Determine the radius or diameter based upon the given dimensions. d = 20 cm

A rectangle has 4 right angles.

A rhombus does not have 4 right angles,

So, A rhombus is sometimes a rectangle

The variance of Billy's grades obtained from his test scores is 15.76

The variance is a measure of variability or spread a dataset. The variance can be calculated from the sum of the square of the differences of the data points from the mean divided by the number or count of the data points.

The variance of Billy's test scores can be calculated by finding the mean or the average of the scores, then finding the sum of the squares of the differences of each score from the mean as follows;

The mean score = (89 + 88 + 93 + 90 + 81)/5 = 88.2

The square of the differences of the values from the mean can be calculated as follows;

(89 - 88.2)² = 0.64, (88 - 88.2)² = 0.04, (93 - 88.2)² = 23.04, (90 - 88.2)² = 3.24, and (81 - 88.2)² = 51.84

The sum of the square of the differences is therefore;

0.64 + 0.04 + 23.04 + 3.24 + 51.84 = 78.8

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Answer:

2.8m²

Step-by-step explanation:

p = F / A

A = F / p

A = 84 / 30

A = 2.8m²

Answer:

x = - 1

Step-by-step explanation:

P = \(\frac{x-2}{x+1}\)

the denominator of the rational function cannot be zero as this would make it undefined. Equating the denominator to zero and solving gives the value that x cannot be.

x + 1 = 0 ( subtract 1 from both sides )

x = - 1

P is undefined when x = - 1

Answer:

\((4x+5)(x-3)\)

Step-by-step explanation:

We can separate this expression into two parts: \(4x^2-12x\) and \(5x-15\).

We can first take the first part and factor out 4x, getting \(4x(x-3)\).

We can then take the second part and factor out 5, getting \(5(x-3).\)

Now when we put these parts together, they make \(4x(x-3)+5(x-3)\\\).

The last step is to factor \((x-3)\) to get \((4x+5)(x-3)\).

The quadratic regression equation is y = 1.38x^2 - 5.77x + 0.96

From the question, we have the following parameters that can be used in our computation:

(-1,8), (5,-4), (7,8), (2,-6)

Using a graphing calculator, we have the following summary:

function value

mean of x 3.25

mean of y 1.5

correlation coefficient r 0.9990171837

A 1.380577428

B -5.769028871

C 0.9553805774

The equation is represented as

y = ax^2 + bx + c

So,, we habe

y = 1.38x^2 - 5.77x + 0.96

Hence, the equation is y = 1.38x^2 - 5.77x + 0.96

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1110800. Equity Account will be after stock dividends

Similar to a cash dividend, however instead of cash, stocks are given out. A stock dividend will increase the number of shares outstanding while lowering the stock price.

In this issue, there are 460000 shares outstanding at a price of $30, which equals 13800000

Equity's total market value is $13800000.

Each shareholder will get a 20% increase in stock, and the number of existing shares will increase as a result of the 20% stock dividend.

Shares outstanding after dividend announcement total 460000 + 46000 ×20% =552000.

The number of outstanding common shares will rise to 552000 as a result of the issuance of 92000 more shares.

Common stock only contains the par value; for example, if the market price of a share is $30 and the par value is $1, the excess amount of $29×92000:2668000 is added to the capital surplus account. It will total 861000 + 2668000=3529000.

Due to the absence of any monetary transactions, the total owners' equity is unaltered.

The retained earnings will be decreased by 92000 × 30 = 2760000, resulting in 3870800 – 2760000=1110800.

Equity Account will be after stock dividends.

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Answer:

it's potential energy decreases

Answer:

He had 543.333...$

Step-by-step explanation:

200$ + 126$ = 3/5

2/5= ?$

3/5 = 60%/100%

326$ divided by 60 = 1%

1% x 100 = 100%

326 divided by 60 = 5.4333...

5.433... x 100 = 543.333...

So, 100% = 543.333...

Answer:

E: 7 1/20

Step-by-step explanation:

the greater the denominator the smaller the fraction so 1/20 is smaller than 1/4

Answer:

The coefficients are 4 and 2

Step-by-step explanation:

they are the ones in front of the variables

for example, the coefficient of 12x is 12

anyways, stan tokoroki for clear skin

Answer:

Step-by-step explanation:

You want to know if David's solution of -2x for (5x-4) -(3x) is correct, and what David should have done.

David's solution is correct up to Step 4.

At that point, it appears as though David treated -4 as if it were -4x. The constant cannot be combined with x terms. Step 4 should have been ...

  Step 4: (5 -3)x -4 = 2x -4

David's incorrect solution should have been 2x -4.

Answer:

48

Step-by-step explanation:

12 x 4 = ?

Can I get a crown?

Answer:

204768

Step-by-step explanation:

You just need to multiply 3762 with 54

Answer:

b is right (simulation)

Step-by-step explanation:

edg

The method of data collection used is the simulation method

A number cube (also known as a die) is a device that is used in simulating probabilities

Below is how to determine the method she used.

From the question, we have the following highlights:

The highlight 3 above implies that the method of data collection used in this question is the simulation method

This is so because the winning team is determined by rolling a number cube

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Answer: It is B/Spinner 2

y = x - 4 is  the equation of the line in slope-intercept form.

How do you interpret a slope-intercept form?

The data provided by that form can be used to graph a linear equation in slope-intercept form. As an illustration, the equation y=2x+3 indicates that the line's slope is 2 and that its y-intercept is located at (0,3). This reveals the single point at which the line passes as well as the direction in which we should draw the full line after that.

Point from graph = (2, -2 )

                slope (m) = y/x

                                = -2/2

                                = 1

slope-intercept form ⇒ y = mx + c    

                                        -2 = 1 * 2 + c

                                          - 2 = 2 + c

                                               c = -4

 slope-intercept form ⇒ y = x - 4

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Answer:

2 1/2

Step-by-step explanation:

To solve this, we subtract 1 7/8 from 4 3/8 because Kyle "gives" away his candy. The answer to this is 2 1/2.

Answer:

2.5 OR 3 1/2

Step-by-step explanation:

Well we can just do

4 and 3.8 minus 1 and 7/8

like how you would do on real problems

Do the same thing to fractions instead

Hope this helps! Im a real math expert

Tell me if anymore questions!

Answer:

what we have to find or to prove.

An image of triangle NOG after a rotation 90° clockwise about the origin is shown below.

In Mathematics and Geometry, a rotation is a type of transformation which moves every point of the object through a number of degrees around a given point, which can either be clockwise or counterclockwise (anticlockwise) direction.

Next, we would apply a rotation of 90° clockwise about the origin to the coordinate of this triangle NOG in order to determine the coordinate of its image;

(x, y)                →            (y, -x)

Point N = (-4, -1)          →     Point N' (-1, 4)

Point O = (-4, -3)          →     Point O' (-3, 4)

Point G = (0, -1)          →     Point G' (-1, 0)

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1) Gathering the data

Area: 10 ft²

Actual: 10.6 ft²

2) To find the percent error, let's divide the estimated error by the actual area, in this case:

3.) So the percent error was 0.94 we then multiply by 100: We have the error.

Zach's percent error was 94%

Answer:

\(37 - c = x\)

Step-by-step explanation:

We'll use c to represent the amount taken away (subtracted) and x to represent the amount left (the answer).

We begin with 37 balloon, and take away c amount to make x.

37 - c = x

Using the coordinate geometry formula, the exact area of triangle DEF is: B. 18 square units.

The coordinate geometry formula is used to find the rea of a triangle with given coordinates of its vertices. It is given as: the absolute value of [Dx(Ey - Fy) + Ex(Fy - Dy) + Fx(Dy - Ey)]/2.

Dx = -3

Dy = 4

Ex = 3

Ey =-2

Fx = 3

Fy = 4

Plug in the values:

[-3(-2 - 4) + 3(4 - 4) + 3(4 - (-2))]/2.

[-3(-6) + 3(0) + 3(6)]/2.

[18 + 0 + 18]/2.

36/2

= 18 units²

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Answer:

The leftmost graph [with the points (-3,-3) and (0,3)]

Step-by-step explanation:

y+3=2(x+3)

y+3=2x+6

y=2x+3

The y-intercept is 3, meaning that the line passes through the point (0,3), and it's slope is 2, so it travels 2 units up and 1 unit over. Thus the correct graph is the top left graph, with the two points (-3,-3) and (0,3).

Hope this helps! (:

Answer:

Step-by-step explanation:

Diameter = 84 km

Radius = 84/2 = 42 km

Area of circle = πr²

                      = 3.14 * 42 * 42

                      = 5538.96 km²

Answer: 471 years old

Step-by-step explanation:

1946-1475= 471

Answer: 4/5 or 0.8

Step-by-step explanation:

\(1\frac{1}{4}\) * \(\frac{4}{5}\) = \(\frac{1}{1}\) = 1

\(1\frac{1}{4}\) is also equal to 1.25.

1.25 * 0.8 = 1

Answer:

4/5

Step-by-step explanation:

because 4 is half of a half two fourths are a half and 4/4 are 1 whole