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
Alex
3 years ago
12

Is 12 3/4 rational or irrational

Mathematics
1 answer:
Inessa [10]3 years ago
8 0

Answer: yes

Step-by-step explanation:

All fractions are rational



You might be interested in
The television show CSI: Shoboygan has been successful for many years. That show recently had a share of 18, meaning that among
jeyben [28]

Answer:

(a) The value of P (None) is 0.062.

(b) The value of P(at least one) is 0.938.

(c) The value of P(at most one) is 0.253.

(d) The event is not unusual.

Step-by-step explanation:

Let <em>X</em> = number of households watching the show.

The probability of the random variable <em>x</em> is, P (X) = <em>p</em> = 0.18.

The sample selected for the survey is of size, <em>n</em> = 14

The random variable <em>X</em> follows a Binomial distribution with parameter <em>n</em> = 14 and <em>p</em> = 0.18.

The probability of a Binomial distribution is computed using the formula:

P(X=x)={n\choose x}p^{x}(1-p)^{n-x};\ x=0,1,2,...

(a)

Compute the probability that none of the households are tuned to CSI: Shoboygan as follows:

P(X=0)={14\choose 0}(0.18)^{0}(1-0.18)^{14-0}=1\times1\times0.06214=0.062

Thus, the value of P (None) is 0.062.

(b)

Compute the probability that at least one household is tuned to CSI: Shoboygan as follows:

P (X ≥ 1) = 1 - P (X < 1)

             = 1 - P (X = 0)

             =1-0.062\\=0.938

Thus, the value of P(at least one) is 0.938.

(c)

Compute the probability that at most one household is tuned to CSI: Shoboygan as follows:

P (X ≤ 1) = P (X = 0) + P (X = 1)

             ={14\choose 0}(0.18)^{0}(1-0.18)^{14-0}+{14\choose 1}(0.18)^{1}(1-0.18)^{14-1}\\=0.062+0.191\\=0.253

Thus, the value of P(at most one) is 0.253.

(d)

An event that has a very low probability of occurrence is known as an unusual event.

The probability of the event "at most one household is tuned to CSI: Shoboygan" is 0.253.

This probability value is not low.

Hence, the event is not unusual.

5 0
3 years ago
TUESDAY: Which of the following statements are true about quadratics? *
babymother [125]

Answer:

All of the Above are true.

Step-by-step explanation:

All of the statements are true if you evaluate them properly. I don't really wanna explain each and every choice so just trust me on this one. I got 100% on the Bellwork

3 0
3 years ago
A circle has a radius of 3. An arc in this circle has a central angle of 20 degrees.
TiliK225 [7]

Answer:

π/3 units

Step-by-step explanation:

arc length = 2πr(°/360)

                 = 2π*3(20/360)

                 = π/3 units

4 0
3 years ago
A rectangular area adjacent to a river is fenced​ in; no fence is needed on the river side. The enclosed area is 1500 square fee
ZanzabumX [31]

Answer:

a) C(x) = 15000/x + 6x +80

b) Domain of C(x)  { R x>0 }

Step-by-step explanation:

We have:  

Enclosed area = 1500 ft²   = x*y      from which     y  =  1500 / x    (a) where x is perpendicular to the river

Cost = cost of sides of fenced area perpendicular to the river  + cost of side parallel to river + cost of 4 post then

Cost = 10*y + 2*3*x + 4*20 and accoding to (a)  y = 1500/x

Then

C(x)  = 10* ( 1500/x ) + 6*x + 80

C(x) = 15000/x + 6x +80

Domain of C(x)  { R x>0 }

5 0
2 years ago
3 out of 5 picks are orange. if 12 picks are orange haw many picks are in all
xxTIMURxx [149]

Answer:

There were 20 picks total

Step-by-step explanation:

We can use a proportion to solve this problem.  Put the orange picks on top and the total picks on bottom

3 orange         12 orange

-------------- =   ---------------

5 total                x total

Using cross products

3x = 5*12

3x= 60

Divide each side by 3

3x/3 = 60/3

x = 20

There were 20 picks total

7 0
2 years ago
Read 2 more answers
Other questions:
  • F(x)=-11x-2 and g(x) =7x-4 find (f°g)(x)​
    7·1 answer
  • What is the answer to 2×1/6=
    8·2 answers
  • Using the graph of f(x) = log2x below, approximate the value of y in the equation 22y = 5.
    8·2 answers
  • Help please !!!!!!!!!!!!!!11
    7·1 answer
  • gasoline landed to walk her dog for 3/4 of a mile after it started to rain she decided to work only one half of that distance wh
    11·1 answer
  • The ratio of the number of boys and girls in a college is 7:8. If the percentage increase in the number of boys and girls be 20%
    5·1 answer
  • HELP PLEASE!!!!! Giving 100 points and brainlest to the correct answer! May have more questions after this..... PLEASE HELP ME!!
    7·2 answers
  • Which type of correlation would you expect to see between the amount of time it takes to finish a test and the grade on the test
    11·2 answers
  • A study is being conducted in which the health of two independent groups of ten policyholders is being monitored over a one-year
    6·2 answers
  • What times 1/11 equals 1?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!