Is Br2 equal to Avogadro's number?

Answer:

153.94 cm²

Step-by-step explanation:

Area of circle = πr² = π(7)² = 49π = 153.94 cm²

Answer:

7^2 = 49

49 x 3.14 = 153.86

Step-by-step explanation:

Formula of an Area of a circle:

pi(3.14 or 22/7 or whatever they tell you to use for pi) x radius squared

Answer:

4/8  if you need simplified version its 1/2

Step-by-step explanation:

A coin has 2 sides. If you flip a coin one time, the possibility of getting a tails would be 1/2.

times 1/2 by 4 (since your flipping it four times)

Answer:

[tex]C=59.6902604182[/tex]

Step-by-step explanation:

The formula to calculate the circumference of a circle given the diameter is:

[tex]C=\pi d[/tex]

Substitute and solve:

[tex]C=\pi \times19=59.6902604182[/tex]
[tex]C=59.6902604182[/tex]

Since the question doesn't say to round your answer is "59.6902604182."

Hope this helps.

According to probability, if both families want to sit together, they can be seated in a row a maximum of two times.

The direction that each person is facing is crucial when arranging the people.

In order to determine how many ways they can be seated in a row if both families want to sit together, imagine that two families with four members each attend a movie theatre.

Given that the arrangement is important, we will apply the permutation rule. We'll divide the remaining four into two groups of four each.

There are two different ways to arrange the groups so they can sit together.

2! = 2 * 1

2! = 2ways

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Answer:

hope this helps you pls give me brainless.

The sum of length of the parallel sides of a trapezium exists 300 cm.

A trapezoid, which is often referred to as a trapezium, is a flat, closed object with four straight sides and one set of parallel sides. A trapezium's parallel bases and non-parallel legs are referred to as its bases and legs, respectively. Also possible are parallel legs on a trapezium.

Four sides, four corners/vertices, and four angles make up a trapezium, which is a closed shape or polygon. A trapezium has parallel sides on each of its opposing angles.

One set of the sides of a trapezium is parallel only. Since no trapezium is a rectangle, they are not all the same.

Area of trapezium = (a + b)/2 × h

where h is the perpendicular height, and a and b are parallel sides.

So, (a + b) exists sum of length of bases of a trapezium.

Let the equation be

Area of trapezium = (a + b)/2 × h

substitute the values in the above equation, we get

⇒  4.2 × 100² = (a + b) / 2 × 280 {1 m = 100 cm}

simplifying the equation, we get

⇒ (84/280) × 10000 = a + b

⇒ a + b = 300 cm

Therefore, the sum of length of the parallel sides of a trapezium exists 300 cm.

The complete question is:

Find the sum of length of the parallel sides of a trapezium whose area is 4.2 m² and whose height is 280 cm.

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The sum of length of the parallel sides of a trapezium exists 300 cm.

A trapezoid, also known as a trapezium, is a closed, flat object with one pair of parallel sides and four straight sides. The parallel bases and the non-parallel legs of a trapezium are called the bases and the legs, respectively. A trapezium with parallel legs is another option.

A trapezium is a closed shape or polygon with four sides, four corners, and four angles. Each of the opposing sides of a trapezium has parallel sides.

A trapezium has only one set of parallel sides. They are not all the same since no trapezium is a rectangle.

Area of trapezium = (a + b)/2 × h

where h is the perpendicular height, and a and b are parallel sides.

So, (a + b) exists sum of length of bases of a trapezium.

Let the equation be

Area of trapezium = (a + b)/2 × h

substitute the values in the above equation, we get

⇒  4.2 × 100² = (a + b) / 2 × 280 {1 m = 100 cm}

simplifying the equation, we get

⇒ (84/280) × 10000 = a + b

⇒ a + b = 300 cm

Therefore, the sum of length of the parallel sides of a trapezium exists 300 cm.

The complete question is:

Find the sum of length of the parallel sides of a trapezium whose area is 4.2 m² and whose height is 280 cm.

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Answer:

the answer is 28

Step-by-step explanation:

Maeda scored 24 points and if 4 less then jill

x is variable

x-4=24 add 4 on both sides

x=28

Answer:

x = - √2/2

Step-by-step explanation:

We know that x = rcosθ and y = rsinθ. The unit circle always have radius of 1 unit. Therefore, r = 1 as defined. Hence:

x = cosθ, y = sinθ

x = cosθ, θ = arcsin(y)

x = cos{arcsin(-√2/2)}

Find the measurement or θ that makes sinθ = -√2/2 and that is π + π/4 = 5π/4.

x = cos(5π/4)

And cos(5π/4) = - √2/2 as well. Hence, x = - √2/2.

Rafael claims it's easiest to score points when a scatterplot has a linear association. Sahana says it's easiest when a scatterplot has a strong association. Both Rafael and Sahana are correct, in their own way.

A scatterplot with a linear association means that there is a straight line relationship between the two variables being plotted. In such a scatterplot, it is relatively easy to make predictions based on the line of best fit, as well as to calculate the correlation coefficient(r), which can indicate the strength and direction of the linear relationship.

On the other hand, a scatterplot with a strong association means that the points in the plot are closely grouped together, indicating a high degree of correlation between the variables. It is relatively easy to make predictions based on the overall pattern of the points in the scatterplot, even if there is no clear linear relationship.

So, Rafael is correct that scoring points is easiest when a scatterplot has a linear association because it is relatively easy to make predictions based on the line of best fit and correlation coefficient. And Sahana is correct that scoring points is easiest when a scatterplot has a strong association because it is relatively easy to make predictions based on the overall pattern of the points in the scatterplot.

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Answer:

negitive corralation

Step-by-step explanation:

The outside temperature and the number of layers you wear.​ represents a negative correlation.

It is defined as the relation between two variables which is a quantitative type and gives an idea about the direction of these two variables.

As we know a negative correlation is a relationship between two variables in which one increases while the other decreases and a positive correlation is a relationship in which one variable increases while the other decreases.

The case of the two variables that are outside temperature and the number of layers you wear represents the negative correlation because in the summer temperature increases and the number of layers decreases that you wear.

In the winter when the temperature goes down the number of layers increases that you wear.

Thus, the outside temperature and the number of layers you wear.​ represents a negative correlation.

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Answer:

[tex]R=883.74N[/tex]

Step-by-step explanation:

From the question we are told that:

Force 1 [tex]F_1=226N[/tex]

Force 2 [tex]F_2=331N[/tex]

Force 3 [tex]F_3=377N[/tex]

Direction 1  [tex]\theta_1=145 degrees \approx 35 \textdegree (2nd qudrant)[/tex]

Direction 2 [tex]\theta_2=303 degrees \approx 57 \textdegree (3rd qudrant)[/tex]

Direction 3 [tex]\theta_3=77 degrees[/tex]

Generally Resolving forces to X axis is mathematically given by

 [tex]\sum f_x=337cos77+331cos57+226sin35[/tex]

 [tex]\sum f_x=351.596N[/tex]

Generally Resolving forces to Y axis is mathematically given by

 [tex]\sum f_y=337sin77+331sin57+226cos35[/tex]

 [tex]\sum f_x=810.788N[/tex]

Generally the equation for Resultant force R is mathematically given by

 [tex]R=\sqrt{\sum f_x^2+\sum f_x^2}[/tex]

 [tex]R=\sqrt{351.596^2+810.788^2}[/tex]

 [tex]R=883.74N[/tex]

An equation representing this situation where Tommy earned $225 washing cars per appointment charge of $30 and tips of $45 while paying $10 for water per appointment is D. (30 - 10)y + 45 = 225.

An equation is a mathematical statement that states that two or more mathematical expressions are equivalent or equal.

Equations depict the equality of mathematical expressions using the equation symbol (=).

The total amount earned = $225

Variable charge per appointment = $30

Tips earned = $45

Variable cost per appointment for water = $10

Contribution margin per unit = $20 ($30 - $10)

Let each appointment = y

Total earnings: 225 = (30 - 10y) + 45

Thus, the equation that represents the situation of Tommy's net earnings from washing cars is Option D.

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Answer:

607.32

Step-by-step explanation:

two semi circles make a whole circle so use the normal circumfrence formula 2 pi r

circumfrence = 433.32

the perimeter of the rectangle is 87 + 87, because they are on the outside of the field.

The answer is 607.32

The monthly payment for this difference would be $1,361.21. An Adjustable Rate Mortgage (ARM) is a type of mortgage in which the interest rate on the loan changes over time.

An Adjustable Rate Mortgage (ARM) payment is based on various factors such as the loan amount, interest rate, and the terms of the ARM. The interest rate is usually tied to a specific financial index, such as the U.S.

Here is the calculation format for the difference in payments between year 2 and year 3 for Bart and April's mortgage:

Total amount to be paid for the mortgage: $315,000

Rate of interest: 5.85% (Depreciating rate)

Time = 2 years:

a. Remaining amount to be paid after 2 years:

Principal × (1 - Rate/100)^time

= $315,000 × (1 - 5.85/100)²

= $315,000 × (1 - 0.0585)²

= $279,223.01

Time = 3 years:

a. Remaining amount to be paid after 3 years:

Principal × (1 - Rate/100)^time

= $315,000 × (1 - 5.85/100)³

= $315,000 × (1 - 0.0585)³

= $262,888.46

Difference in payments from year 2 to year 3:

= Remaining amount after 2 years - Remaining amount after 3 years

= $279,223.01 - $262,888.46

= $16,334.55

The monthly payment for this difference would be $1,361.21, which is calculated by dividing the difference in payments by 12:

$16334.546/12 = $1361.21

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Answer:

Step-by-step explanation:

F TV day job cut hv h the BBC gg was the only time I had a chance of playing it for the last night of my life lol I love you and you are ok with your such good friends I know I love it but it’s ok I’m not sure how to get it away I don’t think you can get me to type in the car.

Answer:

y=-1/2x+16

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(8-10)/(16-12)

m=-2/4

m=-1/2

y-y1=m(x-x1)

y-10=-1/2(x-12)

y=-1/2x+12/2+10

y=-1/2x+6+10

y=-1/2x+16

On solving the provided question, we can say that the slope's the intersection points are: (20.698, 42.197) and (43.998,16.527), the transmitter is within range between those to points along the line.

A line's slope determines how steep it is. A mathematical equation for the gradient is called "gradient overflow" (the change in y divided by the change in x). The slope is the ratio of the vertical change (rise) between two points to the horizontal change (run) between those same two spots. When a straight line's equation is written as y = mx + b, the slope-intercept form of an equation is employed to express it. The y-intercept is located at a location where the line's slope is m, b is b, and (0, b). For instance, the slope of the equation y = 3x - 7 and the y-intercept (0, 7).The line's slope is m. b is b at the point where the y-intercept is, and (0, b). As an illustration, the equation y = 3x - 7 has a slope of 3, and its y-intercept is (0, 7).

city - north at (0,65)

city-east at (59,0)

Slope is m=(-65/59)

[tex]B= y - mx = 65 - (-65/59)(0) = 65[/tex]

The equation of the line between the cities is y = (-65/59)x + 65

[tex]x^2 + ( (-65/50)x + 65) )^2 = 47^2[/tex]

the intersection points are:

(20.698, 42.197) and (43.998,16.527)

The transmitter is within range between those to points along the line.

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Answer:

602

Step-by-step explanation:

First find area of the rectangle portion

L x W

22 x 15

330

Second find area of trapezoid

B1+B2/2 times height

12+22/2 times 16

34/2 times 16

17 times 16

272

Lastly, add areas together

Answer: A

Step-by-step explanation:

Answer:

[tex]G(T(x)) = 27(x + 6.9)[/tex]

Step-by-step explanation:

Given

[tex]T(x) = 9(x + 6.9)[/tex]

[tex]G(x) = 3x[/tex]

Required [Missing from the question]

G(T(x))

We have:

[tex]G(x) = 3x[/tex]

This implies that:

[tex]G(T(x)) = 3(T(x))[/tex]

Substitute: [tex]T(x) = 9(x + 6.9)[/tex]

[tex]G(T(x)) = 3[9(x + 6.9)][/tex]

Open bracket

[tex]G(T(x)) = 27(x + 6.9)[/tex]

Answer:

I agree with Helen because she is right that the volume is about 175 cubic inch. and it is a triangular prism.

Step-by-step explanation:

helen is swaggy so i must agree with her

what other reason is there not to agree?

The sum of the two polynomials 6s²t – 2st² and  4s²t – 3st² is 5(2s²t – st²) in factorized from.

One or more algebraic terms (monomials) are combined mathematically to form a polynomial. Poly- (many) and -nomial (terms) are the roots of the word "polynomial".

A polynomial can have exponents (powers), constants (numbers), and variables (letters), but never negative exponents or division by a variable.

In standard form, polynomials prefer to be expressed. In addition, the exponents are arranged in descending order because they don't contain any similar terms (largest to smallest).

The sum of two polynomial is

⇒6s²t – 2st² + 4s²t – 3st²

= 6s²t + 4s²t – 3st²– 2st²

= 10s²t – 5st²

= 5(2s²t – st²)

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Full question

What is true about the sum of the two polynomials?

6s²t – 2st² and  4s²t – 3st²

Real numbers are every  number that exists in the real line, The four types of real numbers are rational, irrational, Natural and Integers.

In mathematics, a real number is a value that can be represented on the number line. The set of real numbers includes both rational numbers (such as integers, fractions, and decimals) and irrational numbers (such as √2 and π). Real numbers also include positive numbers, negative numbers, and zero. The set of real numbers is usually represented by the symbol R, and it has the properties of being closed under the operations of addition, subtraction, multiplication, and division (except for division by zero).

In mathematics, an ideal solution refers to a solution that meets all the desired criteria or requirements without any constraints. It is the "best case" scenario. A real solution, on the other hand, refers to a solution that takes into account all the limitations and constraints of a problem. It is a more practical and realistic solution.

Rational number = 3/4, -6/2, or 0.5.

Irrational number = √2, π, or e.

Natural number = 1,2,3,4....

Integers = -4, -1, 0, 1, 4.

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Answer:

Step-by-step explanation:

Total amount of money earned is x.

Answer:

Solution given

tax = 4.5%

Amount of tax = $46

Let total amount of money earned is x.

we have

4.5% of x = $46

x×4.5/100 = 46

x×0.045 =46

x = 46/0.045

x= 1022.22

So Racheal earn $ 1022.22.

Answer:

11.75

Step-by-step explanation:

The quilt consists of a square array of 8 x 8 = <<8*8=64>>64 square pieces of fabric.

Since the length of the total quilt is 7.52 feet, the side length of each square piece of fabric is 7.52 / 8 = <<752/8=0.94>>0.94 feet.

However, since you are asked to enter your answer in the box in feet, you should express 0.94 feet as a decimal to the nearest hundredth. The nearest hundredth of a foot to 0.94 feet is 0.95 feet. Therefore, the side length of each square piece of fabric is approximately 0.95 feet, or approximately 11.75 inches.

So the answer is 11.75 feet.

Answer:

The TV is 64.3 in. wide.

Step-by-step explanation:

a  

2

+(63)  

2

=

\,\,90^{2}

90  

2

Use the Pythagorean Theorem.

a^{2}+3969=

a  

2

+3969=

\,\,8100

8100

Simplify.

-3969\phantom{=}

−3969=

\,\,-3969

−3969

Subtract 3969 from both sides.

a^{2}=

a  

2

=

\,\,4131

4131

\sqrt{a^{2}}=

a  

2

​  

=

\,\,\pm\sqrt{4131}

±  

4131

​  

Square root both sides.

a=

a=

\,\,64.272855...

64.272855...

Simplify. Ignore negative root, as length must be positive.

a\approx

a≈

\,\,64.3

64.3

Round to the nearest tenth.

The rectangle TV's width is determined by the formula W = 64.3 inches.

The formula determines a rectangle's diagonal.

From the Pythagoras Theorem , The hypotenuse² = base² + height² , and

Diagonal of a Rectangle = √ ( Length )² + ( Width )²

Given data ,

Let D represent the diagonal of the rectangular TV.

D is now equal to 90 inches.

Let the TV's rectangle size be 63 inches.

Let W be the TV's rectangular width.

And , Diagonal of a Rectangle = √ ( Length )² + ( Width )²

D² = L² + W²

90² = 63² + W²

Subtracting 63² on both sides of the equation , we get

W² = 90² - 63²

On simplifying the equation , we get

W² = 4131

Taking square roots , we get

W = √4131 inches

W = 64.3 inches

Thus , W is equal to 64.3 inches.

Hence, the rectangular TV is 64.3 inches wide.

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Answer:

  23.5 cm

Step-by-step explanation:

You want the height of the model of a 94 m tall roller coaster when the model scale is 1 cm = 4 m.

The model dimensions are assumed to be proportional to the real-world dimensions, so the model height h will satisfy the proportion ...

  h/(94 m) = (1 cm)/(4 m)

Multiplying by 94 m gives ...

  h = (1 cm)(94/4) = 23.5 cm

The height of the model is 23.5 cm.

Answer:

5

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

90x5=450

548-450=98

98divede12=8..2

Answer: is 14

Step-by-step explanation: its 14 but i dont know how to explain it