A blood bank needs 6 people to help with a blood drive. 13 people have volunteered. Find how many different groups of 6 can be formed from the 13 volunteers.

Answers

Answer 1

The number of different groups of 6 that can be formed from the 13 volunteers is; 1716

How to solve permutation and combination?

This is a combination question that follows that formula;

nCr = n!/(r!(n - r)!)

We are told that the blood bank needs 6 people to help with a blood drive and that 13 have already volunteered.

Thus, number of different groups of 6 that can be formed from the 13 volunteers is;

¹³C₆ = 1716

Read more about Combinations at; https://brainly.com/question/16152577

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Related Questions

Jeffrey rented a car for spring break. It costs $100 to rent the car plus $8 per mile he was charged $1,316. How many miles did he drive.

Answers

Answer:

152 miles

Step-by-step explanation:

Answer:

he drived around 300 mile

4) -4(2a + 3) ????????????????????

Answers

Answer:

-4(2a + 3)

= -4a(2) -4(3)

= - 8a - 12

Hope it helps!

Step-by-step explanation:

-4(2a + 3)

= -4 × 2a + 3 × (-4) [-4 gets multiplied with both 2a and 3]

= -8a -12 (Ans)

What’s the slope of line 1

Answers

Answer:

the slope in line 1 is a

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

→ Utilise the gradient formula

(y₂ - y₁) ÷ (x₂ - x₁)

→ Substitute in the numbers

(2 - -6) ÷ (1--1)

→ Simplify

4

Five friends share 6 snacks equally.
How many fruit snacks will each friend get?

Answers

Each friend gets one and one fifth. (1 1/5)

Answer:

A

Step-by-step explanation:

Find the surface area of the pyramid. The side lengths of the base are equal.
there are 3 sides and a bottom

the base is 12 and the height is 17

Answers

if the side lengths of the base (12) are equal, then they are both 6. so the answer rounded to the nearest tenth is 148.7

find x=, if x-5=10 HURRY!!!!

Answers

x=15 because 15-5=10

what is the product of 3.54 and 3.7? show work / explain please!

Answers

Answer:
Picture with working out

What is the value of (Negative one-half)–4?
-16
Negative StartFraction 1 Over 16 EndFraction
StartFraction 1 Over 16 EndFraction
16

Answers

Answer: D

The answer is D, 16

Answer:

D is correct.

Step-by-step explanation:

welcome have a good day.

Which value is greater 4/5 or 70%

Answers

Answer:

4/5

Step-by-step explanation:

4/5 = .8

70% = .7

Answer:

4/5

Step-by-step explanation:

what is the equation of a line that passes through points (0,7) and( 2,8)write your answer in slope intercept form

Answers

Answer:

(0,7) and (2,8)

slope =8-7=1

          2-0=2

m=1/2 meaning slope

equation=y-7/x-o=1/2

2(y-7)=1(x-0)

2y-14=x -o

2y=1x +14

y =1/2 x +7

Step-by-step explanation:

to get the slope is y 2-y 1 divide by x 2-x 1 to get 1/2

you then take one point as (x,y)  and one of the coordinates =the slope

then you divide by the 2 on both sides in order to get y=mx + c

Find the area of the semicircle. 10

Answers

Exact Area = 25pi   square units

Approximate Area = 78.5  square units

The approximate value is found using pi = 3.14

====================================================

Explanation:

I think you meant to say "quarter circle" instead of "semicircle".

The area of a full circle with radius r = 10 is

A = pi*r^2

A = pi*10^2

A = pi*100

A = 100pi

But we only want one quarter of this. So we divide the full area by 4

(100pi)/4 = (100/4)pi = 25pi

The exact area in terms of pi is 25pi square units

If we used the approximation pi = 3.14, then we can say 25*pi = 25*3.14 = 78.5 is the approximate area

To get a better approximation, use more decimal digits in pi.

Maria had 6 feet of ribbon. She will cut the ribbon into pieces that are 2/3 of a foot long. How many pieces of ribbon will Maria have?please solve!

Answers

Answer:

2/3 x 9 = 18 divided by 3 = 6

answer is 9


3x + 80 = 12x - 1
what’s the value of x ?

Answers

Answer:

9

Step-by-step explanation:

3x+80=12x-1

80=12x-3x-1

80=9x-1

9x=80+1

9x=81

x=81/9

x=9

Will give brainliest!

Answers

A) x = -4
B) x = 4
C) y = 4
D) y = -2
E) y = -3/4x + 1

Answer:

Step-by-step explanation:

Equation for line a:

x = - 4

Equation for line b:

x = 4

Equation for line c:

y = 4

Equation for line d:

y = - 2

Equation for line e:

y = − 0.75x + 1

Someone plz help me I will give brainliest:)

Answers

"If we leave now," she said. "We'll be right on time."

"Do you have dear Mr. Henshaw? Alice, ask the clerk."

Blvd.

add ness to strange making it strangeness

I think that the broken tv is the subject

Answer:

1) "If we leave now" she said, "We'll be right on time.

2) "Do you have deer, Mr. Henshaw?" Alice asked the clerk.

3) blvd.

4) Er (Strang-er)

5) Television

Step-by-step explanation:

Hope this Helps!!

:D

Cole rides his bike to the ballfield starting from home. This
describes his trip:
A. Rides quickly downhill toward the field
B. Stops to wait for a friend
C. Rides slowly uphill toward the field
Drag a segment to each box to show the shape of the graph of
Cole's distance from home for each interval of time.
Describe the lines to chose as line 1 2 etc please

Answers

Answer: first line will be the on down the the right line 3... next the one with the straight line line 1 ..... then the fourth line slowly back upward

Step-by-step explanation:

Answer:

PartA: /

PartB: __

PartC: / its this one but less steeper(the second to last answer on the right)

Step-by-step explanation:

please help ! 2.5 : 12.5 reduce the following into ratio of whole number.??​

Answers

The answer is ratio 1:5 by reducing the ratio, 2.5 times 5 is 12.5

Solve the following system of equations graphically on the set of axes below.
y= 2x-2
y= -x+7

Answers

Answer:

x=y + 2

2

y=2(x - 1)

Step-by-step explanation:

y=2 x -2

swap sides so that all variable terms are on the left hand side

2x - 2 =y

add 2 to both sides

2x = + 2

Divide both sides by 2.

2 x = y + 2

2. 2

Dividing by 2 undoes the multiplication by 2.

x = y + 2

2

Divide y +2 by 2.

x = y + 1

2

if m1=2x° and m3=3x° what is m1

Answers

Answer:

36

Step-by-step explanation:

Using the angle addition postulate

angle 1+angle 2+angle 3=180

Angle 2 is 90 degrees,

Angle 1 is 2x degrees

Angle 3 is 3x degrees

Plug this into equation

[tex]2x + 90 + 3x = 180[/tex]

[tex]5x + 90 = 180[/tex]

[tex]5x = 90[/tex]

[tex]x = 18[/tex]

Plug 18 into 2x

[tex]2(18) = 36[/tex]

Which side lengths represent the sides of a right triangle?
A)
1, 1, 2
B)
2, 3,5
C)
5, 12, 13
D)
7, 23, 25

Answers

Answer: the answer is C

Step-by-step explanation:

My friend is a math teacher

Hope this helps

(2) Find the length of the midsegment. The diagram is not to scale.

Answers

Answer:

D

Step-by-step explanation:

D

Answer:

D i think

Step-by-step explanation:

help me out pls (math so imp)

Answers

Step-by-step explanation:

use the formula to calculate area of triangle.

1 Calcula de la medio aritmética, la mediana
y la moda. Se analizó el IVA que se oplico
en diversos países europeos, a la compra de
obras de arte. Los resultados obtenidos
fueron los siguientes:
PAIS
España 0,16
Holia 0,20
Belgica 0,06
Holanda 0.06
Alemania 0,07
Portugal 0,17
Luxemburgo 0,06
Finlandia 0,22.​

Answers

Answer:

Step-by-step explanation:

orms of volunteering can be applied to the different roles that people take within ... volunteer motivations and looks to develop a typology of sports volunteers. ... diversity for their effectiveness as a policy tool and for government support. ... International Journal of Sport Policy and Politics 4, 2, 187–200 . ... text, however. For .

Nathan Reynolds bought a car for $15,000. He made a down payment of $3,000. Nathan secured a loan for the balance of the purchase price at 8 percent interest for four years.
determine the monthly payment and total interest

Answers

Answer:

1) The monthly payment is approximately $292.96

2) The total interest is approximately $2,061.84

Step-by-step explanation:

1) The financing method Nathan Reynolds applied to buy the car is given as follows;

The purchase price of the car = $15,000

The down payment made for the car = $3,000

The

The interest on the loan he took for the balance of the purchase price, R = 8%

The number of years for which he took the loan, n = 4 years = 48 months

We have;

The balance of the purchase price = (The purchase price of the car) - (The down payment made for the car)

∴ The balance of the purchase price = $15,000 - $3,000 = $12,000

The balance of the purchase price = $12,000 = The loan Nathan secured

The monthly payment on a loan is given by the following formula

[tex]A = P \times \dfrac{r \cdot (1 + r)^n}{(1 + r)^n - 1}[/tex]

Where;

A = The payment amount made  monthly

P = The principal or loan amount = $12,000

r = The interest rate divided by 12 = R/12 = 8/12 = 2/3

n = The number of months the monthly payment will be made = 48 months

By plugging in the variable values, we get;

[tex]A = 12,000 \times \dfrac{\dfrac{2}{300} \times \left (1 + \dfrac{2}{300} \right ) ^{48}}{ \left (1 + \dfrac{2}{300} \right )^{48} - 1} = 292.955068099 \approx 292.96[/tex]

Therefore, the payment amount made  monthly, A ≈ $292.96

2) The total payment made in the 48 months = A × 48 = 292.955068099 × 48 ≈ 14,061.84

The total payment made in the 48 months ≈ $14,061.84

The total interest = (The total payment made in the 48 months) - (The loan amount)

∴ The total interest = $14,061.84 - $12,000 ≈ $2,061.84

Dan drives 23 miles to work every day. He works 5 days a week. How many miles does he travel to and from work over 52 weeks?

Answers

Answer:

Step-by-step explanation:

They make it sound like it is 23 miles one way.

2(23)5(52)

11960 miles

Three calculators cost as much as seven mugs. Each calculator costs $12 more than each mug. What is the cost of one mug?

Answers

Answer:

3.60

Step-by-step explanation:

3c=7m

c=m+12 solve for m

To obtain the value of one unknown quantity linear equation in one variable can be formed. The cost of one mug is given as $21.

What is a Linear equation?

A linear equation is a equation that has degree as one.

To find the solution of n unknown quantities n number of equations with n number of variables are required.

Given that,

The cost of 3 calculators = The cost of 7 mugs.

The cost of each calculator is $12 more than each mug.

Suppose, cost of each mug be x.

And, cost of each calculator is x + 12.

As per the question the following equation can be made,

7 ×(x + 12) = 3x

=> 7x - 3x = 84

=> 4x = 84

=> x = 21.

Hence, the cost for one mug is $21.

To know more about linear equation click on,

brainly.com/question/11897796

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Can someone help me please?! I’ll make you brainlest.

Answers

6256 I think I used a online calc sry if wrong

x2 + 3x + 2 by x + 1​

Answers

Answer:

x²+3x+3

Step-by-step explanation:

hope it helps you

please mark me as brainlist

5x+2 x x+1
5x+2x+1
7x + 1

Could someone please help me with this

Answers

The first number is 3 and the second is 18

what's the difference between five times a number and twelve

Answers

Step-by-step explanation:

Answer: Difference between five tmes a number and twelve is seven

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