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
adelina 88 [10]
3 years ago
15

How many ways can 4 student ma be chosen from a class of 30 students is ?

Mathematics
2 answers:
snow_tiger [21]3 years ago
6 0
If the order doesn't matter then you have to apply the combination formula:

³⁰C₄ = (30!)/(4!)(30-4)! = 27,405 WAYS

andre [41]3 years ago
3 0
That's we can solve by using a combination algorithm: C^4_{30}=\frac{30*29*28*27}{4*3*2*1} = 27405
You might be interested in
62.3÷5.5 round to nearest 1000​
Marrrta [24]

Answer:

11.327

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is a perfect squares​
erica [24]

Answer:

What is a Perfect Square? A perfect square is a number which is generated by multiplying two equal integers by each other. For example, number 9 is a perfect square because it can be expressed as a product two equal integers being: 9 = 3 x 3.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Why do turtles not have shells equal to pie when their body is completely equal on all sides
Rus_ich [418]

Answer:

because they do

Step-by-step explanation:

7 0
3 years ago
Quiz
Serjik [45]

Answer:

78

Step-by-step explanation:

5^2 = 25 5^3 = 125 them two added together equals 150

6^2 = 36 so 36 plus 36 equals 72

150-72=78

8 0
3 years ago
Read 2 more answers
PLZ HELP ME ITS DUE RIGHT NOW woth 18 points
Anika [276]

Answer:

The answers to the first question are A,C,D

The answer to the second question is YZ=16

Step-by-step explanation:

(1st Question)

Since <K and <M Are equal, and both <L's are equal, KL and ML are congruent (Answer choice) because of the ASA postulate.

You need to create the following equation to find the length of KN and MN 7x-4=5x+12

(Get the "x" variable to one side)

2x-4=12

(Isolate the variable)(Remove the 4)

2x=16

(Divide the 2 by itself to remove it from the x, remember to divide both sides by 2)

x=8 (Answer Choice)

Plug in the x value into each equation

KN= 7(8)-4

KN= 56-4

KN= 52

MN= 5(8)+12

MN= 40+12

MN= 52 (Answer Choice)

MN=KN

(Second Question)

Since XWY(20) is half of XWZ(40), ZWY also equals 20.

This now proves the triangle is congruent by the AAS postulate.

Since the triangles are congruent, if XY = 16, YZ also equals 16.

8 0
3 years ago
Other questions:
  • The materials and equipment you will have include 100% alcohol, test tubes (large diameter test tubes), fermentation tubes (smal
    11·1 answer
  • Functions Question !<br> Please help with this one question!
    12·1 answer
  • A gasoline and oil mixture for a power lawn mower is 500mL of oil to 8 L of
    15·1 answer
  • Can someone help me with this? Thank you :)
    6·1 answer
  • Keisha spent 45 minutes at soccer practice on Monday, and n minutes on Tuesday. Write an expression that represents the number o
    5·1 answer
  • Which set of points does not represent a function
    15·1 answer
  • Identify the equivalent expressions of 4(2x + x – 3) – 3x + 3 by substituting x = 2 and x = 3.
    8·2 answers
  • What’s the equation for f and g?
    10·2 answers
  • I know the answer I just need a step by step explain. The answer is $1000
    8·1 answer
  • If he drank 80% of his water on his entire hike. How much did he drink? (Remember he brought 3 liters of water.)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!