Hugo and Viviana work in an office with ten other coworkers. Out of these 12 workers, their boss needs to choose a group of four to work together on a project. Suppose Hugo and Viviana absolutely refuse, under any circumstances, to work together. Under this restriction, how many different working groups of four can be formed

Answers

Answer 1

Answer:

450

Step-by-step explanation:

The total number of possible working groups of 4 workers selecting from 12 workers is the number of ways of selecting 4 persons from 12 persons

[tex]=\binom{12}{4}=\frac{12\times 11 \times 10 \times 9}{1\times 2 \times 3\times 4}=495[/tex]

The total number of possible groups of 4 workers in which 2 persons (Hugo and Viviana) always come together

[tex]= \binom {12-2}{4-2}=\binom {10}{2}=\frac{10\times9}{1\times2}=45[/tex]

So, the total number of possible working groups in which Hugo and Viviana are not working together in any of the groups [tex]= 495-45=450[/tex].


Related Questions

Six years ago $1.200 was put in the bank and in the end earned $485 of simple interest. What was
the interest rate for this bank account?

Show your work
I=
P=
R=
T=

Answers

Correct principal is $1200.

Answer:

R = 6.736%

Step-by-step explanation:

Formula for simple interest is;

Interest = PRT/100

We are given;

Principal; P = $1200

Time; T = 6 years

Interest; I = $485

Rate; R =?

From, Interest = PRT/100, we have;

485 = 1200 × R × 6/100

Making R the subject gives;

R = 485 × 100/(6 × 1200)

R = 6.736%

I'LL GIVE BRAINLIEST TO FIRST ACTUAL ANSWER AND A LOT OF POINTS TO THE REST JUST HELP ME OUT- Solve and check: ½ (c – 24) + 2/3c = 9


c = 18

c = 126

c = 1 1/6

c = 17

Answers

Answer:

its 18

I made sure to check

It’s 18 I checked 2 times to make sure

Find the length of the hypotenuse.

a. 12
b. 6
c. 5
d. 18

Answers

Answer:

B. 6

Step-by-step explanation:

1) Take sin45

2) sin45= 3√2/ x

3) 3√2/sin45

4) x=6

Where x = hypotenuse

and sin 45 is opposite over adjacent


What is the first step in isolating the variable in this equation?
(½)p + 75 = 100
A)
Subtract 75 from both sides.
B)
Subtract ½ from both sides.
C)
Divide both sides by 75.
D)
Divide both sides by ½.

Answers

Answer:

A. subtract 75 from both sides

. The graph below shows the amount of money spent on a homeowners insurance bill and the period of time passed. Based on the information in the graph, how much will the Jones family spend on homeowners insurance after 9 months?

Answers

Answer:

$450

Step-by-step explanation:

First, find an equation that represents the proportional relationship between number of months (x) and amount spent (y).

A proportional equation can be represented in the form, y = kx, where,

k = constant of proportionality = y/x

Using a point on the line, (1, 50),

k = 50/1 = 50.

Substitute k = 50 into y = kx

The equation would be:

y = 50x

After 9 months (x), they would pay the following:

Substitute x = 9 into y = 50x

Thus:

y = 50(9)

y = 450

A Toyota Sienna sells for $41,899. A year later, the value is $36,469. What is the percent change to the nearest tenth of a percent

Answers

13% DECREASE or if they ask for negatives it’s -13%


12.9597...% or when rounded to the nearest tenth it is 13%

Brian deposited $1,075 in an account that pays 2.35% simple interest for 3 ½ years. (9 pts.) How much total interest did the account earn? ______________ What is the ending balance in the account? ______________ How much interest did the account earn in the first year? _______________

Answers

Answer:

The total interest the account earned was $88.41.

The ending balance in the account is $1,163.41.

The account earned $25.26 in interests in the first year.

Step-by-step explanation:

The simple interest is one that does not accumulate to the initial capital, that is to say that the capital does not accumulate over the years.

Therefore, if Brian deposited $ 1,075 in an account with an interest of 2.35% per year for 3 and a half years, to obtain the total interest generated by the account, the following calculation must be performed:

(1,075 x 2.35 / 100) x 3.5 = X

25.2625 x 3.5 = X

88.41 = X

Thus, the interest generated during the first year was $ 25.26, while the accumulated interest during 3 and a half years was $ 88.41. In turn, since 88.41 + 1,075 equals 1,163.41, that is the resulting amount after the end of the investment.

Hey guys im board if u answer on my last question and on this one ill give u brainlyiest

Answers

Answer:

cool

Step-by-step explanation:

Helppp I’ll mark brainliest

Answers

Answer:

a

Step-by-step explanation:

keep change flip so 9/10 x 5/2 =45/20 and simplified is 2 1/4

A. because 9×5 =45 and 10×2=20 =45/20 we simplify and 9/4 and still simplify then 2 1/4 is the answer

Need help for this one!

Answers

(x+3 ; y-5)

If you have (-2 ; 3) that means x = -2 and y = 3 so:

(-2+3 ; 3-5) = (1 ; -2)

The ratio of the number of boys to the number of girls at a school is 4:5. If there are 120 boys, how many students are there altogether?

Answers

Answer: 270 students altogether

There are 150 girls.

what is the value of x? Help asap please​

Answers

Answer:

x = 30

Step-by-step explanation:

A triangle's angles add up to 180

Also, angles on a straight line add up to 180

180-100 = 80

80+70=150

180-150=30

Answer:

x = 30

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

100° is an exterior angle of the triangle, then

x + 70 = 100 ( subtract 70 from both sides )

x = 30

The map below shows the locations of the houses of Maria Reese and Paul.what are the coordinates of Steve's house who lives 2 miles form Paul and 1 mile form Reese. Please help

Answers

Answer:

Coordinates of Steve's House are S (3,2)

The required coordinate of the Steves's house is (3,2).

The map below shows the locations of the houses of Maria Reese and Paul, coordinates of Steve's house who lives 2 miles from Paul and 1 mile from Reese is to be determined.

What is coordinate?

Coordinate, is represented as the values on the x-axis and y-axis of the graph

Here,
Since Steve's house lives 2 miles from Paul's, So the Y coordinate of Steve's house will raise to 2 more than the Y coordinate of Paul, So Y = 0 + 2 = 2
Now, Steve's house lives 1 mile from Reese x coordinate of Steve's house will raise to 1 more than the x coordinate of Reese, So X = 2 + 1 = 3

Thus, the required coordinate of the Steves's house is (3,2).

Learn more about coordinate here:

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Charmaine runs 7 miles in 80 minutes. At the same rate, how many miles would she run in 64 minutes?

Answers

Answer:

Charmaine would run 5.6 miles in 64 minutes

Step-by-step explanation:

7*64/80=5.6

I hope this helped you, please mark this as the brainiest. Have a good day/night!

Amelia wants a rearrange the furniture in her room.She is makes a scale drawing of her rectangular room,in which every 2 inches represents 5 feet.On her scale drawing ,the area of the room 24.96 room inches.Of one side of her room is 12 feet long, how long is the other side of her room, in feet?



Pls And thanks

Answers

Answer:

12.8

Step-by-step explanation:

13 feet is the length of the other side of the room.

What is the area of the rectangle ?

The formula for area is equal to the product of length and breadth of the rectangle. Whereas when we speak about the perimeter of a rectangle, it is equal to the sum of all its four sides.

Given here, 2inches =5feet thus 1 inch is equivalent to 5/2 feet and let the length of the other side is x

now area of the room is 24.96 inches²

Thus in feet the area is 24.96×(5/2)²=156 feet²

Also 12 × x = 156

             x  = 13 feet

Hence the length of the other side is equal to 13 feet

Learn more bout the area of the rectangle here:

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What is the cos(A) as a fraction

Answers

Answer:

cos A= 8/17

Step-by-step explanation:

cos theta = adj / hyp

5m+ 4 -m + 3/5 - 15m​

Answers

Final [tex]-11m + \frac{23}{5}[/tex]

Steps/Reasons/Explanation:

Question: Solve [tex]5m + 4 - m + \frac{3}{5} - 15[/tex].

Step 1: Collect like terms.

[tex](5m - m - 15m) + (4 + \frac{3}{5})[/tex]

Step 2: Simplify.

[tex]-11m + \frac{23}{5}[/tex]

~I hope I helped you :)~

Find the area of a square with side length of 4x.

Answers

Answer:

16x²

Step-by-step explanation:

since all sides of a square are equal, we just multiply 4x by 4x. this gives us 16x².

The area of square with side length 4x is 16x.

What is Square?

A square is a two-dimensional closed shape with 4 equal sides and 4 vertices.

Given,

The side length of a square is 4x

We need to find the area of square.

As we know that area of square = 4a.

Where a is the length of side of a square.

In a square all the four sides will have same length.

a=4x

Area of square=4(4x)

=16x

Hence the area of square with side length 4x is 16x.

To learn more on Square click:

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Happy new year,
add 2000 + 21 = 2021
trying to be fun and creative.

Answers

HAPPY NEW YEAR:)

not only today

always be fun and creative

Answer:

2000+21=2021

its a very cool thing u got inur mind!!

Find the domain and range of the function represented by the graph.

Answers

domain: [1,5]
range: [1,4]

Solve –4x + 2(5x – 6) + 2x = 44 for x. Question 7 options: x = –9 x = –5 x = 12 x = 7

Answers

Answer:

x = 7

Step-by-step explanation:

[tex] - 4x + 2(5x - 6) + 2x = 44[/tex]

[tex] = > - 4x + 10x - 12 + 2x = 44[/tex]

[tex] = > 8x - 12 = 44[/tex]

[tex] = > 8x = 44 + 12 = 56[/tex]

[tex] = > x = \frac{56}{8} = 7[/tex]

HELPPPP ME PLEASEEEE ASAP PLEASEEEEE

Answers

Answer:

number one is 90°

Step-by-step explanation:

number 9 is an acute angle

Answer:

1. Perpendicular

2. Complementary

3. A vertex

4. Midpoint

5. Vertical

6. Angle bisector

7. Supplementary

8. Coplanar

9. An acute angle

10. Congruent

Mia Chloe and tony entered their

Answers

Answer:

Option A

Step-by-step explanation:

We know that Mia's frog only jumped [tex]\frac{4}{5}[/tex] the distance of Chloe's frog - which means that Mia's frog must be behind Chloe's frog. Therefore, Mia's frog must also not be in first place.  

We also know that Tony's frog jumped [tex]1\frac{1}{4}[/tex] the distance of Chloe's frog - meaning that Tony's frog jumped further than Chloe's frog, since it is above 1. So, Tony's frog is ahead of Chloe's frog. Therefore, Chloe's frog cannot be in first place either.

Let's look at the clues gathered so far:

Tony's frog is ahead of Chloe's frog. Mia's frog is behind Chloe's frog. Mia's frog is not in first place.

Using logic, the only option that meets these requirements would be option A. Tony would be ahead of Chloe, Mia would be behind Chloe, and neither of the girls' frogs would be in first place. You could also use the process of elimination to get rid of the other answers.

Don't steal points
its not cool
i WILL report
and also
answer this and u could have a chance to get brainliest
ill be asking 10 questions
whoever has the best answer in any of these ill give brainliest :D

Answers

Answer:

yes

no

yes

Step-by-step explanation:

1. Yes

2.No

3.Yes

That’s the answer :)

Which is equivalent to 10(-2 2/5)

Answers

4th option I’m pretty sure

The equivalent expression is,

⇒ - 24

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The expression is,

⇒ 10 (- 2 2/5)

Now,

Since, The expression is,

⇒ 10 (- 2 2/5)

Solve as;

⇒ 10 × ( - 12/5)

⇒ - 10 × 12/5

⇒ - 2 × 12

⇒ - 24

Thus, The expression is equivalent to - 24.

Learn more about the mathematical expression visit:

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What is the slope of the graph/ What does the slope tell you?

Answer both for brainliest

Answers

Answer:

Slope= 30

Step-by-step explanation:

What does the slope tell me?

It tells me that every time I try to find the slope with different points I get 30 for slope.

I need help (x^2 +3) ÷ (x-1) ​

Answers

Answer:

[tex]x + 1 + \frac{4}{x - 1} [/tex]

Use proportional reasoning to determine the value of a in the proportion shown below.
a=1
a=25
a=10
a=15

Answers

Answer: a = 10

Step-by-step explanation:

3/5 = a + 5/25

Multiply both sides by 25 to get rid of it:

3/5 * 25 = 25(a + 5) /25

15 = a + 5

a = 15 - 5

a = 10

HELPPPPP
If the measure of angle 1 is 110° and the measure of angle 3 is (2x+10)", what is the value of x?

Answers

x=50  

Step-by-step explanation:

angle 1 and 3 are corresponding angles that menas they equal the same

so set it up like this 2x+10=110 solve for x

move over the 10, subtract 10 from 110 you get 100 and divide by 2

you get 50.

Answer: A) 50

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

Explanation:

Angles 1 and 3 are vertical angles which are congruent.

angle 1 = angle 3

110 = 2x+10

2x+10 = 110

2x = 110-10

2x = 100

x = 100/2

x = 50

On a box-and-whisker plot, what does line segment 2 represent?

a. minimum value
b. maximum
c. first quartile
d. third quartile​

Answers

I believe it’s C. first quartile

Answer:

first quartile c number option is the correct answer

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