Let A = {2, 3, 4, 5, 6, 7} B = {2, 4, 7, 8) C = {2, 4}. Fill in the blanks by ⊂ or ⊄ to make the
resulting statements true.
(a) B __ A (b)C __ A (c) B __ C (d) ∅ __ B (e) C __C

Answers

Answer 1

Answer:

Answer

Step-by-step explanation:

(a) B ⊄ A (b) C ⊂ A (c) B ⊄ C (d) ∅ ⊂ B (empty set is an element of any set)

(e) C ⊂ C (reflexitivity).


Related Questions

During a pumpkin launching contest, two pumpkins are launched at the same time. the path of pumpkin a is modeled by the equation y = –0.01x2 0.32x 4. the path of pumpkin b is modeled by the equation y = –0.01x2 0.18x 5. if x represents the distance the pumpkin traveled in feet and y represents height of the pumpkin in feet, what does the intersection point of the equations represent?

Answers

The distance at which pumpkins are the same height.

What do you mean by X and Y coordinates?

The X and Y coordinates are an address that help locate a point in two dimensions of space. The coordinates (x, y) are used to represent any point in the coordinate plane. The x value indicates the point's position in regard to the x-axis, and the y value indicates its position in relation to the y-axis.

Solution

Both equations' graphs would be at an intersection, which would indicate that their x and y coordinates are identical. The same y coordinate would indicate being at the same height at that precise distance since y refers to the pumpkin's height.

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Answer:

D). the horizontal distance of the pumpkins from the launch site when their heights are the same

Step-by-step explanation:

I took the flipping test nickle

About 70% of Australia's population are of British descent. If Australia's population is 25
million how many people are of British descent?

Answers

Answer:

17,500,000 people

Step-by-step explanation:

70% can be rewritten as 0.7 time 25 million

0.7*25,000,000 = 17,500,000

N=
Help me please thanks :))

Answers

The measure of n of the sector with the given area is: 100°

What is the Area of a Sector?

The area of a sector of a circle = ∅/360 × πr².

We are given that:

Area of the sector = 40π

Radius (r) = 12 units

∅ = n°

Plug in the values and solve for n

40π = n/360 × π(12²)

40π = n/360 × π144

Divide both sides by 144π

40π/144π = n/360 × 144π/144π

40/144 = n/360

40(360) = n(144)

14,400/144 = n

n = 100°

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can someone please help mee

Answers

Answer:

I think that this answer is 22

The probability of event X is 30%. The probability of event Y is 40%. If events X and Y are mutually exclusive, what is the probability of event X or Y

Answers

The probability of event X or Y is P = 0.7, or, in percentage form, the probability is 70%.

How the get the probability of event X or Y?

First, two events are mutually exclusive if these events can't happen at the same time.

This means that if happens X, with a 30% of probability, then Y can't happen.

If happens Y, with a 40% of probability, then X can't happen.

Then the probability of X or Y (the probability that one of these two events happens, not both) is just the addition of the two individual probabilities.

Then we have:

P(X or Y) = 0.3 + 0.4 = 0.7

Or, in percent form, we get:

P(X or Y) = 70%

The probability of event X or Y is just 70%.

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1 x/3 - 3/4 = 5/12
solve for x!

Answers

The value of x is 7/2

How to solve for x?

The equation is given as:

x/3 - 3/4 = 5/12

Multiply through by 12

4x - 9 = 5

Add 9 to both sides

4x = 14

Divide by 4

x = 7/2

Hence, the value of x is 7/2

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Someone help me solve these two problems having trouble solving them

Answers

The first equation is 5x² - 20x + 27 and the second equation will be y = 3x² + 6x + 15.

How to compute the equation?

It should be noted that an equation simply means a formula that's used to express the equality of two expressions that are given in Mathematics.

It should be noted that before solving the equations, it's important to expand the functions that are squared and then solve accordingly. This will be illustrated below.

The first equation that's given is:

y = 5(x - 2)² + 7

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

= 5(x² - 2x - 2x + 4) + 7

= 5(x² - 4x + 4) + 7

= 5x² - 20x + 20 + 7

= 5x² - 20x + 27

The second equation given is illustrated as:

y = 3(x + 1)² + 12

y = 3(x + 1)(x + 1) + 12

y = 3(x² + 2x + 1) + 12

y = 3x² + 6x + 3 + 12

y = 3x² + 6x + 15

In conclusion, writing the equations in form of y = ax² + bx + c will be y = 5x² - 20x + 27 and y = 3x² + 6x + 15.

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There are 24 students in a class. if 16 are boys, what fraction of the students are boys?

Answers

Answer:

2/3 is the fraction of students who are boys.

Step-by-step explanation:

First of all, a fraction consists of two parts: The denominator and the numerator. The denominator is the whole, while the number is a part of the whole (and sometimes above).

1. Since in your question, there are 24 students in total in the class, the denominator will be 24.

2. You said that 16 of them are boys, so 16 is the numerator.

3. In a fraction, it will be 16/24.

4. 16/24 can be simplified into 2/3 since both 16 and 24 can be divided by 8.

So our final answer is 2/3.

The blue dot is at what value on the number line?

Answers

Answer:

blue dot have value of -6 in y inverse axis

#1) a normal distribution has a mean of 101 and a standard deviation of 4.2. what is the z-score of 105?

Answers

Step-by-step explanation:

z = (specific score - mean) / standard deviation

in our case

z = (105 - 101)/4.2 = 4/4.2 = 0.952380952... ≈ 0.95

as z-tables usually round the z-scores to hundredths.

The z-score of the normal distribution is 0.95.

What is normal distribution?

A probability distribution which is symmetric about the mean is the normal distribution, sometimes referred to as the Gaussian distribution.

It demonstrates that data that are close to the mean occur more frequently than data that are far from the mean. The normal distribution shows as a "bell curve" on a graph.

Z-score: A Z-score is just a metric that quantifies how closely a value relates to a mean of a set of values. Standard deviations from of the mean are used to measure Z-score.

A Z-score of zero means the data point is actually score is the same as the mean score.

The formula for z-score is-

[tex]Z=\frac{x-\mu}{\sigma}[/tex]

Z = standard score

x  is observed value = 105

[tex]\mu[/tex] is mean of the sample 101.

[tex]\sigma[/tex] is standard deviation of the sample 4.2.

Substitute all the values in the z-score formula;

z = ( 105 - 101)/4.2

z = 0.9523..

z  = 0.95

Therefore, the z-score the given normal distribution is  0.95.

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mAFD=90 mAFB=31 Find mCFE

Answers

The value of angle CFE in the diagram attached is 51 degrees.

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

From the diagram:

∠AFB = ∠CFD; ∠BFC = ∠DFE

Hence:

∠AFC = ∠CFE

∠AFD = ∠AFC + ∠CFD = ∠AFC + ∠AFB

90 = ∠AFC + 31

∠AFC = 51° = ∠CFE

The value of angle CFE in the diagram attached is 51 degrees.

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Graph the quadratic function by transforming the graph of f(x) = x^2. Give the minimum or maximum
vertex value and the equation for the axis of symmetry.

Answers

Answer: the maximum is (-2,5 )and the equation for the axis of symmetry is  x = -2

Explanation if you want:

for the min and max:  when a quadratic has a maximum point, that is the largest point that it will ever be at.  When it has a minimum, that is the smallest.

the +5 tells us that we have an upward movement of 5. The +2 means we actually move to the point -2.  bc: (x+2)=0 = -2so, from our initial function, those are the changes.

for the axis of symmetry: basically, this is the line that splits the graph into two equal parts.

it is the line that goes through the vertex (which we already know is (-2,5).

there u go

write the slope-intercept form of the equation of each line

1. 9x -7y = -7

2. 11x -4y = 32

3. 11x -8y =-48

Answers

Answers
1. y=9/7x +1
2. y= 11/4x -8
3. y= 11/8x +6
See work in attachment

Jack is in a helicopter and looking down at two friends’ homes. The angle of depression to the first home is 72°. The angle of
depression to the second home is 49°. If the homes are 420m apart, what is the distance between the helicopter and the first
home?

Answers

The distance between the helicopter and the first home is 369. 87 m

How to solve the distance using the angle of depression?

The distance between the helicopter and the first home can be found using sine law,

Therefore,

180 - 72 - 49 = 59 degrees.

Hence,

420 / sin 59 = A / sin 49°

where

A  = distance form the first home to the helicopter.

cross multiply

420 sin 49 = A sin 59°

A = 420 sin 49 / sin 59

A = 316.978023694 / 0.8571673007

A = 369.869339199

A = 369. 87 m

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From Andys house to Billys hometown you can travel by 3 roads. And to get from Billys hometown to Willies's house you can travel by 5 roads. How many possible wats are there to travel from andys house to willies house?

From Dan's ranch one road is built to get to Andy's house and two roads are built to get to Willies house (see previous problem). How many way are there now to get from Andys house to willies house?

Answers

Andy to get to Willie's house = 15 ways

Andy to get to Willie's house = 45 ways

How to determine the ways

From the information given, we have that from

Andy's house to Billy's  hometown = 3 roads

Billy's hometown to Willies house = 5 ways

To travel from Andy's house to Willies house, we should multiply the number of ways

= 3 × 5

= 15 ways

Dan's ranch to Andy's house = 1 road

To Willie's house = 2 roads

For Andy to get to Willie's house, we have;

= 3 × 15

= 45 ways

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If 0 is greater than f but less than or equal to 90, and cos(22f-1) = sin(7f+4), what is the value of f?

Answers

The value of f from the given expression is 3

Sine and cosine function

Given the expression below

cos(22f-1) = sin(7f+4),

This can also be expressed

cos(22f-1) = cos(90-7f-4)

cos(22f-1) = cos(86-7f)

22f - 1 = 86 - 7f

Collect the like terms

22f+7f = 86 + 1

29f = 87

f = 3

Hence the value of f from the given expression is 3

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a nickel has 5 grams what is the mass of a nickel in milligrams

Answers

The mass of the same nickel which is 5 grams in milligrams is 5,000 milligram.

Weight

1 gram = 1000 milligram

Weight of a nickel = 5 gram

Weight of same nickel in milligram = 5 grams × 1000

= 5,000 milligram

Therefore, the mass of the same nickel is 5,000 milligram

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Match the vocabulary word with the correct definition.

1. a line segment where two faces meet
edge
2. a three-dimensional figure with one circular base
dimensions
3. to separate something into its basic parts
area
4. units used to measure the volume of a three-dimensional figure
cube
5. a three-dimensional figure with two parallel, congruent, circular bases and a curved surface
decompose
6. a three-dimensional figure made of six congruent squares
composite figure
7. a geometric figure that is made up of two or more basic shapes
base
8. the length of a plane figure; or, a special face of a solid figures
cone
9. the measurement of the space inside a plane figure
cylinder
10. measurements indicating the size and shape of an object, such as length and width
cubic units

Answers

Answer:

1. edge

2. cone

3. decompose

4. cubic units

5. cylinder

6. cube

7. composite figure

8. base

9. area

10. dimensions

Charlie deposits $600 into an account that pays simple interest at a rate of 2% per year. How much interest will he be paid in the first 3 years?

Answers

Answer:

Step-by-step explanation:

rounded to the nearest cent his answer would be $212.24

The average age of the members of a country club is 54 years old. If there are ten 36-year-olds, fifty 60-year-olds, and twenty other members all of the same age, what is the age of the twenty other members

Answers

The age of twenty other members is 48 years.

Given that the average age of the members of a country club is 54 years old and if there are ten 36-year-olds, fifty 60-year-olds, and twenty other members all of the same age.

The average is defined as the sum of a set of values divided by n, where n is the total set of values. A mean is another name for an average.

The average age is given by=(Sum of ages)/(Number of members (n))

Let x be the age of other twenty members.

Given A=54  years and n=10+50+20=80

So, now, we will substitute the values in the formula, we get

[tex]\begin{aligned}54&=\frac{10\times 36+50\times 60+20\times x}{10+50+20}\\ 54&=\frac{360+3000+20x}{80}\\ 4320&=3360+20x\end[/tex]

Further, subtract 3360 from both sides, we get

4320-3360=3360+20x-3360

960=20x

Furthermore, we will divide both sides with 20, we get

960/20=20x/20

48=x

Hence, the age of the twenty other members when average age of the members of a country club is 54 years old is 48 years.

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NEED HELP ASAP
Factor the trinomial: x² +22x + 72. Explain your steps.

Answers

I got you, bro

Answer:

(x+4)(x+18)

Explanation

Let's factor x2+22x+72

x2+22x+72

The middle number is 22 and the last number is 72.

Factoring means we want something like

(x+_)(x+_)

Which numbers go in the blanks?

We need two numbers that...

Add together to get 22

Multiply together to get 72

Can you think of the two numbers?

Try 4 and 18:

4+18 = 22

4*18 = 72

Fill in the blanks in

(x+_)(x+_)

with 4 and 18 to get...

(x+4)(x+18)

Answer:

(x+4)(x+18)

Answer:

(x+4)(x+18)

Step-by-step explanation:

Using the factorisation method :

We need 2 numbers that multiply to give +72 and add to give +22 :

To find these numbers we write out all the factors of 72 :

1, 72

2 , 36

3 , 24

4 , 18    ----> These must be the numbers as 4+18 = 22

Now we split +22x into +4x and +18x :

x² + 4x + 18x + 72

Factor the first 2 terms together and the last two terms :

x(x+4) + 18(x+4)

Keep 1 bracket and terms outside the brackets collect them into one:

(x+4)(x+18)

This is our final answer

Hope this helped and have a good day

Given the sequence 4, 8, 16, 32, 64, ..., find the explicit formula.

Answers

Answer:

[tex]\sf 2^{(n+1)}[/tex]

Step-by-step explanation:

Explicit formula is used to represent all the terms of the geometric sequence using a single formula.

  [tex]\sf \boxed{\bf t_n=ar^{(n-1)}}[/tex]

Here, a is the first term.

r is the common ratio.

r = second term ÷ first term

4, 8,16,32,64,.....

    a = 4

    r = 8 ÷4 = 2

[tex]\sf t_n =4*2^{(n-1)}[/tex]

    [tex]\sf = 4*2^n * 2^{(-1)}\\\\ = 4*2^n*\dfrac{1}{2}\\\\ = 2*2^n[/tex]

   [tex]\sf = 2^{(n+1)}[/tex]

What is the solution to 9|x + 8| > 45?

Answers

The solution to the inequality is x > -3 or x < -13

How to solve the inequality?

The inequality is given as:

9|x + 8| > 45

Divide through  by 5

|x + 8| > 5

Split the inequality

x + 8 > 5 or x + 8 < -5

Solve for x

x > -3 or x < -13

Hence, the solution to the inequality is x > -3 or x < -13

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5[tex]5x-3y=34\\x-2y=4[/tex]

Answers

the correct answer is 4 as it is equaled when added

The sum of two numbers is 140, and their difference is 20. What are the two numbers?

Answers

Answer:

60 and 80.

Step-by-step explanation:

If the numbers are x and y:

x + y = 140

x - y = 20     Adding:

2x = 160

x = 80

So y =  140 - 80 = 60.

Answer:

80 and 60

Step-by-step explanation:

Expressing the Word Problem mathematically.

Let the first number be X.

Let the second number be Y.

From the question,

[tex]x + y = 140 - - - - - (1) \\ x - y = 20 - - - - - (2) \\ From \: equation \: (2) \\ x = 20 + y - - - - - - (3) \\ Substitute \: equation \: 3 \: into \: 1 \\ 20 + y + y = 140 \\ 20 + 2y = 140 \\ 2y = 140 - 20 \\ 2y = 120 \\ Dividing \: bothsides \: by \: 2 \\ \frac{2y}{2} = \frac{120}{2} \\ y = 60 \\ Substitute \: y \: into \: quation \: 3 \\ x = 20 + 60 \\ x = 80 \\ Therefore, \: x = 80 \: and \: y = 60[/tex]

The two numbers are 80 and 60

Find the common ratio for the geometric sequence defined by the formula: an=40(2‾√)n−1 a n = 40 ( 2 ) n − 1

Answers

The ratio of the geometric sequence 40[tex]2^{n-1}[/tex] is 2.

Given that geometric sequence is 40*[tex]2^{n-1}[/tex] and we have to find the common ratio of all the terms.

Geometric sequence is a sequence in which all the terms have a common ratio.

Nth termof a GP is a[tex]r^{n-1}[/tex] in which a is first term and r is common ratio.

Geometric sequence=40*[tex]2^{n-1}[/tex]

We have to first find the first term, second term and third term of a geometric progression.

First term=40*[tex]2^{1-1}[/tex]

=40*[tex]2^{0}[/tex]

=40*1

=40

Second term=40*[tex]2^{2-1}[/tex]

=40*[tex]2^{1}[/tex]

=40*2

=80

Third term=40*[tex]2^{3-1}[/tex]

=40*[tex]2^{2}[/tex]

=40*4

=160

Ratio of first two terms=80/40=2

Ratio of next two terms=160/80=2

Hence the common ratio of geometric sequence is 2.

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PLEASE HELP ASAP!!!!!!!
Given TU is parallel to XW

Prove XW = 8

Which step is missing?

Answers

The missing step in the proof is: D. Statement: XW/UT = XV/UV, Reason: Corresponding sides of similar triangles are proportional.

What are Similar Triangles?

When two triangles are proven to be similar to each other, their corresponding angles would be congruent while their corresponding sides will be proportional to each other.

In the proof given, both triangles are proven to be similar by the AA similarity theorem, therefore their corresponding sides will be proportional. This implies that: XW/UT = XV/UV.

The answer is D.

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Find the interest on 16,100 for 4 years and 6months at 10% compounded quarterly.

Answers

25,110.51 is the total amount accrued over the course of 4.5 years, principle plus interest, on a principal of 16,100.00.

Compound interest calculation

We may employ the compound interest future value formula provided by:

[tex]A=P(1+r/n)^{nt}[/tex]

Where A is the final amount, P stands for the current value,

r=interest rate, n represents how many times interest is compounded annually, and t represents the number of years.

In this case,

P= 16100

r = 10%

t = 4 years and 6 months=4.5 years

n=4

So, A=[tex]16100(1+0.1/4)^{4*4.5}[/tex]

A= [tex]16100(1+0.025)^{18}[/tex]

A= 25110.51

So, 25,110.51 is the total amount accrued over the course of 4.5 years, principle plus interest, on a principal of 16,100.00 at a rate of 10 percent per year compounded four times each year.

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One ticket to a ride of the merry-go-round ​at the Sunday Fair costs $2.

Jenny and her friends have $36 with them. If, after buying tickets to the merry-go-round, they want to be left with no less than $15 , find the maximum number of tickets that they can buy.

Answers

Considering the definition of an inequality, the maximum number of tickets that they can buy is 10.

Definition of inequality

An inequality is the existing inequality between two algebraic expressions, connected through the signs:

greater than >.less than <.less than or equal to ≤.greater than or equal to ≥.

An inequality contains one or more unknown values ​​called unknowns, in addition to certain known data.

Solving an inequality consists of finding all the values ​​of the unknown for which the inequality relation holds.

Maximum number of tickets that they can buy

In this case, you know that

One ticket to a ride of the merry-go-round ​at the Sunday Fair costs $2.Jenny and her friends have $36 with them.After buying tickets to the merry-go-round, they want to be left with no less than $15.

So, they want to spend on the purchase of tickets for the merry-go-round a value less than or equal to $36 - $15= $21.

Being "x" the maximum number of tickets that they can buy, the inequality that expresses the previous relationship is

2x≤ 21

Solving:

x≤ 21÷2

x≤ 10.5

Then, the maximum number of tickets that they can buy is 10.

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Mary won $200,000 in a state lottery. she first paid income tax of 30% on the winnings. she invested some of the rest at 1.5% and some at 4%, earning $4,350 interest per year. how much did she invest at each rate?

Answers

Marry rate of investment is 4%.

Lets solve it through simple steps,

30% 0f $200,000 = $60,000

$200,000-$60,000 = $140,000

Rate 1.5%

Rate 4% = (140,000-x)

Interest earned = $4,350

1.5x+4(150,000-x)=4350*100

1.5x+600,000-4x=435,000

1.5x-4x=435,000-600,000

-2.5x=-165,000 /-2.5

x=66000

$ 66,000  1.5%

Balance = $74,000 at  4%

Hence the rate is 4%

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Which of the following is a limitation of using a model to study a natural event? A. The results of a model event are often much more accurate than those of the actual event. B. The model and the results it generates will have no relation at all to the actual event. C. The size and design of the model will be too similar to the actual event. D. The results of a model event may not be similar enough to the results of the actual event. What point is the artist trying to make through this cartoon? Extended Answer IT IS ALGEBRA!!!! HELP ME PLZ15. Evan is sewing trim on a pair of shorts. He needs four equal length pieces of trim to put two stripes down each side of the shorts. The teacher gives him a piece of black trim that is 185 cm long. He measures and cuts 4 equal lengths. He ends up with a small piece of leftover trim that is 13 cm long. How long is each piece of trim?a) Write an equation to represent this situation. the sum of two numbers is 84 and one of them is 12 more than the other what are the two numbers -2x^3+15x^2-22x-15; (x-3) polynomial function 104(9y - 5)(12x + 2019Solve for x What is the equation for a line with a slope of 5 and a y-intercept of 11? What is the y-intercept Bartender slides a beer mug at 1.1 m/s towards a customer at the end of the bar which is 1.8 m tall. The customer makes a grab for the mug and misses and mug sails at the end of the bar. a) How far away from the end of the bar does the mug hit the floor 26. Find the volume of 111.6 grams of NH3 gas. Which weather state is most likely to cause an increase in precipitation?A) Winds blowing from the southB) An air temperature of 15 CC) High humidityD) High air pressure Giving brainliest!!!!!!!!!!!!! i dont understand this please help!!! Helpppppppp meeeeeeeee Complete with the correct form of the present perfect or pluperfect subjunctive of the indicatedverb based on each sentence.1. No creo que l lo- (ver)2. No habra credo que l lo. (ver)3. Temo que algo les(pasar)4. Tem que algo les(pasar)5. Sera posible que ellos no me? (entender)6. Es posible que ellos no me? (entender)7. Espero que ellaxito. (tener)8. Quin dudaba que ellaxito? (tener)9. Es raro que ellosas. (hablar)10. Seria raro que ellosas. (hablar) [What goes here?] The White House. Office of the Press Secretary, 25 Jan. 2011. Web. 24 Sept. 2012. (http://www.whitehouse.gov/state-of-the-union-2011). Which of the following goes in the missing section of this external citation for President Obama's speech? (5 points) Name of the website Title of speech The website address Author of the speech The map shows lowlands and highlands of ancient Greece.A map titled Physical Map of Ancient Greece. A key shows Lowlands in green and Highlands in yellow. Thebes, Athens, Corinth, and Sparta are labeled. They are all located in coastal areas with green shading.Which statement best explains the locations of city-states on the map?All of the city-states were located on islands.All of the city-states were located in the lowlands.All of the city-states were located on mainland Greece.All of the city-states were located in mountainous areas.I know it's not D, dont say that it is Solve. Then, rewrite the complete number sentence in decimal form Help me on question 3 pls Ill Karl you as brainliest Which of the following statements is NOT a property of parallelograms?Opposite angles are congruent.Opposite sides are parallel.Parallelograms have 4 straight sides.All sides are parallel.