What does that sign mean? What’s the name?

What Does That Sign Mean? Whats The Name?

Answers

Answer 1

Pie. It’s pie 3.14.... the name of that sign is pie

Answer 2

Answer:

That symbol represents pi.

Step-by-step explanation:

Pi is used by mathematicians to represent the ratio of a circle's circumference to its diameter.  It is approximately equal to 3.14159. Hope this helps!


Related Questions

find the product.(x+ut)(9x-8ut)​

Answers

Final answer:

To find the product of the binomials (x + ut)(9x - 8ut), we use the FOIL method and combine like terms, resulting in the expression 9x² + uxt - 8u²t².

Explanation:

To find the product of the binomials (x + ut)(9x - 8ut), we will use the distributive property (also known as the FOIL method in this case), which involves multiplying each term in the first binomial by each term in the second binomial:

First, multiply the first terms: x and 9x, which gives 9x².Outer, multiply the outer terms: x and -8ut, which gives -8uxt.Inner, multiply the inner terms: ut and 9x, which gives 9uxt.Last, multiply the last terms: ut and -8ut, which gives -8u²t².

Combining like terms, the final product is:

9x² + 9uxt - 8uxt - 8u²t²

Since 9uxt and -8uxt are like terms, we can simplify further:

9x² + uxt - 8u²t²

An architect is designing a scale model that is similar to an actual building in the shape of a triangular prism. If the ratio of the height of her scale model to the height of the actual building is 1:98, what is the ratio of the volume of the scale model to the volume of the building?

Answers

Answer:

The ratio of the volume of the scale model to the volume of the building is [tex]\frac{1}{941,192}[/tex]

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube, and the ratio of its corresponding sides is equal to the scale factor

so

Let

z-----> the scale factor

x----> the volume of the scale

y----> the volume of the building

[tex]z^{3}=\frac{x}{y}[/tex]

In this problem we have

[tex]z=\frac{1}{98}[/tex]

substitute

[tex](\frac{1}{98})^{3}=\frac{x}{y}[/tex]

[tex](\frac{1}{941,192})=\frac{x}{y}[/tex]

rewrite

[tex]\frac{x}{y}=\frac{1}{941,192}[/tex]

Round your answer to two decimal places

Answers

Answer:

B. 0.56.

Step-by-step explanation:

That would be the number of sophomore / total number of people

= 77 / 137

= 0.56.

The probability that the randomly chosen person from this group is a sophomore is B. 0.56.

What is Probability?

Probability is simply the possibility of getting an event. Or in other words, we are predicting the chance of getting an event.

The value of probability will be always in the range from 0 to 1.

Given that,

Total number of people attended in the school event = 137

Number of sophomores in the group = 77

To find the probability, we have to divide the number of desired outcomes by the total number of outcomes.

Here total number of outcomes is 137 and the number of sophomores is 77.

Probability = 77 / 137 = 0.562 ≈ 0.56

Hence the probability is 0.56.

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The perimeter of this isosceles triangle is 22 cm. If one side is 6 cm, what are the possible lengths of the other two sides?

Answers

Final answer:

In an isosceles triangle with a perimeter of 22 cm and one side of 6 cm, the other two sides must be equal in length and must be 8 cm each to satisfy the perimeter condition.

Explanation:

The question asks for the possible lengths of the other two sides of an isosceles triangle with a perimeter of 22 cm, where one side is already known to be 6 cm. In an isosceles triangle, the two other sides must be of equal length because an isosceles triangle has two sides that are the same.

Let's denote the length of these two equal sides as 'x'. The perimeter of a triangle is the sum of the lengths of all three sides:

6 cm + x + x = 22 cm
2x + 6 cm = 22 cm
2x = 22 cm - 6 cm
2x = 16 cm
x = 8 cm

Therefore, the other two sides of the triangle must each be 8 cm long.

It's important to note that all three sides of a triangle must satisfy the triangle inequality theorem, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side. In this case, the other two sides cannot both be less than 6 cm, otherwise, they will not form a triangle with the third side of 6 cm. The solution provided meets this requirement.

In this figure m<3=130
What is m<6 ?

Answers

Answer: [tex]m\angle6=50\°[/tex]

Step-by-step explanation:

You can observe in the figure two parallel lines that are intersected by a transversal and several angles are formed.

The angles m∠3 and m∠6 are located inside the parallel lines and on one side of the transversal, this angles are known as "Consecutive interior angles" and they are supplementary (which means that they add up 180°).

Therefore, you know that:

[tex]m\angle3+m\angle6=180\°[/tex]

So you can substitute m∠3=130° and solve for m∠6. Then you get:

[tex]130\°+m\angle6=180\°\\m\angle6=180\°-130\°\\m\angle6=50\°[/tex]

Answer:

The correct answer is m<6 = 50°

Step-by-step explanation:

From the figure we can see that,

AB ║CD

To find the value of m<6

From figure we get, m<3  = 130°

m<6 = m<2 (corresponding angles)

m<3 + m<2 = 180°   (Linear pair)

m<2 = 180 - 130 = 50°

m<6 = m<2 = 50°

Therefore the correct answer is m<6 = 50°

a cylinder has a height of 6m and a cicumference of 10cm. What is the volume of the cylinder?​

Answers

Answer:

47.45 cm³

Step-by-step explanation:

Radius

= 10 ÷ 2π

= 5/π

Volume

= π(5/π)²(6)

= 150/π

= 47.45 cm³

Amanda saves $5 each week for 16 weeks. She spent 80% of her savings on a present for her mom. How much did her mom’s present cost?

Answers

Answer:

$64

Step-by-step explanation:

5 x 16 = $80

80% of $80 = $64

For which of the following is x=-5 a soulution? select all that apply​

Answers

Answer:

The answer are B and C

Step-by-step explanation:

-5² + 50 = 25

 |2 x 5| = 10

answer

everything but A so,

B C D E

PLEASE HELP ME with THIS please explain to Thank You and please

Answers

Step-by-step explanation: (for #1)

Area of a square= lw

A = 2 x 2

A = 4

Area of a triangle= 1/2bh

A = 1/2 1 x 2

A = 1

4 + 1 = 5in.

Step-by-step explanation: (for #2)

A = lw

A = 3 x 2

A = 6

Area = lw

A = lw

A = 1 x 1

A = 1

6 + 1 = 7cm

Here are the first five terms of a sequence:
4,11,22,37 and 56
Find an expression, in terms of n, for the nth term of this sequence.
Help ASAP please

Answers

Answer:

2n² + n + 1

Step-by-step explanation:

                               4, 11, 22, 37

Difference between:  7, 11, 15

7,11,15 are all 4 apart. You divide the 4 by 2 to get 2n² (it is squared because you needed a second level to find the difference)

And then I knew you needed to put the original 2n² with the sequence we are trying to work out.

                                                                 2, 8, 18, 32

                                                                 4, 11, 22, 37

difference between the 2 sequences   2, 3 ,4 ,5 (which all has a difference of 1)  which means 1n or just  n.

So that's 2n² + n

I

Final answer:

The sequence is quadratic as the second difference is constant. The nth term expression can be established as 2n² for which the coefficient 2 is half of the second difference. Further, by matching the sequence to the nth term, we adjust the expression to 2n² + n + 1.

Explanation:

A key step to finding an expression for the nth term of this sequence is finding the difference between consecutive terms. For this particular sequence, you can see that the difference isn’t constant, thus, it's a quadratic sequence. However, if the second difference is constant, the nth term of the sequence is a quadratic:

4, 11, 22, 37, 56

The first differences are: 7(11-4), 11(22-11), 15(37-22), 19(56-37).

The second differences are 4(11-7), 4(15-11), 4(19-15).

Since the second difference is constant and equals to 4. We divide this by 2 to get 2. This is the coefficient of the term in our sequence. Thus, the first part of the nth term is 2n².

The next step is to write out the sequence of 2n², subtract this sequence from the original sequence, and identify the differences:

Original sequence = 4, 11, 22, 37, 56Sequence of 2n² = 2, 8, 18, 32, 50Difference = 2, 3, 4, 5, 6

The difference above is clearly linear (increases by 1 each time) and thus the format for nth term has improved from 2n² to 2n²+n. So far this match has worked for the first 5 terms, but we need to look at the nth term to see if it works:

Original sequence: 4, 11, 22, 37, 56

Sequence of 2n²+n: 3, 10, 21, 36, 55

To match the original sequence, add 1 to each term in our sequence. The nth term is therefore 2n² + n + 1.

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Solve the system of equations by substitution. 2x + y = 3z x + y = 6z What is the value for y from the first equation, that could be substituted into the second equation?

Answers

Answer:

y = 3z - 2x

Step-by-step explanation:

Systems of equations can be solved by a number of know techniques, such as substitution, elimination or graphical approach.

We are required to solve the system of equations given via substitution;

2x + y = 3z

x + y = 6z

The question requires us to determine the value for y from the first equation, that could be substituted into the second equation.

We simply need to make y the subject of the formula from the first equation;

2x + y = 3z

To do this we subtract 2x on both sides of the equation;

2x + y -2x = 3z - 2x

y = 3z - 2x

This is the value of y from the first equation, that can be substituted into the second equation.

The triangles are similar.

What is the value of x ?

Answers

It an example of above you could tell your teacher that the value of 5x6 is 30 or the value of x+y if x = 6 and y = 3 is 9 . Which refers to a variable or constant

The equation would be set up like this

100 = 6x + 28

25 times 4 (the constant of proportionality) is how you get 100

100-28 is 72 6x +28 - 28 is 6x

new equation, 72 = 6x

So then you'd divide 72 by 6 and get 12

x=12

What is the perimeter of this red polygon?
Please Need Help Badly!!

Answers

Add all the side that is
22+27+22+98=169in

Answer:

338

Step-by-step explanation:

Tangents from an external point are equal. This can be used to find the perimeter

Perimeter = 22+22+22+22+27+27+98+98

= 338 in.

NOT 169.

How to work out the missing sides?

Answers

Answer:

5[tex]\sqrt{2}[/tex]

Step-by-step explanation:

The triangle has 2 equal legs, name them x so

Using Pythagoras' identity

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

x² + x² = 10²

2x² = 100 ( divide both sides by 2 )

x² = 50 ( take the square root of both sides )

x = [tex]\sqrt{50}[/tex] = [tex]\sqrt{25(2)}[/tex] = 5[tex]\sqrt{2}[/tex]

Nike shoes were originally $40 and is now marked up by 5% what is the price after the markup
42.50
42
43
44

Answers

Answer : 42

If the shoes were marked up by 5% then:

5 ÷ 100 × 40 = $2

Add the $2 to the $40 and you'll get:

$40 + 2 = $42

How does your sine graph change when including the c-value?

Answers

Answer:

Changing value of "c" changes the phase shift of the sine graph.

Step-by-step explanation:

Question says to find about how does the c value affect your sine graph.

General equation of sine function can be given as:

[tex]y=a\cdot\sin\left(bx-c)\right)+d[/tex]

In that formula, value of  "c/b" gives phase shift.

So changing value of "c" changes the phase shift of the sine graph.

What is the value of x? Round to the nearest hundredth.

Answers

Answer:

Step-by-step explanation:

You need to use trigonometry (SOHCAHTOA)

As from the focus angle -thetre- (65^o) you have the adjecent (x) and hypotenuse (the side opposite the right angle - 81.9m):

cos(θ) = adjacent/hypotenuse

cos (65) = x/81.9

as the opposite of dividing is mulitplying, you multiple both sides by 81.9

81.9*cos(65) = x

using calculator - in degree mode-

x = 34.6124

Thus it is the first choice, x = 34.61.

Answer:

The correct answer is first option

X = 34.61

Step-by-step explanation:

Points to remember

Trigonometric ratios

Sin θ  = Opposite side/Hypotenuse

Cos θ = Adjacent side/Hypotenuse

Tan θ = Opposite side/Adjacent side

From the figure we can see that a right angled triangle with base x and hypotenuse = 81.9.

One angle = 65°

To find the value of x

We have Cos θ = Adjacent side/Hypotenuse

Cos 65 = X/81.9

X = 81.9 * Cos 65

 = 81.9 * 0.4226  

 = 34.61

Therefore  X = 34.61

The correct answer is first option

find the zeros of the following polynomial p(x) = 3x³ + 9x² - 12x​

Answers

Answer:

x = - 4, x = 0, x = 1

Step-by-step explanation:

To find the zeros equate p(x) to zero, that is

3x³ + 9x² - 12x = 0 ← divide through by 3

x³ + 3x² - 4x = 0 ← factor out x from each term

x(x² + 3x - 4) = 0

x(x + 4)(x - 1) = 0 ← in factored form

Equate each factor to zero and solve for x

x = 0

x + 4 = 0 ⇒ x = - 4

x - 1 = 0 ⇒ x = 1

3. Please help me with this question

Answers

Answer:

14

Step-by-step explanation:

Multiply the exponents together

The area of a rectangle is 63 ft2. If the rectangle is 9 feet long. What is it’s width

Answers

Divide the area with the length ( 9 feet long)

Area: 63/9

= 7 feet long

7*9=63 ft 2

Answer: 7 feet long

7 feet.

The area of a rectangle is equal to its length times its height.

In this case, the area can be represented by 63 = 9 * w.

Divide both sides of the equation by 9 to get 7 = w.

This means the width is 7 feet.

(15 points)
Find the perimeter of each polygon. Assume that lines which appear to be tangent are tangent.

Answers

Thats exactly what i wanted to answer

Please please please help it’s due at 5 today and I don’t understand at all, I’ll give brainliest and 15 pts!!

Answers

Answer:

Surface Area of cylinder = 251.2 ft ^2

Step-by-step explanation:

The formula used to find the surface area of cylinder is:

Surface Area of Cylinder = 2πr²+ 2πrh

We are given: π = 3.14

r = 4 ft

h = 6 ft

Putting values:

Surface Area of Cylinder = 2πr²+ 2πrh

Surface Area of cylinder = 2* 3.14 * (4)^2 + 2*3.14*4*6

Surface Area of cylinder = 100.48 + 150.72

Surface Area of cylinder = 251.2 ft ^2

So, Surface Area of cylinder = 251.2 ft ^2

-n^2-14n=0
The solution for this equation

Answers

Answer:

n = 0, n = 14

Step-by-step explanation:

-n² - 14n = 0

Remove -n: -n(n - 14) = 0

Solve: -n = 0, n - 14 = 0

Solve: n = 0, n = 14

Answer:

n = 0, n = -14

Step-by-step explanation:

We are given the following equation an we are to solve it for the variable [tex] n [/tex]:

[tex] - n ^ 2 - 1 4 n = 0 [/tex]

Taking out the minus '-' as the common to get:

[tex] - ( n ^ 2 - 1 4 n ) = 0 [/tex]

[tex]n^2+14n=0[/tex]

[tex]n(n+14)=0[/tex]

[tex] n = 0 , n + 1 4 = 0 [/tex]

[tex] n = 0, n = -14 [/tex]

A tutor gives John 5 assignments and asks him to complete 5. How many possible combinations? Pls answer ASAP

Answers

Answer:

There is 1 possible combination

Step-by-step explanation:

There are 5 assignments and they must be completed. 5. We want to find the number of combinations, then we use the formula of combinations.

[tex]nCr =\frac{n!}{r!(n-r)!}[/tex]

Where n is the total number of objects and you choose r from them

Then

[tex]n= 5\\\\r = 5[/tex]

[tex]5C5 =\frac{5!}{5!(5-5)!}[/tex]

[tex]5C5 =\frac{5!}{5!(0)!}[/tex]

[tex]5C5 =\frac{5!}{5!}[/tex]

[tex]5C5 =1[/tex]

Jill collects stamps. Her stamp book has space for 64 stamps. She needs 18 more stamps to fill the book. How many stamps does Jill have now?

Answers

Answer:

46

Step-by-step explanation:

64 spaces. 18 empty

64 - 18 = 46

Final answer:

Jill currently has 46 stamps in her stamp book. For Jenny, the calculations show that if Lisa ended up with 6 chocolates, which is half of the remainder, then Jenny must have started with 14 chocolates initially.

Explanation:

To find out how many stamps Jill has now, we subtract the number of stamps she needs from the total capacity of the stamp book. If the stamp book has space for 64 stamps and Jill needs 18 more stamps to fill it, then:

Total stamp space in the book = 64

Stamps needed to fill the book = 18

Stamps Jill has now = Total stamp space - Stamps needed to fill the book

Stamps Jill has now = 64 - 18

Stamps Jill has now = 46 stamps

Therefore, Jill currently has 46 stamps in her stamp book.

Now, for Jenny's chocolates:

If Lisa has 6 chocolates, which is half of the remainder after Jenny ate two, we can calculate the original number of chocolates Jenny had. Since Lisa has 6, the remainder before Lisa received them was 12 (because 6 is half of 12). Therefore, if Jenny ate 2 chocolates before giving half to Lisa, she initially had:

Chocolates after eating 2 = 12 (remainder)

Chocolates before eating = 12 + 2

Chocolates Jenny had initially = 14

So, Jenny had 14 chocolates in the beginning, which is answer C. 14.

I need help for this math question ​

Answers

Answer:

63%

Step-by-step explanation:

The percentage of perfect attendance students can be represented by [tex]\frac{57}{190}[/tex]

Now we can simplify this and convert it to a percent.

[tex]\frac{57}{190} =0.3[/tex]

0.3 = 30%

Answer:

30%

Step-by-step explanation:

Find the volume of the cylinder.
Either enter an exact answer in terms of π or use 3.14 for π.

Answers

Volume of a cylinder = area of base x altitude.

[tex]\pi r^{2} h[/tex]

So, pi times radius squared times height.

3.14x[tex]r^{2}[/tex]x2

3.14x9x2

The answer is 56.52

Answer:

the answer is 18pi.

I hope this helps

Which BEST describes a ray?

Answers

Answer:

A portion of a line which starts at a point and goes off in a particular direction to infinity.

The best way to describe a ray.

Ray

A ray is known as a half-infinity line. As it starts from a point while the other end is pointing towards the direction till infinity.

As already discussed ray shows a direction as well, therefore, it is a vector quantity and is denoted by an arrow over the line name.

As shown below a ray can be drawn. therefore, [tex]\bold{\underset{AB}{\rightarrow}}[/tex] which is starting from point A and continuing toward the right side infinity.

Learn more about ray:

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Female giraffes reach a height of 4.3 meters, and males reach a height of 5.5 meters. Kendra created a bar diagram and wrote an equation to find the difference in the heights. bar diagram d - 5.5 = 4.3 Write about the errors made by Kendra

Answers

Answer:

The purpose of the the bar diagram is to show the difference between the heights of female and male giraffes, in other words, the bar diagram needs to be able to show how much one value is more or less than the other value.

The height of the males can reach 5.5 meters, and the females' height will only reach 4.3 meters, therefore, we can see that the height of the males are larger than the height of the females, so the equation to find the difference in the heights should be: 5.5 - d = 4.3 (or any other way around).

From that, we know that the height of the males is d meters more than the height of females or the height of the females is d meters less than the height of the males.

*hope this help you

Answer:

The numbers are in the wrong places in the diagram. 5.5m should be in the top bar diagram and 4.3 in the bottom. One equation could be 4.3 + d = 5.5.

Step-by-step explanation:

Sample response from Edgunity! Hope this helps, good luck on your assignment :)

Write the ratio 11 hours to 3 days in lowest terms.

Answers

Answer:

Step-by-step explanation:

11 hours: 3 days

11 hours: 72 hours

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