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
RideAnS [48]
2 years ago
5

What is the value of y?

Mathematics
1 answer:
marta [7]2 years ago
7 0

Answer:

3y+3+y+2y=  

3y+y+2y+3=

4y+2y=6y/3=

3y

Step-by-step explanation:

You might be interested in
All the dimensions of a pentagon were multiplied by the same factor, and the area of the figure changed by a factor of 25. By wh
elena-s [515]

5


reason is because if you’re pentagon has lines of 5 then the area would be 25
8 0
2 years ago
Cameron bought four begonias in 6-in pots and a $19 fern at a fundraiser. he spent a total of $63. how much is each begonia?
nevsk [136]
Each of the begonias are $11
7 0
2 years ago
Helping the question please
BabaBlast [244]
Yes it's B. Because 67 divided by 8 is 8.375 so therefore it's equal (:
6 0
2 years ago
​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
2 years ago
Which is the correct product of the significant figures 3.278 and 4.23? a. 14 b. 13.9 c. 13.86 d. 13.865 e. 13.86594
Charra [1.4K]

The correct answer is option E. which is the product will be 13.86594.

<h3>What is the product?</h3>

Multiplication is the process of determining the product of two or more numbers in mathematics. Given numbers are 3.278 and 4.23.

The product of the two numbers will be calculated as:-

P = 3.278 x 4.23

P = 13.86594.

Therefore the correct answer is option E. which is the product will be 13.86594.

To know more about multiplication follow

brainly.com/question/10873737

#SPJ1

3 0
2 years ago
Other questions:
  • Differentiation. questions 1 and 2
    9·1 answer
  • What is the equation that represents the line
    5·1 answer
  • Which statement is true about f(x) = -6|x+5| - 2?
    8·1 answer
  • What is the greatest common factor of 24, 36, and 72?<br><br> A) 9 <br> B) 12 <br> C) 24 <br> D) 18
    9·2 answers
  • A middle school took all of its 6th grade students on a field trip to see a play. The students filled 660 seats, which was 55% o
    11·1 answer
  • Which of these is equal to 35 (8 – 3)? A. (35 + 8) – (35 + 3) B. (35 × 8 ) + (35 × 3) C. (35 × 8) – (35 × 3) D. (35 × 11)
    11·1 answer
  • Two equivalent expressions for 7x.
    11·2 answers
  • What is the measure of the larger angle in this degree?​
    8·1 answer
  • What do you prove in the base case of an inductive proof of a statement P(n) for all positive integers n?
    14·1 answer
  • In which number is the digit 5 one hundred times larger than it is in the number 253
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!