Find the x-intercept of the graph of the linear equation y = −1
2
x + 3.


x-intercept

Step-by-step explanation:

hello,

18 square → ⅔ hrs.

⅔ hrs → 18 square.

⅓ hr → 18 ÷ ⅔

⅓ hr = 27 square.

3/3 hr = 27 * 3/3

= 27 square per hour.

ans : D

thank you;

Answer:

n + 5/5 = -9

Step-by-step explanation:

Answer:

see below

Step-by-step explanation:

If the problem is

(n+5) /5

Let n = -10

(-10+5)/5

-5/5

-1

or if

n+ 5/5

-10 + 1

-9

Answer:  (a) 720°,  (b)  120°

Step-by-step explanation:

A hexagon is a polygon with six sides.

Formula for finding the interior angle of a polygon = ( 2n - 4 )complementary

                                                                                    = ( 2n - 4 ) 90

complimentary angle is 90°  or

                                                                                     = ( n - 2 )supplementary

supplementary angle is 180° . Now solving the question now since n = 6

we now put it in any of the formula above

       ( 2 x 6 - 4 ) x 90  =  ( 12 - 4 ) x 90

                                   =   8 x 90

                                   = 720°     or

     ( 6 - 2 ) x 180        =  4 x 180

                                  = 720°.

The second part of the question, each size of the interior angle

                                  = ⁷²⁰/₆

                                  = 120°

B={x|x is an even whole no less than 9}

Now

\(\\ \sf\longmapsto A\cap B=\{2,8\}\)

Answer:

A = {1, 2, 3, 8}

• Let set B include the values of x

B = {0, 2, 4, 6, 8}

• Therefore;

\({ \underline{ \rm{ \: \:A \cap B \: \dashrightarrow \: \: \{2, \: 8 \} \: \: }}}\)

Answer:

4/18

Step-by-step explanation:

Theres a total of 18 shirts and a total of 4 red shirts so it would give you a 4/18 ratio/chance of getting red.

Answer:

4:18

Step-by-step explanation:

8+4+6 is 18 and there are 4 red shirts

Answer:

A or D

Step-by-step explanation:

I cant totally remember, but a and d make sense. sorry, I learned about this in 6th

The sampling method used by the restaurant manager allows for efficient data collection and a representative sample, it may introduce bias and lacks randomization.

Based on the information provided, we can identify the following statements that are true about the sampling method used by the restaurant manager to evaluate customer satisfaction with the new smoothie:

1. The manager uses systematic sampling: The manager surveys every other customer who orders the new smoothie. This systematic approach involves selecting every second customer, providing a consistent and organized sampling method.

2. The sample is representative: By surveying every other customer who orders the new smoothie, the manager ensures that the sample includes a variety of customers, reflecting the customer population as a whole.

3. The sample size may be smaller than the total customer base: Since the manager surveys every other customer, the sample size may be smaller compared to surveying every customer. This allows for efficient data collection and analysis.

4.The sampling method may introduce bias: The manager may inadvertently introduce bias by only surveying every other customer. Customers who are skipped in the survey may have different preferences or opinions, leading to a potential bias in the results.

5. The sampling method lacks randomization: Randomization is not employed in this sampling method, as the manager systematically selects customers. This could potentially introduce bias or exclude certain types of customers from the sample.

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Answer:

c

Step-by-step explanation:

Answer:

y=8x-34

Step-by-step explanation:

Answer: -2

I hope this helps and may God bless you! Have a nice day, bye! :)

Answer:

a) To solve the differential equation y''-2y'-3y= e^4x, we first find the characteristic equation:

r^2 - 2r - 3 = 0

Factoring, we get:

(r - 3)(r + 1) = 0

So the roots are r = 3 and r = -1.

The general solution to the homogeneous equation y'' - 2y' - 3y = 0 is:

y_h = c1e^3x + c2e^(-x)

To find the particular solution, we use the method of undetermined coefficients. Since e^4x is a solution to the homogeneous equation, we try a particular solution of the form:

y_p = Ae^4x

Taking the first and second derivatives of y_p, we get:

y_p' = 4Ae^4x

y_p'' = 16Ae^4x

Substituting these into the original differential equation, we get:

16Ae^4x - 8Ae^4x - 3Ae^4x = e^4x

Simplifying, we get:

5Ae^4x = e^4x

So:

A = 1/5

Therefore, the particular solution is:

y_p = (1/5)*e^4x

The general solution to the non-homogeneous equation is:

y = y_h + y_p

y = c1e^3x + c2e^(-x) + (1/5)*e^4x

b) To solve the differential equation y'' + y' - 2y = 3xe^x, we first find the characteristic equation:

r^2 + r - 2 = 0

Factoring, we get:

(r + 2)(r - 1) = 0

So the roots are r = -2 and r = 1.

The general solution to the homogeneous equation y'' + y' - 2y = 0 is:

y_h = c1e^(-2x) + c2e^x

To find the particular solution, we use the method of undetermined coefficients. Since 3xe^x is a solution to the homogeneous equation, we try a particular solution of the form:

y_p = (Ax + B)e^x

Taking the first and second derivatives of y_p, we get:

y_p' = Ae^x + (Ax + B)e^x

y_p'' = 2Ae^x + (Ax + B)e^x

Substituting these into the original differential equation, we get:

2Ae^x + (Ax + B)e^x + Ae^x + (Ax + B)e^x - 2(Ax + B)e^x = 3xe^x

Simplifying, we get:

3Ae^x = 3xe^x

So:

A = 1

Therefore, the particular solution is:

y_p = (x + B)e^x

Taking the derivative of y_p, we get:

y_p' = (x + 2 + B)e^x

Substituting back into the original differential equation, we get:

(x + 2 + B)e^x + (x + B)e^x - 2(x + B)e^x = 3xe^x

Simplifying, we get:

-xe^x - Be^x = 0

So:

B = -x

Therefore, the particular solution is:

y_p = xe^x

The general solution to the non-homogeneous equation is:

y = y_h + y_p

y = c1e^(-2x) + c2e^x + xe^x

c) To solve the differential equation y" - 9y' + 20y = x^2*e^4x, we first find the characteristic equation:

r^2 - 9r + 20 = 0

Factoring, we get:

(r - 5)(r - 4) = 0

So the roots are r = 5 and r = 4.

The general solution to the homogeneous equation y" - 9y' + 20y = 0 is:

y_h = c1e^4x + c2e^5x

To find the particular solution, we use the method of undetermined coefficients. Since x^2*e^4x is a solution to the homogeneous equation, we try a particular solution of the form:

y_p = (Ax^2 + Bx + C)e^4x

Taking the first and second derivatives of y_p, we get:

y_p' = (2Ax + B)e^4x + 4Axe^4x

y_p'' = 2Ae^4x +

The set of side measurements that could be used to form a right triangle is 3, 4 and 5 option (D) is correct.

What is a right-angle triangle?

It is a triangle in which one of the angles is 90 degrees and the other two are sharp angles. The sides of a right-angled triangle are known as the hypotenuse, perpendicular, and base.

It is given that:

The side length of the triangle is shown in the option:

As we know,

Pythagoras' theorem is the square of the hypotenuse in a right-angled triangle is equal to the sum of the squares of the other two sides.

Using Pythagoras' theorem:

From option(D):

3, 4 and 5

(3)² + (4)² = 5²

9 + 16 = 25 (True)

Thus, the set of side measurements that could be used to form a right triangle is 3, 4 and 5 option (D) is correct.

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Answer:

240

Step-by-step explanation:

60 = 1/4 of x

so: x = 60*4

x = 240

check:

240/4 = 60

60 = 60 true!!

Answer:

240÷4=60

Step-by-step explanation:

docientos cuarenta dividido entre cuatro es igual a sesenta.

By using Pythagoras theorem we get the height of the roof of dog house is 21 inches.

The Pythagoras theorem states that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides. 

This theorem is named after the Greek philosopher Pythagoras, who lived around 570 BC. born. 

According to the question:

Given, Hypotenuse(h) = 29 inches

           Base(b) = 40/2 = 20 inches

Using Pythagoras theorem, we get

h² = b² + p²

⇒ 29² = 20² + p²

⇒ p² = 29² - 20²

⇒ p² = 841 - 400

⇒ p² = 441

⇒ p = √441

⇒ p = 21

∴ The height of the roof of dog house is 21 inches.

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The solution to given linear inequality, 6(x1.5) + 30 < 48, is x < 2

From the question, we are to solve the given linear inequality

The given linear inequality is

6(x1.5) + 30 < 48

First, we will write this inequality properly.

The inequality can be properly written as

6(1.5x) + 30 < 48

Now, we will solve the linear inequality

6(1.5x) + 30 < 48

Subtract 30 from both sides of the equation

6(1.5x) + 30 - 30 < 48 - 30

6(1.5x) < 18

Divide both sides of the inequality by 6

6(1.5x)/6 < 18/6

(1.5x) < 3
1.5x < 3

Divide both sides of the inequality by 1.5

1.5x/1.5 < 3/1.5

x < 2

Hence, the solution is x < 2

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9514 1404 393

Answer:

  A, C, D, E, F

Step-by-step explanation:

The figure has 4 sides: 2 pairs of parallel sides, all of equal length. The angles are right angles.

The figure is a ...

Answer:

A, and F.

Step-by-step explanation: I hope this helps.

Four sides are called a quadrilateral.

Three sides are called a triangle.

Five sides are called a pentagon.

Six sides are called hexagons.

A rectangle is a quadrilateral with four right angles.

A square is a quadrilateral with four right angles.

A rhombus is a quadrilateral with four equal sides.

A parallelogram is a quadrilateral with two pairs of parallel sides.

A trapezoid is a quadrilateral with one pair of parallel sides.

Acute angles are less than 90°

Right angles are exactly 90°

Obtuse angles are more than 90°

Acute triangle has three acute angles.

Right triangle has one right angle.

An obtuse triangle has one obtuse angle.

Isosceles triangle has the minimum of two sides that are equal length.

Equilateral triangle has three sides that are at an equal length.

Scalene triangles have three sides of different lengths,

Acute triangles with three equal sides are called an equiangular triangle.

The equation of remaining chocolate C  in terms of t is C = 30 - 3t.

A mathematical statement called an equation demonstrates the balance or equality of two expressions. It contains of variables, integers, and mathematical operations and is denoted by the equal symbol (=). Equations may be solved to determine unknown values and are used to express relationships between various quantities. To solve for x in the equation 2x + 3 = 7, for instance, remove 3 from both sides, which gives 2x = 4, then divide both sides by 2, which gives x = 2.

Given that,

Initial number of chocolates in box = 30

Also given that after 8 nights, number of remaining chocolates = 6

Implies that,

In 8 nights, 24 chocolates were treated.

In 1 night, 3 chocolates were treated.

The equation of remaining chocolate C  in terms of t can be written as

C = 30 - 3t.

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Thus, the scale factor from circle A to circle B is found to be 2.

The ratio between comparable measurements of just an element and a portrayal of that element is known as a scale factor in mathematics. The copy will be larger if the scaling factor is a whole number. A fractional scaling factor means that the duplicate will be smaller.

You must first choose which direction we are scaling in order to determine the scale factor:

The radius of circle A = 2 units

The radius of circle B = 4 units.

So, there is a dilation with the scale factor of 2 units as 2*2 = 4 units.

Thus, the scale factor from circle A to circle B is found to be 2.

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Concluding that m∠ J K L = m ∠ Q R S is an example of: substitution property of equality

The substitution property of equality states that 'If a variable x is equal to another variable y, then x can be substituted in place of y in any equation/expression and y can be substituted in place of x in any equation/expression.

Now, we are told that m ∠ J K L = m ∠ X Y Z and m ∠ X Y Z = m ∠ Q R S.

Thus, concluding that m ∠ J K L = m ∠ Q R S is an example of: substitution property of equality

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In response to the query, we can state that therefore, the three angle statements that are always true regarding the diagram are: m∠5 + m∠3 = m∠4 and m∠3 + m∠4 + m∠5 = 180° and m∠5 + m∠6 =180°

An angle is a shape in Euclidean geometry made composed of two rays, referred to as the angle's sides, that come together at a centre point known as the angle's vertex. An angle that is in the plane where the rays are placed can be produced by two rays. Another angle is produced when two planes collide. Dihedral angles are the name given to them. In planar geometry, an angle is the form made by two rays or lines that share a termination. The English word "angle" derives from the Latin word "angulus," which means "horn." The vertex, also known as the angle's sides, is where the two rays' common terminals meet.

To answer this question, we can use the following facts about the angles in a triangle:

The sum of the interior angles of a triangle is always 180 degrees.

An exterior angle of a triangle is equal to the sum of the two opposite interior angles.

Using these facts, we can analyze the diagram and make the following conclusions:

m∠5 + m∠3 = m∠4 is always true because angle 4 is the exterior angle at angle 3, so m∠4 = m∠3 + m∠5.

m∠3 + m∠4 + m∠5 = 180° is always true because the sum of the three exterior angles of a triangle is always 360 degrees (i.e., one full rotation), so m∠3 + m∠4 + m∠5 = 360°. Also, we know that m∠3 + m∠5 = m∠4, so substituting this gives m∠4 + m∠4 = 360°, which simplifies to 2m∠4 = 360°, or m∠4 = 180° - m∠3 - m∠5. Substituting this into the original equation gives m∠3 + m∠4 + m∠5 = 180°.

m∠5 + m∠6 =180° is always true because angle 6 is the exterior angle at angle 5, so m∠6 = m∠5 + m∠3. Substituting this into the equation gives m∠5 + m∠5 + m∠3 = 180°, which simplifies to m∠5 + m∠6 = 180°.

Therefore, the three statements that are always true regarding the diagram are:

m∠5 + m∠3 = m∠4

m∠3 + m∠4 + m∠5 = 180°

m∠5 + m∠6 =180°

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Young adults might value credit in case of an emergency for several reasons. Firstly, credit provides financial flexibility, allowing them to access funds quickly when unexpected expenses arise.

This can be essential for covering costs related to medical emergencies, car repairs, or other unforeseen events that may strain their limited savings. Secondly, young adults often have less established financial safety nets than older individuals. They may not have significant savings, insurance policies, or support from family members to fall back on during emergencies. Credit, in this case, acts as a temporary financial cushion, enabling them to manage immediate needs without resorting to high-interest loans or further jeopardizing their financial stability.

Thirdly, responsible use of credit can help young adults build a positive credit history. Demonstrating responsible borrowing and repayment habits will make it easier for them to access more favorable credit terms in the future, such as lower interest rates or higher credit limits. This can prove valuable when making significant purchases, like buying a home or financing higher education.

Lastly, having access to credit can also provide young adults with a sense of financial independence and empowerment. Knowing they have the means to handle emergencies without relying on others can boost their confidence in managing personal finances and help them make more informed financial decisions as they navigate adulthood.

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No. We cannot always use synthetic divison to divide polynomials.

Synthetic division can only be used to divide polynomials if the degree of the denominator is  equal to one.

Synthetic division is only used for a linear factor of the denominator.

When the degree of the denominator is greater than one, we can use long division.

So, we cannot always use synthetic division for dividing polynomials

Therefore, no. We cannot always use synthetic divison to divide polynomials.

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Answer:

30 minutes.

Step-by-step explanation:

You can make a proportion, which would be 10 selfies : 12 minutes. The second one will be 25 selfies : x minutes.

They have to be equal, since it is given that the rate stays the same. So 10:12=25:x

A proportion can be written as a fraction, so 10/12=25/x.

Cross multiply, and you get 10*x=12*25, or 10x=300.

Now divide both sides by 10 to get x=30.

Answer: 99.8

Step-by-step explanation:

1. The quadratic function for the Area in terms of x: A(x) = 24x.

2. The cross-sectional area is maximized when the depth of the gutter is 0.

3. The maximum cross-sectional area is square inches 0.

To determine the depth of the gutter that maximizes its cross-sectional area and allows the greatest amount of water to flow, we need to follow a step-by-step process.

1. Write a quadratic function for the area in terms of x:

The cross-sectional area of the gutter can be represented as a rectangle with a width of 24 inches and a depth of x. Therefore, the area, A(x), is given by A(x) = 24x.

2. The cross-sectional area is maximized when the depth of the gutter is:

To find the value of x that maximizes the area, we need to find the vertex of the quadratic function. The vertex of a quadratic function in form f(x) = ax² + bx + c is given by x = -b/(2a). In our case, a = 0 (since there is no x² term), b = 24, and c = 0. Thus, the depth of the gutter that maximizes the area is x = -24/(2 * 0) = 0.

3. The maximum cross-sectional area is square inches:

Substituting the value of x = 0 into the quadratic function A(x) = 24x, we get A(0) = 24 * 0 = 0. Therefore, the maximum cross-sectional area is 0 square inches.

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Answer:

Diameter = 2 m

Radius = 1 m

Area = 3.14 m²

Circumference = 6.28 m

Step-by-step explanation:

✔️Area of the circular rug is already given as 3.14 m²

✔️find radius (r):

Area = πr²

Thus,

Take π as 3.14

3.14*r² = 3.14

Divide both sides by 3.14

r² = 3.14/3.14

r² = 1

find the square root of both sides

r = √1

radius (r) = 1 m

✔️Diameter = 2*r = 2*1 = 2 m

✔️ Circumference = 2πr

r = 1 m

π = 3.14

Thus,

Circumference = 2*3.14*1 = 6.28 m

The expression in the mathematical form will be (1/4)( 2 - 3x ) / ( 2x ).

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

The word form of the expression is given as adding one-fourth of two subtracted from thrice a number to twice the same number.​

The expression can be written as,

E = (1/4)( 2 - 3x ) / ( 2x ).

Hence, the expression will be (1/4)( 2 - 3x ) / ( 2x ).

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Answer:

The area of the pyramid is 360 unit²

Step-by-step explanation:

Given

Base Edge, a = 10

Height, h = 12

Required

Determine the surface area

The surface area of a regular pyramid is calculated as thus;

\(A = a^2 + 2a\sqrt{\frac{a^2}{4} + h^2}\)

Substitute values for a and h

\(A = 10^2 + 2 * 10 * \sqrt{\frac{10^2}{4} + 12^2}\)

Evaluate all squares

\(A = 100 + 2 * 10 * \sqrt{\frac{100}{4} + 144}\)

\(A = 100 + 2 * 10 * \sqrt{25 + 144}\)

\(A = 100 + 2 * 10 * \sqrt{169}\)

Take positive square root of 169

\(A = 100 + 2 * 10 * 13\)

\(A = 100 + 260\)

\(A = 360\)

Hence, the area of the pyramid is 360 unit²

Answer:

B.) 360 units2

Step-by-step explanation:

I got it correct on founders education