The lengths of three sides of a quadrilateral are shown below: Side 1: 1y2 + 3y − 6 Side 2: 4y − 7 + 2y2 Side 3: 3y2 − 8 + 5y The perimeter of the quadrilateral is 8y3 − 2y2 + 4y − 26. Part A: What is the total length of sides 1, 2, and 3 of the quadrilateral? (4 points) Part B: What is the length of the fourth side of the quadrilateral? (4 points) Part C: Do the answers for Part A and Part B show that the polynomials are closed under addition and subtraction? Justify your answer.

answer is 2x+3, x not equal to 6

 see attached pic for steps

Answer:

2x + 3, x ≠ 6

Step-by-step explanation:

Answer:

[tex]A=\frac{1}{2}Pa[/tex]

Step-by-step explanation:

Let

P------> the perimeter of a regular polygon

a-----> the apothen

A-----> the area of a regular polygon

we know that

The formula to calculate the area of a regular polygon is equal to

[tex]A=\frac{1}{2}Pa[/tex]

The formula for finding the area of a regular polygon with

perimeter P and apothem length a is 1/2Pa.

This is referred to as a plane figure which has a finite number of

straight line segments connected to form a closed polygonal

chain.

The formula for calculating the area of a regular polygon is

1/2Pa where P is the perimeter of a regular polygon and a is the

apothem.

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Final answer:

The determinant of the given 3x3 matrix [1 4 4 5 2 2 1 5 5] is calculated by expanding across the first row and is found to be -60.

Explanation:

To evaluate the determinant of a 3x3 matrix, you can use the method of expansion across any row or any column. Given the matrix [1 4 4 5 2 2 1 5 5], let's expand across the first row:

The determinant of the matrix is the sum of the products of each element in the chosen row or column and the determinant of the 2x2 matrix that remains after removing the row and column of that element.

Multiply the first element of the first row by the determinant of the remaining 2x2 matrix, then subtract the product of the second element and its associated 2x2 matrix, and add the product of the third element and its 2x2 matrix.

Calculating the values, we get: 1*(2*5 - 2*5) - 4*(5*5 - 2*1) + 4*(5*2 - 2*1) = 1*0 - 4*23 + 4*8 = 0 - 92 + 32.

Therefore, the determinant of the given matrix is -60.

Final answer:

For each kilometer increase in altitude, the temperature on the distant planet decreases by 235 degrees Celsius, according to the given equation y = -235x.

Explanation:

The question pertains to the relationship between altitude and temperature on a distant planet. Given the equation y = -235x, where y represents the temperature in degrees Celsius and x represents the height above the surface in kilometers, we are asked to determine the temperature change for each kilometer as we increase elevation from the surface.

To find the temperature change per kilometer, we examine the coefficient of x in the equation. Since the coefficient is -235, it signifies that for every kilometer increase in altitude, the temperature on this planet decreases by 235 degrees Celsius.

The number 256,000 can be written as 2.56 x [tex]10^5[/tex]  in scientific notation

The number is written in the form [tex]a \times 10^b[/tex]

The number b shows the order, which is the most important figure for which scientific notation is used. It tells us how much order large or small a value is in powers of 10. We can for a time, ignore the value of 'a' for two comparable quantities and only compare their orders(this type of comparison is useful when difference is too big, like size of human to size of a star etc sort of comparisons).

Scientific notations value in terms of power of 10 is known, which helps in easy comparison of quantities differing by a large value.

To write 256,000 in scientific notation.

[tex]10^5[/tex] is followed by 5 zeros, so, it is 100,000.

Now Multiply 2.56 and 100,000 we get

2.56 x 100,000 = 256,000.

Therefore, First box is 100,000 and the second box is 5

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the answer is 8.8

that is the answer

Answer:

A. x = two over three and x = -5

The equation 3x^2 + 13x = 10 can be solved using the quadratic formula. The solutions are given by:

[tex]$$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$[/tex]

Substituting the values from the equation (where a = 3, b = 13, and c = -10), we get:

[tex]$$x = \frac{-13 \pm \sqrt{13^2 - 4*3*(-10)}}{2*3}$$[/tex]

This simplifies to:

[tex]$$x = \frac{-13 \pm \sqrt{289}}{6}$$[/tex]

So, the solutions are:

[tex]$$x = \frac{-13 + \sqrt{289}}{6} = \frac{2}{3}$$[/tex]

and

[tex]$$x = \frac{-13 - \sqrt{289}}{6} = -5$$[/tex]

So, the correct answer is A. x = two over three and x = −5.

The y-interception is y=900 or(0,900) which means that a car must travel 900 miles for the final destination. And every hour driven is 50 miles.

​

The average rate of change isIt represents how many miles per one hour changes the distance from a destination.

​

Domain of this function if the car traveled the same rate until it reached its destination:

0=-50x+900

50x=900

x=900/50=18

Domain: x∈ [0, 18].

The length of the hypotenuse is: [tex]\[ c = \sqrt{61} \][/tex]

To find the length of the hypotenuse of a right triangle with legs measuring 6 and 5, we use the Pythagorean theorem, which states:

[tex]\[ a^2 + b^2 = c^2 \][/tex]

where a  and b  are the lengths of the legs, and c is the length of the hypotenuse.

Given:

a = 6

b = 5

We need to find  c . Plugging the values into the Pythagorean theorem, we get:

[tex]\[ 6^2 + 5^2 = c^2 \][/tex]

Calculating the squares:

[tex]\[ 36 + 25 = c^2 \][/tex]

Adding the numbers:

[tex]\[ 61 = c^2 \][/tex]

To find c , we take the square root of both sides:

[tex]\[ c = \sqrt{61} \][/tex]

Therefore, the length of the hypotenuse is:

[tex]\[ c = \sqrt{61} \][/tex]

There were 945 girls and 1575 boys respectively.

Suppose that we've got two quantities with measurements as 'a' and 'b'

Then, their ratio(ratio of a to b) a:b or a/b

We usually cancel out the common factors from both the numerator and the denominator of the fraction we obtained. The numerator is the upper quantity in the fraction and the denominator is the lower quantity in the fraction). Remember that the ratio should always be taken of quantities with the same unit of measurement. Also, the ratio is a unitless(no units) quantity.

We have been given that the ratio of the number of girls to the number of boys was 3 to 5.

The ratio girls to boys;

3 to 5

The Total = 8

The number of boys was 3 to 5 . of 2,520, Then;

3/8(2520) = 7560/8

girls = 945  

5/8(2520) = 12600/8

boys = 1575

Therefore, there were 945 girls and 1575 boys respectively.

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The equation of a hyperbola is:

(x – h)^2 / a^2 - (y – k)^2 / b^2 = 1

So what we have to do is to look for the values of the variables:

For the given hyperbola : center (h, k) = (0, 0)
a = 3(distance from center to vertices)
a^2 = 9

c = 7 (distance from center to vertices; given from the foci)
c^2 = 49

By the hypotenuse formula:
c^2 = a^2 + b^2
b^2 = c^2 - a^2

b^2 =  49 – 9

b^2  = 40

Therefore the equation of the hyperbola is:

(x^2 / 9) – (y^2 / 40) = 1

Answer:

Hope this helps :)

Step-by-step explanation:

The cost of the cell phone is a function of the number of features.

The answer that best represents the situation described is option A. The cost of the cell phone is a function of the number of features.

In this case, as Kurt is buying a new cell phone, he knows that the more features the cell phone has, the more expensive it will be. This implies that the cost of the cell phone is dependent on the number of features it has.

For example, if a cell phone with basic features costs $200, a cell phone with additional features like a better camera, more storage, and waterproof capabilities may cost $400 or more.

Answer:

True

Step-by-step explanation:

All work is shown and pictured