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
77julia77 [94]
2 years ago
14

-1/12 to the second power? Halp me plz

Mathematics
2 answers:
Mademuasel [1]2 years ago
8 0
-1/12 to the second power is 1 I think I really tried I hope this helps
Alona [7]2 years ago
3 0

Answer:

1/144

Step-by-step explanation:

(-1/12)^2

(-1/12)*(-1/12)

1/144

You might be interested in
​41% of U.S. adults have very little confidence in newspapers. You randomly select 10 U.S. adults. Find the probability that the
lys-0071 [83]

Answer:

a) 0.2087 = 20.82% probability that the number of U.S. adults who have very little confidence in newspapers is exactly​ five.

b) 0.1834 = 18.34% probability that the number of U.S. adults who have very little confidence in newspapers is at least​ six.

c) 0.3575 = 35.75% probability that the number of U.S. adults who have very little confidence in newspapers is less than four.

Step-by-step explanation:

For each adult, there are only two possible outcomes. Either they have very little confidence in newspapers, or they do not. The answers of each adult are independent, which means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

​41% of U.S. adults have very little confidence in newspapers.

This means that p = 0.41

You randomly select 10 U.S. adults.

This means that n = 10

(a) exactly​ five

This is P(X = 5). So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 5) = C_{10,5}.(0.41)^{5}.(0.59)^{5} = 0.2087

0.2087 = 20.82% probability that the number of U.S. adults who have very little confidence in newspapers is exactly​ five.

(b) at least​ six

This is:

P(X \geq 6) = P(X = 6) + P(X = 7) + P(X = 8) + P(X = 9) + P(X = 10)

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 6) = C_{10,6}.(0.41)^{6}.(0.59)^{4} = 0.1209

P(X = 7) = C_{10,7}.(0.41)^{7}.(0.59)^{3} = 0.0480

P(X = 8) = C_{10,8}.(0.41)^{8}.(0.59)^{2} = 0.0125

P(X = 9) = C_{10,9}.(0.41)^{9}.(0.59)^{1} = 0.0019

P(X = 10) = C_{10,10}.(0.41)^{10}.(0.59)^{0} = 0.0001

Then

P(X \geq 6) = P(X = 6) + P(X = 7) + P(X = 8) + P(X = 9) + P(X = 10) = 0.1209 + 0.0480 + 0.0125 + 0.0019 + 0.0001 = 0.1834

0.1834 = 18.34% probability that the number of U.S. adults who have very little confidence in newspapers is at least​ six.

(c) less than four.

This is:

P(X < 4) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{10,0}.(0.41)^{0}.(0.59)^{10} = 0.0051

P(X = 1) = C_{10,1}.(0.41)^{1}.(0.59)^{9} = 0.0355

P(X = 2) = C_{10,2}.(0.41)^{2}.(0.59)^{8} = 0.1111

P(X = 3) = C_{10,3}.(0.41)^{3}.(0.59)^{7} = 0.2058

So

P(X < 4) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) = 0.0051 + 0.0355 + 0.1111 + 0.2058 = 0.3575

0.3575 = 35.75% probability that the number of U.S. adults who have very little confidence in newspapers is less than four.

5 0
3 years ago
Which is the quotient of 17. 51 +3.4?
myrzilka [38]

Answer:

5.15

Step-by-step explanation:

17.51 / 3.4 = 5.15

7 0
3 years ago
Read 2 more answers
A triangle has angles that measure 99° and 11°. <br>  <br> What is the measure of the third angle?
Thepotemich [5.8K]
Triangle, sum of all 3 angles = 180

so 180 - (99 + 11) = 180 - 110 = 70

answer: the third angle = 70
6 0
3 years ago
Read 2 more answers
An artist makes paperweights in the shape of square pyramids. The paperweights are filled with yellow sand. How much sand does t
sattari [20]

Answer: he needs to mesure

Step-by-step explanation:

4 0
2 years ago
What is the Volume of this Prism?
gavmur [86]

Answer:

240

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • As shown in the illustration, Alexa had a negative balance in her checking account before depositing a $47.00 check. What is the
    10·1 answer
  • Determine whether the following is a statistical question. In general how tall are giraffes? Help please
    11·2 answers
  • Which inequalities are true? Check all that apply
    14·2 answers
  • Look at the figure below: Which is the tangent to the circle? A. Segment RO B. Line MN C. Line PQ D. Segment ST
    5·2 answers
  • MORNING LOVES! LETS TALK ABOUT 7TH GRADE MATH!
    15·2 answers
  • A. 3.9<br><br> B. 1.0<br><br> C. 1.7<br><br> D 3.3
    6·1 answer
  • Is b = 15 a solution to the equation 4b - 20 = 40?
    6·2 answers
  • You put $8,595 into a savings account for 1 year earning 2.4% APR. How much interest will you earn at the end of the year?
    15·1 answer
  • Yoko has to carry 290 apples from a farm to the market. How many baskets will she need, given that each basket can hold 43 apple
    5·2 answers
  • Identify next three numbers in this sequence: 3, 12, 6, 24, 18, …
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!