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
ahrayia [7]
3 years ago
9

The probability that a lab specimen contains high levels of contamination is 0.15. A group of 4 independent samples are checked.

Round your answers to four decimal places (e.g. 98.7654). (a) What is the probability that none contain high levels of contamination
Mathematics
1 answer:
Lady bird [3.3K]3 years ago
5 0

Answer:

0.5220

Step-by-step explanation:

Since the probability of contamination is 0.15, the probability of no contamination is 1 - 0.15 = 0.85

The probability that they are all contaminated will be 0.85 * 0.85 0.85 * 0.85 = 0.52200625

This is 0.5220 to four decimal

You might be interested in
A tree in leilas backyard has been growing for 3 1/5 years. It is 3/4 meters tall how many meters per year?
IgorC [24]

Answer:

The tree grew 15/64 meters per year.                  

Step-by-step explanation:

Given

  • Length of a tree = 3/4 meters
  • Total time taken by the tree to grow 3/4 taller = 3 1/5 or 16/5 years

To determine

Per year growth of the tree in meters

Per year growth of the tree in meters can be determined by dividing the total length of a tree i.e. 3/4 meters by the total time taken by the tree to get 3/4 taller.

Per year growth of tree = Total Length  / Total time to grow

                                       = 3/4 ÷ 16/5

                                        = 3/4 × 5/16

                                        = [3×5] / [4×16]

                                        = 15/64 meters

Therefore, the tree grew 15/64 meters per year.                  

4 0
3 years ago
Which number should follow in this series: 64/64 9/12 6/12​
zheka24 [161]

Answer: \frac{1}{4}

Step-by-step explanation:

You can reduce the fractions, then:

\frac{64}{64}=1

\frac{9}{12}=\frac{3}{4}

\frac{6}{12}=\frac{3}{6}=\frac{1}{2}

Rewrite them as following:

1,\frac{3}{4},\frac{1}{2}

If you subtract the first number and the second number, you obtain:

1-\frac{3}{4}=\frac{1}{4}

 If you subtract the second number and the second number, you obtain:

\frac{3}{4}-\frac{1}{2}=\frac{1}{4}

Therefore, you must subtract \frac{1}{2} and \frac{1}{4} to obtain the number asked. Then, this is:

\frac{1}{2}-\frac{1}{4}=\frac{1}{4}

6 0
3 years ago
Read 2 more answers
Problem Solving World
jonny [76]

Answer:

46

Step-by-step explanation:

To solve this, add.

28 + 18 = 46

7 0
3 years ago
Read 2 more answers
which rule would apply to the expression w^2w^3. A.addition rule. B.power rule. C.distributive rule. D.quotient to difference ru
Free_Kalibri [48]
"Power rule" is the one rule among the following choices given in the question that <span>would apply to the expression w^2w^3. The correct option among all the options that are given in the question is the second option or option "B". I hope that this is the answer that has actually come to your desired help.</span>
4 0
3 years ago
A softball base is 15 x 15 inches long and wide. What is the length of the diagonal?
Finger [1]

Answer:

15 sqrt 2

Step-by-step explanation:

Use Pythagorean Theorem

a^2 + b^2 = c^2

15^2 + 15^2 = c^2

225 + 225 = 450

Find prime factors of the sq rt of 450

450 = 2 * 3 * 3 * 5 * 5

15 sqrt 2

4 0
2 years ago
Other questions:
  • The APR of Kylee's savings account is 5.6% and the interest is compounded quarterly. If the principal in Kylee's savings account
    11·1 answer
  • Let 3x^2+kx+4. determine all values of k such that the quadratic equation f(x) =0 has one real root
    15·1 answer
  • What is the solution to 3|–3x + 9| = –18?
    13·2 answers
  • 1) How would you test whether (2, -2) is a solution of the system?
    11·1 answer
  • I need help. With this p
    14·1 answer
  • An ice chest at a birthday party has a variety of
    6·1 answer
  • The sum of two numbers is -284 One number is 62 less than other find the numbers
    11·1 answer
  • Input the equation for the following line in standard form Ax + By = C. Reduce all fractional answers to lowest terms.A line tha
    14·1 answer
  • Use the elimination method to solve the system of equations. Choose the correct ordered pair. 
    11·2 answers
  • PLEASE HELP I WILL GIVE 50 POINTS! IF YOU GIVE FAKE ANSWER I WILL REPORT YOU!!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!