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
mafiozo [28]
3 years ago
7

A consumer organization estimates that over a​ 1-year period 20​% of cars will need to be repaired​ once, 9​% will need repairs​

twice, and 4​% will require three or more repairs. If you own two​ cars, what is the probability that ​a) neither will need​ repair? ​b) both will need​ repair? ​c) at least one car will need​ repair?
Mathematics
1 answer:
DaniilM [7]3 years ago
4 0

Answer:

Step-by-step explanation:

Given that a consumer organization estimates that over a​ 1-year period 20​% of cars will need to be repaired​ once, 9​% will need repairs​ twice, and 4​% will require three or more repairs.

No of cars -2

Each car is independent of the other.

Prob that a car does not need repair = 1-0.20-0.09-0.04 = 0.67

a) Prob (neither will need repair) =0.67*0.67=0.4489

b) Prob (both will need repair) =0.33*0.33=0.1089

c) Prob (atleast one will need repair) =1- neither repair

=1-0.4489

=0.5511

You might be interested in
Find the midpoint of points A(-7,7) and B(-1,-3) graphically.
AfilCa [17]

Answer:

(3,5)

Step-by-step explanation:

Use the midpoint formula to find the midpoint of the line segment.

(3,5)

8 0
3 years ago
StartFraction 12 minus 3 y Over 2 EndFraction plus y StartFraction 2 y minus 4 Over y EndFraction for y = 3.
Neko [114]
Answer:
Step-by-step explanation:
The point slope form of the equation is expressed as
y - 7/2 = 1/2(x - 4)
Comparing with the point slope form of an equation which is expressed as
y - y1 = m(x - x1)
m represents slope
Therefore
m = 1/2
y1 = 7/2
x1 = 4
The slope intercept form of the equation of a straight line is expressed as
y = mx + c
Where c represents the intercept
Substituting y = 7/2, m = 1/2 and x = 4 into y = mx + c, it becomes
7/2 = 1/2 × 4 + c
7/2 = 2 + c
c = 2 - 7/2 = (4 - 7)/2 = - 3/2
Therefore, the y intercept is - 3/2
7 0
3 years ago
Read 2 more answers
Need help on this quadratic factoring problems
Effectus [21]
3: m= 2, -3
4: x= -1, 5/2
5: x= -1, -3
6: x= 5/2, -4
3 0
3 years ago
What is 8 4/5+7 2/3​
Citrus2011 [14]

Answer:

16 7⁄15

Step-by-step explanation:

Find the Least Common Denominator [LCD], which is 15.

7⅔ → 7 10⁄15

+

8⅘ → 8 12⁄15

15 22⁄15 → 167⁄15

I am joyous to assist you anytime.

4 0
3 years ago
Write at least 2 numerical expressions for each written phrase below. Then, solve.
zloy xaker [14]

Answer:

a. \frac{3}{5}(7)\text{ or }\frac{3\times 7}{5}

b. \frac{1}{6}(4\times 8)\text{ or }\frac{4\times 8}{6}

Step-by-step explanation:

In numerical expressions we write numbers with the mathematical symbols (  i.e. '+', '-' etc )

a. Given phrase,

Three fifths of seven,

\frac{3}{5}(7)

=\frac{3\times 7}{5}

=\frac{21}{5}

=4\frac{1}{5}

b. One sixth the product of four and eight,

\frac{1}{6}(4\times 8)

=\frac{4\times 8}{6}

=\frac{32}{6}

=5\frac{1}{3}

7 0
3 years ago
Other questions:
  • An ice cream cone is 5" deep and 2" in top diameter. One scoop of vanilla ice cream, 2" in diameter, is placed on the
    15·1 answer
  • Which is true about the volume or surface area of these prisms?
    15·1 answer
  • Dr. E. Quation says the Infant Mortality Rate of Korea shown by the expression; 7(m + 3) - 2. Is equal to his criminal success r
    7·1 answer
  • How can you know if this equation is true? 1/2 + 3/8 = 4/10 = 2/5
    10·1 answer
  • 3 1/2 pounds of honey ham for $10.25
    7·1 answer
  • The price of Stock A at 9 A.M. was​ $15.75. Since​ then, the price has been increasing at the rate of​ $0.05 per hour. At​ noon,
    11·1 answer
  • Find an<br> angle 0 coterminal to 701°, where 0°
    11·1 answer
  • PLEASE HELP THANK YOU BRANLIEST IS PROVIDED
    14·2 answers
  • What is the next term of the arithmetic sequence?<br> -2, 3, 8, 13, 18,
    6·2 answers
  • Lauren is tutoring students at the library on Saturday. If she is at the library for a total of 6 hours and she helps each 3 stu
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!