Is 4th root a function?

the residual plot below suggests that this violation is Heteroscedasticity

The residual is the discrepancy between the actual value and the model's estimated value. The fundamental premise of regression or time series analysis is that the residual variance or quantity should be constant. As a result, there shouldn't be any patterns visible in the residual scatter plot.

The residuals scatter plot reveals a pattern. The dispersion of residuals is growing at higher values of Docs. As a result, residual variance is not constant.

Heteroscedasticity is present when the residual variance is non-constant. Regression makes the supposition that the residual variance should be constant (Homosceasticity). Consequently, the scatter plot of residuals violates the heteroscedasticity condition.

Learn more about Heteroscedasticity here:https://brainly.com/question/29736458

#SPJ4

The polynomial p(x) is x³ - 7x - 6 that is (x+1) (x+2)(x - 3)

An expression that consists of variables, constants, and exponents that is combined using mathematical operations like addition, subtraction, multiplication, and division is referred to as a polynomial (No division operation by a variable).

Given that polynomial:

p(x) = x³ - 7x - 6

Known factor: (x+1)

polynomial equation expressed as the sum of linear components.

The degree of polynomial is 3, and when we divide it by a linear equation, the result will be a quadratic.  That quadratic will have 2 solutions.

We can solve the quadratic in two linear factors and as a result we will have the answer.

First of all, we need to divide the polynomial  p(x)with the given factor (x+1) to find the other factors.

x³ - 7x - 6/x+1 = x² - x -6

Solving the quadratic:

x²- x - 6 = x² -3x +2x - 6

x(x-3)+2(x-3)

(x+2)(x-3)

Therefore the polynomial will be p(x) = x³ - 7x - 6 = (x+1) (x+2)(x - 3)

The complete question is : The polynomial p ( x ) = x 3 − 7 x − 6 p(x)=x 3 −7x−6p, left parenthesis, x, right parenthesis, equals, x, cubed, minus, 7, x, minus, 6 has a known factor of ( x + 1 ) (x+1)left parenthesis, x, plus, 1, right parenthesis. Rewrite p ( x ) p(x)p, left parenthesis, x, right parenthesis as a product of linear factors. p ( x ) = p(x)=p, left parenthesis, x, right parenthesis, equals

To learn more about polynomial refer to :

https://brainly.com/question/2833285

#SPJ1

The first step in solving a polynomial inequality is to determine the type of inequality that you are dealing with. There are two types of polynomial inequalities: strict inequalities and non-strict inequalities.

Strict inequalities are inequalities that are either less than or greater than a value, but not equal to it. For example, the inequality x < 4 is a strict inequality because it means that x is strictly less than 4 (i.e., it is less than 4 but not equal to 4).

Non-strict inequalities are inequalities that are either less than or equal to, or greater than or equal to a value. For example, the inequality x <= 4 is a non-strict inequality because it means that x is less than or equal to 4 (i.e., it is either less than 4 or equal to 4).

Once you have determined the type of inequality that you are dealing with, you can proceed to the next step, which is to solve the inequality by isolating the variable and performing the necessary operations to find the solution.

To know more on inequality

https://brainly.com/question/29068785

#SPJ4

The area of segment enclosed by chord [BC] is 0.94 [tex]cm^{2}[/tex]

Segment and area of a circle segment:

A segment is essentially the area of a circle between the chord and the arc. A circle is a path that a point equidistant from a single point on the plane can follow; this point is known as the circle's center, and the distance between it and that point is known as the circle's radius. A segment is a section of a circle's interior. A sector is the region that a segment encloses and the angle that a segment occupies. By deducting the triangle formed inside the sector from the sector where the segment is located, one can calculate the area of a circular segment.

Given radius and angle subtended by arc on circle is 4 cm and 55° respectively.

So the length of chord [BC] is [tex]\frac{55}{180}[/tex]×π = 3.84 cm.

Required area of segment enclosed = Area of segment subtended by arc [BC] - area of ΔABC

>semi-perimeter of ΔABC is [tex]\frac{(4+4+3.84)}{2} = 5.92[/tex]

>Area of ΔABC is [tex]\sqrt{5.92*(5.92-4)*(5.92-4)*(5.92-3.84)} = 6.74 cm^{2}[/tex]

>Area of segment subtended by arc {BC} = θ/360° × π[tex]r^{2}[/tex]

                                                                     =[tex]\frac{55}{180}[/tex]×16π

                                                                     = 7.68[tex]cm^{2}[/tex]

∴The area of segment enclosed by chord [BC] is [tex]7.68-6.74 = 0.94 cm^{2}[/tex]

The area of segment enclosed by chord [BC] is 0.94 [tex]cm^{2}[/tex]

To know more about area of segment, visit:

https://brainly.com/question/3652908

#SPJ1

The point lies in the solution set if x represents the number of children's books and y represents the number of puzzle books Amelie buys (9,5).

To find the point that lies in the solution set, you need to consider the constraints given in the problem. Amelie wants to purchase at least 2 more children's books than puzzle books, which means that the number of children's books should be greater than or equal to the number of puzzle books plus 2. She can afford no more than 15 items total, which means that the total number of children's books and puzzle books should be less than or equal to 15.

Based on these constraints, the point that lies in the solution set is (9,5). This point satisfies both constraints, because the number of children's books (9) is greater than the number of puzzle books (5) plus 2, and the total number of children's books and puzzle books (14) is less than or equal to 15. Therefore, the correct answer is (d) (9,5).

To learn more about point, refer:-

https://brainly.com/question/1590611

#SPJ4

We constantly gauge a prism's height perpendicular to the plane of its base. That holds true even when a prism is tilted or turned on its side.

Volume of a prism is equal to base area into height.

A prism's total surface area is equal to the sum of its two bases' surfaces and lateral surface area.

Without bases, the prism's faces are parallelograms or rectangles. And any n-sided polygon, whether a triangle, square, rectangle, or other, might serve as the prism's basis.

Dimensions of a prism. the separation between a prism's two bases. The technically smallest line segment between the bases . The term "altitude" also relates to how long this part is.

Any prism's volume is equal to V = BH, where B is its base's area and H is its height.

For such more question on volume with base and area.

https://brainly.com/question/18994842

#SPJ4

x=-5/√2 and x=-√2 are roots of the quadratic equation √2x²+7x+5√2=0

A quadratic equation is a second-order polynomial equation in a single variable x , ax2+bx+c=0. with a ≠ 0 .

The given quadratic equation is √2x²+7x+5√2=0

We will factorize  the middle term by middle term method

√2x²+2x+5x+5√2=0

√2x(x+√2)+5(x+√2)=0

(√2x+5)(x+√2)=0

√2x+5=0

√2x=-5

Divide both sides by √2

x=-5/√2

and x+√2=0

x=-√2

Hence, x=-5/√2 and x=-√2 are roots of the quadratic equation √2x²+7x+5√2=0

To learn more on Quadratic equation click:

https://brainly.com/question/17177510

#SPJ4

38 °F is the temperature after 5 hours of time.

Two or more expressions with an Equal sign is called as Equation.

Given that the temperature is 36 °F.

The temperature decreases for 4 hrs

Each hour, the temperature decreases by 2 °F.

1 hour=  2 °F.

For 4 hours it will be 4(2)=8 °F.

So the temperature after 4 hours is 36-8=28 °F.

the temperature rises 10 °F in one hour

28 °F+10°F=38 °F

Hence, the temperature after 5 hours is 38 °F.

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ1

The value of x is 10.

What is expression?

An expression in math is a sentence with a minimum of two numbers or variables and at least one math operation. This math operation can be addition, subtraction, multiplication, or division.

The structure of an expression is:

Expression is (Number/variable, Math Operator, Number/variable)

According to the given question:

EF = 10x+20

FG=36

EG=156

The following expression is true for the given data.

EF+FG = EG

Substitute the given data into the expression

(10x + 20) + (36) = 156

Solve for the unknown value of x

10x + 56 = 156

10x = 100

x = 10

Hence the value of x is 10.

To know more about expression visit

https://brainly.com/question/17971295

#SPJ1

By drawing a mirror line across the center of a shape and examining if both halves are the same, you may determine whether it is symmetrical.

When anything has two identical parts, it is symmetrical. In other terms, symmetry is the presence of identical pieces facing one another or revolving around an axis.

But what attributes give a shape symmetry? A symmetrical shape has an identical side on the side, also known as symmetry. When mirrored, rotated, or translated, symmetrical shapes retain their original appearance. The four main subcategories of symmetry are translation, rotation, reflection, and glide reflection. However, the primary type of symmetry in mathematics taught in schools is reflectional symmetry, commonly referred to as mirror symmetry or line symmetry.

To learn more about symmetrical here:

https://brainly.com/question/28207523

#SPJ4

To round to the nearest meter, use the units place and round to the nearest whole number. At the moment, we have a two in place of a one.

It is two divisions or two tenths of a mile short of the halfway point. Therefore, seven centimeters are the closest centimeters.

To figure out how to round, we look to the right, at the unit in the tens place.

Let x represent the unknown, which is the building's height.

level of post = level of the structure

level of the shadow level of the shadow

3.3 m = x

1.78 m 49. 75 m Find the solution for x: (3.3 m) (49.75 m) = x 1.78 m = x The building is 92 meters high, rounded to the nearest meter.

To learn more about nearest meter here

https://brainly.com/question/13088027

#SPJ4

First make the graph of the functions, then  if the two graphs are symmetric with respect to the line y = x (mirror images over y = x ), then they are inverse functions.

Symmetric

A figure or shape that can be divided into two equal parts by a line is called symmetric figures.

Inverse Functions

The inverse function of a function f  is a function that undoes the operation of f. The inverse of f exists if and only if f is bijective, and if it exists, is denoted by F^-1.

Learn more about graph and functions here :-

brainly.com/question/17267403

#SPJ4

The Answers to the Equation is shown below.

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given:

1. 5x - 7 = 4x +3

5x- 4x = 3 + 7

x= 10

2. 6 + 2x = 7x - 9

7x- 2x = 6+9

5x = 15

x= 3

3. 8x + 1 = - 8 - x

9x = -9

x= -1

4. -5+ 12x = 18x + 7

6x = -12

x= -2.

5. -4x+ 3= 5x- 13 -x

-8x = -16

x= 2

6. -10 - 11x + 24 = 3x

14x = 14

x=1

7. 8 + 3x = x + 11 + 2x

No Solution

8. 5 +17x +9 = 2x + 21x + 14

6x= 0

x=0

9. 6x + 8 - 13x + 10 = 4 - 6x - 11 + 4x

-5x= 25

x= -5

10. -14 + 5 - x - 3 =x+6+3x + x

4x= -14

x= -3.5

Learn more about Equation here:

https://brainly.com/question/29657983

#SPJ1

For the shaded region given in the diagram the area is obtained as 50.2 cm². The correct option is (A).

A circle is a geometric shape, all of which points are equidistant from a fixed point called as the center.The center of the circle does not lie on it. The angle subtended by the semicircle on its any point is always a right angle.

The diameters of the external and internal circle are 10 cm and 6 cm.

Then, the radius are given as 10/2 = 5 cm and 6/2 = 3 cm

Now, area of the shaded region is given as follows,

Area of external circle - Area of internal circle

= π × 5² -  π × 3²

= 16π

= 50.2

Hence, the area of the shaded region is given as 50.2 cm².

To know more about circle click on,

brainly.com/question/11833983

#SPJ1

The level of a line's slope indicates its steepness.

The slope is computed mathematically as "rise over run" (change in y divided by change in x).

In accordance with the slope equation, the slope of such a line may be determined by dividing the rise of the line between two positions by the run of the same line between the same two sites. 

That is to say,

Example -

This line goes through the points (0,0) and (4,4).

Now, slope = (y₂ - y₁) / (x₂ - x₁)

slope = (4 - 0) / (4 - 0)

slope = 4 / 4

slope = 1

So, from the above calculation it is shown that, the slope of the line is 1.

To know more about slope refer to:

https://brainly.com/question/26888769

#SPJ4

The HCF and LCM are Highest common factor and Least common multiple respectively

What is HCF and LCM?

The Greatest Common Divisor GCF or the Highest Common Factor HCF is the highest number that divides exactly into two or more numbers. It is also expressed as GCF or HCF

Least Common Multiple (LCM) is a method to find the smallest common multiple between any two or more numbers. A common multiple is a number which is a multiple of two or more numbers

Product of HCF x LCM = product of two numbers

Given data ,

Let the two numbers be A and B

The value of A is A = 160

The value of B = 252

HCF is the product of common prime factors

So , Prime Factorization of 160: 2 x 2 x 2 x 2 x 2 x 5

And , Prime Factorization of 252: 2 x 2 x 3 x 3 x 7

So , HCF = 2 x 2 = 4

Now, finding LCM of 160 and 252

LCM is the product of all factors of both numbers

Prime Factorization of 160: 2 x 2 x 2 x 2 x 2 x 5

Prime Factorization of 252: 2 x 2 x 3 x 3 x 7

LCM= 2 x 2 x 2 x 2 x 2 x 3 x 5 x 7

LCM= 10080

Now , the product of HCF x LCM = product of two numbers

160 x 252 = 40320

4 x 10080 = 40320

Hence , the HCF and LCM are solved

To learn more about HCF and LCM click :

https://brainly.com/question/10942748

#SPJ4

Factoring x³ is a relatively straightforward process.

Factory is a quantity or an expression that is multiplied to another quantity or expression to obtain a product. Factor are used in mathematics to solve problems involving multiplication division and equation factor can also be used in financial analysis to calculate interest, payments loan repayments, and another financial transaction factor can also be used to analyze supply and demand market trends and other economic indicators.

The most common way to factor x³ is to use the factorization method. This involves writing x³ as a product of three linear factors, which can be done in the following way:

x³ = x × x × x

Alternatively, you can use the method of grouping to factor x³. This involves writing x³ as a product of two binomials, which can be done in the following way:

x³ = (x × x) × x

You can also use the method of synthetic division to factor x³. This involves dividing the coefficient of x³ by the coefficient of x and then dividing the resulting coefficients by the coefficient of x. This can be done in the following way:

x³ = x² + 0 × x + 0

Once you have factored x³, you can use the factors to solve equations or to find other information related to the equation. In addition, you can use the factored form of x³ to simplify certain expressions.
To know more about factor click-
https://brainly.com/question/25829061
#SPJ4

Answer:

8cm

Step-by-step explanation:

We can figure out what the side length of this would be by squaring the area.

[tex]\sqrt{64}[/tex] = 8

To check our work, we can multiply the length by the height. (8 and 8)

8 × 8 = 64

Nado's chessboard side length would be 8cm.

Answer: 38

Step-by-step explanation:

24 divided by 5 = 4.8 per hour

4.8 times 8 = 38.4 or 38 in 8 hours

It can burn 38 in 8 hours

Answer:

False

Step-by-step explanation:

[tex]2\sin x \cos x =\sin 2x \implies 4 \sin x \cos x=2\sin 2x \\ \\ \therefore \int 4\sin x \cos x dx=2\int \sin 2x dx \\ \\ 2\int \sin 2x dx=\frac{2}{2}(-\cos 2x)+C=-\cos 2x+C[/tex]

Triangle ABC is congruent to Triangle CDA using the SSS rule.

It is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.

We have,

SSS rule states that,

If the three sides of one triangle are equal to the three sides of another triangle, then the triangles are congruent.

To prove:

ΔABC ≅ ΔCDA.

AB = DC ( given)

AD = BC (given)

AC = AC (common to both the triangles)

ΔABC ≅ ΔCDA ( By SSS rule )

Thus,

ΔABC ≅ ΔCDA by SSS rule.

Learn more about triangles here:

https://brainly.com/question/25950519

#SPJ1

The surface area of the net of the triangular prism in the space provided,

2400cm².

Prism is a polyhedron with two identical ends in three dimensions.

Surface area = (Perimeter of the base × Length of the prism) + (2 × Base                Area)

                     = (S₁ + S₂+ S₃)l + bh

where, b is the bottom edge of the base triangle, h is the height of the base triangle, l is the length of the prism and S₁, S₂, and S₃ are the three edges (sides) of the base triangle (bh) is the combined area of the two triangular faces [2 × (1/2 × bh)] = bh.

The side of the triangle is S₁ = 8, S₂= 15, and S₃= 17.

The rectangular's base = 20 and height = 8

Substituting all the values in the formula:

Surface area

= (Perimeter of the base × Length of the prism) + (2 × Base Area)

= [ ( 15 +17+8) x 20] + (20 x 80)

= 800 + 1600

= 2400 cm²

Therefore, the surface area of the prism is 2400 cm².

To learn more about the prism;

https://brainly.com/question/12649592

#SPJ1

The end behavior of the graph would be that it would approach negative infinity as x approaches positive infinity, and negative infinity as x approaches negative infinity.

When the degree of a polynomial is even and the leading coefficient is negative, the end behavior of the graph is that it will approach negative infinity as x increases or decreases without bound in either direction. This is because the degree of the polynomial is even and the coefficient is negative, meaning that the leading term will always be negative. Since the leading term is always negative, the graph will approach negative infinity as x increases or decreases without bound in either direction. This is the general behavior of a polynomial with even degree and a negative leading coefficient.

Learn more about graph here

https://brainly.com/question/17267403

#SPJ4

Estimate the height of the tree 50 years after it was planted is 15.92 feet

DBH (inches) × π = Estimated Age of Tree (years)

Let us Consider inches is X

X *3.14=50

X=50/3.14

X=15.92

To learn more about to find height of the tree refer to:

https://brainly.com/question/27140597

#SPJ1

So, we ordered 4 size 3 balls for the 7-8 year old team and 11 size 5 balls for the 14 year old team.

To solve this problem, we can set up a system of equations to represent the information given in the problem. Let x be the number of size 3 balls purchased for the 7-8 year old team, and let y be the number of size 5 balls purchased for the 14 year old team.

The first equation will represent the cost of the size 3 balls: 15x = $220.

The second equation will represent the cost of the size 5 balls: 20y = $220.

The third equation will represent the total number of balls purchased: x + y = 12.

Now that we have set up the system of equations, we can solve for x and y using the method of substitution.

First, we can solve the first equation for x: x = $220 / 15 = 12/3 = 4.

Then, we can substitute this value for x in the second equation: 20y = $220 -> y = $220 / 20 = 11.

Finally, we can check our solution by substituting these values for x and y in the third equation: 4 + 11 = 15, which does not equal 12. This means that our solution is incorrect.

To find the correct solution, we can go back and try solving the second equation for y instead: y = $220 / 20 = 11.

Then, we can substitute this value for y in the first equation: 15x = $220 -> x = $220 / 15 = 12/3 = 4.

Finally, we can check our solution by substituting these values for x and y in the third equation: 4 + 11 = 15, which equals 12. This means that our solution is correct: we ordered 4 size 3 balls for the 7-8 year old team and 11 size 5 balls for the 14 year old team.

To learn more about System Of Equations,

visit; brainly.com/question/21620502

#SPJ4

The first equation will represent the cost of the size 3 balls: 15x = $220.

The second equation will represent the cost of the size 5 balls: 20y = $220.

The third equation will represent the total number of balls purchased: x + y = 12.

Now that we have set up the system of equations, we can solve for x and y using the method of substitution.

First, we can solve the first equation for x: x = $220 / 15 = 12/3 = 4.

Then, we can substitute this value for x in the second equation: 20y = $220 -> y = $220 / 20 = 11.

Finally, we can check our solution by substituting these values for x and y in the third equation: 4 + 11 = 15, which does not equal 12. This means that our solution is incorrect.

To find the correct solution, we can go back and try solving the second equation for y instead: y = $220 / 20 = 11.

Then, we can substitute this value for y in the first equation: 15x = $220 -> x = $220 / 15 = 12/3 = 4.

Finally, we can check our solution by substituting these values for x and y in the third equation: 4 + 11 = 15, which equals 12. This means that our solution is correct: we ordered 4 size 3 balls for the 7-8 year old team and 11 size 5 balls for the 14 year old team.

The measure of the missing angle in the given isosceles triangle ABC is 70°   .

The Isosceles Triangle is defined as a type of triangle in which the measure of the angle of two sides of the triangle are equal in measure .

In the figure given below , we can see that ,

In triangle ABC , the triangle is an isosceles triangle ,

So , measure of angle B is = x° ;

the measure of angle C is = x° ;

So , By Angle Sum Property Of Triangle ;

∠B + ∠C + ∠A = 180°

x° + x° + 40° = 180° ;

2x + 40 = 180

2x = 180 - 40 ;

2x = 140 ;

x = 140/2 ;

x = 70° .

Therefore , the measure of the missing angle is 70° .

The given question is incomplete , the complete question is

How do you find the measure of the missing angle of the given isosceles triangle ?

Learn more about Isosceles Triangle here

https://brainly.com/question/27202721

#SPJ4