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
nekit [7.7K]
3 years ago
8

There are 20 students on the school's student council. A special homecoming dance committee is to be formed by randomly selectin

g 7 students from student council. How many possible committees can be formed? 5,040 77,520 390,700,800
Mathematics
2 answers:
AysviL [449]3 years ago
8 0

You can choose from 20 students for the first student, 19 for the second, 18 for the third, ..., 14 for the seventh student.

That gives you 20 * 19 * 18 * 17 * 16 * 15 * 14.

That number would allow you to write the students in different order. Since order here does not matter, any group with the same students in any order is the same group, you need to divide by the number of way you can order 7 items. Divide by 7 * 6 * 5 * 4 * 3 * 2 * 1

(20 * 19 * 18 * 17 * 16 * 15 * 14)/(7 * 6 * 5 * 4 * 3 * 2 * 1) = 77,520

Answer: 77,520

pogonyaev3 years ago
5 0

Answer: 77520

i got it right in my exam

You might be interested in
If a base is negative, how will you know whether the answer is positive or negative before evaluating it?
jeka94
You can determine if the answer is positive or negative because the even numbers are positive and the odd numbers are negative
5 0
3 years ago
Read 2 more answers
Which of the following is not an attribute of a parrellogram
Tems11 [23]

Answer: C: Parrellogram

Step-by-step explanation:

If the four sides do not connect at their endpoints, you do not have a closed shape; no parallelogram! If one side is longer than its opposite side, you do not have parallel sides; no parallelogram! If only one set of opposite sides are congruent, you do not have a parallelogram, you have a trapezoid.

4 0
3 years ago
If I was asked to think of a number and multiply it by 2, I could
Anna007 [38]
7(X+3) is the answer your welcome
3 0
2 years ago
Find the measurement parallelogram.<br> I need help please, thank you.<br> I need explanation
blondinia [14]

Answer:

2.) 145°

4.) 50°

Step-by-step explanation:

2.) First find the measure of Angle Y, since they are supplementary;

∠Z + ∠Y = 180

35 + ∠Y = 180

∠Y = 180 - 35

∠Y = 145°

So ∠X would be 145° as well

4.) First find the measure of Angle F, since they are supplementary;

∠C + ∠F = 180

130 + ∠F  = 180

∠F = 180 -130

∠F = 50°

So ∠E would be 50°

(I didn't explain it much in detail, since this question is similar to the previous that i answered :)

Hope this helps!

4 0
3 years ago
Of Bernie's insect collection, 15 out of 25 insects are butterflies. Which of the following is not another way of expressing 15
koban [17]
B is the answer for ur question :D
8 0
3 years ago
Other questions:
  • The following measurements (in picocuries per liter) were recorded by a set of helium gas detectors installed in a waste disposa
    12·1 answer
  • Y varies directly as x and y = 9 when x = 72
    7·1 answer
  • Zach's parents put $1,500 in her bank account for college tuition. At an interest rate of
    9·1 answer
  • Please I need help with this ASAP
    11·1 answer
  • Người ta dự định chuyển 78452 lít dầu từ kho A sang kho B Trong 4 ngày đầu mỗi ngày chuyển được 18214 lít dầu hỏi còn phải chuyể
    12·1 answer
  • Help Plis.......................
    6·1 answer
  • D. 11=%<br> 9<br> Express the following percent as fractions and decimals
    7·1 answer
  • John uses 1 2 3 cups of milk to make a sauce recipe, and then uses 2 1 4 cups of milk to make a cake recipe. How much milk did h
    14·1 answer
  • If m∠ABF = (7x + 31)°, m∠EBF = (3x – 6)°, and m∠ABE = (12x – 9)°, find m∠ABE.
    13·1 answer
  • Two hot air balloons are traveling along the same path away from a town, beginning from different locations at the same time. He
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!