How many subsets does set a have if the set a has 3 elements? 3 6 8?

Answers

Answer 1
Consider a set {a,b,c} 
The 8 subsets are { }, {a}, {b}, {c}, {a,b}, {a,c}, {b,c} and {a,b,c}. 
If a set has n elements, the number of subsets is 2^n.
Answer 2

This should help

Let's say Set A = {1,2,3}, Set A can have subsets of:

{1}, {2}, {3}, {1,2}, {1,3}, {2,3}

And so there is 6 subsets.


Related Questions

Perform the indicated operation. 13/16 – 3/8
7/16
5/8
1 3/16

Answers

13/16 - 3/8

 convert 3/8 to 16ths

3/8 = 6/16

13/16 - 6/16 =

13/6 =7

7/16 is the answer

Answer:

The correct option is 1.

Step-by-step explanation:

The given expression is

[tex]\frac{13}{16}-\frac{3}{8}[/tex]

We need to perform the indicated operation.

Make denominator common.

[tex]\frac{13}{16}-\frac{3\times 2}{8\times 2}[/tex]

[tex]\frac{13}{16}-\frac{6}{16}[/tex]

It can be written as

[tex]\frac{13-6}{16}[/tex]

[tex]\frac{7}{16}[/tex]

The value of given expression is [tex]\frac{7}{16}[/tex].

Therefore the correct option is 1.

12x > 9(2x-3) -15
solve the inequality for x. show each step of the solution.

Answers

12x>18x-27-15
-6x>-42
x<7
12x > 9(2x - 3) - 15

12x > 18x - 27 -15  (distribute)

12x > 18x - 42 (simplify)

12x - 18x > 18x - 18x - 42 (subtract -18x from each side)

-6x/-6 > -42/-6 (divide, isolate the x)

x < 8 (answer, when you divide a negative, flip the sign)

hope this helps

Need help please !
Thanks !

Answers

Multiply 30 by the decimal form of 1/20 to get the answer.
1/20 = 0.05
30*0.05= 1.5 years

Final answer: 1 1/2 years

Jim and Sarah are running for class president. Cayla and Daniel are running for Vice President. What combinations of president and Vice President could there be?

Answers

Jim and Sarah are running for a president and Cayla and Daniel are running for a vice president.Combinations are:Jim (P) - Cayla (VP)Jim (P) - Daniel (VP)Sarah (P) - Cayla (VP)Sarah (P) - Daniel (VP)In total: 4 combinations.


please help me with this math question i'm not good at math and i don't understand this well

Answers

9/2x+4 = 6/x+4

9x+36 = 12x+24

3x=12

x = 4

4+4 = 8

ED = 8

Hello,

Using Thalès,

AE/ED=AB/DC

(2x+4)/(x+4)=9/6
(2x+4)/(x+4)=3/2
(2x+4)*2=(x+4)*3
4x+8=3x+12
x=4
==>x+4=ED=4+4=8

which equation could used to solve : 3 less than 5 time a number is 22?

Answers

3-5x = 22 

hope this helps . give brainliest 
thanks 
The equation would be 5x-3=22. The 22 is on the other side because that is what equals the other side of the equation. It is saying 3 less than 5 TIMES so it is 5x-3.

a museum has a wax sculpture of a historical village. The scale is 1.5 : 8. If the height of a hut in the sculpture is 5 feet how tall is the original hut to the nearest whole foot?

Answers

The scale of the sculpture to the original village is 1.5 : 8 We can calculate 8 / 1.5 which equals 5.333 The original structures in the village are 5.333 times the size of the items in the sculpture. If the hut in the sculpture has a height of 5 feet, then we need to multiply this by 5.333. original hut height = (5 feet) (5.333) original hut height = 27 feet The original hut has a height of 27 feet.

Answer:



Step-by-step explanation:

Math Plzz HELP ASAP!!!!!!
(−213+515)+113

Answers

the answer is gonna be 415

The solution of (−213+515)+113 is 415

Add -213 and 515:

-213 + 515

= 302

Add 113 to the result:

302 + 113

= 415

So, the final answer is 415.

Question:

Solve: (−213+515)+113

Under which condition does a country with a small GDP have a large per capita income?

Answers

if the country has a small population

Answer:

Small population

Step-by-step explanation:

GDP is defined as the Gross domestic product of a country. It is the amount of money made in the country at a specific period of time. It measures the economic state and progress of the country.

Per capital income is the average income citizens earn in a country.

However a country with a small GDP will have a large per capital income only if the population size of the country is small. This small population size will make it possible for less competition and more money going round for the citizens.

How do you write a piecewise function

Answers

you cannot write a piece wise function
Final answer:

To write a piecewise function, you need to define different equations for different intervals of the independent variable.

Explanation:

To write a piecewise function, you need to define different equations for different intervals of the independent variable. Each equation represents a different part or piece of the function. Here's an example:

f(x) =

2x + 1, if x ≤ 0x^2, if 0 < x ≤ 54 - x, if x > 5

In this function, the equation 2x + 1 is used for values of x that are less than or equal to 0, the equation x^2 is used for values of x between 0 and 5 (inclusive), and the equation 4 - x is used for values of x greater than 5.

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Marcel is designing a circular necklace that will consist of 4 sections, each with a different color of plastic. Determine how he needs to cut the plastic by finding the measures of the angles.

Answers

Answer:

measure of angle 1 is 83 and measure of angle 2 is 97

Step-by-step explanation:

edg

Final answer:

Marcel needs to cut the plastic to create four equal angles of 90 degrees each for his circular necklace since a circle has a total of 360 degrees.

Explanation:

The student is being asked to calculate the measures of the angles in a circular necklace that is divided into four equal sections. Since a circle has 360 degrees, and the necklace is divided into four sections, each section must be an equal fraction of the total degrees in a circle. To find the measure of each angle, we divide the total degrees in a circle (360) by the number of sections (4).

Step-by-step calculation:

Identify the total degrees in a circle: 360 degrees. Divide this number by the number of sections: 360 ÷ 4. Calculate the result: each section has an angle of 90 degrees.

Therefore, Marcel needs to cut each angle at 90 degrees to create four sections of the circular necklace.

2.05 MC) Triangles ABC and DEF. Coordinates for A are 0, 2, for B 2, 4, and for C 1, negative 2. Given: ΔABC ≅ ΔEFD What is the length of Segment line FE rounded to the nearest tenth? (4 points) 2.8 3.4 4.1 6.1

Answers

The answers is 2.8 and or 2.83 which ever your answer chose is 

Answer:

2.8

Step-by-step explanation:

From the congruence statement, we see that AB corresponds with EF; this means they will be congruent.

To find the measure of FE, we will find the distance between points A and B using the distance formula:

[tex]d=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}[/tex]

Using our coordinates for A and B, we have

[tex]A(0,2)\text{and }B(2, 4)\\\\d=\sqrt{(4-2)^2+(2-0)^2}=\sqrt{2^2+2^2}\\\\=\sqrt{4+4}=\sqrt{8}=2.828427\approx 2.8[/tex]

mrs perry shares out 30 biscuits between gemma and zak in the ration 1:4 how many biscuits does each child get

Answers

Gemma gets 6 biscuits, and Zak gets 24 biscuits when Mrs. Perry shares out 30 biscuits between them in the ratio 1:4.

To solve this problem, we need to divide the 30 biscuits according to the ratio 1:4 between Gemma and Zak.

Calculate the total parts in the ratio.

Total parts = 1 (from Gemma) + 4 (from Zak) = 5 parts

Find out how many parts each child gets.

For Gemma:

Gemma's share = (1 part ÷ 5 parts) × 30 biscuits

= (1/5) × 30

= 6 biscuits

For Zak:

Zak's share = (4 parts ÷ 5 parts) × 30 biscuits

= (4/5) × 30

= 24 biscuits

Verify the result.

Gemma gets 6 biscuits, and Zak gets 24 biscuits.

6 + 24 = 30 biscuits (which is the total), so the division is correct.

Thus, Gemma gets 6 biscuits, and Zak gets 24 biscuits when Mrs. Perry shares out 30 biscuits between them in the ratio 1:4.

A bag contains eight green marbles and four blue marbles. what is the probability of drawing a green marble on the second draw?

Answers

2/3 probability of drawing a green marble on the second draw. If the marbles are replaced after each draw, the probability will always be 2/3 of a green marble being drawn. But for this problem, going to assume that the marbles are not replaced after each draw. So we have 2 possible scenarios. 1. The first marble drawn is green This even happens with probability of 2/3 and leaves you with 7 green marbles and 4 blue marbles. So the probability of picking a green marble again is 7/11. 2. The first marble drawn is blue This event happens with probability of 1/3 and leaves you with 8 green marbles and 3 blue marbles. So the probability of picking a green marble this time is 8/11 The total probability of picking a green marble on the 2nd pick is the sum of the product of each probability. So 2/3 * 7/11 + 1/3 * 8/11 = 14/33 + 8/33 = 22/33 = 2/3

Complete the equations to prove that vertical angles always have equal measure. In terms of b and a numberin degrees, \purple c=c=start color purple, c, end color purple, equals In terms of b and a numberin degrees, \pink a=a=start color pink, a, end color pink, equals Combining these equations to get a in terms of c, \pink a=a=start color pink, a, end color pink, equals

Answers

180-b

180-b

c

Step-by-step explanation:

How can you use a number line to add and subtract like fractions?

Answers

Find the smallest multiple (LCM) of both numbers.
Rewrite the fractions as equivalent fractions with the LCM as the denominator.

MATH PLEASE HELP!!! loolissy

Answers

The correct answer is:  [D]:  "Graph D" .
_______________________________________________

Polynomial Factorization Help!
Can 2x^2-3x-5 = 0 be factorized? I solved it with the Quadratic Formula but I can't find two numbers that multiply to -5 but add to -3

Answers

Since there is a 2 at the start, we actually multiply -5 by 2, meaning that it needs to multiply to (-5*2)=-10 and add up to -3. Since -5 and 2 fit the bill, we get (x+5)(x-2)=0 (as -5+5 and 2-2=0)

molly has 1 3/8 cups of strawberries she needs 3/8 cups of strawberries to make one batch of muffins how many batches did molly make?

Answers

she can make 3 batches

Evaluate. (14)−2−(50⋅2)⋅1−1

Answers

From the order of operations, we do parens, then multiply/divide, then add/subtract,  rewriting each step to keep everything clear:

(14) - 2 - (50 ⋅ 2) ⋅ 1 - 1
14 - 2 - 100 ⋅ 1 - 1 [parents are finished]
14 - 2 - 100 - 1 [multiplication is finished]
-- we do the subtraction left to right, but here are the steps:
12 - 100 - 1
-88 - 1
-89
(14) - 2 - (50 ⋅ 2) ⋅ 1 - 1
14 - 2 - 100 ⋅ 1 - 1 
14 - 2 - 100 - 1
12 - 100 - 1
-88 - 1
-89

If EF =9x+17 , FG = 35 , and EG=196 , find the value of x

Answers

EF + FG = EG
9x +17 + 35 = 196 
9x + 52 = 196
9x = 144
x = 16

answer
x = 16

hope it helps

The required simplified value fo x is 16 in the expression of the line segment.

Given that,
If EF =9x+17 , FG = 35 , and EG=196 , find the value of x is to be determined.

What is arithmetic?

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here
EG = 196
EF + FG = 196
9x + 17 + 35 = 196
9x + 52 = 196
9x = 196 - 52
9x = 144
x = 144/ 9
x = 16

Thus, the required simplified value fo x is 16 in the expression of the line segment.

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the sum of two numbers is 200 and the two numbers are in a ratio of 4:6 find the larger number

Answers

Let x be the 1st number an y, the 2nd:

a) x+y = 200
b) x/y = 4/6

Remember that if we have a/b = c/d, we can write (a+b)/b = (c+d)/d
So if x/y = 4/6, then (x+y)/y = (4+6)/6
But x+y = 200, then:
200/y = 10/6 
Cross multiplication→ 10y = 1200 and y = 120 and x= 200-120 and x = 80.
Proof:
x/y = 80/120 = 8/12 = 4/6 


The equation of line q is 5y - 4x = 10. Write the standard form of the equation of the line that fits the following description: parallel to q and passes through the point at (-15, 8)

Answers

The line parallel to 5y - 4x=10, that passes through (-15, 8) is
y=4/5x +20

Answer:

y =  [tex](\frac{4}{5})[/tex]x + 20

Step-by-step explanation:

The equation of line q is 5y - 4x = 10

                                       5y = 4x + 10

                                       y = [tex]\frac{4}{5}x+2[/tex]

If a line is parallel to this line the slope of the line will be the same as the given line = [tex](\frac{4}{5})[/tex]

Let the parallel line is y = mx + c

where m = slope

and    c = y-intercept

equation will be y = [tex]\frac{4}{5}x+c[/tex]

This line passes through (-15, 8)

so   8 = (-15)  [tex](\frac{4}{5})[/tex] + c

8 = -12 + c

c = 12 + 8

c = 20

Now the equation of the parallel line will be y =  [tex](\frac{4}{5})[/tex]x + 20

A line blank has endpoints

Answers

While a line *segment* (note the emphasis on "segment") has two endpoints, a line itself does not have any endpoints. 

A geometric line extends forever in both directions infinitely. So the answer here is "never"

In other words, the full phrase would be "a line never has endpoints".

Answer: A line never has endpoints .

Step-by-step explanation:

In geometry , a line is a straight one-dimensional undefined figure which  extends infinitely in both directions.

Thus , a line contains no endpoints because it is extending infinitely in both the directions.

If a line has one end point then we call it a ray and if it has both endpoints then we call it line-segment.

Therefore , the complete sentence will be : A line never has endpoints

Andy used 1/6 of a can of paint to cover 1/2 of a wall. How much of the can of paint did Andy use to paint the whole wall? Express your answer in simplest form. help ill mark brainliest

Answers

Your answer is 2/6 or 1/3 of the can of paint

If p(x) = x2 – 1 and ,q(x)=5(x-1) which expression is equivalent to (p – q)(x)?

Answers

(p-q)(x)=p(x)-q(x)=x²-1-5(x-1)=x²-5-5x+5=x²-5x

Answer:

C ) ( x² - 1 ) - 5 ( x - 1 )

Step-by-step explanation:


The directions say...Use dimensional analysis to convert the measurements.

The question is...Convert 950 US dollars to British pound sterling. Use 1 US dollar = 0.62 British pound sterling.

Answers

725.18 would be the answer
The answer would be 725.18

You ride your bike to school. As you approach an intersection, you decrease your speed by 1.5 miles per hour per second. Select an inequality that represents the time tt (in seconds) until your speed decreases by more than 10.5 miles per hour. Then solve the inequality.

Answers

The acceleration is equal to the change in velocity per time. Now, the acceleration is said to be 1.5 miles/h·s. We are asked to find the corresponding time when the change in velocity is 10.5 miles/h such that the acceleration does not change.

a = Δv/t
1.5 = 10.5/t
t = 7 seconds

Answer:

The time elapsed is greater than 7 seconds

Step-by-step explanation:

From definition

acceleration = change in speed/time elapsed

or:

a = Δv/t

Rearranging:

a*t = Δv

If your speed decreases by more than 10.5 miles per hour, then:

Δv > 10.5

Replacing with the previous equation and solving for t:

a*t > 10.5

t > 10.5/1.5

t > 7 s

branliest offered i need help please
evalute the numerical expression
{[(3x4)+18]+[(6x7)-27]}divided by 5

Answers

(12+18) + (42-27)

30+15=45

45/5=9
9 is your answer!

Always do whats inside the parentheses

Hello Dezaria. (I love your name) Let's figure this out!

{[(3·4)+18]+[(6·7)-27]} (Multiplication in parenthesis first)
{[ 12 + 18]+[ 42 - 27]} (Parenthesis)
{ 30 + 15 } (Add)
45 / 5
9 (Answer)

Thus, 9 is your answer. 
Feel free to contact me for anymore help. I'll do what I can. Have a nice evening. 

A trout swims 1 2/3 miles in 25 minutes. How far can it's swim in one hour

Answers

The answer is 4 miles in a hour.

60minutes per hour

25/60 = 5/12

1 2/3 / 5/12 =

5/3 / 5/12 =

5/3 * 12/5 = 60/15 = 4 miles

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