help meeeeeeeeeeee pleaseeeeeeeeeee rn rnnnnnnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
help meeeeeeeeeeee pleaseeeeeeeeeee rn rnnnnnnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

An equation is a mathematical statement showing the equality of two

opposite variables

How to determine the equation of the circle using coordinates?

The equation of a circle is determined by the function r²=(x-x1)² +(y-y1)²

where :

then, the last thing is to write the equation of the circle and input the values of the coordinates to arrive at your answer,

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The probability of selecting two students (a and b) randomly is found as 1/380.

The formula for evaluating the Probability is-

Probability = Favourable outcomes / Total outcomes.

As, per the given question.

Total number of students = 20.

The probability for selection of 'a' is 1/20.

Now, the total students left is 19.

Thus, the probability for selection of 'b' is 1/19.

The total probability for selection of both is -

Probability(a and b) = 1/20×1/19

Probability(a and b) = 1/380

Thus, the probability of selecting two students ( a and b) randomly is found as 1/380.

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Answer:

0,3

Step-by-step explanation:

it between the 2 and it is negative and positive cases in the -2

The sides of ΔTUV in order from longest to shortest is as follows -

TV > TU > VU

A triangle is a polygon with three edges and three vertices. The sum of all the angles of a triangle is 180 degrees. Mathematically -

∠x + ∠y + ∠z = 180°

The sum of two sides of a triangle is greater then the third side. Mathematically -

a + b > c

There are different types of triangles such as -

equilateral triangle , scalene triangle , isosceles triangle etc.

Given is ΔTUV, m∠T = 58° and m∠U = 97°.

Refer to the image attached.

TV > VU

TU + VU > TV

TV > TU + VU

So we can arrange the sides as follows -

TV > TU > VU

Therefore, the sides of ΔTUV in order from longest to shortest is as follows -

TV > TU > VU

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The number of perennials flower from 60 flowers seen by the students with of which 70% were perennials flowers is 42.

Perennials Flowers are plants that live more than two years.

To calculate the amount of perennial flowers seen by the students, we use the techniques of percentage.

Using the formula,

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the number of perennials flower is 42.

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The number of students that went on the field trip is 137.

Let s represent the number of seventh grade students that went on the field trip.

Total number of participants = number of students + number of teachers

a + 19

Number of participants that rode the larger bus : 2/3 x (a + 19) = 104

In order to determine the value of a, take the following steps:

Multiply both sides of the fraction by 3 / 2

a + 19 = 104 x 3 / 2

a + 19 = 156

Subtract 19 from both sides of the equation:

a = 156 - 19

a = 137

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Answer:

Δ = b² - 4ac

Step-by-step explanation:

do math

Answer:

y = 44

Step-by-step explanation:

y = 300

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Steps are in the attached picture!

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Joke: What runs around a farm but doesn’t move?

Answer: A fence.

Have a great day and God bless! :D

The value of x will be 15 and the value of y will be 4.

If two objects are having the same shape then they will be termed as similar. So in mathematics, if two figures have the same shapes, lines or angles then they are called similar.

Here in the image, we have a triangle having sub-triangles. The value of x is calculated by considering two right-hand triangles.

x / ( x + 5 ) = 18 / ( 18 + 6 )

x / ( x + 5 ) = 18 / 24

24x = 18x + 90

6x = 90

x = 15

The value of y will be calculated by considering the two left-hand triangles.

12 / ( 12 + y) = 15 / 20

240 = 180 + 15y

15y = 60

y = 60 / 15

y = 4

Therefore, the value of x will be 15 and the value of y will be 4.

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The dependent variable depends on a particular situation. The independent variable does depends on the result of an experiment. The controlled variable is a variable whose value is constant.

What is dependent variable?

The variable being measured or tested in an experiment is known as the dependent variable. The results of the participants' tests, for instance, since that is what is being measured, would be the dependent variable in a study looking at how tutoring affects test scores.

What is independent variable?

This isn't the same as an experiment's independent variable, which is a variable that can stand on its own. Tutoring would be the independent variable in the aforementioned case. The dependent variable (test results), however, may alter depending on the independent variable (tutoring).

What is controlled variable?

Anything kept constant or constrained in a research study is referred to as a control variable. Despite not being relevant to the study's objectives, this variable is controlled because it might have an impact on the results.

Numbers called parameters are used to define the characteristics of entire populations. Statistics are numerical representations of sample characteristics. One population parameter is the average income in the United States.

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Solving the  system of equations using the algebraic method gives x = 1 or x = -4

Given: y = x²+x-1 and y+2x=3

In order to solve the system of equations algebraically

First, rewrite y+2x=3 to make y the subject:

y = 3-2x

Then, equate the two y of the equations and solve for x:

x²+x-1 = 3-2x

x²+x-1-3+2x = 0

x²+3x-4 = 0      (factorize)

x²+4x-1x-4 = 0

(x-1)(x+4) = 0

x-1 = 0 or x+4 = 0

x = 1 or x = -4

Therefore, the solution of the system of equations is x = 1 or x = -4

I pick the algebraic method because it is easier, faster and more accurate

I can check my answer by substituting the values of x into the equation  

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Answer:

(-4, 11) and (1, 1)

Step-by-step explanation:

Given system of equations:

[tex]\begin{cases}y=x^2+x-1\\y+2x=3\end{cases}[/tex]

The solutions to the given system of equations are the points of intersection of the two graphs.

To solve the given system of equations algebraically, first rearrange the second equation to make y the subject:

[tex]\implies y=3-2x[/tex]

Substitute the found expression for y into the first equation:

[tex]3-2x=x^2+x-1[/tex]

Rearrange to a quadratic equation and factor:

[tex]x^2+3x-4=0[/tex]

[tex]x^2+4x-x-4=0[/tex]

[tex]x(x+4)-1(x+4)=0[/tex]

[tex](x+4)(x-1)=0[/tex]

Apply the zero-product property to solve for x:

[tex](x+4)=0\implies x=-4[/tex]

[tex](x-1)=0\implies x=1[/tex]

To find the y-values of the solutions, substitute the found x-values into the rearranged second equation:

[tex]x=-4 \implies y=3-2(-4)=11[/tex]

[tex]x=1\implies y=3-2(1)=1[/tex]

Therefore, the solutions to the given system of equations are:

In 120 different variations of this model car are possible.

One of the four fundamental mathematical operations, along with addition, subtraction, and division, is multiplication. Multiply in mathematics refers to the continual addition of sets of identical size. Let's use the ice creams as a multiplication example to help us comprehend. There are two such groupings, and each group has ice cream.

Calculating the sum of two numbers multiplied together is the process of multiplication. Simple tests in addition, subtraction, multiplication, and division will be given. 2. a noncount noun The process or occurrence of something of a certain kind multiplying occurs when their quantity or number increases.

Given,

There are five different ways to choose a car's color.

3 different car transmission selection options are available.

There are four different interior automobile selection options.

There are two different ways to pick a car's engine.

The potential number of car variations is thus:

Multiplying:

5 × 3 × 4× 2

120

In 120 different variations of this model car are possible.

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The correct statements regarding the scatter plot are given as follows:

The scatter plot is used to give the points needed to build the linear regression equation relating the output variable of the vertical axis as a function of the input variable represented by the horizontal axis.

In the context of this problem, these points are given as follows:

(0, 4), (2, 5), (7,7), (9, 10), (14, 12), (15, 15), (21, 17).

Inserting these points into a linear regression calculator, the equation is listed as follows:

y = 0.6529x + 3.65758

On each day listed on the options, the predicted weights are given as follows:

From these numeric values, the correct options are selected.

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Answer:

4/3x

Step-by-step explanation:

The speed of the wind is 50 mph.

Speed, expressed in terms of meters per second, is the rate at which an object's position changes. A thing moves one metre in one second, for instance, if it starts at the origin and moves three metres in three seconds. The formula for speed is as straightforward as dividing a distance by a time.

Given,

250 mph for the plane's speed when there is no wind

v is the wind speed.

Think about how the plane will move against the wind:

V' = the rate of flight of the aircraft against the wind = V + v = 250 + v

300 miles is the distance travelled in d'.

T is the passage of time over the distance.

The distance's travel time is specified as

t' = d'/V'

t' = 300/(250 + v) eq-1

Think about how the plane moves when flying against the wind:

V" is the speed of a plane travelling against the wind and equals V - v. This equals 250 - v.

D" = 200 miles of distance travelled

t" is the passage of time over the distance.

The distance's travel time is specified as

t'' = d''/V''

t'' = 200/(250 - v) eq-2

Due to this:

travelling time of 300 time required to drive 200 miles in miles

t' = t''

using eqs 1 and 2

300/(250 + v) = 200/(250 - v) (250 - v)

3/(250 + v) = 2/(250 - v) (250 - v)

750 - 3 v = 500 + 2 v

5 v = 250

v = 50 mph

The speed of the wind is 50 mph.

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Answer: C

Step-by-step explanation:

All i used was a desmos graphing calculator

Answer:

-1

Step-by-step explanation:

Given:

[tex]i^{50}[/tex]

Rewrite 50 as the product of 2 and 25:

[tex]\implies i^{(2 \cdot 25)}[/tex]

[tex]\textsf{Apply the exponent rule} \quad a^{bc}=(a^b)^c:[/tex]

[tex]\implies \left(i^2\right)^{25}[/tex]

Apply the imaginary number rule  i² = -1 :

[tex]\implies \left(-1\right)^{25}[/tex]

[tex]\textsf{Apply the exponent rule} \quad (-a)^n=-a^n,\:\: \textsf{ if }n \textsf{ is odd}:[/tex]

[tex]\implies -1^{25}[/tex]

As 1²⁵ = 1 then:

[tex]\implies -1[/tex]

Answer:

(i)⁵⁰ = -1

Step-by-step explanation:

The problem is,

→ (i)⁵⁰

Formula we use,

→ i² = -1

Let's solve the problem,

→ (i)⁵⁰

→ (i²)²⁵

→ (-1)²⁵

→ -1

Hence, the answer is -1.

After being painted red on all six faces, a hardwood cube with nn units on each side is chopped into n3n 3-unit cubes. The unit cubes have exactly one-fourth of their faces be red, therefore nn equals 4.

On each face of the large wooden cube, there are tiny faces that have been painted red.

There are few faces overall because each unit cube has faces.

Given that one-fourth of the little faces are red,

[tex]6n^2/6n^3[/tex] [tex]= 1/4[/tex]

[tex]1/n = 1/4[/tex]

[tex]N=4[/tex]

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Answer:90 t shirts

Step-by-step explanation: 20:30 is the ratio and if they make 60 sweatshirts, they would have to make 90 tshirts as well. this would keep the same ratio

Answer:

135 degrees

Step-by-step explanation:

a triangle rule is sum of all three angles equal 180

We know one angle of the triangle angle is 45 degrees because of the corresponding angle below it

So we just subtract 45 from 180

180-45=135

hopes this helps please mark brainliest

Answer:

By comparing both the figures there is a difference of 6

[tex]x + 1 = 24 - 6 \\ x = 24 - 6 - 1 \\ x = 17[/tex]

The solutions for the given equation is (6, -6). The graph for the given  equation is plotted below.

The given equation is x²-36=0.

Graph is a mathematical representation of a network and it describes the relationship between lines and points. A graph consists of some points and lines between them. The length of the lines and position of the points do not matter.

We need to graph the given equation

x²-36=0

⇒ x²=36

⇒ x=±√36

⇒ x=±6

So, solution is (6, -6)

The graph for equation x²-36=0 is given below

The solutions for the given equation is (6, -6). The graph for the given  equation is plotted below.

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Answer:

3

Step-by-step explanation:

what it means by generator is the continuance of the multiplication process so 1x3=3 and then 3x3=9 and so on.

An equation is a collection of variables and constants. The value of x and y for the system of the equation as -2x - 4y = -18 and x = y will be x = 3 and y = 3.

There are many different ways to define an equation. The definition of an equation in algebra is a mathematical statement that demonstrates the equality of 2 mathematical expressions.

As per the given system of equations,

-2x - 4y = -18 and x = y

Substitute, x = y

-2(y) - 4y = -18

-6y = -18

y = 3 and x = 3

Hence "The value of x and y for the system of the equation as -2x - 4y = -18 and x = y will be x = 3 and y = 3".

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The midrange of the data set shown is 85 is true about the box-and-whisker plot below. The middle is the number in question. The least and greatest values should be added together, divided by two, or, in other words, the mean of the least and biggest values should be determined.

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Answer:

Step-by-step explanation:

There are 15 circles and 6 squares.

Total shapes:

Ratio of squares to total shapes:

Answer:

the answer is 2:7

Step-by-step explanation:

6÷3 : 21÷3

=2:7

The probability that the squad will have exactly three women members is 0.389

Total number of people in CU Boulder triathlon = 21

Number of Men = 9

Number of Women = 12

We are told that a 5-member squad is selected and now we want to find the probability that the squad will have exactly 3 women members.

Thus;

P(exactly 3 womens) = (12C3 * 9C2)/(21C5)

P(exactly 3 womens) =7920/1716

P(exactly 3 womens) = 0.389

Hence, the probability that the squad will have exactly three women members is 0.389

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Answer:

Square root 19 comma, 5,8,30

Answer:5,8,30

Step-by-step explanation: i took a test