How many different ways can teams of four members be formed from a
class of 20 students?
A) 5
B) 80
C) 4,845
D) 116,280

Answers

Answer 1

Answer:

20C4=4845

Step-by-step explanation:


Related Questions

i need to know what x is

Answers

Answer:

X would most likely be 10

Step-by-step explanation:

Divide j by 9 and the multiply the quotient by 2

Answers

Answer:

Step-by-step explanation:

you will need to do:

j/9*2=2j/9

Simplify: this please

Answers

Answer:

[tex]16\sqrt{3}[/tex], so therefore:

none of the above

While working a summer job, London earned $182 in 7 hours. Find the
rate of change.

Answers

Answer:

31hr

Step-by-step explanation:

Lonnie plans to join the gym. He must pay a $35 membership fee. He will
then pay $5 each month. What is the slope?

Answers

Answer: 5

Step-by-step explanation:

According to LIMRA, 77% of husband-wife families with kids under 18 years old have life insurance. A random sample of six husband-wife families was selected. What is the probability that five or more families have life insurance?

Answers

Answer:

0.5819 = 58.19% probability that five or more families have life insurance

Step-by-step explanation:

For each family, there are only two possible outcomes. Either they have insurance, or they do not. The probability of a family having insurance is independent of other families. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

77% of husband-wife families with kids under 18 years old have life insurance.

This means that [tex]p = 0.77[/tex]

A random sample of six husband-wife families was selected.

This means that [tex]n = 6[/tex]

What is the probability that five or more families have life insurance?

This is

[tex]P(X \geq 5) = P(X = 5) + P(X = 6)[/tex]

In which

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 5) = C_{6,5}.(0.77)^{5}.(0.23)^{1} = 0.3735[/tex]

[tex]P(X = 6) = C_{6,6}.(0.77)^{6}.(0.23)^{0} = 0.2084[/tex]

[tex]P(X \geq 5) = P(X = 5) + P(X = 6) = 0.3735 + 0.2084 = 0.5819[/tex]

0.5819 = 58.19% probability that five or more families have life insurance

Kelly wants to buy cupcakes for her family. The radius of the cupcake is 12
inches, what is the distance around the cupcake? *
Your answer

Answers

Answer:

75.4 inches

Step-by-step explanation:

circumference = 2πr = 24π ≅ 75.4 inches

It's really more of a tubcake than a cupcake.

Simplify the expression 43 + 2(3 − 2)

Answers

Answer:

))))))

Step-by-step explanation:

43+2(3-2)=43+2*3-2*2=43+6-4=45

Answer:

45

Step-by-step explanation:

43 + 2(3-2)

43 +2 (1)

43 + 2

45

PLS HELP!! FIND X AND Y

Answers

Answer:

x=110

y=70

Step-by-step explanation:

sddefgyuikohffuioo

I need this help me please

Answers

Answer:

 I think its B

Step-by-step explanation:

Pn= 14 ao=6
Please help me

Answers

creo que es 231 en total :7-2:al 231


The side lengths of a triangle are (5x + 1), (6x - 10), and (6x + 2). Write an expression in simplest
form fok the perimeter of the triangle.
A. 17x - 7
В. 17x+13
C. 10x
D. 30x

Answers

Answer:

A

Step-by-step explanation:

so the perimeter is the sum of all the sides which would be

(5x+1)+(6x-10)+(6x+2)

= 5x+1+6x-10+6x+2

=17x-7

which is A

if my answer helps please mark as brainliest.

Solve the system of linear equations. - 3x + 5y = 13 x + 4y = -10 ​

Answers

Answer:

x = -6 and y = -1

Step-by-step explanation:

Triangle M N O is shown. Angle O N M is a right angle. Angle N O M is 40 degrees and angle L M N is 50 degrees.
Given right triangle MNO, which represents the value of cos(M)?

StartFraction O N Over M N EndFraction
StartFraction M N Over M O EndFraction
StartFraction O N Over M O EndFraction
StartFraction M N Over O N EndFraction

Answers

Given:

In triangle MNO, angle ONM is a right angle. Angle NOM is 40 degrees and angle LMN is 50 degrees.

To find:

The value of cos(M).

Solution:

In a right angle triangle,

[tex]\cos \theta=\dfrac{Base}{Hypotenuse}[/tex]

Draw a diagram using the given information.

In triangle MNO, angle ONM is a right angle so its opposite side MO is the hypotenuse. For vertex M, MN is the base of the triangle. So,

[tex]\cos (M)=\dfrac{MN}{MO}[/tex]

Therefore, the correct option is B.

Answer:

it is b

Step-by-step explanation:



In 2010 there were 2000 American lions in a conservation park in Wisconsin. The lion population is decreasing
by 8% every year. Which of the following functions models the lion population after x years?

Answers

Step-by-step explanation:

After each year, the new population of the lions is 100% - 8% = 92% of the population of the lions the year before.

Hence our exponential base should be 0.92, indicating exponential decay. (A)

Answer:

after each year the new population of the lions

is 100% - 8% is equals to 92% of the population of the lion year before

Hence our exponential base should be 0.92 (A)

Solve each inequality, and then drag the correct solution graph to the inequality.

Answers

Do you have the inequalities and graphs/options?

Answer:

Step-by-step explanation:

Which expression is equivalent to
- 1/3(6x+18)+3x+5 help please

Answers

Answer:

Step-by-step explanation:-1/3(6x+18)+3x+5= -2x - 6 + 3x + 5 = x - 1. QED

Pizza Guy pizza delivery time for a pizza is
approximately normally distributed with a
mean of 22 minutes and a standard deviation
of 5. Pizza Guy guarantees delivery within 30
minutes or the pizza is free. What percent of
customers will get a free pizza?
a) 3.5% b) 4.5% c) 5.0% d) 5.5% e) 6.5%

Answers

Answer:

5.5%

Step-by-step explanation:

the pizza is free 5.5 so he need to deliver the pizza on time

One number is one more than a second number. Five times the first is 6 less than 4 times the
second. Find the numbers.

Answers

9514 1404 393

Answer:

  the numbers are -10 and -11

Step-by-step explanation:

Let x represent the second number. Then the first number is x+1, and the relation can be written ...

  5(x+1) = 4x -6

  x = -11 . . . . . . . . subtract 4x+5

The first number is -10; the second number -11.

parent function is y = x + 4. If that parent function is vertically stretched to become 4 times larger than the parent function, what is the new function it becomes after this transformation

Answers

y= 4x + 4

Behebdhdbsnsbdh

Josh's sink leaks 12 of a gallon of water in 14 of an hour. How many
gallons of water does Jacob's sink leak in 2 days?

Answers

Answer: is 14,400 maybe hopefully who knows ‍♂️

Catherine and Joseph together bought a video game for $16.40. Joseph contributed $7.80.
Approximately what percent of the total cost did Catherine contribute? * DS
(1 Point)
How do you get the answer

Answers

Answer:

16.40-7.80= 8.608.60/16.40×100= 52.43%

Answer: 52.4 percent

Step-by-step explanation: So you'd want to subtract 7.80 from 16.40 to get 8.60. Then you'd multiply that by 100 which would give you 860. After you've done that you want to divide 860 by 16.40.

Answer these questions please:

What step did the error come in?

What did they do wrong ?

Answers

Answer:

Step 1,                 4=3(d+1)-5   should be 4=3d+3-5

Step-by-step explanation:

.
Simplify the expression below
4(2x+8y+9)-3x+40
plz help

Answers

Answer:

5x+32y+76

Step-by-step explanation:

First, distribute.

4 x 2x = 8x

4 x 8y = 32y

4 x 9 = 36

Then, combine like terms.

8x - 3x = 5x

36 + 40 = 76

And that leaves 5x+32y+76

4(2x + 8y + 9) -3x + 40
= 8x + 32y + 36 - 3x + 40
= 8x - 3x + 32y + 36 + 40
= 5x + 32y + 76
So, in conclusion, the expression: 4(2x + 8y + 9) -3x + 40 simplified is: 5x + 32y + 76.

The fifth term of an arithmetic sequence is 23 and the 12th term is 72? Determine the first three terms of the sequence and the nth term​

Answers

Answer:

the first term is a1

the distance between the numbers is d

we have:

a5 = a1 + 4d = 23

a12 = a1 + 11d = 72

so we have the equation:

a1 + 4d = 23

a1 + 11d = 72

=> a1 = -5

d = 7

=> an = -5 + 7(n - 1) = 7n - 12

with an = 7n - 12

=> a2 = 2

a3 = 9

so the first three terms is -5; 2; 9

72 is 8 times as many as 64

Answers

Answer:

False.

Step-by-step explanation:

72 does not equal 64x8.

Hope I helped!

# 1 What is the area of the trapezoid
with the following dimensions:
b1= 5 in
b2= 2 in
h= 7in

Answers

Answer:

24.5 inches

Step-by-step explanation:

area of trapezoid: (b1 + b2 /2) h

what is the common denominators for 2/4 and 7/8​

Answers

Answer:

8

Step-by-step explanation:

four and eight are both factors of 8.

HELP I’m being timed!!!

Answers

The answer is 54.

Volume is height times width times length. Since a cube has equal sides, you do 3 times 3 times 3. You get 27. Since there are two cubes you do 37 times 2 and get 54.

I’ll give brainliest please help

Answers

answer is 11 boy now enjoyyyyyyyyy

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