives us:

(x+6)(x+2)=0

Using the zero product property we know that either x+6=0 or x+2=0.  Solving these equations we get x= -6 or x= -2.

9.  Factoring this trinomial we want factors of 6(-1)=-6 that sum to -5.  (-6)(1)=-6 and -6+1=-5, so this is how we "split up" the x term:

6x²-6x+1x-1=0

We group together the first two and the last two terms:

(6x²-6x)+(1x-1)=0

Factor the GCF out of each group.  In the first group, that is 6x:

6x(x-1)+(1x-1)=0

In the second group, the GCF is 1:

6x(x-1)+1(x-1)=0

Both terms have a factor of (x-1), so we can factor it out:

(x-1)(6x+1)=0

Using the zero product property, we know either x-1=0 or 6x+1=0.  Solving these equations we get x=1 or x=-1/6.

10.  Substituting our information into the quadratic formula we get:

Step-by-step explanation:

5 0
2 years ago
54.85 rounded to the nearest 1/10th percent
Iteru [2.4K]

Answer:

54.9

Step-by-step explanation:

You always round up if its 0.5 or anything .5

54.58 broken down:

The 5 is the Tens place

The 4 is the Ones place

The 8 is the Tenth place (what the question is asking for)

The 5 is the Hundredths place.

:)  Hope this helps! Please mark brainliest! :)

8 0
3 years ago
When pointing A(-6. - 12) is reflected over the y-axis to get point B, what are the
Fudgin [204]

Answer:

A

Step-by-step explanation:

under a reflection in the y- axis

a point (x, y ) → (- x, y ) , then

A (- 6, - 12 ) → B (6, - 12 )

4 0
2 years ago
40 PIONTS!!! HELP PLZ ANSWER THE QUESTIONS (IF YOU DONT ASWER THE QUETIONS THEN I WILL REPORT YOU)
allochka39001 [22]

Answer:

quadrant 1.

Step-by-step explanation:

A:(9,3)

B:(7,5)

C:(5,2)

Hope this helped you.

4 0
3 years ago
Other questions:
  • 1.05055 trillion divided by 6.005 billion<br><br>Free Points
    14·2 answers
  • Please Help!!!!!!!!!!!!!!!!!!!!
    9·2 answers
  • Melanie's car used 9 ballons to travel 306 miles. How far can she travel on 11 gallons?
    10·1 answer
  • Evaluate the following expression: (7+5b)+1 , if b = 3
    13·1 answer
  • The test statistic of zequalsnegative 2.07 is obtained when testing the claim that pequals1 divided by 4. a. Using a significanc
    6·1 answer
  • What is the midpoint of line segment AB
    11·1 answer
  • Zoe is a party planner. She orders cupcakes and sheet cakes from Creative Cakes whenever she needs beautiful cakes to serve. One
    6·1 answer
  • 3.
    15·1 answer
  • How would you compare two ratios given in words?
    7·1 answer
  • There are 8 kids at a birthday party. If there are 5 girls and 3 boys at a party, what fraction of the kids are girls?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!