a rectangular porch has dimentions of (x+12) and (x+5) feet. If thr aria of the porch floor is 120 square feet, what is its length and width?

An ellipse is a curved shape characterized by two foci and a major axis, with every point on the ellipse being at a constant sum of distances from the foci. The eccentricity, which is the ratio of the distance between the foci to the length of the major axis, determines the 'roundness' of the ellipse. The ellipse can be constructed using the gardener's method to showcase this constant sum property.

An ellipse is a specific type of curve that is noticeably different from a circle in that it is elongated; it has two distinct foci instead of a single central point and a major axis that defines its longest diameter. The foci are two fixed points located within the ellipse such that the sum of the distances from any point on the ellipse to the two foci is constant. This consistent sum of distances is what gives an ellipse its characteristic shape. This property is often demonstrated by the 'gardener's method' of creating an ellipse by anchoring a string to two fixed points (the foci) and tracing a path with a marker keeping the string taut.

The eccentricity of an ellipse, which determines its 'roundness,' is the ratio of the distance between the two foci to the length of the major axis. If the foci are close together relative to the major axis, the ellipse will appear more circular; if they are further apart, the ellipse will be more stretched out. The major axis (2a) cuts the ellipse into two equal halves, and each half is referred to as the semimajor axis (a).

A crucial aspect of drawing an ellipse involves identifying the length of the major axis and the location of the two foci. Because these elements are so fundamental, an ellipse can be readily illustrated by the use of string and a couple of tacks representing the foci.

The expression equal to the rational expression is 3/(x + 6)

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

3(x + 2)/(x + 6)(x + 2)

Divide the fraction by x + 2

So, we have

3(x + 2)/(x + 6)(x + 2) = 3/(x + 6)

Hence, the value of the rational expression is 3/(x + 6)

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Answer:

80° and 100 °

Step-by-step explanation:

The total of the two angles is 180°, and one angle is 20° smaller than the other, so the equation would be x+x-20°=180°, then all you need to do is find x, and x-20°.

DONT FORGET TO WRITE THE DEGREE SYMBOL OR IT WILL BE COUNTED AS INCORRECT!!!

-Char-

11/18 probability

90 apartments total

35/90=

11/18

Answer:

Thanks

Step-by-step explanation:

This person is correct peeps :DD

The experimental probability of rolling a 2 or a 3 would be 0.22

Probability refers to a possibility that deals with the occurrence of random events. The probability of all the events occurring need to be 1.

We are given that number cube is rolled 360 times , and the results are recorded as follows : 96 ones , 31 twos , 49 threes , 76 fours , 45 fives , and 63 sixes .

Total number of times rolled = 360

Total number of 2s and 3s = 31 + 49 = 80

P(2 or 3) = 80/360 = 2/9

P(2 or 3) = 0.22 (nearest hundredth)

The answer is: 0.22

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Answer:

[tex]B=3[/tex]

Step-by-step explanation:

We have been given an expression [tex]12x^4+30x^3+4x^2+10x[/tex].

Let us factor our given expression to answer the given problem.

Factor out [tex]2x[/tex] from all terms:

[tex]2x(6x^3+15x^2+2x+5)[/tex]

Now, we will make two groups of [tex]6x^3+15x^2+2x+5[/tex] as shown below:

[tex]2x((6x^3+15x^2)+(2x+5))[/tex]

[tex]2x((6x^3+15x^2)+(2x+5))[/tex]

Factor out [tex]3x^2[/tex] from 1st group:

[tex]2x((3x^2(2x+5))+(2x+5))[/tex]

[tex]2x(3x^2+1)(2x+5)[/tex]

Upon comparing [tex]2x(3x^2+1)(2x+5)[/tex] with [tex]Ax(Bx^2+1)(2x+5)[/tex], we can see that [tex]A=2[/tex] and [tex]B=3[/tex].

Therefore, the value of B is 3.

Answer:

[tex]d = \sqrt{65}\text{ units}[/tex]

Step-by-step explanation:

Let [tex](x_1,x_2)[/tex] and [tex](y_1, y_2)[/tex] be the two points.

We have to find the distance between the two points.

The distance Formula:

[tex]d = \sqrt{(x_1 - y_1)^2 + (x_2 - y_2)^2}[/tex]

Here, we are given [tex](x_1,x_2)[/tex] = (5,1) and  [tex](y_1, y_2)[/tex]  = (9,-6)

Then, the distance between these two points is given by:

[tex]d = \sqrt{(5 - 9)^2 + (1- (-6))^2}[/tex]

[tex]d = \sqrt{(-4)^2 + (7)^2}[/tex]

[tex]d = \sqrt{16 + 49}[/tex]

[tex]d = \sqrt{65}[/tex]

Thus, the distance between the given point is [tex]\sqrt{65}\text{ units}[/tex].

Final answer:

Email was invented 26 years after the completion of the first recognized computer in 1945.

Explanation:

The first computer is often attributed to the work carried out during World War II, with machines like ENIAC, completed in 1945, incorporating vacuum tubes and filling entire rooms. However, the question references a machine called ROACH, which seems to be a typo or a misunderstanding; we usually refer to ENIAC as one of the first computers. Email, on the other hand, was invented in 1971 by Ray Tomlinson. Calculating the difference between the years when the first computer was completed and when email was invented gives us the number of years it took for email to be developed after the advent of the computer.

To find this, we subtract the year the first computer was completed, 1945, from the year email was invented, 1971:

Email was invented 26 years after the completion of the first computer.

The system of equations has a solution at (9, 7), which is an option (b).

Simultaneous equations, a system of equations Two or more equations in algebra must be solved jointly (i.e., the solution must satisfy all the equations in the system). The number of equations must match the number of unknowns for a system to have a singular solution.

There are four methods for solving systems of equations: graphing, substitution, elimination, and matrices.

The given equations are:

3x-3y=6

6x-7y=5

Multiply the first equation by 2 to get rid of the coefficient of x in the second equation:

6x - 6y = 12

6x - 7y = 5

Subtract the first equation from the second equation to eliminate x:

0x - y = -7

y = 7

Substitute y = 7 into one of the original equations and solve for x:

3x - 3y = 6

3x - 3(7) = 6

3x - 21 = 6

3x = 27

x = 9

Therefore, the solution to the system of equations is (9, 7), which corresponds to option (b).

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The area of the second garden is 96 square feet.

Let's denote the length of the second garden as l (since it's half the length of the first garden) and the width of the second garden as w.

Given:

Length of the first garden [tex](\(L_1\))[/tex]= 8 feet

Width of the first garden [tex](\(W_1\))[/tex] = 6 feet

Length of the second garden [tex](\(l\)) = \(L_1/2\) = \(8/2 = 4\)[/tex]  feet

Area of the first garden [tex](\(A_1\)) = \(L_1 \times W_1\) = \(8 \times 6 = 48\)[/tex] square feet

We are given that the area of the second garden [tex](\(A_2\))[/tex] is twice the area of the first garden:

[tex]\[A_2 = 2 \times A_1 = 2 \times 48 = 96\][/tex] square feet

The probability of randomly picking a cracked white egg from a basket of white and brown eggs is calculated by dividing the number of cracked white eggs (half of the total white eggs) by the total number of eggs. However, specific numbers for the number of white and brown eggs are needed for an exact answer.

In order to answer this question, we need to know the number of white eggs and brown eggs in the basket. However, assuming that there are 'w' white eggs and 'b' brown eggs in the basket, and half of the white eggs are cracked, the probability of randomly picking a cracked white egg would be calculated by dividing the number of cracked white eggs by the total number of eggs. Therefore, if 'w' over 2 represents cracked white eggs, the probability would be (w/2) / (w + b).

For example, if the basket had 10 white eggs and 20 brown eggs, and half the white eggs are cracked. There would be 5 cracked white eggs. Hence, the probability of picking a cracked white egg would be calculated as: (5 / (10 + 20)), which equals to 1/6.

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Surface area is the area you get from a shape's net.

A net is an unfolded 3rd shape.

To find the surface area you use the equation A = 2xπrh + 2πr²

The answer would be 659.73 cm²

Hope this helps have a wonderful day!