i give brainlest can somebdy pls help me

⇒Vertical angles are equal .

This means that ∠1=∠2

⇒The trick is to first find the value of the unknown variable x then substitute it in the expression of ∠1 to get the exact magnitude of the angle.

[tex]5x+12=6x-11\\5x-6x=-11-12\\-x=-23\\\frac{-x}{-1} =\frac{-23}{-1} \\x=23[/tex]

x=23°

To get the exact value of ∠1 Plug in 23° in the place of x in the expression of ∠1:

[tex]< 1=5x+12\\=5(23)+12\\=127[/tex]

∠1=127°

Answer:

-2

Step-by-step explanation:

The line passes through the y-intercept at the point (0, -2)

The solution to the system of linear equations 6 · x + 2 · y - 9 = 0 and y = 2 · x - 3 is (x, y) = (1.5, 0).

In this question we find a system of two linear equations and two variables, this can be done by using a Cartesian plane and drawing each line equation. The solution to the system is represented by the point of intersection of the two lines.

Therefore, the solution to the system of linear equations is (x, y) = (1.5, 0).

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The solution to the system of linear equations will be; 6x + 2y - 9 = 0 and y = 2x - 3 is; (1.5, 0).

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be one degree.

To solve a system of linear equations by graphic methods: we need a system of two linear equations and two variables, using a Cartesian plane and each line equation.

The solution to the system is shown by the point of intersection of the given lines.

6x + 2y - 9 = 0

y = 2x - 3

6x + 2 (2x - 3 ) - 9 = 0

x = 1.5

(x, y) = (1.5, 0).

Hence, the solution to the system of linear equations would be; (x, y) = (1.5, 0).

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The values of x and XZ, calculated by the given equations are  3 and 30 respectively.

What is a equation?

The equals sign indicates that two expressions in an equation are equal. An equation is a mathematical formula. The meaning of the word equation and its cognates may change a bit depending on the language. An equation is defined as including one or more variables in French, as opposed to English, where an equation is defined as any well-formed formula that consists of two expressions connected by the equals sign.

Given information (and equations) in the question:

Y is between X and Z,

XY = 19,

YZ = 2x+5,

XZ = 6x+12

Since the question say Y is between X and Z, it means:

XY + YZ = XZ

Substituting the values in this equation by the values given in the question:

19 + 2x + 5 = 6x + 12

24 - 12 = 4x

x = 3

putting the value of x in the given equation:

XZ = 6x + 12

XZ = 6(3) + 12

XZ = 18 + 12

XZ = 30

Hence, the values of x and XZ are 3 and 30 respectively.

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The values in order from least to greatest are 0-0.5,√(0.5),20%,20% √/0.5,√/0.5 |−0.5| 20%. we eliminate 0-0.5 because the value is two times in the option.

Percentage represents a proportion or a fraction of a whole, expressed as a portion of 100. It is commonly denoted by the symbol "%" (percent), which literally means "per hundred."

According to the given information:

The values in the list are:

0-0.5 = a range of values from 0 to 0.5, inclusive

√(0.5) ≈ 0.7071

20% = 0.2

20% √/0.5 = 0.2 * √(0.5) ≈ 0.1414

√/0.5 |−0.5| 20% = √(0.5) * |−0.5| * 0.2 ≈ 0.0707

Therefore, the correct list in order from least to greatest is:

0-0.5

√(0.5)

20%

20% √/0.5

√/0.5 |−0.5| 20%

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Given:

Let substitute one by one from the given options.

3x is not the function f.

4x is not the function f.

2x is the function f.

Option C is the final answer.

Answer:

10 cups

I hope this helps, have a great day/night!

Answer:

6. a because a rectangle with sides 8 and 2 has a perimeter of 20 but its area is 16.

7. d because 4 is an even number and it is a perfect square.

8. b because a pen can be used to write but is not a utensil.

Step-by-step explanation:

An expression that could represent the price of the item after the discount is 0.8y.

Given that, an item costs y dollars and then a 20% discount is applied.

An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division.

Cost price = $y and Discount percentage = 20%

Discount = 20% of y

= 20/100 × y

= 0.2y

The price of the item after the discount = y-0.2y

= 0.8y

Therefore, an expression that could represent the price of the item after the discount is 0.8y.

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Answer:

[a] 15

[b] 13

Step-by-step explanation:

       We can use the visual diagram given to solve. We can see that when you input -8 (on the left side) the arrow leads to the output 15, our answer.

       We use the same method for part b. When you input 3 (on the left side) the arrow points to 13 (on the right side) giving us an answer of 13.

Given the following expression:

Rewriting this using the distributive property of multiplication over addition will be:

Therefore, the answer is letter B - 10(3) + 10(2)

y = 6x is proportional.

Proportionality between x and y is defined if there is a constant of proportionality 'k' such that y = kx.

So here, the constant of proportionality in y = 6x is 6.

This equation also means that y varies directly with respect to x and then 6 is the constant of variation.

That is, y is directly proportional to x.

Then a change in y implies a corresponding change in x in the same direction as that of y.

If x increases, then y also increases and if x decreases, then y also decreases.

These changes are related to the constant of proportionality 6.

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The length of the radius of the circle is 44cm.

This problem bothers on the mensuration of flat shapes, a circular shape.

Given data

Circumference of circle C= 88πcm

Radius of circle r=?

To find the length of the radius of the circle.

To solve for the radius let us apply the formula for the circumference of a circle

C=2πr

Substituting our given data

88π=2πr

Making r subject of formula we have

r= 88π/2π

r= 44cm

Hence, The length of the radius of the circle is 44cm.

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To answer this question, we only need to replace x by 5, and then solve the resulting operations:

Therefore, the value for the expression 4x-13 when x = 5 is equal to 7.

Nina bought 3.45 pounds of walnut.

Nina bought 1.62 pounds more walnut than almonds

Quantity of pecan bought by Nina = 1.725 pounds

Quantity of almonds bought by Nina = 1.83 pounds

The process of comparison of numbers establishes the similarities between two numbers and determines which number is greater, smaller, or equal to another number.

Quantity of walnuts = 2*Quanitity of pecans

= 2*1.725

= 3.45 pounds

So, she bought 3.45 pounds of walnut

Pounds of walnuts bought more than the almonds = Quantity of walnuts bought by Nina - Quantity of almonds bought by Nina

= 3.45 - 1.83

= 1.62 pounds

So, she bought 1.62 pounds more walnuts than almonds

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the red triangle is the building

the black triangle is the house

x is the height of the building

we have a problem of Tales triangles semblants so we can use this equalities

the height of the building is 110.5 feet

The real world knowledge we use to understand the STEM task are :

A) STEM integrates it's concepts and applications to real life.

B) STEM helps in finding solution to the practical issues.

C) Focuses on building models and replicating scenarios.

What is STEM ?

STEM education refers to the integrated teaching and learning of the subjects such as science, technology, engineering, and mathematics.

We know that STEM teaches critical thinking skills and instills a passion for innovation. Beyond the advantages of learning STEM subjects, STEM supports the problem-solving and inquisitive learning that are essential for success in a range of tasks and professions. Colleges are now incorporating all of these helpful ideas into their normal study courses, and the results are clearly very favorable.

The real world knowledge we use to understand the STEM task is as follows :

Therefore , the real world knowledge we use to understand the STEM task are :

A) STEM integrates it's concepts and applications to real life.

B) STEM helps in finding solution to the practical issues.

C) Focuses on building models and replicating scenarios.

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Answer:

1 41/100

Step-by-step explanation:

Answer:

141/100 (Already in simplest form). As a mixed number, it is: 1 41/100

Step-by-step explanation:

The leading term of the polynomial is [tex]4x^{3}[/tex] and the degree of the polynomial is 3.

A sheet of paper measuring 8.5 inches by 14 inches is currently in our possession. The box's volume V, measured in cubic inches, depends on the side length x, where V (x) = (14-2x)(8.5-2x)(x).

So, we have :

V (x) = (14-2x)(8.5-2x)(x)

[tex]V(x) = (14-2x)(8.5-2x)(x).\\V (x) = (14-2x)(8.5x-2x^{2} )\\V(x) = 4x^{3} -45x^{2} + 119x[/tex]

Thus, the leading term of the polynomial is [tex]4x^{3}[/tex] and the degree of the polynomial is 3.

Now, we have :
[tex]V(x) = 4x^{3} -45x^{2} + 119x\\V(x) = x ( 4x^{2} -45x +119)\\V(x) = x (x-7)(4x-17)[/tex]

Now, For intercepts, V(x) = 0

[tex]V(x) = x (x-7)(4x-17) = 0\\x (x-7)(4x-17) = 0\\\\x = 0, 7, 4.25[/tex]

Now when x = 0, V(x) =0

when x = 7, f(x) = 135

when x = 4.25, f(x) = 252.89

So, the points are (7, 135) and ( 4.25, 252.89)

These points represent the value of x and their corresponding value of V.

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In probability , 5148 possible flushes in poker.

What is probability in math?

there are C(13,5) 5-card hands… i.e.

the number of combinations of taking 5 cards from 13 distinct cards.

But, since there are 4 suits, there are then 4*C(13,5) possible “flushes.”

Thus, there are 4*1287=5148 possible flushes in poker.

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The probability that the student is a sixth-grader or rated good grades as most important is (168 / 335) + (135 / 335) = 0.904

Probability is used to determine the odds that a random event would happen. The odds that the event would happen lies between 0 and 1.

The probability that the student is a sixth-grader or rated good grades as most important = (number of sixth-graders / total number of students) + (students who rates good grades as most important / total number of students)

(168 / 335) + (135 / 335) = 303 / 335 = 0.904

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Answer:

QUESTION 1: x³ - 2 x² - 5 x - 18 remainder 48

Answer:

v=3.2

Step-by-step explanation:

12.8 = 4v

v= 12.8/4       isolate the variable and divide.

v= 3.2            Answer

Answer:

Integer 1-  43

Integer 2- 44

Integer 3- 45

Step-by-step explanation:

x+(x+1)+ (x+2)=132

3x+3-3=132-3

3x=127

/3  /3

x=43

x+1=44

x+2=45

Answer:

Slope = 3

Step-by-step explanation:

(-4, -10) and (-7, -19)

(x₁, y₁)           (x₂, y₂)

       y₂ - y₁        -19 - (-10)         -19 + 10        -9

m = ------------ = ---------------- = ------------- = -------- = 3

       x₂ - x₁          -7 - (-4)           -7 + 4           -3

I hope this helps!

[tex](\stackrel{x_1}{-4}~,~\stackrel{y_1}{-10})\qquad (\stackrel{x_2}{-7}~,~\stackrel{y_2}{-19}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-19}-\stackrel{y1}{(-10)}}}{\underset{run} {\underset{x_2}{-7}-\underset{x_1}{(-4)}}} \implies \cfrac{-19 +10}{-7 +4} \implies \cfrac{ -9 }{ -3 } \implies 3[/tex]

[tex]\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-10)}=\stackrel{m}{ 3}(x-\stackrel{x_1}{(-4)}) \implies y +10= 3 (x +4) \\\\\\ y+10=3x+12\implies {\Large \begin{array}{llll} y=3x+2 \end{array}}[/tex]

Answer:

5/8 and 25/64

Correlation is not sensitive to the scale of the data; however, covariance is  sensitive to the scale of the data, so the statement is false.

Covariance is a term used in statistic and regression analysis. Covariance shows how two variables differ.

Covariance is affected by the change in scale, for example if all the value of one variable is multiplied by a constant and all the value of another variable are multiplied, by the same or another constant all together, then the covariance is automatically changed.

Correlation is also a term used in regression analysis and statistics. Correlation shows how two variables are related and therefore not influenced by the change in scale.

Hence the given statement is False

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Answer: 10, 6

Step-by-step explanation:

[tex]6|x-8| \leq 12\\\\|x-8| \leq 2\\\\-2 \leq x-8 \leq 2\\\\6 \leq x \leq 10[/tex]

Solution of Square root,  x² = 30: x = √30 = √30² = 30, x = -√30 = -√30² = 30

Solution of Cube root, x³ = 30: x = ∛30 = ∛30³ = 30, x = -∛30 = -∛30³ = -30

Given,

Square root x² = 30

Then, the value of:

x = √30 = √30² = 30

x = -√30 = -√30² = 30

x = ∛30 = ∛30² = 3.107

x = -∛30 = -∛30² = -3.107

Now,

Cube root, x³ = 30

x = √30 = √30³ = 164.317

x = -√30 = -√30³ = -164.317

x = ∛30 = ∛30³ = 30

x = -∛30 = -∛30³ = -30

Therefore,

Solution of Square root,  x² = 30:

x = √30 = √30² = 30

x = -√30 = -√30² = 30

Solution of Cube root, x³ = 30:

x = ∛30 = ∛30³ = 30

x = -∛30 = -∛30³ = -30

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