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
rosijanka [135]
3 years ago
16

How many permutations are possible for 11 objects taken 7 at a time? 330 5,040 237,600 1,663,200

Mathematics
1 answer:
USPshnik [31]3 years ago
5 0

11 choose 7 is equal to 11 choose 4. 11*10*9*8/4/3/2=330.


You might be interested in
450 high school freshmen were randomly selected for a national survey. Among survey participants, the mean grade-point average (
umka21 [38]

Answer:

The margin of error is of 0.01.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1 - 0.7}{2} = 0.15

Now, we have to find z in the Z-table as such z has a p-value of 1 - \alpha.

That is z with a pvalue of 1 - 0.15 = 0.85, so Z = 1.037.

The margin of error is of:

M = z\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

Standard deviation was 0.21.

This means that \sigma = 0.21

Sample of 450:

This means that n = 450

What is the margin of error, assuming a 70% confidence level, to the nearest hundredth?

M = z\frac{\sigma}{\sqrt{n}}

M = 1.037\frac{0.21}{\sqrt{450}}

M = 0.01

The margin of error is of 0.01.

4 0
3 years ago
Find the sum of the first 21 terms of the sequence 5,9, 13, 17, 21, ...
Scorpion4ik [409]
21(5+85)/2= 21•45= 945
8 0
3 years ago
What is 4 plus 4 hehe
Lynna [10]

Answer:

(plus = +)

<h2>4 + 4 = 8</h2>

-,-

Step-by-step explanation:

<h2>Hope it helps! </h2>
4 0
3 years ago
The school band collected $2,892 for 480 tickets sold to their spring concert. Adult tickets were $8 each and student tickets we
kakasveta [241]
A + s = 480......s = 480 - a
8a + 5s = 2892

8a + 5(480 - a) = 2892
8a + 2400 - 5a = 2892
8a - 5a = 2892 - 2400
3a = 492
a = 492/3
a = 164 <=== there were 164 adult tickets sold
5 0
3 years ago
Read 2 more answers
2(x+3)^(2)+8=0 Solve.
olga2289 [7]

Answer:

2i-3

Step-by-step explanation:

2(x+3)²=-8

(x+3)²=-4

x+3=2i

x=2i-3

7 0
3 years ago
Other questions:
  • Simplify 5x + 8y + 4x<br><br><br> 17x<br><br><br> 9x + 8y<br><br><br> 5x + 12y<br><br><br> 17xy
    14·1 answer
  • I need help finding the mean, median, mode, and range of 25.2, 45.5, 61.7, and 28.3
    11·1 answer
  • Simplify (5 √2 - 1) ^2
    12·2 answers
  • To determine the number of square centimeters in 8 square inches, multiply 8 by 6.45.
    14·1 answer
  • The engineers of a bridge estimate that the bridge will cost $3,400,000.00 to build. If 59% of the cost is used to build the met
    11·1 answer
  • Let ​ f(x)=x2−8x+19<br><br> What is the minimum value of the function?​
    6·2 answers
  • Help?????? Im very confused (in attachment )
    14·1 answer
  • What is a factor of 12
    5·1 answer
  • From a point on a circle, two perpendicular chords are drawn. One is 6 cm from the center and the other is 3 cm from the center.
    6·1 answer
  • A trail mix recipe calls for 1 1/2 cups granola, 3/4 cups raisins, and 2/3 cup of peanuts. How many cups of trail mix does the r
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!