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
Oksanka [162]
3 years ago
5

in a multiple choice test there are 10 questions. each question has 5 choices how many ways can they complete the test no two co

nsecutive answers
Mathematics
1 answer:
klio [65]3 years ago
5 0

Answer:

1310720

Step-by-step explanation:

Given,

Total number of questions = 10,

Number of choices = 5,

If there are no two consecutive answers,

That is, if we have options a, b, c, d and e for each question,

Then, a could not be the answer of two consecutive questions,

We could pick 1 out of 5 answers for the first question and then for the remaining 9 questions we have only have 4 choices,

Hence, the total number of ways = 5 × 4 × 4 × 4 × 4 × 4 × 4 × 4 × 4 × 4

=5\times 4^9

=1310720

You might be interested in
Solve the equation. 2x squared-3x+1=0
natali 33 [55]

2x^2-3x+1=0\\\\2x^2-2x-x+1=0\\\\2x(x-1)-1(x-1)=0\\\\(x-1)(2x-1)=0\iff x-1=0\ \vee\ 2x-1=0\ \ \ \ |+1\\\\x=1\ \vee\ 2x=1\ \ \ |:2\\\\\boxed{x=1\ \vee\ x=0.5}

4 0
3 years ago
Compute.
Sholpan [36]
<span>6 yr 7 months+ 2 yr 11 months = ?
6 yr + 2 yr = 8 yr

7 months + 11 months = 18 months = 1 yr 6 months

8 yr + </span>1 yr 6 months = 9 yr 6 months

answer is C<span>. 9 yr 6 months</span>
8 0
3 years ago
Bob used identical cubes to build a rectangular tower that is 25 cubes tall, 5 cubes wide, and 6 cubes long. Beatrice used the s
Mazyrski [523]

Answer:

ok so first we have to find out how meaning cubes are in each tower so

bob 25*5*6=750

beatrice 12*3*5=180

ok so we want to see how many extra layers bob can add on with beatrices blockes so from looking at bobs tower we can see that 5*6 each layer is 30 so

180/30=6

so bobs will be 31 blocks tall

Hope This Helps!!!

3 0
2 years ago
I need help plzzzzzzz
Gre4nikov [31]
6) C, 7) B, 8) B, a spring scale is one tool that can be used to measure force. Explain that a spring scale measures force in units called newtons.
5 0
2 years ago
The complex number -5i has the complex trigonometric form of 5(cos 270° + isin270º)
luda_lava [24]

Answer:

  True

Step-by-step explanation:

Evaluating the proposed trigonometric form, we get ...

  5(cos(270°) +i·sin(270°))

  = 5·cos(270°) +5i·sin(270°)

  = 5·0 +5i·(-2)

  = 5i

The statement is true.

6 0
3 years ago
Other questions:
  • Explain how to compare 0.7 and 5\8
    13·2 answers
  • 10 = 2 + a help meeeee
    11·2 answers
  • Is my answer correct?
    10·2 answers
  • The first occurrence of the highest temperature in the
    13·2 answers
  • How do you do 43.552 divided by 39.4?
    12·1 answer
  • What is less 1 than 2?
    8·2 answers
  • Morgan is reupholstering an old chair with two circular cushions. Each cushion has a circumference of 7.85 feet. He will need tw
    6·2 answers
  • 3MIN LEFT PLEASE HELP ME FAST
    10·1 answer
  • Can you guys help me answer question 1 and 2
    11·1 answer
  • Hi guys please help meee
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!