there are 10 boy and 10 girl in a group, 2 boys are to selected and 2 girl are to selected for the play, how many ways can they selected.

Answers

Answer 1

Answer:

400 ways

Step-by-step explanation:

Times 10 x 10 x 2 x 2  to get your answer


Related Questions

A phone line runs east along a field of 1 miles and then north along the edge of the same field for 3 miles. If the phone line cost 3500 per mile to install, how much could have been saved if the phone line had been installed diagonally across the field?

Answers

Answer:

nsnenenenwnneennenewnw

per description, this is a right triangle, a triangle with a vertical angle.
let L to be the length of diagonal line, so L^2 = 1.8^2 + 2.75^2 =>3.29
so the saving is (1.8+2.75-3.29)*3500=4410

Mrs. Koch is Improving in her Golf Game. She makes about 60% of her putts.

If she has 10 putts, what is the
Probability she makes all of them?

Answers

Answer:

most likely / 16 2/3

Step-by-step explanation:

60% = 10

60/10 = 100/x

x= 50/3

50/3 = 16 2/3

questions in the photos. 40 points if you answer correctly. ​

Answers

Answer:

V

Step-by-step explanation:

The point in the question is U

When reflected in the x-axis, it becomes W

When W is reflected in the y-axis, it becomes V

Answer:

U

Step-by-step explanation:

the answer is U because -6.5 is negative and 1 is positive

Marshall scored 80 on his first quiz and 70 on his second quiz. What was the percent of decrease in his scores?

Answers

Answer:

12.5% Decrease

Step-by-step explanation:

(10/80)*100

An old light bulb uses 60 watts of power, but a new LED bulb uses only 9 watts. What is the percent change?

Answers

Answer: 85%

Step-by-step explanation:

Percent of change formula is (old - new / old) * 100

So then you input the numbers

60 - 9

——— *100

60


51

— *100

60

= 0.85(100)

85%


Hope this helps!

Rosenfeld enjoys a delicious meal at BJs, and the bill comes back at $24.50. The service was amazing, so she wants to leave a 25% tip. How much do you pay total (bill and tip together)?

Answers

Answer:

30.62

Step-by-step explanation:

24.50 x .25 = 6.12

24.50 + 6.12 = 30.62

X+4,x+12,x-1 and x+5 are in proportion.find the value of x

Answers

Answer:

Step-by-step explanation:

As they are in proportion,

x +4  : x +12   :: x -1  : x + 5

Product of means  = Product of extremes

(x + 12)(x -1) = (x +4)(x+5)

Use FOIL method for polynomial multiplication

x*x + x*(-1) + 12*x + 12*(-1) = x*x +  x*5  + 4*x + 4*5

x² - x + 12x - 12 = x² + 5x + 4x + 20

Combine like terms

x² + 11x - 12 = x² + 9x + 20

x² + 11x - 12 - x² - 9x - 20 = 0

Combine like terms

x² - x² + 11x -9x   -12 -20 = 0

2x - 32 = 0

2x = 32

x = 32/2

x = 16

Which of the following simulations would not work for the situation described?

A. To simulate randomly selecting a day of the week, assign a one-digit number from 0 to 6 to each letter. Use a random digit table to generate one-digit numbers, ignoring any over 6.
B. To simulate randomly selecting a state in the U.S., assign a two-digit number from 01 to 50 to each state. Use a random digit table to generate two digit numbers, ignoring any over 50.
C. To simulate randomly selecting a day of the year, assign a three-digit number from 001 to 365 to each day of the year. Use a random digit table to generate two digit numbers, ignoring any over 365.
D. To simulate randomly selecting a letter of the alphabet, assign a one-digit number from 0 to 9 to each letter. Use a random digit table to generate one-digit numbers, ignoring any over 9.

Answers

Using the probability concept, it is found that the simulation that would not work for the situation described is:

D. To simulate randomly selecting a letter of the alphabet, assign a one-digit number from 0 to 9 to each letter. Use a random digit table to generate one-digit numbers, ignoring any over 9.

What is a probability?

A probability is given by the number of desired outcomes divided by the number of total outcomes.

In this problem:

For a week, there are 7 days, and in the trial there are 7 outcomes, hence item a works.The same logic apply for items b and c, as there are 50 U.S states and a year has 365 days, and in each case, respectively, there are 50 and 365 outcomes.As for item d, there are 26 letters in the alphabet, and only 9 digits, hence digits would be repeated and it would not be an accurate simulation.

More can be learned about the probability concept at https://brainly.com/question/15536019

Members of a lacrosse team raised $1793.50 to go to a tournament. They rented a bus for $757.50 and budgeted $64.75 per player for meals. Write and solve an equation which can be used to determine
x
x, the number of players the team can bring to the tournament.

Answers

Answer:

They can bring 16 students to the tournament

Step-by-step explanation:

$1793.50 - $757.50 = 1063

$1063 / $64.75 = 16

Answer:

16 students

Step-by-step explanation:

Hello :)

This question gave us a flat charge of 757.50 dollars for the bus, which means it does not depend how many members of the lacrosse team ride the bus.

However, the meals cost 64.75 per member.

So to make an equation, the bus charge would be the y-intercept (If no member went, they still paid for the bus fee) and the meals would be the slope (since it is dependent on how many members ride the bus.)

The total would add up to be 1783.50, so the equation would be:

1793.50=64.75x+757.50 where x=the number of players the team can bring to the tournament without going outside of their budget

Let's solve now.

1793.50=64.75x+757.50

-757.50              -757.50

1036=64.75x

x=16

Which of the following sets of ordered pairs represents a function? A. { (-10, -4), (17, 11), (4, 10), (4, -14) } B. { (7, 8), (-21, -8), (7, -8), (-21, 8) } C. { (14, 8), (-14, -8), (8, 14), (-8, -14) } D. { (14, 8), (14, -8), (8, 14), (8, -14) }

Answers

Answer:

C

Step-by-step explanation:

because for any domain ,you will get only one range value ,

but ,there are two range values for 4 in A;

two range values for 7, and also for 21  in B;

two range values for 14 and for 8 in D

Find m CF
44
D
5
-52

Answers

Answer:

Step-by-step explanation:

Answer:

  148°

Step-by-step explanation:

The external angle at E is half the difference of the measures of arcs FD and FC.

  (CF -44°)/2 = 52°

  CF -44° = 104° . . . . multiply by 2

  CF = 148° . . . . . . . . add 44°

The measure of arc CF is 148°.

Daniel and Saquon are each saving money.
Daniel starts with $50 in his savings account and adds $8 per week.
Saquon starts with $65 in his savings account and adds $5 each week.
QUESTION: After how many weeks will Daniel and Saquon have the same amount of money in their savings account?

Answers

It would take 5 weeks for their savings accounts to be equal.

Daniel starts with $50 and each week he adds $8. To find out the amount he has in any given week, the following formula would work:
= 50 + 8x
The x is the number of weeks and is multiplied by 8 because the amount of money he has increase by 8 every week.
After 4 weeks he would have:
= 50 + (8 * 4)
= 50 + 32
= $82
Saquon
Applying the same formula:
= 65 + 5x
After 4 weeks:
= 65 + (5 * 4)
= 65 + 20
= $85
Saquon has more money after 4 weeks.
Number of weeks it would take for both of them to have the same amount.
To find this out, equate both formulas and solve for x.
50 + 8x = 65 + 5x
8x - 5x = 65 - 50
3x = 15
x = 15/3
x = 5 weeks
At 5 weeks they will both have:
50 + 8 * 5 = $90
65 + 5 * 5 = $90

Factor: 10m^3 + 12m^2-35m -42
we are doing factoring trinomials and factor by grouping

Answers

Answer:

( 5m + 6 ) ( 2m² - 7 )

Step-by-step explanation:

please refer the image

For problems 12-17, write each number as a percent.

Answers

Answer: There's not picture????? or Queston

Step-by-step explanation:

This is due tomorrow and I don't know, what is 5/7 of 28? or how to solve itttt​

Answers

Answer:

answer is 20

Step-by-step explanation:

5/7 of 28

5/7×28= 20

hope it helps

Pittsburgh charges a 6% sales tax. Paula goes shopping and her
purchases total $139. How much will she pay in taxes?

Answers

[tex]\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{6\% of 139}}{\left( \cfrac{6}{100} \right)139}\implies 8.34[/tex]

Trina runs 4 laps around a park. each lap is 1/3 of a mile. trina wants to know how many total miles she runs

Answers

Answer:

1 1/3 miles

Step-by-step explanation:

4 laps times 1/3 mile per lap equals 1 1/3 miles

Answer:

1 1/3 mile(s)

Step-by-step explanation:

Multiply laps by miles: 4 times 1/3

= 4/3 or 1 1/3

Y=2x
Y= 3x -10

What is the solution to the system of equations?
Enter as an ordered pair
( , )

Answers

Answer:

( 10,20 )

Step-by-step explanation:

Y=2x

Y= 3x -10

What is the solution to the system of equations?

2x=3x-10      *combine like terms*

-1x= -10 x=10 *divide*

Y=2(10)  y=20  *plug in for y into other equation*

CHECK:

plug both x and y into both equations to get a true statement.

Y=2x   20=2(10)  20=20

Y= 3x -10      20= 3(10) -10  20=20  

which is greater 4/9 or 12/18​

Answers

Answer:

12/18

Step-by-step explanation:

4/9 = 0.4444....

12/18 = 2/3 = 0.66666....

12/18 is greater than 4/9

Brainliest to whoever can answer this question the best + 50 pts.
Solve the system of linear equations BY ELIMINATION. Show a step-by-step process.
3x - 2y = -2
5x - 3y = -4

Answers

3x-2y=-2--(1)5x-3y=-4--(2)

(1)×5 and (2)×3

[tex]\\ \tt\hookrightarrow 15x-10y=-10--(3)[/tex]

[tex]\\ \tt\hookrightarrow 15x-9y=-12--(4)[/tex]

Subtracting

[tex]\\ \tt\hookrightarrow -y=+2[/tex]

[tex]\\ \tt\hookrightarrow y=-2[/tex]

Put in eq(1)

[tex]\\ \tt\hookrightarrow 3x+4=-2[/tex]

[tex]\\ \tt\hookrightarrow x=-2[/tex]

Answer:

x = -2 and y = -2

Explanation:

Given equations:

3x - 2y = -2

5x - 3y = -4

---------------------

Make the value before y equal:

( 3x - 2y = -2 ) * 3

9x - 6y = -6 .........equation 1

( 5x - 3y = -4 ) * 2

10x - 6y = -8 ...........equation 2

solve them by elimination:

10x - 6y = -8

-9x + 6y = +6

----------------------

x = -2

If x is -2

Then y:

10x - 6y = -8 .................from equation 2

-6y = -8-10x

y = [-8 - 10(-2)]/-6

y = -2

How much paneling needs to be removed?

Answers

I'll draw it for you cause im nice. (Blue bit is the part we dont have paneling on).

So the the total surface area of panelling needed to remove will be (8 x 6 1/2) x 2 = 104. And also 3 x 8 x 2 = 48. So total surface area = 152. So its 152ft^2

=A

⭐ Answered by Foxzy0⭐

⭐ Brainliest would be appreciated, I'm trying to reach genius!

⭐ If you have questions, leave a comment, I'm happy to help! ⭐

first responder gets

Answers

Step-by-step explanation:

Storage facility => 12x²y³ • 4x⁴y²

Storage facility => 48x⁶y⁵

[tex]\implies \: \frac{12 {x}^{6} {y}^{ - 4} z {}^{2} }{3x {}^{2} {y}^{ - 6} z {}^{3} } \\ \implies \: 4( {x}^{6 - 2} ) \times ({y}^{ -4 + 6} ) \times( {z}^{2 - 3} ) \\ \implies \: 4 {x}^{4} \times {y}^{2} \times {z}^{-1} \\ \implies \: \frac{4 {x}^{4} {y}^{2}}{z} [/tex]

Pls answer this I need it

Answers

Answer:

f = 42 , q = 127

Step-by-step explanation:

3f + 1 and 127 are alternate angles and are congruent , so

3f + 1 = 127 ( subtract 1 from both sides )

3f = 126 ( divide both sides by 3 )

f = 42

q and 127 are corresponding angles and are congruent , so

q = 127

q = 127°=========================3f + 1 = 127Subtract both sides minus 1 3f + 1 - 1 = 127 - 13f = 126 Divide both sides by 3 3f ÷ 3 = 126 ÷ 3f = 42

BTW I like ur name hahahah

Have great day.

approximate the square root of 110 ​

Answers

Answer:

10.4880885 or 10.5

Step-by-step explanation:

The square root of 110 is a decimal ... 10.4880885

If we round up it will be 10.5

Answer:

10.488 to nearest thousandths

Step-by-step explanation:

If you mean using a calculator, sqrt(110) is approximately 10.488.

If you mean by hand (unlikely), there are methods such as Newton-Raphson method that converge quite quickly (after around 10 iterations it's basically no different than your calculator)

HELP FAST PLS YOU GUYS

Answers

Answer:

Function increase (-4,inf)

Step-by-step explanation:

cause it increases as the it rises from left to right

I’m so sorry i Don’t know the answer I would help if I could

At the local bakery Ariel bought 2 oatmeal cookies for $1.50. Mei bought 1/2 dozen oatmeal cookies for $4.50. Becky bought 8 oatmeal cookies for $6.00 what does the point (1,0.75) represent in...

Answers

Answer:

Its proportional because when you divide each oatmeal bought and the amount you will end up with .75

Which expression Is equivalent to x^2+10x+24

Answers

Answer:

(x+4)(x+6)

Step-by-step explanation:

First we factorise:

x²+4x+6x+24

x(x+4)+6(x+4)

(x+4)(x+6)

So the last one is equivalent

Answer:

(x+4)(x+6)

Step-by-step explanation:

1) Each student has 2 shoes. How many shoes are there for 8 students?

Answers

Answer:

16 shoes

Step-by-step explanation: If every student has 2 shoes and you want to know how many shoes for 8 students. Then you do 8 times 2 which is 16 shoes for 8 students. Hope this helps

HELP 20 POINTS!!!!!!Using the equation y = 3x – 5, what would the output be for an input of 4?
3
7
-3
-5

Answers

Answer:

7

Step-by-step explanation:

3(4)=12

12-5=7

Which is the one of the correct formula of T.S.A of cylinder with himsphere *

πr(3r+h)
3πr^3+2h
πr(3r+2h)

Answers

Answer:

[tex]\pi \: r(3r + 2h) \: is \: the \: answer[/tex]

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