A committee of 4 boys is selected from 10 boys?
a. How many different committees can be selected?
b. How many of these contain on particular boy x?
c. How many of these contain two particular boys x and y?
d. How many do not contain x?

Answers

Answer 1

Answer:

I don't know about this thing


Related Questions

Thajus earned $19 babysitting on Saturday and $8 babysitting on Sunday. By how much did his earnings on
Saturday exceed his earnings on Sunday?
O $1
O $11
O $27
O $30

Answers

Answer:

11

Step-by-step explanation:

exceed mean how much and the question is asking how much did he get more so yust 19 -8=11

11 because you have 19 and 8 for babysitting

uhhhhh help lol find angle

Answers

Answer:

129°

Step-by-step explanation:

51+51 =102

360-102=258

258÷2=129

:)

Hello I need help in my math

12: {x,y,z} ? {a,b,c} is it equal or not?

13: {0} ? { } equal or not?

Please help no spam no links I need help mark brainliest!!

Answers

12: Equal, because the cardinal number of {x,y,z} are same as {a,b,c}, that is, 3.

13: Not equal, because in set {0}, there is one element , while in set { } , there are no elements at all .

Hope it helps you. Have a nice day!

(by Benjemin)

It took Emma 3/4 hour to rake the leaves. It took her 1/5 hour more to
weed the garden than it took to rake the leaves. It took her 0.2 hour
more to mow the lawn than it took to weed the garden. Discuss a
strategy you can use to find the answer. Then determine how long it
took her to do all three chores.

Answers

9514 1404 393

Answer:

  total: 2.85 hours = 2 17/20 hours

Step-by-step explanation:

Strategy: convert all fractions to decimals, determine weeding and mowing times, and add the three times to find the total.

  3/4 = 0.75

  1/5 = 0.2

Solution:

raking time: 0.75 hours

weeding time: 0.75 +0.2 = 0.95 hours

mowing time: 0.95 +0.2 = 1.15 hours

__

Total time: 0.75 +0.95 +1.15 = 2.85 hours = 2 17/20 hours

_____

Additional comment

You may recognize that 0.95 is the middle of three equally-spaced values. Then the total will be 3×0.95 = 2.85 hours.

could someone pleaseeeeee help

Answers

whyyyyyyyyyyyyyyyyyy

whyyyyyyy

Translate into a variable expression. y decreased by 30

Answers

Answer:

y-30

Step-by-step explanation:

If y is decreased by 30, then you are saying y-30.

5.6 write each decimal as a fraction or a mixed number

Answers

Answer:

28/5

plsss mark me brainliestt

Step-by-step explanation:

5.6=56/10

28/5

For what values of k will the equation 4x² + 8x + k = 0 have two real solutions?

Answers

Answer:

k < 4

Step-by-step explanation:

Given a quadratic equation in standard form

ax² + bx + c = 0 ( a ≠ 0 )

Then the discriminant Δ = b² - 4ac informs us about the nature of the solutions.

• If b² - 4ac > 0 then 2 real and distinct solutions

• If b² - 4ac = 0 then 1 real and repeated solution

• If b² - 4ac < 0 then no real solutions

4x² + 8x + k = 0 ← is in standard form

with a = 4, b = 8 , c = k , then

b² - 4ac = 8² - (4 × 4 × k) = 64 - 16k

For two real solutions

64 - 16k > 0 ( subtract 64 from both sides )

- 16k > - 64

Divide both sides by - 16, reversing the symbol as a result of dividing by a negative quantity.

k < 4

Then any value less than 4 will ensure the equation has two real solutions

5 1/6•(-2/5)=
Answer as a fraction

Answers

-31/15 is the correct answer

Which of the following correctly uses exponents to write "6 factors of 2"?
26
6.2
12
62

Answers

Answer:

A. 26

Step-by-step explanation:

The base number (the first number) is what will be multiplied and the exponent is how many times you're multiplying the number, so for this it would be

2 x 2 x 2 x 2 x 2 x 2


[tex] {x}^{4} - 16 = [/tex]
What is the answer and steps ​

Answers

Answer:

[tex](x - 2) \times (x + 2) \times ( {x}^{2} + 4)[/tex]

Step-by-step explanation:

[tex] {x}^{4} - 16[/tex]

➡️ [tex] {x}^{2 \times 2} - 16[/tex]

➡️ [tex] {x}^{2 \times 2} - {4}^{2} [/tex]

➡️ [tex]( {x}^{2} {)}^{2} - {4}^{2} [/tex]

➡️ [tex]( {x}^{2} - 4) \times ( {x}^{2} + 4)[/tex]

➡️ [tex](x - 2) \times (x + 2) \times ( {x}^{2} + 4)[/tex]

1. In some music, a whole note equals one measure, a quarter note
equals , of one measure, and an eighth note equals of one
measure. If one measure has two quarter notes and an eighth note,
what notes can make up the rest of the measure? Write and solve an
equation.

Answers

Answer:

3 eighths are needes to make up the rest of the measure.

Step-by-step explanation:

1/4 + 1/4 + 1/ 8 + x = 1

2/4 + 1/8+x=1

4/8 + 1/8+x=1

5/8 + x=1

x=1 - 5/8

x=3/8

We need three eights.(Because 3/8=1/8+1/8+1/8 and 1/8 represents an eights)

How do you determine if the numbers are positive or negative?

Answers

Answer:

Positive integers have values greater than zero.

Negative integers have values less than zero.

Zero is neither positive nor negative.

Step-by-step explanation:

Answer: if they have got - before them or if the say negative

Step-by-step explanation:

You’re help Is greatly appreciated!! I will mark BRAINLIEST as well

Answers

Answer:

1. -4/7

2. 4/3

3. x^2 + 16x + 63

4. x^2 + 19x + 90

Step-by-step explanation:

1. (1, 8) and (8, 4)

slope = m = (8 - 4)/(1 - 8) = -4/7

2. (2, 4) and (5, 8)

slope = m = (8 - 4)/(5 - 2) = 4/3

3. (x + 9)(x + 7) =

= x^2 + 7x + 9x + 63

= x^2 + 16x + 63

4. (x + 10)(x + 9) =

= x^2 + 9x + 10x + 90

= x^2 + 19x + 90

y link
MIT
MULTIPLE CHOICE QUESTION
Is the following statement, True or False?
lf this same substance were cooling, the
freezing point, or moment when the
substance begins to freeze would happen
at 25 degrees Celsius.

Answers

Answer:

False False False because freezing point is 100 degree celsius

A: What is the perimeter of HOUSE?

perimeter of HOUSE =


(round to the nearest hundredth - two decimal places)


B: What is the length of OH?

(round to the nearest thousandth - three decimal places)


C: What is the midpoint of OU?


D: Which is longer, OH or EH?


E: What is the perimeter of the triangle HOU?


perimeter of triangle HOU


(round to the nearest hundredth - two decimal points)

Answers

First calculate distances or lengths(Refer to attachment)

A:-

[tex]\\ \sf\longmapsto Perimeter=Sum\:of\:sides[/tex]

[tex]\\ \sf\longmapsto 5.3+9+11+9+9.7[/tex]

[tex]\\ \sf\longmapsto 15+29[/tex]

[tex]\\ \sf\longmapsto 44[/tex]

B:-

Refer to the attchment

C:-

[tex]\\ \sf\longmapsto \left(\dfrac{1+4}{2},\dfrac{1+6}{2}\right)[/tex]

[tex]\\ \sf\longmapsto \left(\dfrac{5}{2},\dfrac{7}{2}\right)[/tex]

D:-

EH>OH

E:-

[tex]\\ \sf\longmapsto Perimeter[/tex]

[tex]\\ \sf\longmapsto 9.7+5.3+9[/tex]

[tex]\\ \sf\longmapsto 24[/tex]

which expressionis equivalentto 83,100 in expand formusing power of 10?​

Answers

Answer:

8.3100 x [tex]10^{4}[/tex]

Explanation:

83100 in this form would be 8.3100 x [tex]10^{4}[/tex] because you can see 4 digits after the decimal point which would be raised to the 4th power of 10.

What is the LCM for 18,24

Answers

Answer:

I think the LCM is 72 for 18 and 24

Answer:

hope it helps you........

This cube and cuboid have the same volume. The length, width and height of the cuboid are all different whole numbers. Suggest what they might be. 4 cm 4 cm width 4 cm height length ​

Answers

Answer:

4hdunzkzmfindudjdkzmd

Solve 4.5 divided by 0.9

Answers

Answer:

4.5 / 9 = 1/2

Answer is 5

9
Simplify ——
10
45 9
—— ÷ ——
10 10

9
Simplify —
2


9 9
— ÷ ——
2 10

9 9
Divide — by —— = 5
2 10

Three times the sum of d and r square.

Answers

Answer:

3*(d + r^2)

Step-by-step explanation:

Sometimes you read what is needed from front to back and other times it goes from back to front. This is one of those things that goes from back to front.

d and r^2 = d + r^2  In this case and means plus.

Now you deal with the three.

3(d + r^2) which creates the distributive property.

Answer:

3*(d + r^2) is correct answer

Step-by-step explanation:

Reading - Word - Level 1
Vocabulary
Page 21
*
Safety is the number one priority at our trampoline parks.
That's why every session is supervised by our trained staff.
However, we cannot do it alone. We ask that parents and
guardians make sure their children follow our rules.
Informative
Persuasive

Answers

Answer:

crisp, clean, formal, readable

Step-by-step explanation:

Informative - that’s why every session is supervised by our trained staff

Persuasive - safety is number one

Pls give me a brainliest thx

The perimeter of a triangle is 143cm, The sides are x-6, x-6, and 25. Find the length of each side of the triangle

Answers

Answer:

12

Step-by-step explanation:

SOLUTION:  

In a right triangle, the sum of the squares of the

lengths of the legs is equal to the square of the length

of the hypotenuse. The length of the hypotenuse is 13

and the lengths of the legs are 5 and x.  

Nora has a flower arrangement with 7 pink flowers, 9 purple
flowers, and 5 white flowers. Which sentence is not true?

The ratio of total flowers to pink flowers is 21: 7

The ratio of white
flowers to purple flowers is 5:9.

The ratio of purple flowers to total flowers is 16 to 21.

Answers

Answer:

The ratio of purple flowers to total flowers is 16 to 21 is NOT TRUE because your total is already 21 so it would make no sense for 16 to be in the ratio

Assume that when adults with smartphones are randomly selected , 44% use them in meetings or classes. If 8 adult smartphone users are randomly selected , find the probability that exactly 3 of them use their smartphone in meetings or classes

Answers

Answer:

you just answered your own question

Please help

Solve the equation.
Give your simplified answer as an improper fraction.
7(x + 1) = 1 – 2(5 – x)
? ]
W

Answers

Answer:

-16/5

Step-by-step explanation:

7(x+1)=1-2(5-x)

7x+7=1-10+2x

7x-2x=1-10-7

5x = -16

x = -16/5

Answer: [tex]\huge {x = -\frac{16}{5} }[/tex]

Step-by-step explanation:

Given equation

7 (x + 1) = 1 - 2 (5 - x)

Expand parentheses and apply the distributive property

7x + 7 = 1 - 10 + 2x

Combine like terms

7x + 7 = -9 + 2x

Subtract 2x on both sides

7x + 7 - 2x = -9 + 2x - 2x

5x + 7 = -9

Subtract 7 on both sides

5x + 7 - 7 = -9 - 7

5x = -16

Divide 5 on both sides

5x / 5 = -16 / 5

[tex]\boxed{x=-\frac{16}{5} }[/tex]

Hope this helps!! :)

Please let me know if you have any questions

Write a function rulle

Answers

Hey, there! Based on the table from the picture, every hour increased is $6 increased for the cost of the rental.

First hour: $10

Second hour: $16

Third hour: $22

Fourth hour: $28

So, final answer is:

+1 hour=+$6.

Anyways, I hope this helps! Enjoy your day! Take care!

Write the complete answer on each line


1. If a is a subset to B and B is the subset of A, what Else is true about sets A and B


2. List all of the the subsets of {a,b,c}


3. How many subsets are there of {a,b,c,d,e,f}

Answers

Answer:

Step-by-step explanation:

1. If A is a subset of B and B is a subset of A then A and B must be equal.

2. The subsets of {a,b,c} are

{ } (emptyset}, {a}, {b}, {c}, {a,b}, {a,c}, {b,c}, {a,b,c}

3} Since {a,b,c,d,e,f} has 6 elements then there are [tex]2^6[/tex] subsets.

Can someone pls help me pls ​

Answers

Answer:

your fractions will go in order of 1/4, 2/5, 5/8, 4/6

Step-by-step explanation:

a. 2/5 < 1/2 and 4/6 > 1/2 so 2/5 < 4/6

b. 5/8 > 1/2 and 1/4 < 1/2 so 5/8 > 1/4

c. 4/6 > 1/2 and 4/6 < 2/2 and 5/8 > 1/2 and 5/8 < 2/2 and 5/8  ?? cannot see this

Perimeter cm, area square cm

Answers

Step-by-step explanation:

[tex]perimeter = 2(l + b) = \\ 2(15 + 8) = 2(23) = 46cm \\ area = lb \\ 15 \times 8 = 120 {cm}^{2} \\ thank \: you[/tex]

15 multiple 8= 120120 multiple 128 = 15,360 cm

Your ans is 15,360cm Hope it helps you my friendGood morning

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