S is a subset within a universal set, u. if s = {x, y, 4, 9, ?}, which could describe u?

Answers

Answer 1

The set that best describes the universal set U is; U = {keys on a keyboard }

How to determine mathematical sets?

We are told that S is a subset within a universal set U.

Now, from the subset S = (x, y, 4, 9, ?), we will need to find among the given sets the one that describes the best set.

From the subset, we see that the Universal set will be keys on a key board due to the fact that the keys on a keyboard will have alphabets, numbers and punctuation marks mentioned in the set.

Therefore U = {keys on a keyboard } will be the correct answer.

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Related Questions

find the linear measure of arc vw on circle p, where pv = 32 inches and angle vpw = 84. use 3.14 for pie and estimate your answer to two decimal places.

Answers

The linear measure of arc vw as described in the task content is; 46.89in.

What is the linear measure of the arc vw?

It follows from the task content that the radius of the circle with center p is given as pv = 32in. and the angle subtended by the arc is; 84.

On this note, the measure of arc vw is;

= (84/360) × 2 × 3.14 × 32

= 46.89 inches.

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Use the compound interest formulas A=P1+
r
nnt and A=Pert to solve the problem given. Round answers to the nearest cent.
Find the accumulated value of an investment of $25,000 for 3 years at an interest rate of 7% if the money is a. compounded​ semiannually; b. compounded​ quarterly; c. compounded​ monthly; d. compounded continuously.

Answers

The accumulated value of an investment if the money is a. compounded​ semiannually; b. compounded​ quarterly; c. compounded​ monthly; d. compounded continuously is $30731.4 $ , $30785.98  $30823.14 , 30841.95

What is Interest ?

Interest is the amount received by a person as a result of investing certain amount of money for a certain period of time.

It is given that

Principal = $ 25000

Time = 3 years

Interest Rate = 7 %

The amount is given by

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

Compounded semiannually

n = 2

Compounded Quarterly

n = 4

Compounded Monthly

n =12

Compounded Continuously

P = P₀ [tex]\rm e ^{rt}[/tex]

Therefore the accumulated value for

compounded Semiannually is

[tex]\rm A = 25000( 1+ \dfrac{7}{200}) ^{2*3}[/tex]

A = $30731.4

Compounded Quarterly

[tex]\rm A = 25000( 1+ \dfrac{7}{400}) ^{4*3}[/tex]

A = $30785.98

Compounded Monthly

[tex]\rm A = 25000( 1+ \dfrac{7}{1200}) ^{12*3}[/tex]

A = $30823.14

Compounded Continuously

[tex]\rm P = 25000 e ^{ 7 * 3 }[/tex]

P = $30841.95

Therefore the accumulated value of an investment if the money is

a. compounded​ semiannually; b. compounded​ quarterly; c. compounded​ monthly; d. compounded continuously is

$30731.4 $ , $30785.98  $30823.14 , 30841.95

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If a plane including pints p,q and r cuts through the cube

Answers

If a plane including pints p,q, and r cuts through the cube, the shape that will be gotten is a triangle.

What is a triangle?

A triangle is a polygon with three edges and three vertices. The sum of the internal angles of a triangle is equal to 180 degrees.

In this case, when a plane including pints p,q, and r cuts through the cube, the shape that will be gotten is a triangle.

The diagram is attached.

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Aiden has a smart phone data plan that costs $25 per month that includes 2 GB of data, but will charge an extra $10 per GB over the included amount. How much would Aiden have to pay in a month where he used 2 GB over the limit? How much would Aiden have to pay in a month where he used went over by xx GB?

Total cost when over by 2 GB:
Total cost when over by xx GB:
need answer quick

Answers

Answer:

45 dollars for going over 2GB

Step-by-step explanation:

If he pays 25 dollars every month and he goes over 2 GB then he’ll have to pay 20 dollars extra since every GB over cost 10 dollars. The equation is 25+10+10 which equals 45.

An expression is a mixture of terms that are combined by using operations such as subtraction, addition, multiplication, and division. 

The amount when 2 GB is used over the limit in a month is $45.

What is an expression?

An expression is a mixture of terms that are combined by using operations such as subtraction, addition, multiplication, and division. 

Example: 2x + 3x2  is an expression.

We have,

Cost of data plan with 2 GB = $25

Cost of one GB = $10

The equation that can be used to find the amount to pay when using x GB over the limit in a month:

= 25 + 10x

The amount when 2 GB is used over the limit in a month:

= 25 + 10 x 2

= 25 + 20

= $45

Thus,

The amount when 2 GB is used over the limit in a month is $45.

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What is the measure of

Answers

60.......................

Make u the subject formula
Please help

X=4uy/M​

Answers

Answer:

[tex]\frac{XM}{4y}=u[/tex]

Step-by-step explanation:

First, multiply both sides by M.

X M = 4uy

Now, divide both sides by 4y.

[tex]\frac{XM}{4y} =\frac{4uy}{4y}[/tex]

Therefore,

[tex]\frac{XM}{4y}=u[/tex]

Is this correct? If not then whats the answer?????
(image below)

Answers

Yes that’s answer is right

Cans of wood varnish come in three sizes.

Small can: A 200 ml can costs £0.88.
Medium can: A 500 ml can costs £1.32.
Large can: A 1 litre can costs £3.60.

Calculate the cost of 1 litre for the small and medium cans.
Give your answer in pounds to 2 dp.

Answers

The cost of 1 liter for the small and medium cans is 4.4 and 2.4.

What is Unitary method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

As,  

Small can: A 200 ml can costs £0.88.

Medium can: A 500 ml can costs £1.32.

Large can: A 1 litre can costs £3.60.

Now, 200 ml = 0.2 l

500 ml = 0.5 l

For 0.2 l = 0.88

For 1 l= 0.88/0.2

For 1 liter = 4.4

For 0.5l medium can = 1.32

For 1 l medium can= 1.32/0.5

For 1 l medium can = 2.4

Hence, cost of 1 liter for the small can is £ 0.88 the cost of 1 liter for the medium can is £ 2.4.

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f(x) = 4x² + 7x-3
g(x) = 6x³ – 7x² - 5
-
Find (f + g)(x).

Answers

Answer:

(f + g)(x) = 6x³ - 3x² + 7x - 8  

Step-by-step explanation:

Another way of writing (f + g)(x) is f(x) + g(x). So, this question is asking you to combine both of the functions.

f(x) + g(x)                                          

(4x² + 7x - 3) + (6x³ - 7x² - 5)                      <----- Insert functions

-3x² + 7x - 3 + 6x³ - 5                                 <----- Combine 4x² and -7x²

-3x² + 7x - 8 + 6x³                                       <----- Combine -3 and -5

6x³ - 3x² + 7x - 8                                       <----- Rearrange

r=
help me please thank u​

Answers

Answer:

[tex]\fbox {r = 34}[/tex]

Step-by-step explanation:

Finding IQ and RJ by tangent rule :

⇒ IQ = QK = 10

⇒ KR = RJ = 8

Finding PJ :

⇒ PJ = 32 - 8

⇒ PJ = 24

∴ But PJ = PI (by tangent rule)

⇒ PI = 24

Finding r :

⇒ PI + IQ

⇒ 24 + 10

r = 34

Y = 3x + 10
Y = 2x - 8
find the substitution
Show your work please ill give brainlyest ​

Answers

Answer:

x = -18, Y = -44

Step-by-step explanation:

Since Y = 2x - 8, we can substitute that into the first equation:

2x - 8 = 3x + 10

3x - 2x = -8 - 10

x = -18

Now we plug x = -18 back into the second equation:

Y = 2(-18) - 8

Y = -36 - 8

Y = -44

On a coordinate plane, solid circles appear at the following points: (negative 2, negative 5), (negative 1, 3), (1, negative 2), (3, 0), (4, negative 2), (4, 4).
Which explains why the graph is not a function?

Answers

The input value of 4 results in two outputs - 4 and -2. Since the same input results on more than one output, the relation cannot be a function.

PLEASE HELP ANSWER MY QUESTION ASAP!

Answers

[tex]\quad \huge \quad \quad \boxed{ \tt \:Answer }[/tex]

[tex]\qquad \tt \rightarrow \: a_{33} = 1\degree[/tex]

____________________________________

[tex] \large \tt Solution \: : [/tex]

In a matrix, [tex] \sf a_{ij} [/tex] represents an element in " i " th row and " j " th column.

Henceforth, element [tex] \sf a_{33} [/tex] represents element in 3rd row and 3rd column.

[tex]\qquad \tt \rightarrow \:a_{33} = 1[/tex]

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

Part A Can image 1 be the reflected figure from question 1? Explain your answer.

Answers

The resulting reflected image would be congruent to image 1, i.e. have congruent corresponding sides.

What is transformation?

Transformation is the movement of a point from its initial location to a new location. Types of transformation are translation, reflection, rotation and translation.

Reflection is a rigid transformation, hence it does not affect the size and shape of the object or pre-image.

The resulting reflected image would be congruent to image 1, i.e. have congruent corresponding sides.

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Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!ASAP

Answers

The ordered pair of the given equation will be ( 3, 6 ) and ( -3, 18).

What is a function?

A function is defined as the expression that set up the relationship between the dependent variable and independent variable.

The given functions are:-

F(x) =x²-2x+3

F(x) = -2x + 12

When we plot the graph of the function we will see that the line -2x +12 cut the parabola at points ( -3, 18 ) and ( 3, 6 ) so these are the ordered pairs of the two functions. The graph of the functions is also attached with the answer.

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Lucy is knitting a blanket and needs to buy some more yarn. at her local craft store, 2 skeins of yarn cost $7 and 8 skeins of yarn cost $28. what is the constant of proportionality in this direct variation?

Answers

Answer:

4

Step-by-step explanation:

Proportionality between skein values

8:2=4:1

Proportionality between cost values

28:7=4:1

The variation(both the skein values and cost values) has the constant of 4 ie the 1st skein value × 4= the last skein value & the 1st cost value × 4=the last cost value

please help thank you !

Answers

Answer:

6.6 cm and 14.6 cm

Step-by-step explanation:

(a)

the length of arc AB is calculated as

AB = circumference of circle × fraction of circle

     = 2πr × [tex]\frac{95}{360}[/tex]

     = 2π × 4 × [tex]\frac{95}{360}[/tex]

     = 8π × [tex]\frac{95}{360}[/tex]

     = [tex]\frac{8\pi (95)}{360}[/tex]

     ≈ 6.6 cm ( to the nearest tenth )

(b)

the perimeter (P) of sector AOB is

P = r + r + AB = 4 + 4 + 6.6 = 14.6 cm

Step-by-step explanation:

3.

the circumference of a circle is

2×pi×r

r = 4 cm

so, we know, the full circle circumference is

2×pi×4 = 8×pi = 25.13274123... cm

a.

the arc length of AB is the part of the whole circumference that corresponds to 95° out of the full 360° of a whole circle.

arc AB = 8×pi × 95/360 = pi × 95/45 = pi × 19/9 =

= 6.632251158... cm

b.

the perimeter of OAB (the "pie slice") is then the arc AB plus 2 radius lengths (from the end points on the arc to the center of the circle) :

pi × 19/9 + 2×4 = pi×19/9 + 8 = 14.632251158... cm

The point (-6, 4) is reflected over the x-axis. Find the point of reflection.

Answers

Answer:

-6, -4

Step-by-step explanation:

what does y=mx+b equal

Answers

Answer:

slope intercept form

Step-by-step explanation:

y=mx+b is slope-intercept form

I hope this helps :)

35 points! Which of the following polynomials has an even degree and a positive leading coefficient?

Answers

Answer:

1

Even degree: the start and the end of the graph goes either both up or down (1 and 4)

positive leading coefficient: right side of the graph is going up (1 and 2)

Combine the radicals 4√7 + 3√28

Answers

Answer:

10√7

Step-by-step explanation:

you can simplify the second radical and break it up into

√4 * √7 which then simplifies to 2√7 which you then multiply by 3. 4√7 + 3(2√7) which becomes 4√7 + 6√7 and then you just add the numbers Infront to get 10√7

someone please help me with this question!! ​

Answers

The Answer is in simplest form:-

4/9

=0.4444444444

Answer:

4/9

Step-by-step explanation:

1) since we know that; when a fraction is raised to a negative power, we take reciprocal of the fraction and raise both the numerator and the denominator to a positive power,

(27/8)^-⅔

that's how we write it then

2) we take the reciprocal and multiply with positive power respectively

(8/27)⅔

that is by expanding

8^⅔/27^⅔

enter it in your calculator and you should get

4/9

hope that helps!

128 (4 + 2) = (128 ÷ 4) + 2
A. True
B. False

Answers

Answer:

B. False

Step-by-step explanation:

Just like last time, solve it first to check.

128(4+2)=(128/4)+2

Remember PEMDAS, parenthesis first.

128(6)=(32)+2

Now multiply the left side and add the right side.

128*6=768. The star sign is just another way to write a multiplication sign.

32+2=34

768≠34

This is a false statement. 768 does not equal 34.

Hope this helps!

If not, I am sorry.

Event A: Spinning violet or yellow on the spinner.

Event B: Rolling an even number on a number cube.


What is P(A and B)?

Answers

Answer:

[tex]\sf P(A \cap B)=\dfrac{1}{4}[/tex]

Step-by-step explanation:

[tex]\sf Probability\:of\:an\:event\:occurring = \dfrac{Number\:of\:ways\:it\:can\:occur}{Total\:number\:of\:possible\:outcomes}[/tex]

Event A - spinning violet or yellow

Assuming that the spinner has 4 different colors (red, orange, violet and yellow) - see attachment.

[tex]\implies \sf P(A) = \dfrac{2}{4}=\dfrac{1}{2}[/tex]

Event B - rolling an even number

Assuming the number cube has 6 sides numbered 1, 2, 3, 4, 5 and 6.  Therefore, the even numbers are 2, 4 and 6.

[tex]\implies \sf P(B)=\dfrac{3}{6}=\dfrac{1}{2}[/tex]

Events A and B are independent events as the outcome of one event does not affect the outcome of the other event.

For independent events A and B:

[tex]\implies \sf P(A \cap B)=P(A)P(B)[/tex]

To find P(A and B), substitute the found values of P(A) and P(B):

[tex]\implies \sf P(A \cap B)=\dfrac{1}{2} \times \dfrac{1}{2}=\dfrac{1}{4}[/tex]

P(A)

2/41/20.5

P(B)

3 even nos are 2,4,6

3/61/20.5

P(A[tex]\cap[/tex])

0.5²0.25 or 1/4

Calculate the AREA of the shape below. Give your answer in cm²

Answers

Answer:

[tex] \boxed{\bf 26\: cm^2} [/tex]

Step-by-step explanation:

We got two shapes in the given figure,on the right we got a rectangle and on the left we have a square.

Area of rectangle:-

[tex]\bf 5 \times 2[/tex][tex]\bf 10 \:cm^{2} [/tex]

Area of square :-

[tex]\bf 4 \times 4[/tex][tex]\bf 16 \: {cm}^{2} [/tex]

Total area :-

[tex]\bf 10 + 16[/tex][tex]\boxed{\bf 26 \: {cm}^{2} }[/tex]_________________________

Answer:

26 cm^2

Step-by-step explanation:

you have two rectangles, the bigest has the base of 6cm and the height of 4cm, the area is 6 * 4 = 24cm ^ 2, the other rectangle has the base of 6 - 4 = 2 and the height of 5 - 4 = 1, 2*1=2.

we add the dimensions and we have the area of ​​the complete figure 24 + 2 =

26 cm ^ 2

Square measures 8 m on each side if each side is written by 1/4 of eight originally the premiere of the new square will be blank meters and its area blank square meters

Answers

Step-by-step explanation:

so, if I understand this correctly, the original square had a side length of 8 m.

now we transform this square into one with side length 1/4×8 = 8/4 = 2 m.

and the questions are what are the perimeter and the area of that new (smaller) square ?

the perimeter of a square is

4× side length = 4×2 = 8 m

the area of a square is

side length ² = 2² = 4 m²

Write logb(x/y) as two logs

Answers

Answer:

[tex] log_{b}(x) - log_{b}(y) [/tex]

Your are designing a rectangular birthday card for a friend. You want the card's length to be 1 inch more than twice the card's width. The area of the card is 88 square inches. What is the width of the card to the nearest tenth of an inch?

Answers

The width of the card to the nearest tenth of an inch is 6.15 inches

Area of rectangle

Width = xLength = 2x + 1Area = 88 square inches

Area of a rectangle = Length × Width

88 = (2x + 2) × x

88 = 2x² + 2x

2x² + 2x - 88 = 0

x = -b ± √b² - 4ac / 2a

= -2 ± √2² - 4(2)(-88) / 2(2)

= -2 ± √4 - (-704) / 4

= -2 ± √708 / 4

= -1/2 ± √177/2

x = 6.15 or -7.15 inches

The width of the rectangle can not be negative, so, 6.15 inches is the width.

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A bag contains 20 identical sweets apart from the colour: 10 are pink, 7 are green and 3 are yellow. Jovian randomly selects wtwo sweets from the bag, one after the other, ans eats them. Find the probability that:
i) she eats two pink sweets,
ii)the first sweet is green and the second sweet is yellow,
iii) she eats exactly one pink sweet,
iv)neither sweet is green​

Answers

Answer: Relative frequency and probability are similar terms and the answer to both of them are the same. What I mean is that, even if the question asks for probability or relative frequency, the answer will remain the same. The basic difference is that relative frequency is used when probability is being estimated using the outcomes of an experiment or trial, when theoretical probability cannot be used.
We can write the probability in the help of a normal formula,

P(A) = n(B)/n(S)

P(A) is the probability of an event “A” n(B) is the number of favorable outcomes. n(S) is the total number of events in the sample space.

One more thing you might need to know is that, in probability, and means multiplication and or means addition.
And = multiplication
Or = addtion

So from the above equation, n(S) , the total number " 10 + 7 + 3" is 20.

i) 2/20 and in simplified terms, 1/10
ii) 7/20 * 3/20 = 21/400
iii) 1/20
iv) 13/20

∩_∩
(„• ֊ •„)♡
┏━∪∪━━━━┓
    hope it helped
┗━━━━━━━┛

Write a quadratic function f whose zeros are 2 and 7.

Answers

Answer:

f(x) = (x - 2)(x - 7)

Step-by-step explanation:

an easy way to write a quadratic function who has zeroes of certain numbers is to use this format- f(x) = a(x - p)(x - q)

in this format

the p and the q are both zeroes

it does not matter what the a value is

an example for when the zeroes are 2 and 7 could be

f(x) = (x - 2)(x - 7)

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