Select all of the following sets in which the number 23 is an element

Answer:

Step-by-step explanation:

A- (-3,4)

left on the x-axis would result in negative 3

4 units above the x-axis would result in postive 4

Answer:

2(x+3)

Step by Step:

2(x)=2x

2(3)=6

2x+6=2(x+3)

2(x)+2(3) =2 (x+3)

There are 640 juniors enrolled in Eagle Mountain High school.

Percentage can be define as the way of shown a number as a fraction of 100. The word "percent" comes from the Latin per centum, which means "by the hundred." Percentages are commonly used to represent proportions or rates, and they are denoted using the symbol "%".

Let's denote the total number of juniors in the high school as "x".

From the problem, we know that 90% of the juniors have a driver's license. We can express this as:

0.9x = 576

To solve for x, we can divide both sides by 0.9:

x = 576 / 0.9

x = 640

Therefore, there are 640 juniors enrolled in Eagle Mountain High school.

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1. The volume of a cone is  8π cubic inches.

2. The volume of a sphere is  8π cubic inches.

3. The volume of a cube is  8π cubic inches.

4. The volume of a cylinder is  8π cubic inches.

5. The volume of a rectangular prism is  8π cubic inches.

The volume of a thing is the area that it occupies in three dimensions. Space is what a thing occupies, to put it simply.

1. The volume of a cone is given by V = (1/3)πr²h, where r is the radius and h is the height. Substituting the given values, we get V = (1/3)π(2²)(6) = (4/3)π(6) = 8π cubic inches.

2. The volume of a sphere is given by V = (4/3)πr³, where r is the radius. Substituting the given value, we get V = (4/3)π(24³) = 18432π cubic inches.

3. The volume of a cube is given by V = s³, where s is the side length. Substituting the given value, we get V = 6³ = 216 cubic inches.

4. The volume of a cylinder is given by V = πr²h, where r is the radius and h is the height. Substituting the given values, we get V = π(4²)(5) = 80π cubic inches.

5. The volume of a rectangular prism is given by V = lwh, where l, w, and h are the length, width, and height, respectively. Substituting the given values, we get V = (9)(5)(5) = 225 cubic inches.

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Answer:

me too (help)

Step-by-step explanation:

The sum of the solutions for the equation 4x²- 8x - 12 = 0 will be 2. The correct option is C.

A quadratic equation is a polynomial with a degree of 2 or the maximum power of the variable is 2 in quadratic equations. It has two solutions as its maximum power is 2.

To find the sum of the solutions of the equation 4x^2-8x-12=0, we first need to find the solutions of the equation. We can start by factoring in the left-hand side of the equation:

4x²-8x-12=0

4(x²-2x-3)=0

4(x-3)(x+1)=0

So the solutions of the equation are x=3 and x=-1. The sum of these solutions is:

3 + (-1) = 2

Therefore, the answer is C) 2.

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Answer:

Cindy's time was 5 2/5 minutes, or 5.4 minutes to the nearest tenth.

Step-by-step explanation:

To find Cindy's time, we need to use the information given about the total time and the times of the other three runners.

Let's first convert all the times to fractions of a minute:

Barbara: 3 3/10 = 3 + 3/10 = 3.3 minutes

Donna: 2 4/5 = 2 + 4/5 = 2.8 minutes

Cindy: x minutes

Nicole: 2 1/10 = 2 + 1/10 = 2.1 minutes

Now, we can set up an equation to represent the total time of the team:

Barbara's time + Donna's time + Cindy's time + Nicole's time = 11 3/5 minutes

Substituting the values we know:

3.3 + 2.8 + x + 2.1 = 11 3/5

Simplifying and converting mixed numbers to fractions:

8/5 + 14/5 + x + 11/5 = 116/10 + 3/5

Multiplying both sides by 10 to eliminate the denominators:

16 + 28 + 10x + 22 = 116 + 6

Simplifying:

10x = 54

Dividing by 10:

x = 5.4

Therefore, Cindy's time was 5 2/5 minutes, or 5.4 minutes to the nearest tenth.

Answer:

No, Sasha's conclusion is not correct. If her last line is 0 = 13, this means that 0 is equal to 13, which is not true. Therefore, there is no solution to the equation that Sasha solved.

It's possible that Sasha made an error in her algebraic manipulations that led to this incorrect conclusion. It's also possible that there is no solution to the equation. In either case, the fact that her last line is 0 = 13 indicates that there is an error in her solution or that the equation is inconsistent and has no solution.

Step-by-step explanation:

step-by-step explanation of why Sasha's conclusion is not correct:

Given: Sasha's last line of her solution is 0 = 13.

Recall that the goal of solving an equation is to find the value(s) of the variable that make the equation true.

If the equation is true, then both sides of the equation should be equal.

However, Sasha's last line states that 0 is equal to 13. This is not true, since 0 is not equal to 13.

Therefore, the conclusion that the solution to the equation is 13 is not correct.

It's possible that Sasha made an error in her algebraic manipulations, which led to this incorrect conclusion.

Alternatively, it's possible that the equation itself is inconsistent and has no solution.

In either case, the fact that Sasha's last line is 0 = 13 indicates that there is an error in her solution or that the equation is inconsistent and has no solution.

No, Sasha's conclusion is not correct. If her last line is 0 = 13, this means that 0 is equal to 13, which is not true. Therefore, there is no solution to the equation that Sasha solved.

It's possible that Sasha made an error in her algebraic manipulations that led to this incorrect conclusion. It's also possible that there is no solution to the equation. In either case, the fact that her last line is 0 = 13 indicates that there is an error in her solution or that the equation is inconsistent and has no solution.

Given: Sasha's last line of her solution is 0 = 13.

Recall that the goal of solving an equation is to find the value(s) of the variable that make the equation true.

If the equation is true, then both sides of the equation should be equal.

However, Sasha's last line states that 0 is equal to 13. This is not true, since 0 is not equal to 13.

Therefore, the conclusion that the solution to the equation is 13 is not correct.

It's possible that Sasha made an error in her algebraic manipulations, which led to this incorrect conclusion.

Alternatively, it's possible that the equation itself is inconsistent and has no solution.

In either case, the fact that Sasha's last line is 0 = 13 indicates that there is an error in her solution or that the equation is inconsistent and has no solution.

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All the central angles are,

Red= 100°

blue= 150°

green= 50°

purple= 60°

The circle is a closed two dimensional figure , in which the set of all points is equidistance from the center.

Given that;

The data below shows the colors preferred by a group of people.

Cooler          Number of people

Red=                 20

blue=                 30

green=               10

purple=              12

Now, Total number of Peoples is,

⇒ 20 + 30 + 10 + 12

⇒ 72

Hence, We get;

Proportion of Red = 20/72 = 5/18 = 10/36

Central angle = 5/18 x 360 = 100°

Proportion of Blue = 30/72 = 15/36

Central angle = 15/36 x 360 = 150°

Proportion of Green = 10/72 = 5/36

Central angle = 5/36 x 360 = 50°

Proportion of Purple = 12/72 = 1/6 = 6/36

Central angle = 1/6 x 360 = 60°

Thus, All the central angles are,

Red= 100°

blue= 150°

green= 50°

purple= 60°

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Answer: see bellow

Step-by-step explanation: Z is 80   Y is 90 and    x is 90

This works because each measure is the same arcoss!!!

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Answer:

Step-by-step explanation:

We are interested in finding out the missing angles of the rhombus . Some properties of rhombus that needs to be kept in mind are ,

[tex]\implies z = 80^o \\[/tex]

[tex]\implies x = y \\[/tex]

Now since the opposite sides are parallel, the sum of co interior angles would be 180° .

Here x and 80° are co interior angles. So their sum would be 180° . Hence,

[tex]\implies x + 80^o = 180^o \\[/tex]

[tex]\implies x = 180^o - 80^o \\[/tex]

[tex]\implies x = 100^o\\[/tex]

Now since x and y were equal , therefore,

[tex]\implies y = 100^o \\[/tex]

Therefore the value of x is 100° , z is 80° and y is 100° .

So, it is proven that the area of triangle ABC is 1/2*a*b*sinC  .

A triangle is a 2D shape having three sides and the sum of all angles is 180°. A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted \triangle ABC. In Euclidean geometry, any three points, when non-collinear, determine a unique triangle and simultaneously, a unique plane.

We have,

A ΔABC,

And,

AB = c

BC = a

CA = b

H = Altitude of the triangle,

Now,

Area of triangle = 1/2* base* height

i.e.

Area of triangle ABC =1/2*a*h     .....(i)

Now,

Using trigonometric ratios,

sinC = perpendicular/hypotenuse

i.e. sinC = h/b

We get,

h = b * SinC

Now,

putting this value in equation (i),

We get,

Area of triangle ABC=1/2*a*b*sinC

So, It is proved that area of triangle ABC =1/2*a*b*sinC   ,

Hence, we can say that it is proven that the area of triangle ABC is 1/2*a*b*sinC , using trigonometric ratios and the triangle's area formula.

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Answer:

x = 5.5

Step-by-step explanation:

2x + 3 - 4 = 10

2x - 1 = 10

2x = 11

x = 5.5

Let's check

2(5.5) + 3 - 4 = 10

11 + 3 - 4  = 10

14 - 4 = 10

10 = 10

So, x = 5.5 is the correct answer.

Answer: x = 5.5

Step-by-step explanation:

To solve, we will isolate the variable x.

      Given:

             2x + 3 - 4 = 10

      Combine like terms on the left side:

             2x - 1 = 10

      Add 1 to both sides of the equation:

             2x = 11

      Divide both sides of the equation by 2:

             x = 5.5

Answer:

[tex]y=7,\:x=1[/tex]

Step-by-step explanation:

Given that:

[tex]y=4x+3,\:y=-2x+9\\\\\mathrm{Substitute\:}y=-2x+9\\\\\implies -2x+9=4x+3\\\\\implies -2x-4x = 3-9\\\\\implies -6x = -6\\\\\implies x = 1\\\\\mathrm{For\:}y=-2x+9\\\\\mathrm{Substitute\:}x=1\\\\y=-2\cdot \:1+9\\\\\mathrm{Simplify}\\\\y=7\\\\\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}\\\\y=7,\:x=1[/tex]

Answer:

y=4x-3

y= 1

Y = -2x+9

Y=7 ans

Answer:

what am i suppose to answer !!!!

Answer:

he has 180 left

Step-by-step explanation:

because 224-44=180

Answer:

To find the average amount won each day by the champions, we need to divide the total amount won by the number of days:

Average amount won each day = Total amount won / Number of days

Total amount won = $694,563

Number of days = 22

Average amount won each day = $694,563 / 22 = $31,611.95 (rounded to the nearest cent)

Therefore, the average amount won each day by the champions on Jeopardy in September was approximately $31,611.95.

Step-by-step explanation:

Answer:

243

Step-by-step explanation:

Going in times 3 so 81 x 3 = 243

This could result in one, two, or multiple points of intersection, depending on the specific values of the deposits and the rates of increase.

What is Algebraic expression ?

Algebraic expression can be defined as combination of variables and constants.

we can assume that the graph of Cera's and Bethany's savings accounts will show the total amount of money in their accounts after a certain number of weeks.

Since both Cera and Bethany deposit the same amount of money and make the same additional deposits each week, their savings will increase at the same rate. Therefore, the graph will likely show two parallel lines that start at $20 and increase by $15 per week.

The number of solutions modeled by the graph will depend on whether the two lines ever intersect. If the lines do not intersect, then there is no solution to the system of equations that model the two savings accounts. In other words, there is no point at which the total amount of money in both accounts is the same.

On the other hand, if the lines do intersect, then there is at least one solution to the system of equations. In this case, the point of intersection represents the week at which the total amount of money in both accounts is the same.

To change the situation so that the graphs model a different number of solutions, we could change the initial deposit or the amount of money deposited each week for one or both of the savings accounts. For example, if Cera starts with a higher initial deposit than Bethany, or if Cera deposits more money each week, then their savings will increase at different rates and the lines on the graph will not be parallel.

Therefore, This could result in one, two, or multiple points of intersection, depending on the specific values of the deposits and the rates of increase.

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We are given the following system of equations:

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

x - y = 8 ---(2)

We can solve this system of equations by substitution method.

From equation (2), we have:

x - y = 8

Solving for x, we get:

x = y + 8

Substitute this value of x in equation (1):

y = (1/2)(y+8) + 4

Simplifying and solving for y, we get:

y = 2

Now, substitute this value of y back in equation (2) to find the value of x:

x - 2 = 8

x = 10

Therefore, the solution of the given system of equations is (x, y) = (10, 2).

The variable represents a positive real number, it can be simplified as follows [tex]u^{19/2}[/tex].

The amount that indicates how many times to multiply the base is known as an exponent. The base is the larger number at the bottom, while the exponent is the smaller number on top.

The reverse of an exponent is a root, which involves determining the base given an exponent. Thus, if the square root of 64 has to be obtained, find the number that has been multiplied by itself twice.

The given expression is:

√u¹⁹

Using the exponents rule we have:

[tex]u^{19/2}[/tex]

Hence, the variable represents a positive real number, it can be simplified as follows [tex]u^{19/2}[/tex].

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The scale factor is 2/3 and the value of x and y are 9 and 10 respectively

Two figures are considered to be "similar figures" if they have the same shape, congruent corresponding angles (meaning the angles in the same places of each shape are the same) and equal scale factors. Equal scale factors mean that the lengths of their corresponding sides have a matching ratio.

scale factor = length of new shape/ length of original

= 8/12 = 2/3

x = 6 ÷ 2/3

x = 6 × 3/2

x = 9

y = 15 × 2/3

y = 10

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Answer:

Step-by-step explanation:

We need to divide 8625/1725

I used calculator and got 5.

Kayla has 5 pizzas.

Each pizza has 12 slices so we multiply 5x12.

That is 60.

FAQ:

Why do we multiply 5 by 12?

Answer: Each pizza has 12 slices. If we want to know how many slices 2 pizzas have, we would multiply 12 by 2. The ratio of pizza to slice is 12:1.

Pizza is 12x bigger than individual slice

(I want pizza now)

Answer:

The inequality that represents this relationship is:

b + a < 2b

Answer: m∠G = 41°

Step-by-step explanation:

      Opposite angles of parallelograms are congruent. This means that m∠G = m∠E, so we can write an equation using the given information.

Given:

      m∠G = m∠E

Substitue:

      5x - 9 = 3x + 11

Add 9 to both sides of the equation:

      5x = 3x + 20

Subtract 3x from both sides of the equation:

      2x = 20

Divide both sides of the equation by 2:

      x = 10

      Then, we will substitute this value of x back into the expression for m∠G.

5x - 9 = 5(10) - 9 = 50 - 9 = 41°

Answer:

Step-by-step explanation:

Josslyn burns 7 calories per minute while swimming and 5 calories per minute while practicing yoga. Let x be the number of minutes she spends swimming and y be the number of minutes she spends practicing yoga.

The total number of calories burned, C, is given by:

C = 7x + 5y

To burn at least 500 calories each day, we can write the inequality:

7x + 5y ≥ 500

This inequality states that the total number of calories burned from swimming and practicing yoga, 7x + 5y, must be greater than or equal to 500. Josslyn can achieve this goal by spending a combination of x minutes swimming and y minutes practicing yoga.

Answer:

5

Step-by-step explanation:

The degree of a polynomial is the highest degree of its terms.

Identify the term with the largest exponent on the variable

Identify the degree of each terms

The degree of 8t5 is 5

The degree of 5t4 is 4

Degree of polynomial = 5

The variable y is directly proportional to x, which is the definition of direct variation.

The intersection of two perpendicular lines, the x-axis and the y-axis, results in a 2D plane known as a coordinate plane. In geometry, a coordinate system is a method for calculating the positions of the points using one or more integers or coordinates.

The graph that represents a function with direct variation is a coordinate plane with a line passing through (0, 0) and some other point that is not the origin.

Out of the given options, the graph that represents a function with direct variation is the coordinate plane with a line passing through (negative 4, 0) and (0, negative 2).

This is because the equation of this line can be written in the form y = mx, where m is the slope of the line. In this case, the slope is:

m = (0 - (-2)) / (-4 - 0) = 1/2

So the equation of the line is y = (1/2)x - 2, which is in the form of y = kx, where k = 1/2. This means that y is directly proportional to x, which is the definition of direct variation.

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Answer:

8

Step-by-step explanation:

160×5%

[tex]\frac{160 * 5}{100}[/tex] = 8

The values of f(-10) = 20101 , f(2) = 17 , f(3) = 142.

An expression consisting of variables, coefficients, and non-negative integer exponents is known as polynomial. For example, 2x² + 3x - 5 is a polynomial with three terms. The highest exponent of the variable is the degree of a polynomial. Polynomials can be used to represent many mathematical and scientific concepts, such as curves and functions.

To find f(-10), we need to substitute -10 for x in the given polynomial:

F(-10) = 2(-10)⁴ + (-10)²-10(-10) + 1

= 20000+100+100+1

= 20101

To find f(2), we again substitute 2 for x in the polynomial:

F(2) = 2(2)⁴ + (2)² -10(2) + 1

= 32+4-20+1

= 17

To find f(3), we can use synthetic division with 3 as the divisor. The coefficients of the polynomial are 2, 0, 1, -10, and 1.

F(3) = 142

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Answer:

230

Step-by-step explanation:

trying to find (in this case, 46.0), P is the percentage (20%), and B is the whole amount we're looking for. We can write this equation as:

46.0 = 0.20B

To solve for B, we can divide both sides by 0.20:

B = 46.0 / 0.20

B = 230

Therefore, 20% of 230 is 46.0.