PLEASE HELP ME WITH THIS

The probability that a student chosen at random plays both football and cricket is 7/20.

The probability that a student chosen at random plays both football and cricket can be found by using the formula for conditional probability:

P(football and cricket) = P(football | cricket) * P(cricket), where P(football | cricket) is the probability of playing football given that the student plays cricket, and P(cricket) is the probability of playing cricket.

Out of the 21 students who play cricket, 14 of them play football as well, so P(football | cricket) = 14/21.

The probability of playing cricket is P(cricket) = 21/40 since there are 40 students in total and 21 of them play cricket. So, the probability that a student chosen at random plays both football and cricket is P(football and cricket) = (14/21) * (21/40) = 14/40 = 7/20.

Therefore, the main answer is the probability that a student chosen at random plays both football and cricket is 7/20.

For more questions like Probability click the link below:

https://brainly.com/question/30034780

#SPJ4

Correct question:

In a class, there are 10 students who play football and cricket

7 who do not play football or cricket

14 students who play football

21 students who play cricket

find the probability that a student chosen at random plays football and cricket.

The integral of a vector field along a curve can be calculated using the concept of line integrals.

The line integral of a vector field F along a curve C is defined as the sum of the dot product of the vector field and the infinitesimal change in position along the curve.

In the case of the vector field F(x,y) = i + xj, the line integral from point A to point B can be calculated as follows:

∫_C F(x,y) • dr = ∫_A^B (i + xj) • dr = ∫_A^B i dx + xj dx

Here, dr represents the infinitesimal change in position along the curve C, and the integrand represents the dot product of the vector field and the change in position.

The line integral can be evaluated using numerical methods or using Green's theorem, which relates the line integral of a vector field along a closed curve to the double integral of the curl of the field over the region enclosed by the curve.

To know more about vector field click here:

https://brainly.com/question/24332269#

#SPJ11

The base of the ramp is 45.34 inches long.

In mathematics, trigonometric functions are real functions that relate an angle of a right-angled triangle to ratios of two side lengths. The six trigonometric functions are Sine, Cosine, Tangent, Secant, Cosecant, and Cotangent.

Given here: Height of the tramp= 13 in. and angle of elevation at the base =16°

Now we know that Tan 16= 13/base ( tan ∅ = perpendicular/base)

∴ Base= 13/tan 16

           =45.34 inches

Hence, The base of the ramp is 45.34 inches long.

Learn more about the trigonometric ratios here:

https://brainly.com/question/6904750

#SPJ1

The required number of students could be participating in the art show are 110.

Canvas is a very sturdy plain-woven fabric that is used to make sails, tents, marquees, backpacks, shelters, supports for oil paintings and other goods that require toughness, as well as in shoes, handbags, and other items of fashion.

The college purchases 465 canvases. They want to provide teachers 24 canvases. For every student, they ordered at least 4 canvases.

Then, it can be expressed as

Let the number of students = x

4x + 24 = 465

4x = 441

x = 110.25

Thus, there are 110 students in the school.

To know more about Expression visit:

brainly.com/question/14083225

#SPJ1

The required number of miles he walked in one hours is  3(2/3) miles.

Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is travelling along a path. In other words, velocity is a vector, whereas speed is a scalar value.

We have,

ella walked 11 miles in 3 hours

We need to find how many miles he walked in 1 hour, Which is called as Speed.

= 11/3 = Speed

= 3(2/3) miles

Thus, required Miles are 3(2/3).

To know more about Miles visit:

brainly.com/question/23245414

#SPJ1

The mean absolute deviation is 4.06.

The average of a group of variables is referred to as the mean in mathematics and statistics. There are several methods for calculating the mean, including simple arithmetic means (adding the numbers together and dividing the result by the number of observations), geometric means, and harmonic means.

We have data set,

S = {14, 14, 6, 6, 10, 10, 2, 18}

The mean = 78/8

= 9.75

The mean absolute deviation,

= The absolute sum {(14 -9.75) + (14 -9.75) + (6 -9.75) + (6 -9.75) + (10 -9.75) + (10 -9.75) + (2 - 9.75) + (18 - 9.75)} / 8

= 32.5 / 8

= 4.06

Therefore, the value is 4.06.

To learn more about the mean;

brainly.com/question/13451489

#SPJ1

This double integral evaluates to a value of 2/3 x

What is double integral?

Double integral is a type of integration which involves the integration of two variables. It is used to calculate the area or volume of a function of two variables. This type of integration is used to solve problems in areas such as physics, engineering, probability and statistics. Double integration can be used to calculate the center of mass of a two-dimensional object, or the moments of inertia of a two-dimensional object. In its most basic form, this type of integration involves the calculation of a limit where two variables are integrated with respect to each other.

To evaluate the double integral, one must use the formula for the area of a two-dimensional region: ∫∫f(x, y)dA = ∫∫f(x, y)dxdy. The limits of integration of the region D must also be taken into account. Thus, the double integral can be evaluated as follows:

∫∫(x^2-1)dA = ∫ 0 to 1

∫ 0 to x (x^2-1)dx dy = 2/3 x

This double integral evaluates to a value of 2/3 x

To know more about integral click-

brainly.com/question/14563964

#SPJ4

Answer:

6x + 96

Step-by-step explanation:

X represents 1 ticket, and since there are 6 tickets you multiply them, which equals to 6x.

Next, they bout travel insurance that cost $16 for one ticket, and since there are 6 tickets, multiply 16 x 6.

The total cost is the ticket price and the travel insurance so it would be:

6x + 96

There are no values of x that would make both equation 1 and equation 2 true at the same time.

To solve for the variables x in this system of linear equations, we need to find the values of x that satisfy both equation 1 and equation 2 simultaneously.

One way to do this is to use the substitution method. We can isolate x in equation 1 and substitute it into equation 2.

Starting with equation 1:

22x - 1 = -23

Adding 1 to both sides:

22x = -22

Dividing both sides by 22:

x = -1

Now, substitute x = -1 into equation 2:

11x + 121 = -1

Substituting x = 1:

11(-1) + 121 = -1

Expanding:

-11 + 121 = -1

Simplifying:

111 = -1

Since 111 is not equal to -1, we can conclude that there is no solution to the system of linear equations. In other words, there are no values of x that would make both equation 1 and equation 2 true at the same time.

Learn more about Linear equations here:

https://brainly.com/question/25858757

#SPJ4

If the numbers cannot be repeated, there can be 5040 possible codes. The probability to select the correct code in first try will be 1/5040. If the digits can be repeated then there can be 10000 possible combinations.

The code can be of digits between 0 to 9. Hence we have a choice of 10 digits

If the number cannot be repeated then the first digit of the code can be selected in

10 ways.

Similarly the second, third and fourth can be selected in 9, 8, and 7 ways.

Hence the code can be formed in

10 X 9 X 8 X 7 ways

= 5040ways

Now out of these 5040 codes, there can be only one code.

The probability to select it in first try i

1/5040

If the digits can be repeated, then we can use 10 digits for every specific number. Hence there can be

10 X 10 X 10 X 10 ways

= 10000 codes.

To learn more about Combinations visit

https://brainly.com/question/4318885

#SPJ4

Translating the given sentence into a variable expression, we have:

2n - 5.

we have:  n - (5 - n)

Simplifying the expression, we can use the distributive property and combine like terms:

n - 5 + n = 2n - 5

So the simplified expression is 2n - 5.

A variable is a symbol or letter used to represent a value or set of values in a mathematical expression or equation. The value of a variable can change and can be determined by the problem or context. For example, in the equation y = 2x + 3, x is a variable that represents an unknown value, while y represents a related value that depends on the value of x. Variables are used to represent unknown or changing quantities and can be used to model real-world situations in mathematics.

Learn more about functions here.

https://brainly.com/question/12431044

#SPJ1

Answer:

The answer is 912

Step-by-step explanation:

The number of hours Natalie worked babysitting last week is 6hrs and the number of hours she worked landscaping last week is 2 hrs.

Let x be the number of hours Natalie worked babysitting and y be the number of hours she worked landscaping. Then, the total earnings were 11x + 10y = $86.

Also, x = 3y, because she worked 3 times as many hours babysitting as she did landscaping.

Substitute x = 3y into the first equation:

11(3y) + 10y = $86

Expanding the first term we get,

33y + 10y = $86

Combining terms,

43y = $86

Dividing both sides by 43 we get,

y = $2

So, Natalie worked y = 2 hours of landscaping.

To find the number of hours she worked babysitting, substitute y = 2 into x = 3y as follows -

x = 3(2) = 6

So Natalie worked x = 6 hours babysitting.

Read more equations:

brainly.com/question/29115752

#SPJ4

The value of the given expression will be 9 x 10^7 m^2/s^2 min^2.

We can simplify the expression as follows:

First, simplify the units of the second term:

(2.50 x m/s^2) (1000 km/1.00 x 10^3 m) = (2.50 x m/s^2) (1000 x 10^3 m/km) = 2500 x m^2/s^2

Next, simplify the units of the third term:

(60.0 s/1.00 min)^2 = (60.0 s)^2/1.00 min^2 = 3600 s^2/min^2

Finally, multiply the two terms to obtain the final expression:

2500 x m^2/s^2 x 3600 s^2/min^2 = 9 x 10^7 m^2/s^2 min^2.

So, the expression evaluates to 9 x 10^7 m^2/s^2 min^2.

To know more about expression, here

https://brainly.com/question/16804733

#SPJ4

The cost of putting sod in the yard is $981.75.

A trapezium is a quadrilateral with four sides where two sides are parallel to each other.

We have,

Area of a trapezium = 1/2 x (sum of the two bases) x height

Now,

Base = 80 ft and 107 ft

Height = 42 ft

Now,

Area = 1/2 x (80 + 107) x 42

Area = 1/2 x 187 x 42

Area = 187 x 21

Area = 3927 ft²

Now,

$0.25 = ft²

Multiply 3927 into both sides.

3927 x 0.25 = 3927 ft²

$981.75 = 3927 ft²

Thus,

$981.75 is the cost of putting sod in the yard.

Learn more about trapezium here:

https://brainly.com/question/22607187

#SPJ1

The x and y-intercept of the function 2x - 3y = 6 are (3,0) and (0,-2) respectively.

Given the function in the question.

2x - 3y = 6

To determine the x-intercept, replace y with 0 and solve for x.

2x - 3y = 6

2x - 3( 0 ) = 6

2x = 6

2x/2 = 6/2

x = 3

Therefore, the x-intercept is (3,0).

Replace x with 0 and solve for y to determine the y-intercept.

2x - 3y = 6

2(0) - 3y = 6

-3y = 6

-3y / -3 = 6 / -3

y = 6 / -3

y = -2

Therefore, the y-intercept is (0,-2).

Learn more about the intercepts of graphs here: https://brainly.com/question/29108532

#SPJ1

the orthogonal matrix for an unknown scalar α so its determinant is 1. then the value of unknown α=-1

We are aware that the number of rows and columns in a square matrix is equal. If the transpose of a square matrix with real numbers or elements equals the inverse matrix, the matrix is said to be orthogonal. Or, we may argue that a square matrix is an orthogonal matrix if the product of the square matrix and its transpose results in an identity matrix.

We know that AA'=I

[tex]\left[\begin{array}{ccc}7&0&a\\0&b&0\\-12&0&c\end{array}\right] \left[\begin{array}{ccc}7&0&a\\0&b&0\\-12&0&c\end{array}\right] =\left[\begin{array}{ccc}1&0&0\\0&1&0\\0&0&1\end{array}\right][/tex]

so, after computing a= 4 , b=1 and c =-7

and the value of unknown α=-1

The complete question is :-

Complete the orthogonal matrix for unknown a so its determinate is 1.

O = a[[7,0,?][0,?,0][-12,0,?]]

learn more about the orthogonal matrix.

https://brainly.com/question/29972346

#SPJ4

To write an exponential function in the form y = ab^x that goes through the points (0,11) and (2,396), we can use the fact that the exponential function is defined as y = ab^x, where a is the initial value and b is the growth factor.

First, we can find the growth factor by using the following equation: b = y2/y1.

In this case: b = 396/11 = 36

Next, we can use the point (0,11) and the growth factor to find the value of a.

Since we know that y = ab^x, we can substitute the point (0,11) and the growth factor into the equation:

11 = a(36)^0

a = 11

So, the exponential function that goes through the points (0,11) and (2,396) is: y = 11 * 36^x

It is important to note that the above function will pass through the points (0,11) and (2,396) but it may not pass through any other points. It is also a good practice to check the function by substituting the point (0,11) and (2,396) to confirm it gives the correct output.

Annabeth's bi-weekly gross earnings, including overtime compensation, would be $1,097.56.

Amount is a term used to describe a quantity or size of something. It is used to refer to a number of objects, items, or people, as well as a measure of money, time, or distance. Amount is also used to describe the total sum of money that is owed, received, or spent.

This amount is calculated by multiplying her hourly rate of $21.84 (which is determined by dividing her bi-weekly gross earnings of $913.45 by 40 hours) by 47 hours, which is the total number of hours worked in the week. Then, her overtime compensation of 7 hours is multiplied by her hourly rate of $21.84 multiplied by 1.5, which is the rate for time-and-a-half. The sum of these two amounts is her bi-weekly gross earnings with overtime, which is $1,097.56.

To know more about amount click-
https://brainly.com/question/19104371
#SPJ1

For the above coordinate sets, the translation rule is (x,y)⇒(x+11,y-10).

A translation is a sort of transformation that involves sliding each point in a figure the same distance in the same direction. A translation is a transformation that moves every point in a figure in the same direction by the same amount. For example, this transformation shifts the parallelogram 5 units to the right and 3 units up. Translation in geometry refers to shifting a form into a different place without affecting it in any manner. Shape translation is presented to Year 5 students by providing them shapes on squared paper that must be moved a specified number of squares up, down, left, or right.

Here,

(x,y)⇒(x+11,y-10)

The translation rule for the given sets of coordinates is (x,y)⇒(x+11,y-10).

To know more about translation,

https://brainly.com/question/1046778

#SPJ1

Y intercept is the Y value when x is equal to 0. In the point (0,1) x is 0 and y is 1, so the y-intercept is 1.Slope is-1/4.

When a line crosses the y-axis on a graph, that location is known as the y-intercept.It is always 0 for the associated x-coordinate.

By calculating rise over run, the slope can be determined.This is accomplished by splitting the discrepancies between the y- and x-coordinates. The values of the y-intercept and slope reveal details on the nature of the relationship between the two variables, x and y.

The slope is the change in Y over the change in x:

Slope = (0-1) / 4-0) = -1/4

Slope = -1/4

Y intercept is the Y value when x is equal to 0. In the point (0,1) x is 0 and y is 1, so the y-intercept is 1.

To learn more about slope refer

https://brainly.com/question/16949303

#SPJ1

The equation of the line with points (2,1) and (4,3) in slope intercept form is y = x -1

The slope intercept form with point(1,-1) and slope -3/5 is  y = -3x/5 - 2/5

When you know the slope of the line to be investigated and the provided point is also the y intercept, you may utilize the slope intercept formula, y = mx + b. (0, b). The y value of the y intercept point is denoted by the symbol b in the formula.

To get the intercepts, we may locate the vertex and either factor it or use the quadratic formula. A quadratic equation's intercept form is written as y = a (x p) (x q), where and are the intercepts, and and are the same value as in standard form.

Ax+By=C is the usual form for two-variable linear equations. A typical form linear equation is, for instance, 2x+3y=5. When an equation is provided in this format, finding both intercepts is rather simple (x and y). When attempting to solve systems involving two linear equations, this form is also quite helpful.

In slope intercept form

y = mx + c

m is the slope and c is the y intercept

for (1,-1) and slope =-3/5

y = mx + c is  -1 = -3/5 * 1 + c ⇒ c = -2/5

The slope intercept form is  y = -3x/5 - 2/5

Similary we can find the value of others.

Now when we are having 2 points

for (2,1 ) and (4,3)

The slope is (y₂ - y₁)/(x₂-x₁) = (3-1)/(4-2) = 1

The equation will be

y = mx + c

1 = 1*2 + c

⇒ c = -1

The equation of the line in slope intercept form is y = x -1

To learn more about Slope Intercept form refer to :

https://brainly.com/question/29146348

#SPJ1

The measure of the lengths is given below:-

ON = 32.52

MN = 32.52

PN = 23

OM = 46

Geometry is a discipline of mathematics that largely deals with the shapes and sizes of objects, their relative positions, and the qualities of space (from the Ancient Greek: geo- "earth," -metron "measuring").

The lengths will be calculated as:-

OM = LN = 46

Area = (1/2) x OM x LN

Area = (1/2) x 46 x 46

Area = 1058

MN² = 1058

MN = 32.52

Hence, the values are ON = 32.52, MN = 32.52, PN = 23, OM = 46.

To know more about geometry follow

https://brainly.com/question/20654745

#SPJ1

The values of x are 18 or -14.

What is 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 written 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 contains no "equal to" symbol. It will be regarded as a phrase.

Exponents that are fractions with power as the numerator and a root as the denominator are said to be rational exponents.

Given equation is

3 ⁴√(x-2)³ - 4 = 20                          given

3 ⁴√(x-2)³ - 4 + 4= 20 + 4                Add 4

3 ⁴√(x-2)³ = 24

⁴√(x-2)³ = 24/3                                Divide by 3

⁴√(x-2)³ = 8

(x-2)^(3/4) = 8                                 Applying the formula [tex]\sqrt[m]{x^n} = x^\frac{n}{m}[/tex]

(x-2)^[(3/4)×(4/3)] = 8^(4/3)                Cancel Rational exponent

|(x-2)|= (2³)^(4/3)

x-2 = ±16

x -2 = 16    or       x - 2 = -16

x = 18         or        x = -14                   Add 2

To learn more about the solution of an equation, click on the below link:

https://brainly.com/question/14435017

#SPJ4

The value of the equation of is x are 18 or -14.

Equations are statements in mathematics that have two algebraic expressions on either side of the equals (=) sign. It shows that the expressions written on the left and right sides have an equal relationship. In every mathematical equation, LHS = RHS (left hand side = right hand side) is used. Equations can be solved to find the value of an unknown variable that represents an unknown quantity. If there is no "equal to" symbol in a sentence, it is not an equation. We'll consider that to be a term.

Exponents are referred to as rational exponents if they are fractions with a power as the numerator and a root as the denominator.

Given equation is

3 [tex]\sqrt[4]{x-2} ^{(3)}[/tex]- 4 = 20                          given

3 [tex]\sqrt[4]{x-2} ^{(3)}[/tex] - 4 + 4= 20 + 4                Add 4

[tex]3 \sqrt[4]{x-2}^{(3)} = 24[/tex]  

[tex]\sqrt[4]{x-2}^{(3)} = 24/3[/tex]                            Divide by 3

[tex]\sqrt[4]{x-2}^{(3)} = 8[/tex]

[tex](x-2)^{(3/4)}[/tex] = 8                                 Applying the formula

[tex](x-2)^{[(3/4) \times(4/3)] }[/tex] = [tex]8^{(4/3)}[/tex]             Cancel Rational exponent

|(x-2)| = [tex](2^3)^{(4/3)}[/tex]

x-2 = ±16

x -2 = 16    or       x - 2 = -16

x = 18         or        x = -14                   Add 2

To learn more about the solution of an equation, click on the below link:

https://brainly.com/question/17145398

#SPJ1

Answer: for x=1, it would be y=50

Step-by-step explanation:

Answer: Function 1 is 45 and Function 2 is 50 I think

Step-by-step explanation:

Superior segway tours provide sightseeing tours around chicago, illinois. it charges a one-time fee of $55 with $15 per hour.  The slope of the situation is 15.

The slope of a situation represents the rate of change of one quantity with respect to another. In this case, the quantity being considered is the cost of the sightseeing tour, and the independent variable is the number of hours the tour lasts. The cost of the tour can be expressed as a linear equation: C = 55 + 15h, where C is the cost and h is the number of hours. The slope of this equation is 15, meaning that for every hour the tour lasts, the cost increases by $15.

You can learn more about slope at

https://brainly.com/question/16949303

#SPJ4

The 'e' value of 6e12 means 6 x 10^12, which is equal to 6000000000000. It is a scientific notation used to represent a very large number.

The 'e' value of 6e12 is a scientific notation used to represent a very large number. 6e12 is shorthand for 6 x 10^12, which means 6 multiplied by 10 to the power of 12. To calculate the value of 6e12, first note that 10 to the power of 12 is equal to 1000000000000. Then, multiply 6 by 1000000000000 to get 6000000000000. Therefore, 6e12 is equal to 6000000000000. This notation is commonly used to represent very large numbers without having to write out all of the zeros. It is also useful when dealing with large numbers in scientific calculations.

Learn more about number here

https://brainly.com/question/28210925

#SPJ4

In calorimetry problems where the temperature of a system increases is ∆[tex]t_{0}[/tex]> , Q>0

What is Temperature?

The physical concept of temperature indicates in numerical form how hot or cold something is. A thermometer is used to determine temperature. Thermometers are calibrated using a variety of temperature scales that traditionally drew their definition from different reference points and thermometric materials.

Reason

The phase change that takes place when a solid melts into a liquid or a gas condenses into a liquid keeps the temperature constant while the thermal energy changes. the second choice is the right one.

When a system's temperature rises in a calorimetry problem, T > 0 and Q > 0. the third choice is the best one.

For every operation in an ideal gas, the change in thermal energy when the temperature changes by T varies.

In calorimetry issues, where a system's temperature rises is ∆t > 0 and q < 0

To learn more about Temperature visit:

brainly.com/question/29768169

#SPJ4

For [tex]log_{10}{\frac{1}{x} }=-6.34[/tex], the value of x is  2187761.6

We know that logarithm of a number is nothing but the power to which a number must be raised to get some other values.

i.e., if  [tex]b^y=a[/tex] then [tex]log_b{a}=y[/tex]

similarly if  [tex]log_b{a}=y[/tex] then  [tex]b^y=a[/tex]  

Where, a and b are two positive real numbers

y is a real number

Here, a is called argument, and b is called the base of the logarithm.

Consider logarithmic equation,

[tex]log_{10}{\frac{1}{x} }=-6.34[/tex]

Comparing above equation with  [tex]log_b{a}=y[/tex] we get,

a = 1/x, b = 10 and y = -6.34

From definition of logarithm [tex]log_b{a}=y[/tex] then  [tex]b^y=a[/tex]  we get,

⇒ [tex]10^{-6.34}=\frac{1}{x}[/tex]

⇒ x = [tex]\frac{1}{10^{-6.34}}[/tex]

⇒ x = 10^(6.34)

⇒ x = 2187761.6

Therefore, the value of x is 2187761.6

Learn more about the logarithm here:

https://brainly.com/question/29007435

#SPJ4

4. If coach puts Tara and Laney on Team B, the mean height of the players on Team B will be shorter than 5 feet 10 inches.

To learn more about statistical comparison refer to:

https://brainly.com/question/26925971

#SPJ1