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
Anastasy [175]
3 years ago
5

A student studying for a vocabulary test knows the meanings of 16 words from a list of 26 words. If the test contains 10 words f

rom the study list, what is the probability that at least 8 of the words on the test are words that the student knows? (Round your answer to three decimal places.)
Mathematics
1 answer:
gayaneshka [121]3 years ago
4 0
To get the probability that at least 8 of the words on the test are words that students know we need to do the following calculations.

<span>=[C(16,8)*C(10,2) + C(16,9)*C(10,1) + C(16,10)*C(10,0)] / C(26,10)
</span>
=0.132 
You might be interested in
Don’t mind the writing. Just trying to see if this is right?
LuckyWell [14K]

Answer:


Step-by-step explanation:

Yep you are 100% correct grate job!!

4 0
3 years ago
Read 2 more answers
HELP PLZ! I do not understand this!!
neonofarm [45]
PART 1
If I have graph f(x) then graph f(x + 1/3) would translate the graph 1/3 to the left.

For example, I have f(x) = x².Then
f(x + 1/3) = (x + 1/3)²

I draw the graph of f(x) = x² and the graph of f(x) =  (x + 1/3)² on cartesian plane to know what's the difference between them.


PART 2
If I have graph f(x) then graph f(x) + 1/3 would translate the graph 1/3 upper.

For example, I have f(x) = x².Then 
f(x) + 1/3 = x² + 1/3

I draw the graph of f(x) = x² and the graph of f(x) = x² + 1/3 on cartesian plane to know what's the difference between them.


SUMMARY
f(x+1/3) ⇒⇒ <span>f(x) is translated 1/3 units left.
f(x) + 1/3 </span>⇒⇒ <span>f(x) is translated 1/3 units up.</span>

3 0
3 years ago
Read 2 more answers
6.) Alan, Becky, Jesus, and Mariah are four students in the chess club. If two of these students will be selected to represent t
Artist 52 [7]

Let's begin by listing out the information given to us:

There are four students: n = 4

Number of students to be selected: r = 2

To calculate the combination of 2 students to be chosen, we use:

\begin{gathered} ^4C_2=\frac{n!}{(n-r)!}=\frac{4!}{(4-2)!}=\frac{4!}{2!} \\ ^4C_2=\frac{4\cdot3\cdot2\cdot1}{2\cdot1}=\frac{4\cdot3}{1}=12 \\ ^4C_2=12 \end{gathered}

Therefore, there 12 possible combinations from these

3 0
2 years ago
HELP HELP I NEED HELP ASAP
tia_tia [17]
I am pretty sure the answer is 180
5 0
3 years ago
Simplify 3^2 x 2^4 x 3^3 x 2
alex41 [277]
3²×2^4 ×3³×2=
3^5×2^5=
243 × 32 = 7776

3 0
4 years ago
Other questions:
  • Identify a reflection about the x-axis or a reflection about the y-axis of ƒ(x) = 7x2 – x3 by observing the equation of the func
    13·1 answer
  • An accelerated life test on a large number of type-D alkaline batteries revealed that the mean life for a particular use before
    13·1 answer
  • What would this be????
    15·2 answers
  • Which of the following is a feature of a credit card?
    8·1 answer
  • Rebecca is offered a job as an insurance adjuster at an
    10·1 answer
  • 19. GEOMETRY CONNECTION
    8·1 answer
  • Please helpppppp
    5·1 answer
  • Given (x+2)2-16 , solve for x
    8·1 answer
  • Dose anyone know the answers to the areas and volumes of similar solids quiz on conexxus​
    15·1 answer
  • Solve |2x + 2| = 10
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!