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
andrey2020 [161]
3 years ago
8

There are 10 true/false questions on a test. you do not know the answer to 4 of the questions, so you guess what is the probabil

ity that you will get all 4 answers right?
please explain how you got your answer :(
Mathematics
1 answer:
ra1l [238]3 years ago
7 0

Answer:

  1/16

Step-by-step explanation:

Of the 16 ways you can answer the 4 questions, only one of those ways has all answers correct.

Each question can be answered 2 ways, and the answer to each one is independent of the answer to any other. So, there are 2·2·2·2 = 2^4 = 16 ways to answer the 4 questions.

You might be interested in
Which expression is equivalent to (2^1/2 2^3/4)^2
dimaraw [331]

Answer:

\sqrt{2^5}

Step-by-step explanation:

2^{1/2} × 2^{3/4} = 2^{5/4}

(2^{5/4})² = 2^{5/2} = \sqrt{2^5}

6 0
3 years ago
Read 2 more answers
How many ways can a president, vis-president and treasurer be selected from a group of 15 students?
dybincka [34]

Answer:

455ways

Step-by-step explanation:

This is expressed as 15 C 3 ( C- combination)

The concept of combination is used when we talk about selection.

Now we are selecting 3 from a sample of 15

15 C 3 = 15! / (15-3)! 3! = 15 ×14×13×12!/12!×3×2

= 5 × 7 × 13 = 455ways

8 0
3 years ago
Answer?I need it pleaseeee
Elan Coil [88]

Answer: 20 dallors

Step-by-step explanation:

8 0
2 years ago
Which of these places rounds 43,754 to the lowest number?
scoundrel [369]
The tens is the lowest
8 0
3 years ago
Ray MN and ray ML are two sides of an angle. What is a name of this angle?
Setler [38]
It is (c) NML
Because MN and ML is the vertex and the point meeting is M which is the angle.
The M is the angle because the common letter of both vertex is the letter M

7 0
3 years ago
Other questions:
  • a straight highway is 100 mile long and each mile is marked by a milepost numbered from 0 to 100. a rest area is going to be bui
    15·2 answers
  • A _______ is a set of characters that uses the same typeface.
    14·1 answer
  • A building was insured for $7,500. The insurance cost $.25 per $100. What was the amount of the premium
    12·2 answers
  • In Covina, California, the population is 47,000. The population increases 18% every year. Determine how long it will take to rea
    5·1 answer
  • What is 32.043 in expanded form
    8·1 answer
  • For how many tickets is the cost the same for club members and nonmembers? Club members = $30 one time fee and $3 per ticket
    9·1 answer
  • Write the following inequality in slope-intercept form. 5x-5y≥70
    13·1 answer
  • Nahla needs some paint for her bedroom. She finds one can of white paint, three cans of green paint and three cans of blue paint
    13·2 answers
  • Evaluate 1/3 - 5/6<br><br> I NEED THIS ASAP!!!
    8·2 answers
  • David goes to college by bus.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!