For what value of k the following pair of linear equations has infinitely many solutions 10x 5y?.

Answers

Answer 1

The 2 equations will have infinitely many solutions if k equals 10.

Here we have

10x + 5y − (k−5) = 0 and 20x + 10y − k = 0

Since these 2 are already in the standard form

a₁x + b₁y + c₁ = 0

and

a₂x + b₂y + c₂ = 0

we don't have to make any changes to them

According to the law, an equation has infinitely many solutions if

a₁/a₂ = b₁/b₂ = c₁/c₂

here,

a₁ = 10,  b₁ = 5, and c₁ = - k + 5

and,

a₂ = 20, b₂ = 10, and c₂ = - k

Hence, we get

10/20 = 5/10 = ( - k + 5)/(-k)

or, (k - 5)/k = 1/2

or, 2k - 10 = k

or, k = 10

Hence the 2 equations will have infinitely many solutions if k is equal to 10.

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Complete Question

For what value of k does the following pair of linear equations have infinitely many solutions?

10x + 5y − (k−5) = 0 and 20x + 10y − k = 0


Related Questions

What is type of solution Class 9?.

Answers

The types of solutions for an equation depend on the type of equation, but in general, the most common types of solutions are: single solution, no solution and infinite solutions.

In mathematics, particularly in algebra, a solution of an equation is a value or a set of values that, when substituted into the equation, makes it a true statement.

Single solution: An equation has a single solution when it has exactly one value that satisfies the equation. This solution is unique and it can be found by solving the equation for the variable.

No solution: An equation has no solution when it is impossible to find a value that satisfies the equation. This happens when the equation is contradictory or inconsistent. For example, the equation "2x = 5x + 1" has no solution because no value of x can make the equation true.

Infinite solutions: An equation has infinite solutions when any value of the variable satisfies the equation. This happens when the equation is an identity, meaning it is true for all values of the variable. For example, the equation "2x + 0 = 2x" has infinite solutions because any value of x will make the equation true.

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What is the nature of roots of quadratic equation 9x2 12x +4?.

Answers

The nature of the roots of the quadratic equation 9x2 12x + 4 is that it has one root, which is equal to -4.

The nature of the roots of a quadratic equation is determined by its discriminant (b2 – 4ac). The discriminant of the given equation 9x2 12x + 4 is (12)2 – 4(9)(4) = 144 – 144 = 0.

Since the discriminant is equal to zero, the equation has two equal (or identical) roots. This indicates that the equation has one root since its roots are equal. We may apply the quadratic formula to get the equation's root.

The quadratic formula states that the roots of a quadratic equation can be found by solving the equation:

x = (-b ± √(b2 – 4ac))/2a

When we apply the formula to the given equation, we get:

x= (-12 ± √(0))/2(9)

Since the discriminant is equal to zero, the equation has one root. The root of the equation is x = -4.

Therefore, the nature of the roots of the quadratic equation 9x2 12x + 4 is that it has one root, which is equal to -4.

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grams per cubic centimeter to kilograms per cubic meter

Answers

Grams per cubic centimeter to kilograms per cubic meter is 1000.

1 g/cm³ = 1000 1 kg/m³

How to convert from g/cm³ to kg/m³?

The conversion value:

1 gram = 1/1000 kg1 cm³ = 1/1000000 m³

Find the conversion from grams per cubic centimeter to kilograms per cubic meter!

Grams per cubic centimeter = g/cm³Kilograms per cubic meter = kg/m³

Multiply the number with the each conversion value!

See that the cubic centimeter is as a denominator. So, we reverse the fractional value.

1 g/cm³

= 1 × 1/1000 × 1000000/1 kg/m³

= 1000 kg/m³

Hence, the conversion value from grams per cubic centimeter to kilograms per cubic meter is 1000.

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A peron in a wheelchair exert a force of 25 n to go up a ramp that i 10 m long. The weight of the peron and wheelchair i 60 n and the height of the ramp i 3 m

Answers

To determine the amount of work done by the person in the wheelchair going up the ramp, you can use the formula for work:

work = force x distance x cos(theta)

where force is the force exerted by the person (25 N), distance is the distance traveled (10 m), and theta is the angle between the force and the displacement.

The angle between the force and the displacement is 90 degrees because the force is perpendicular to the displacement.

The force exerted by the person is to overcome the force of gravity on the person and wheelchair weight (60 N).

work = force x distance x cos(90)

work = (25 N + 60 N) x 10 m x cos(90)

work = 85 N x 10 m x 0

work = 0 J

It's impossible to do work when the angle between the force and the displacement is 90 degrees because the force and the displacement are perpendicular to each other.

The height of the ramp (3 m) is not used in this calculation, as it is not related to the force or distance.

The work done by the person in the wheelchair is 0 J because the force exerted by the person is perpendicular to the displacement. However, the person will be expending energy to overcome the force of gravity and move the wheelchair up the ramp.

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third root of 27x ^ 9​

Answers

Answer: 3x^4*sqrt(3x) is the answer

Step-by-step explanation:

Factor 27 into its prime factors

          27 = 33

To simplify a square root, You take the square factors, or factors that are raised to an even exponent.

Factors which will be taken are:

          9 = 32

Factors which will remain inside the root are:

          3 = 3

To finish this we take the square root of the factors that were taken out. This can be done by dividing their exponents by 2 :

          3 = 3

I hope this helps!

an eight foot ladder leans against a building. if the ladder makes an angle of 60° with the ground, how far from the building is the base of the ladder?

Answers

The distance between the building and the base of the ladder is 4 feet.

What are trigonometric functions?

The trigonometric functions are functions that can be applied to determined the side or measure of internal angle of a given triangle. Given that some required properties are given.

Given that the ladder is 8 feet long, let the distance between the building and the base of ladder be represented by t.

So that;

Cos θ = adjacent/ hypotenuse

Cos 60 = x/ 8

x = 8*Cos 60

  = 8*0.5

x = 4

Thus, the building is 4 feet far to the base of the ladder.

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What is the product of 45?.

Answers

The product of 4 x 5 is 20.

The term product in math is defined as product of two numbers is the result you get when you multiply them together.

Here we need to identify the product of 4 x 5.

As per the definition we all know that the product also known as multiplication is the process of multiplying it by another number.

Here we all know that the multiplication table is used for this onw,

So, here we have to write the multiplication table, that is

=> 4 x 1 = 4

=> 4 x 2 = 8

=> 4 x 3 = 12

=> 4 x 4 = 16

And then the value of

=> 4 x 5 = 20.

Complete Question:

What is the product of 4 x 5?

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A circular plate has circumference 28.3 inches. What is the area of this​ plate? Use 3.14 for π.

Answers

The round plate in the problem has a surface area of 63.754 square inches.

What is Area?

The area is the entire amount of space occupied by a flat (2-D) surface or an object's form. On a sheet of paper, draw a square using a pencil. It has two dimensions. The area of a form on paper is the area that it occupies.

Given, A circular plate has a circumference of 28.3 inches.

Since circumference of a circle = 2*3.14 * r

Where r is the radius

Thus,

circumference  = 28.3

6.28 * r = 28.3

r = 4.506

Radius of circle = 4.506

Since the area of the circle = 3.14 * r * r

Thus,

Area of given circle = 3.14 * 4.506 * 4.506

Therefore, the Area of the given Circular plate is 63.754 square inches.

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How do you write radicals in simplest form?.

Answers

Factor the radicand: If the radicand is not already in the form of a perfect square, you can factor it into its prime factors and pull out any perfect squares from the radicand.

For example, √(36) can be simplified to √(49) = √4 * √9 = 23.

Simplify the exponent: If the radical has an exponent (such as cube root), divide the exponent by the index of the radical. Example ∛64 = ∛(4^3) = ∛4 * ∛4 * ∛4 = 4 *4 *4 =4

Combine like factors: If there are any factors in the radicand that match the exponent, you can combine them and simplify the radical further. For example, √(2235) = √(2^235) = 2√(35) = 2√15 = 2*3 = 6.

It is important to note that not all radicals can be simplified to a whole number or a fraction. In some cases, the radical will be in its simplest form when it is left as an irrational number.

For Example, √2 cannot be simplified further.

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Are all right triangles 30 60 90 triangles?.

Answers

No, All 30-60-90 triangles are right triangles, but not all right triangles are 30-60-90 triangles.

No, not all right triangles are 30-60-90 triangles. A right triangle is a type of triangle that has one right angle (90 degrees) and two acute angles. The other two angles in a right triangle can have any measurement, they don't have to be 30-60-90 degrees.

A 30-60-90 triangle is a special type of right triangle that has specific angle measurements: one angle is 90 degrees (the right angle), one angle is 30 degrees, and one angle is 60 degrees. The ratio of the sides in a 30-60-90 triangle is also fixed, the longest side is opposite the 90-degree angle and it is always twice the length of the shortest side and the medium side is opposite the angle of 60 degrees and it's always the square root of 3 times the length of the shortest side.

For example, if a right triangle has angles of 45 degrees, 45 degrees, and 90 degrees, it is not a 30-60-90 triangle. The angles do not fit the pattern of 30-60-90 degrees.

Therefore, In short, all 30-60-90 triangles are right triangles, but not all right triangles are 30-60-90 triangles. A 30-60-90 triangle is a special type of right triangle with specific angle measurements and side ratios.

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A contruction ite in the hape of a quare i urrounded by a wooden wall 2m high. If tge length of one ide of the wall i 45m. Find the area of the contruction ite

Answers

The construction site area is 2025 square meters, calculated by finding the area of a square with side length 45m.

What is square ?

A square is a two-dimensional geometric shape that has four equal sides and four right angles. It is a type of rectangle where all sides are equal in length and opposite sides are parallel. It can also be defined as a polygon with four sides and four angles, all of which are right angles.

The construction site is in the shape of a square and the wooden wall surrounding it is 2m high and has a length of 45m.

Since the wall encloses a square, the length of one side of the square is equal to the length of the wall (45m).

Therefore, the area of the construction site can be calculated by finding the area of a square with side length 45m.

The formula for the area of a square is side length squared (s^2).

area = 45m x 45m = 2025 square meters.

So , The construction site area is 2025 square meters, calculated by finding the area of a square with side length 45m.

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What is the resulting transformation of: RX=1ο RX=3?

Answers

The graph transformations are discussed below.

What is graph transformation?

Graph transformation is the process by which an existing graph, or graphed equation, is modified to produce a variation of the proceeding graph.

Given is the transformation of a graph.

A function transformation either "moves" or "resizes" or "reflects" the graph of the parent function. There are mainly three types of function transformations:

TranslationDilationReflection

Transformation                Function                  Changes in Position/Size

Translation                 moves the curve                     Change in position

Dilation                Stretches or shrinks the curve     Change in the size

Reflection                   Flips the curve                      Change in position

                           and produces the mirror image.

Therefore, the graph transformations are discussed above.

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Polynomial from Description
Use the information below to answer the questions.
Find the value of a,b,c and d.

Answers

The polynomial function is obtained to be h(x) = -2 (x - 4)(x - 1)²(x + 2), with the values a = -2, b = -4, c = -1 and d = 2.

What is a polynomial?

An algebraic expression known as a polynomial requires that all of its exponents be whole numbers. Any polynomial must have variable exponents that are non-negative integers. Although a polynomial contains variables and constants, we are unable to divide a polynomial by a variable.

The characteristics of the polynomial are -

The zeros are located at 4, 1 (multiplicity of 2) and-2

The end behavior is as follows -

As x reaches negative infinity, f(x) reaches negative infinity.

As x reaches infinity, f(x) reaches negative infinity.

The y-intercept of the function is (0, 16)

The equation of h(x) can be written as -

h(x) = a(x+b)(x+c)²(x+d)

The zeroes of the polynomial can be written as -

x = 4 ⇒ (x - 4)

x = 1 ⇒ (x - 1)

x = 1 ⇒ (x - 1)....Since the multiplicity is 2 so write it two times.

x = -2 ⇒ (x + 2)

So, the equation will be -

y = a (x - 4)(x - 1)(x - 1)(x + 2)

The y-intercept is given as (0,16).

So, substitute the values of x and y with 0 and 16 respectively.

y = a (x - 4)(x - 1)(x - 1)(x + 2)

16 = a (0 - 4)(0 - 1)(0 - 1)(0 + 2)

16 = 2a(-4)(-1)(-1)

16 = 2a × -4

16 = -8a

a = -2

Hence, the equation becomes y = -2 (x - 4)(x - 1)(x - 1)(x + 2).

On graphing the equation it can be seen that -

As x → -∞, f(x) x → -∞

As x x → ∞, f(x) x → -∞

Therefore, the polynomial equation is h(x) = -2 (x - 4)(x - 1)²(x + 2).

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Wbić is the od one out

Answers

The odd one out is the furthest to the right. the Nickels.

The first square is 25 cents. The second square is 25 cents. The third square is 15 cents.

I hope this helps you :D

How much data is within 4 standard deviations of the mean?.

Answers

99.9% of the population is within 4 standard deviations of the mean.

In information, the standard deviation is a degree of the quantity of variation or dispersion of a fixed of values. A low standard deviation indicates that the values tend to be near the implied (additionally called the predicted price) of the set, whilst an excessive preferred deviation suggests that the values are spread out over a wider variety.

Popular deviation can be abbreviated SD, and is maximum commonly represented in mathematical texts and equations by means of the decrease case Greek letter σ (sigma), for the population standard deviation, or the Latin letter s, for the sample general deviation.

The standard deviation of a random variable, pattern, statistical population, statistics set, or possibility distribution is the square root of its variance. it's miles algebraically easier, even though in exercise less sturdy, than the common absolute deviation.

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Need help with this question please

Answers

(5a - 6)(5a + 6)

The correct answer is D

Tessa did 3/5 of her homework problems on Saturday. On Sunday she did 1/3 of what was left plus the last 4 problems. How many problems did Tessa do over the weekend.

Answers

The total problems assigned over the weekend are 15.

What are fractions?

In mathematics, a fraction is used to denote a portion or component of the total. It stands for the proportionate pieces of the whole. Numerator and denominator are the two components that make up a fraction. The numerator is the number at the top, while the denominator is the number at the bottom. The denominator specifies the total number of equal parts in the whole, whereas the numerator specifies the number of equal parts that were taken.

Let us suppose the total number of problems assigned = x.

Given that the problems solved on Saturday is 3/5 of her total questions. This is represented as:

(3/5) x

The remaining problems are:

1 - (3/5) x = (2/5) x

On, Sunday the problems solved are 1/3 of the remaining. This is represented as:

(1/3) (2/5) x

(2/15) x

The remaining problems are:

(1 - 1/3)(2/5 x) = (2/3) * (2/5) x = 4/15 x

Given that the final number of problems remaining are 4, that is:

(4/15) x = 4

x = 4 (15/4)

x = 15

Hence, the total problems assigned over the weekend are 15.

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The absolute value of the difference between 4x and 2 is less than or equal to 2

Answers

The inequality form of the statement is: |4x - 2| ≤ 2. And the lowest value of x that makes this inequality true is x = -1.

To solve for the lowest value of x that makes this inequality true, we need to consider two cases:

If 4x - 2 ≥ 0, then |4x - 2| = 4x - 2, so the equation becomes:

4x - 2 ≤ 2

Adding 2 to both sides, we get:

4x ≤ 4

Dividing both sides by 4, we get:

x ≤ 1

If 4x - 2 < 0, then |4x - 2| = -(4x - 2), so the equation becomes:

-(4x - 2) ≤ 2

Adding 2 to both sides, we get:

-4x + 4 ≤ 4

Dividing both sides by -4, we get:

x ≥ -1

So, the solution to the inequality is -1 ≤ x ≤ 1. This means that any value of x that lies between -1 and 1, inclusive, satisfies the inequality.

So, the lowest value of x that makes this inequality true is x = -1.

"

Complete question

The absolute value of the difference between 4x and 2 is less than or equal to 2.

Write the statement as an inequality, then solve for the lowest value of  x that makes this inequality true. Lowest  value _____

"

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Meena i ordering a taxi from an online taxi ervice. The taxi charge $3. 50 jut for the pickup and then an additional $1. 75 per mile driven. How much would a taxi ride cot if Meena i riding for 6 mile? How much would a taxi ride cot that i m m mile long?

Answers

The cab ride will cost you $14.

Cost is the quantity of money spent by a business or work to produce or create goods or services. It excludes the profit margin markup. Cost is the sum of money spent on making a good or product, as seen from the seller's perspective.

as stated in the inquiry, Meena I'm using an online taxi service to order a taxi.

The cab bills $3.50 for the pickup alone, plus an extra $1.75 for each subsequent mile driven.

The original taxi fare plus the number of kilometres multiplied by the 1.75-cent-per-kilometer cost of the additional drive equals 3.50 + 6 (1.75), which equals $14.

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Is a triangle possible with length of the sides as 10. 2 cm 6. 8 cm and 4. 6 cm?.

Answers

Yes, it is possible to draw a triangle.

This will be done by the property: the sum of two sides of a triangle should be more than the third side.

(4.6cm + 6.8cm) =10.2cm

11.4cm = 10.2cm

LHS>RHS

A triangle is possible.

A triangle is a polygon with three edges and 3 vertices. The terminology for categorizing triangles is more than two thousand years vintage, having been defined on the first actual page of Euclid's elements.

In Euclidean geometry, any three factors, while non-collinear, decide a completely unique triangle and simultaneously, a unique plane (i.e. a -dimensional Euclidean space). In different words, there's best one plane that consists of that triangle, and every triangle is contained in some plane. If the entire geometry is only the Euclidean plane, there is the best one plane and all triangles are contained in it; however, in higher-dimensional Euclidean spaces, this is not real. this text is ready triangles in Euclidean geometry, and in particular, the Euclidean plane, except wherein otherwise stated.

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What is the plane by 3 points?.

Answers

Three points can define the two distinct vectors AB and AC (A, B, and C). The two vectors' cross product, which they both lie on, may be utilized as the plane's normal.

It is logical to assume that this is the case since a plane contains precisely two linearly independent vectors since it has a dimension of two. If the three points were collinear, there wouldn't be two linearly independent vectors; instead, the origin and tips of the two vectors are the three points.

The three points that make up a plane in a three-dimensional space can be used to define it as long as they are not on the same line. On a plane, there exist at least three non-collinear points. A line that connects any two locations in a plane is also considered to be a part of the plane. A line is created at the place of intersection when two planes clash.

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I need help on this!

Answers

One must first divide a compound inequality into two other inequalities before solving it.

Compound inequalities: how to solve them?One must first divide a compound inequality into two other inequalities before solving it. Choose between a union of sets ("or") and an intersection of sets for the solution ("and"). the graph and the inequalities should then be solved.Inequalities that include the words "and" or "or" connecting them are referred to as compound inequalities. Examples include It must be larger than -2 and less than or equal to 5. "x 3" or "is more than or equal to 3 or less than -4" are equivalent expressions. Take note of the two inequality indications that each of these disparities has.One must first divide a compound inequality into two other inequalities before solving it.      

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(121x^6 y^8)^1/2 PLEASE HELP ASAP

Answers

Answer:   [tex]11\text{x}^{3}\text{y}^{4}[/tex]

=====================================

Work Shown:

[tex]\left(121\text{x}^6\text{y}^8\right)^{1/2}\\\\\left(121\right)^{1/2}*\left(\text{x}^6\right)^{1/2}*\left(\text{y}^8\right)^{1/2}\\\\\sqrt{121}\text{x}^{6*(1/2)}\text{y}^{8*(1/2)}\\\\11\text{x}^{3}\text{y}^{4}\\\\[/tex]

Therefore,

[tex]\left(121\text{x}^6\text{y}^8\right)^{1/2}=11\text{x}^{3}\text{y}^{4}\\\\[/tex]

--------------

Explanation:

The exponent of 1/2 represents a square root. This is how [tex](121)^{1/2}[/tex] turned into [tex]\sqrt{121}[/tex] which then simplified to 11.

As for the variable terms, we multiply that outer exponent 1/2 with each exponent inside the parenthesis. Think of it like the distribution rule. It's not really distribution, but similar.

Recall that [tex](a^b)^c = a^{bc}[/tex]

(a) Iff:R→R is defined by f(x) = x² +3, find the function g such that (fog)(x)=9x² -12x+7.​

Answers

Step-by-step explanation:

(f○g)(x) = f(g(x))

it simply means that we put the expression of g(x) into ask places of x in f(x).

(f○g)(x) = g(x)² + 3

therefore,

g(x)² + 3 = 9x² - 12x + 7

g(x)² = 9x² - 12x + 4 = (a + b)² = a² + 2ab + b²

9x² = a² tells us that a = ±3x

4 = b² tells us that b = ±2

which signs of a and b do we need ?

-12x = 2ab gives us the answer

-6x = ab

that means the signs need to be opposite and we have 2 possible solutions

g(x) = 3x - 2

or

g(x) = -3x + 2

Danny wants to hang a mirror that is 12 3/4 inches wide in the center of a wall that is 25 inches wide.How much wall space should be left on each side of the mirror?

Answers

The width that is left on each side of the mirror is 13 1/4 inches.

How to Hang a Heavy Mirror?

Mirrors, due to their size, weight, and combination of robustness and fragility present a challenge for drywall and plaster walls.

The mounting gear for most new mirrors is already included, but it is important to take great consideration when choosing the anchors, screws, and bolts that will connect the mirror to the wall.

Use the following guidance on how to hang a heavy mirror safely so you may update your space while safeguarding your walls and decor after deciding what kind of wall you have and selecting the appropriate materials.

25 - 12 3/4 = 13 1/4

5 1/8 inches broad on each side of the mirror when 13 1/4 are split by two.

5 1/8 + 5 1/8 + 14 3/4 = 25.

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solve for the point of the intersection using substitution

4x+2y=10
2x=26+2y

Answers

First, solve the equation for one of the variables in the pair of equations to be solved using substitution method x = 2/13, y = 52

What is the approach to substitution?

The substitution method is one algebraic approach to solving a linear system. By substituting one y-value for another, the substitution method works. We will illustrate this with an example. Since y = y, we can use y in the first equation instead of the second one.

How to find the calculation?

                                      4x+2y=10⋅2x=26+2y

Take the first equation, for example. For a result of 20, multiply 10 by 2.

                                     4x+2y=20x

20 x both sides should be subtracted.

                                    4x+2y−20x=0

Get 16x by combining 4x and 20x.

                                  −16x+2y=0

The second equation is an example. For a result of 20, multiply 10 by 2.

                                      20x=26+2y

From both sides, subtract 2y.

                                          20x−2y=26

First, solve the equation for one of the variables in the pair of equations to be solved using substitution. Replacing that variable in the other equation with the result follows.

                                       −16x+2y=0,   20x−2y=26

By placing x on the left side of the equal sign, isolate x from one of the equations and solve it for x.

                                                −16x+2y=0

In the equation, deduct 2y from both sides.

                                     −16x=−2y

Subtract 16 from both sides.

                                          x= − 16/ 1(−2)y

16 divided by 2y is the answer.

                                         x= 8  / 1 y

The second equation, 20x2y=26, should now read 8 y instead of x.

                                  20×( 8 /1  )y−2y=26

multiply 20 times 8 y.

                          2  / 5 ​ y−2y=26

Boost 2y by 2.5 years.

                                 2 /1  y=26

2 times both sides will give you y=52.

In the formula x = 81y, change y to 52. You can solve for x directly because the resulting equation only has one variable.

                                        x= 8 /1  ×52

52 x 8 /1 is the multiplication.

                                   x= 2 /13

The system has now been resolved substitution equation are

x = 2/13, y=52

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hi please help thanks

Answers

The letter on the number line that represents the given number is B.

What is a number line?

A number line is a straight line which extends from -∞ to -∞, on which the position or location of all directed numbers can be identified.

Directed numbers are numbers which have either a negative or positive sign. Examples include; -4, -1 2/3. 9 etc. Therefore all numbers can be located on a number line.

Considering the given question, to locate the position of 1 85/100. The whole number make us to understand that its position falls between 1 and 2. And the fraction part shows that the number is closer to 2 more than 1.

Therefore, the letter on the number line that represents 1 85/100 is B.

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Is 36 − − √ rational or irrational?.

Answers

Yes, thirty-six is a rational number. It is represented as a fraction of integers, so it is called an integer and a whole number.

A rational number is defined as the number that can be expressed as a fraction, P/Q and assuming that the denominator of the fraction is not zero, i.e., Q ≠0, and that both the numerator and denominator are integers. In case of an irrational numbers, they cannot be expressed as a fraction. We can identify a number is rational or irrational :

Rational number has terminating or repeating decimal, ; for example, 1/5 = 0.2. Irrational number has non-terminating and non-repeating decimal, it is irrational, for example, 10/3 = 3.33333..

Now, we have a number say, x = 36 and we have to check it is rational or irrational number. Number 36 can be written as 36/1 = P/Q and 1 ≠0 like Q ≠ 0. So, x is a rational number because it can be expressed as the quotient of two integers.

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Complete question:

Is 36 is a rational or irrational?

4 less than the product of 1 and x

Answers

4 less than the product of 1 and x is x - 4.

How to represent word expression in algebraic expression?

An algebraic expression is a variable expression described using its terms, and operations on the terms.

In other words, algebraic expression are mathematical expressions where variables and constant are combined using operations such as subtraction, addition, multiplication etc.

Therefore, let's express the word expression in algebraic expression,

Hence, 4 less than the product of 1 and x is represented as follows:

(1 × x) - 4

x - 4

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Which is a correct expansion of (4x + 1)(2x² - 2)?
A. 4x 2x² + 4x
B. 4x 2x2 + 4x
C. 4x 2x² + 4x
(-2) +1.2x²+1 (-2)
(-2) +1.4x+1 (-2)
(1) + 1.2x² +1 (-2)

Answers

[tex](4x+1)(2x^2 -2) \\\\[-0.35em] ~\dotfill\\\\ \begin{array}{llll} 2x^2-2\\ \times ~~ 4x\\\cline{1-1} 8x^3-8x \end{array}~~ + ~~ \begin{array}{llll} 2x^2-2\\ \times ~~ 1\\\cline{1-1} 2x^2-2 \end{array}\qquad \implies \boxed{8x^3+2x^2-8x-2}[/tex]

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