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
Dima020 [189]
2 years ago
13

A professor has learned that three students in his class of 20 will cheat on the final exam. He decides to focus his attention o

n four randomly chosen students during the exam. What is the probability that he finds at least one of the students cheating
Mathematics
1 answer:
miss Akunina [59]2 years ago
4 0

Answer:

6%

Step-by-step explanation:

3/20=4/x

It is a indirect proportion so we reciprocal,

Then,

3/20=x/40

3×40=20×x

120=20x

x=120/20

x=6

You might be interested in
List one pair of vertical angles.
guajiro [1.7K]

Answer:

1 and 4, 2 and 3, 5 and 8, 6 and 7

Step-by-step explanation:

Any of those would work

6 0
2 years ago
5(x + 2) = 3(x + 8)
Nady [450]
If your looking for X, it would be X = 7
7 0
3 years ago
Read 2 more answers
Explain in a short paragraph how the figure below shows this is a right triangle, by the converse of the Pythagorean Theorem.
pantera1 [17]

Please provide us with the figure

3 0
3 years ago
Find the product.<br><br> 2a2(5b2+3ab+6a+1)<br><br> PLEASE HELP!!!! ASAP!!!
Anon25 [30]

Answer:

10a^{2} b^{2} +6a^{3} b+12a^{3} +2a^{2}

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
How do i calculate root equations
WITCHER [35]
It by root you mean radical equations, well then I can’t help you there, as there is too much stuff to cover.

If you mean zeros, then to find the root of a function you just find the zeros.
7 0
3 years ago
Other questions:
  • Grandpa Ernie is shrinking! Over the past 4 years his height decreased by a total of 2.4 cm.It decreased by the same amount each
    15·1 answer
  • If 2x^2+5x-12 = (2x-3)(x+4), which equation(s) should be solved to find the roots of 2x^2+5x-12=0? Check all that apply.
    7·2 answers
  • The distance of planet Saturn from the Sun is 1.5 ⋅ 109 kilometers, and the distance of planet Venus from the Sun is 1.1 ⋅ 108 k
    12·1 answer
  • I want to know what is 43 x 30 this question might be really hard?
    12·2 answers
  • Only the correct answer please
    6·2 answers
  • 15 POINTS !!!!! 9-7 3/5 = ______?(Show step by step )
    8·1 answer
  • Jake, Becky, and Max are meeting at Charley's Pizza for dinner and then plan to go to a movie. When they arrive at the pizza pla
    15·1 answer
  • The original price was $12, increased to $15. Find the percent increase
    15·1 answer
  • Solve w=9x + 5y, for y
    12·2 answers
  • Complete the equation…<br><br> Picture is included <br><br> Please answer!! No links please!!!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!