A matrix A has x rows and x+5 columns. B has y rows and 11−y columns. Both AB and BA exist. Find x and y.

The number √ 54 is an irrational number.

A number which can be written in the form of fraction p / q , where q is non zero, are called Rational numbers.

Given that;

The number is,

⇒ √54

Now,

⇒ √ 54 = 7.348469...

Hence, By definition of an irrational number,

It is an Irrational number.

Learn more about the irrational number visit:

https://brainly.com/question/20400557

#SPJ1

Answer: B

Step-by-step explanation:

2/3 = 1/3 and 1/4 is already there

Hope this helps !

Answer:

Step-by-step explanati

Your answer would be A.

Answer:A

Step-by-step explanation:

Answer: C

Step-by-step explanation:

The given linear relationship slope of the line is D) 6.

What is slope?

An indication of how steep a line is is its slope. When calculating slope mathematically, "rise over run" is used (change in y divided by change in x). The ratio of how much y grows as x grows by a certain amount is known as the slope of a line. A line's slope, or the amount by which y rises as x rises, indicates how steep a line is. The slope is constant (the same) along the line.

Here from given tables lets take any two points to find slope, then

[tex](x_1,y_1)=(0,-6) and (x_2,y_2)=(1,0)[/tex]

Now using slope formula [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex] then

=> m = [tex]\frac{0-(-6)}{1-0}[/tex]

=> m =[tex]\frac{6}{1}[/tex]

=> m = 6.

Hence the slope of the given table is D)6.

To learn more about slope refer the below link

https://brainly.com/question/16949303

#SPJ1

Answer:

Step-by-step explanation:

t1= 60/57

t2=60/40=1.5

v= (57+40)/2= 48.5

Answer:

TQN

Step-by-step explanation:

2051/2 miles,The plane is travelling in a different direction from its original position, and the distance from the original position can be calculated by using the Law of Cosines.

To learn more about the Law of Cosines refer to:

https://brainly.com/question/4372174

#SPJ1

The equation of the line with a slope of 2/3 passing through (-4, 1) is y = (2/3)x + 11/3

An equation is an expression relating two or more numbers and variables.

The slope - intercept form of a linear equation is:

y = mx + b

Where m is the rate of change(slope) and b is the y intercept.

The equation of a line passing through (x₁, y₁) with a slope of m is given by:

y - y₁ = m(x - x₁)

The line has a slope of 2/3 and pass through point (-4, 1). Hence:

y - 1 = (2/3)(x - (-4))

y - 1 = (2/3)(x + 4)

y = (2/3)x + 11/3

The equation of the line is y = (2/3)x + 11/3

Find out more on equation at: https://brainly.com/question/2972832

#SPJ1

Since the midsegment of each trapezoid is parallel to each base and is half, it has a GH value of 0.85.

Having at least one pair of parallel sides, a trapezoid is a quadrilateral in American and Canadian English. In the UK and other nations that speak English, it is referred as as the Trapezium. A trapezoid is a convex quadrilateral according to Euclidean geometry. Its parallel sides make up the trapezoid's base. The trapezoid, a convex quadrilateral, is defined by an identical pair of opposite sides that are parallel to one another. On paper, the two-dimensional trapezoid shape seems like a table. The term "quadrilateral" in Euclidean geometry refers to a polygon with four sides and four vertices.

given

A trapezoid's midsegment runs parallel to each base and is half as long as all of the bases combined.

1/2 * 3x - 6 = 2x

3x - 6 = 4x

= -6 = 7x

x = 0.85

Since the midsegment of each trapezoid is parallel to each base and is half, it has a GH value of 0.85.

To know more about trapezium visit:

https://brainly.com/question/8208556

#SPJ1

Answer:

x-intercept = -2; y-intercept = -7

Step-by-step explanation:

The probability of selecting a student from the class who is a pet owner or prefers cats to dogs is; 0.4

In probability, If events A and B are not mutually exclusive, then the probability of A or B is expressed as;

p(A or B) = p(A) * p(B).

Total number of students = 26

Total number of students that are pet owners = 18

Total number of students that prefers cats to dogs = 26 - (8 + 3) = 15

Thus;

P(pet owner) = 18/26

P(prefers cats to dogs) = 15/26

P(Pet owner or prefers cats to dogs) = (18/26) * (15/26)

= 0.4

Read more about Probability of selection at; https://brainly.com/question/251701

#SPJ1

(a) the value of a material weighing 5 kg is 31.25

(b)the value of a material weighing 50 kg is 3125

(c) the weight of a material worth 720 is 24 kg

Variation is a relation between a set of values of one variable and a set of values of other variables

If the value Q of a material is directly proportional to the square of its weight W. We can write:

Q α W²

Q = kW²   (where k is constant of proportionality)

If a material weighing 20 kg is worth 500, we have:

Q = kW²

500 = k × 20²

500 = 400k

k = 500/400

k = 5/4

k = 1.25

(a)the value of a material weighing 5 kg

Q = kW²

Q = 1.25 × 5² = 31.25

(b)the value of a material weighing 50 kg

Q = kW²

Q = 1.25 × 50² = 3125

(c)the weight of a material worth 720

Q = kW²

720 = 1.25 × W²

W² = 720/1.25

W² = 576

W = √576

W = 24 kg

Learn more about variation on:

brainly.com/question/2375770

#SPJ1

The trapezoid is a form of quadrilateral that has at least one parallel sides. The trapezoid here is given by the mentioned coordinates.

A point is a dot on a sheet of paper or in a plane. There are no lengths, widths, or heights in a point. It establishes a plane's position or location.

It is possible to find any point in a 2D plane or 3D space using coordinates, which are ordered pairs of points. You may have observed the use of grids in mathematics.

Select a point on the graph according to the given coordinates. Connect all the points on the graph using a line segment. The shape formed by joining all the points together is knows as a trapezoid.

Learn more about coordinates here:

https://brainly.com/question/27749090

#SPJ1

So on solving the provided question, we can say that  y= |x| makes a starlight line, this equation is a linear function.

Two distinct but related concepts are referred to as linear functions in mathematics. A polynomial function of degree 0 or 1 is a linear function in calculus and related subjects if its graph is a straight line. Any function that depicts a straight line on a coordinate plane is said to be linear. For instance, y = 3x - 2 is a linear function since it depicts a straight line on the coordinate plane. f(x) = 3x - 2 can be used to represent the function since f(x) can be linked to y.

equation represents a linear function is that polynomial function of degree 0 or 1 is a linear function in calculus and related subjects if its graph is a straight line.

so, here  y= |x| makes a starlight line, this equation is a linear function.

To know more about linear function visit:

https://brainly.com/question/29205018

#SPJ1

The slope of the line that goes through the points (0, 2) and (1, -1) is -3.

What is the slope of the line?

The slope of a line is a number that describes the steepness of a line and the direction it is heading. It is also known as the "rise over run" or the "rate of change" of a line. The slope of a line is typically represented by the letter "m" and is found using the formula:

slope = (y2 - y1) / (x2 - x1)

To find the slope of a line, you need two points on the line (x1, y1) and (x2, y2) and substitute their coordinates into the slope formula.

To find the slope of a line, we use the formula:

slope = (y2 - y1) / (x2 - x1)

In this case, we have two points: (0, 2) and (1, -1). To find the slope between these two points, we can substitute their coordinates into the slope formula:

slope = (-1 - 2) / (1 - 0)

slope = -3

Hence, the slope of the line that goes through the points (0, 2) and (1, -1) is -3.

To learn more about the  slope of the line visit,

https://brainly.com/question/3493733

#SPJ1

The theoretical probability of landing on pink is 3/10, and the experimental probability is 30%. Therefore, option D is the correct answer.

Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.

We know that, probability of an event = Number of favourable outcomes/Total number of outcomes

Given that, a spinner with 4 equal sections is spun 20 times.

The frequency of spinning each color is recorded in the table below.

Outcome         Frequency

   Pink                    6

   White                  3

   Blue                    7

   Orange               4

Probability of landing on color pink is 6/20

= 3/10

= 3/10 ×100

= 30%

Therefore, option D is the correct answer.

To learn more about the probability visit:

https://brainly.com/question/11234923.

#SPJ1

The answer for y + 6 = -2 (x + 1) the equation in the general form is y - 2x = -8.

What is equation?

Mathematically, an equation can be defined as a statement that supports the equality of two expressions, which are connected by the equals sign “=”.

The equation is represented in the general form Ax+By=C.

The given equation is -

y + 6 = -2 (x + 1)

Simplify further -

y + 6 = -2 (x + 1)

y + 6 = -2x -2

y - 2x = -2 - 6

y - 2x = -8

Therefore, the equation is y - 2x = -8.

To learn more about equation from the given link

https://brainly.com/question/25976025

#SPJ1

The probability of getting a household income of $75,000 in Maryland is 0.3989.

The normal distribution formula is given by:

P(x) = 1/√(2πσ^2) * e^[-(x-μ)^2 / (2σ^2)]

Where,

P(x) - Probability of getting a household income of x

μ - Mean annual household income in Maryland

σ - Standard deviation of annual household income in Maryland

Assuming that the mean annual household income in Maryland is $75,000 and the standard deviation is $10,000, the probability of getting a household income of $75,000 can be calculated using the formula given above.

P(75000) = 1/√(2π10000^2) * e^[-(75000-75000)^2 / (2*10000^2)]

= 0.3989 * e^(0)

= 0.3989

Therefore, the probability of getting a household income of $75,000 in Maryland is 0.3989.

Learn more about Probability here:

https://brainly.com/question/30034780

#SPJ4

Equations now take the shape:

  [1]    3x - 4y = 24

  [2]    3x + 4y = 6

To learn more about infinitely many solutions refers to:

brainly.com/question/28353891

#SPJ1

Answer: (0,10) and (3,1)

Step-by-step explanation:

Before I solve the system, I am going to rewrite it to make it easier for me to understand it.

[tex]y=(x-3)^2+1\\y=-3x+10[/tex]

Notice that f(x) and g(x) have been changed into y. The reason is because f(x) and g(x) are the same and stand for y, but we only use f and g to distinguish between the 2 equations. We can use equal values to solve.

[tex](x-3)^2+1=-3x+10[/tex]              [exponent]

[tex]x^2-6x+9+1=-3x+10[/tex]        [add both sides by 3x]

[tex]x^2-3x+10=10[/tex]                        [subtract both sides by 10]

[tex]x^2-3x=0[/tex]                                  [factor]

[tex]x(x-3)=0[/tex]

Notice that x=0 and x-3=0. This means the solutions are x=0 and x=3.

To find the actual full solution, we have to plug those points back into the original equations.

[tex]-3(0)+10=0+10=10\\-3(3)+10=-9+10=1[/tex]

Therefore, the solutions to this system are (0,10) and (3,1).

Answer:

[tex]\frac{35}{12}[/tex]

Step-by-step explanation:

The tangent of an acute angle in a right triangle is defined as the ratio of the length of the side opposite the angle to the length of the side adjacent to the angle.

Using substitution method to solve the system of linear equation, the number of children is 90 and adults is 93.

In mathematics, a system of linear equations is the collection of two or more linear equations that share the same variables. The maximum power of the variable in the linear equations in this situation is 1, making them first-order equations. A linear equation may have one, two, or three variables. We can therefore create linear equations with n variables.

To solve this problem, we have to define our variables and then write the equations.

Let;

x + y = 183 ...eq(i)

1.75x + 2.5y = 390 ...eq(ii)

solving both equations

From equation (i)

x + y = 183

x = 183 - y ...eq(iii)

Put equation (iii) into equation (ii)

1.75(183 - y) + 2.5y = 390

y = 93

Put y = 93 into equation (i)

x + 93 = 183

x = 90

The number of child is 90 and adult is 93

Learn more on system of linear equation here;

https://brainly.com/question/13729904

#SPJ1

1. y = -1.15x + 102.8 is the equation of the line of best fit.

2. Using the line of best fit's equation, the estimated price is: $62.55.

A mathematical statement that has a "equal to" symbol between two expressions with equal values is called an equation.

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.

We have LHS = RHS (left hand side = right hand side) in every mathematical equation.

To determine the value of an unknown variable that represents an unknown quantity, equations can be solved.

A statement is not an equation if it has no "equal to" sign.

According to our question-

1. Making use of the two points (20, 80) and (72, 20)

Slope (m) is equal to change in y/change in x, or (80 - 20)/(20 - 72) = 60/-52.

Slope is -1.15 meters.

Change y - b = m to m = -3 and (a, b) = (72, 20). (x - a)

y - 20 = -1.15(x - 72) (x - 72)

y - 20 = -1.15x + 82.8

y = -1.15x + 82.8 + 20

y = -1.15x + 102.8

The best line of fit is the equation y = -1.15x + 102.8.

2. To calculate the monthly heating expense, y, for a month with an average temperature of 35°F (x), enter x = 35 into the formula: y = -1.15x + 102.8.

y = -1.15(35) + 102.8

y = 62.55

The estimated monthly expenditure is $62.55.

learn more about equations click here:

brainly.com/question/2972832

#SPJ1

The requried pair of functions which are inverse of each other is f(x) = 13x - 7 and g(x) = x + 7 / 13.

Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.

Here,
(A)

Given function,
f(x) = x / 3 + 10
Its inverse function is given as,
f(x) - 10 = x/3
x = 3(f(x) - 10)
change x = g(x) and f(x) = x
g(x) = 3[x - 10]

Similarly,
Inversfunciton,
B. g(x) = 9/x - 5
C. g(x) = x + 7 / 13
D. g(x) = x³/4

Thus, the requried pair of functions which are inverse of each other is f(x) = 13x - 7 and g(x) = x + 7 / 13.

Learn more about function here:

brainly.com/question/21145944

#SPJ1

1.125 cups of frozen mango is needed to serve one

A smoothie recipe contains 2 1/4 cups of frozen mango

This recipe can serve a total number of two people

The first step is to change the mixed fraction to an improper fraction

2 1/4

9/4

The number of cups of frozen mango needed to serve one person is

9/4 ÷ 2

9/4 × 1/2

= 9/8

= 1.125

Hence the number of cups of frozen mango required to serve one person is 1.125

Read more on recipe here
https://brainly.com/question/7154291

#SPJ1

The integral represents a graph of the signed area, and the geometry is calculated. The area is found to be 100 units².

A plane that is created when two perpendicular coordinate axes cross each other is known as a cartesian plane. Everywhere in the Cartesian plane, the functions define the boundaries of regions with regular geometrical patterns. The right triangle and other regular regions are good examples of how the area of a region may be computed using the geometry of the region.

The given function is [tex]\int\limits^{10}_{-10} {|x|} \, dx[/tex].  The function of this integrand is defined as f(x)=|x| with -10 ≤ x ≤ 10. Now, the graph is drawn for this function.

From the graph, we can tell the base and height of the two right-angle triangles are 10 units and 10 units. Then, the area is,

[tex]\begin{aligned}A&=2\left(\frac{1}{2}\times b\times h\right)\\&=2\times \frac{1}{2}\times 10 \times 10\\&=\mathrm{100\;{units}^2}\end{aligned}[/tex]

The area can also be calculated by solving the integrals,

[tex]\begin{aligned}\int\limits^{10}_{-10} {|x|} \, dx &=\int\limits^0_{-10} {-x} \, dx +\int\limits^{10}_0 {x} \, dx\\&=\left[\frac{x^2}{2}\right]^{0}_{-10} +\left[\frac{x^2}{2}\right]^{10}_{0}\\&=\frac{1}{2}(100+100)\\&=\mathrm{100\;units^2}\\\end{aligned}[/tex]

The required answer is 100 units².

To know more about the Cartesian plane:

https://brainly.com/question/28574364

#SPJ4

Answer:

C. 21.35 inches

Step-by-step explanation:

circumference = πd

circumference = 3.14 × 6.8 inches

circumference = 21.35 inches