Guysss I need y’all help . Can yalll please help meee ASAP !!!!

The only thing we can say about the line is that x = 12 is a vertical line.

Remember that the general linear equation is:

a*x + b*y = c

Particularly, if we take b = 0, the dependence on y disappears, and then we get a vertical line.

This is just a vertical line that crosses the x-axis at x = 12. (and never crosses the y-axis).

So the only correct option is the first one.

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Answer:

1. Vertical Line

Step-by-step explanation:

The different scenarios given in the question are categorized as legitimate variables or not as given below.

What is a variable?

A variable is a symbol used to denote a mathematical object in mathematics. Any number, vector, matrix, function, function argument, set, or set element can be represented by a variable. A variable is a letter that stands in for an unknown; it always represents a number but can take on several meanings when used in an expression.

a) Numer of states that have a female governor has only one value and it cannot be varied. So it is not a legitimate variable(N).

b) The percentage of state's residents over 65 years of age is a legitimate variable (L) because the number will vary for different states.

c) The highest speed limit in the state is a legitimate variable(L) as the limits are different for different states.

d) Whether or not the state's name consists of one word is a legitimate variable(L) as it varies for different states.

Therefore the different scenarios are categorized as legitimate variables or not.

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Multiplication of the given matrix is not possible by definition of matrix multiplication.

Since, To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

We have to given that;

Expression for multiply,

⇒ [4, 0, -1, 2, -3, -1] x [0, 1, -3, 1]

Since, We can see that;

First matrix have order 1 x 6

And, Second matrix have order 1 x 4

We know that;

Matrix multiplication is possible when number of column in first matrix is same as number of rows in second matrix.

Hence, By given matrices we get;

Number of column in first matrix (6) ≠ number of rows in second matrix (1)

So, Multiplication of the given matrix is not possible by definition of matrix multiplication.

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Answer:

numerical

Step-by-step explanation:

i guess not sure though

Answer:

\(x= \dfrac{\pi}{3}, \;\;x=\dfrac{5 \pi}{3}\)

Step-by-step explanation:

Given trigonometric equation:

\(2 \tan\left(\dfrac{x}{2}\right)- \csc x=0\)

To solve the equation for x in the given interval [0, 2π), first rewrite the equation in terms of sin x and cos x using the following trigonometric identities:

\(\boxed{\begin{minipage}{4cm}\underline{Trigonometric identities}\\\\$\tan \left(\dfrac{\theta}{2}\right)=\dfrac{1-\cos \theta}{\sin \theta}$\\\\\\$\csc \theta = \dfrac{1}{\sin \theta}$\\ \end{minipage}}\)

Therefore:

              \(2 \tan\left(\dfrac{x}{2}\right)- \csc x=0\)

\(\implies 2 \left(\dfrac{1-\cos x}{\sin x}\right)- \dfrac{1}{\sin x}=0\)

  \(\implies \dfrac{2(1-\cos x)}{\sin x}- \dfrac{1}{\sin x}=0\)

\(\textsf{Apply the fraction rule:\;\;$\dfrac{a}{c}-\dfrac{b}{c}=\dfrac{a-b}{c}$}\)

\(\dfrac{2(1-\cos x)-1}{\sin x}=0\)

Simplify the numerator:

\(\dfrac{1-2\cos x}{\sin x}=0\)

Multiply both sides of the equation by sin x:

\(1-2 \cos x=0\)

Add 2 cos x to both sides of the equation:

\(1=2\cos x\)

Divide both sides of the equation by 2:

\(\cos x=\dfrac{1}{2}\)

Now solve for x.

From inspection of the attached unit circle, we can see that the values of x for which cos x = 1/2 are π/3 and 5π/3. As the cosine function is a periodic function with a period of 2π:

\(x=\dfrac{\pi}{3} +2n\pi,\; x=\dfrac{5\pi}{3} +2n\pi \qquad \textsf{(where $n$ is an integer)}\)

Therefore, the values of x in the given interval [0, 2π), are:

\(\boxed{x= \dfrac{\pi}{3}, \;\;x=\dfrac{5 \pi}{3}}\)

Step 1

Solve the quadratic equation for sin x

Step 2

But m = sin x

Answer:

$55+$9x≥$199

You must work for at least 16 hours to be able to buy the bicycle.

Step-by-step explanation:

Let x represent the number of hours you need to work to buy the bicycle.

You already have $55.

⇒$55+ −−−−−≥ −−−−−

You also earn $9 per hour.

Algebraically, this can be written as 9x.

⇒$55+$9x≥ −−−−−

You need to earn at least $199 to buy the bicycle.

⇒$55+$9x≥$199

The ≥ sign is used because the left-hand side of the inequality must be "greater than or equal to" $199.

Let's find out how many hours you need to work to buy the bicycle.

Subtracting $55 from both sides of the inequality:

⇒$55−$55+9x≥$199−$55

⇒$9x≥$144

Dividing both sides by $9:

⇒$9x$9$=$144$9

∴x≥16

Therefore, you need to work at least 16 hours to afford the bicycle.

Area of the given heptagon = 364 square unit.

The given figure is regular heptagon,

length of each side = 10

Distance between Centre and edge = 10.4

Since we know that,

A seven-sided polygon with seven angles, seven vertices, and seven edges is known as a heptagon. They may have the same or different length dimensions. It is a closed figure, and a regular heptagon is one with all equal seven sides.

Now,

Perimeter of the given heptagon = 7x10

                                                       = 70

Area of heptagon = perimeter x 10.4/2

                              = 70 x 5.2

                              = 364

Hence,

Area = 364 square unit.

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Answer:

x = (3/5, -3/5)

Answer:

y=3x-1

Step-by-step explanation:

To find the linear function you first need to put the equation into standard slope intercept form which is y=mx+b. m represents the slope and b represents where the line intercepts the y axis.

To figure it out you need to solve for y.

y-5=3(x-2)

Expand 3(x-2) to 3x-6.

y-5=3x-6

Isolate the y by adding 5 to both sides, giving you y=3x-1.

The slope is 3 and the Y intercept is -1.

A rectangle measuring 8 inches by 6 inches needs squares of side. A function in an in which the box's volume is 4a³-28a²+48a.

Given that,

A square measuring 8 inches by 6 inches needs squares of side. A cut out of each corner so that the sides can be folded into a box without a top.

How much area a box can occupy is determined by its volume. You need to know a box's length, width, and height in order to compute its volume. By multiplying the base area by the box's height, one can get the volume of a box.

The measurement of how much space an object may occupy is called volume, which is also known as capacity. Both regular and irregular objects may be present. Cubes, blocks, cylinders, pyramids, cones, and spheres are examples of common objects.

A:  area of the base

L: Length of the base

W: Width of the base

V(a)= (8-2a) (6-2a) (a)

V(a)= (48-16a-12a+4a²) (a)

V(a)= (48-28a+4a²) (a)

V(a)= 48a-28a²+4a³

V(a)=4a³-28a²+48a

Therefore, a function in an in which the box's volume is 4a³-28a²+48a.

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Answer: 18x

___________________________________

We need 3 numbers that equal 10 when multiplied. 1, 5, and 2 are what come to mind for me.

1x5=5

5x2=10

---

hope it helps

Answer:

27y + 6r

Step-by-step explanation:

use the distributive property

3 * 9y = 27y

3 * 2r = 6r

27y + 6r

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Answer:

  5x^3 -80x = 5x(x -4)(x +4)

Step-by-step explanation:

The denominator factors are ...

  (x -4)(x +4)

  x

  5(4 -x) = -5(x -4)

The unique factors are 5, x, (x -4), (x +4). The LCD is the product of these:

  5x(x^2 -16) = 5x^3 -80x

_____

Additional comment

When expressed over the LCD, the expressions are ...

  5x^2/(5x^3 -80x), 20(x^2 -16)/(5x^3 -80x), -8x(x +4)/(5x^3 -80x)

to get the slope of any straight line, we simply need two points off of it, let's use those in the picture below

\((\stackrel{x_1}{-1}~,~\stackrel{y_1}{3})\qquad (\stackrel{x_2}{2}~,~\stackrel{y_2}{-3}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-3}-\stackrel{y1}{3}}}{\underset{run} {\underset{x_2}{2}-\underset{x_1}{(-1)}}} \implies \cfrac{-6}{2 +1} \implies \cfrac{ -6 }{ 3 } \implies \text{\LARGE -2}\)

Answer:

The slope is 2

Step-by-step explanation:

To find the slope you divide the rise by the run. Rise being how many units it goes up or down) (run being how many units it goes to the side).

In this case the rise is -2 and the run is -1.

See in the picture, for every 2 units the line goes down, it moves one unit to the right.

so, -2/-1= 2

Step-by-step explanation:

To determine the value of x that satisfies the expression x^2 + 3x - 5 when x = 9, we simply substitute 9 for x and evaluate the expression:

9^2 + 3(9) - 5 = 81 + 27 - 5 = 103

Therefore, when x = 9, the expression x^2 + 3x - 5 evaluates to 103.

rate my answer, please.

Answer:

8 cups

Step-by-step explanation

8 cups. There are 2 cups in one pint and two pints in one quart. To Get 8 cups all you do is multiple the quartz by 2 to get the amount of pints, and multiply the pints by 2 to get the number of cups. Thus the equation would be 2 * 2 = 4 and 4 * 2 = 8.

Answer:

D. 8 cups

Step-by-step explanation:

1 Quart is 4 cups therefore you multiply

4 x 2 = 8

The solution is: Piece-wise function

f(x)=x+6 , x≤1

f(x) = x^2 + 3 , x>1, the following functions is graphed below.

Option C is correct.

Explanation:

We are given a graph of piece-wise function which break at x=1

We need to choose correct option for graph.

Function is break at x=1.

We will get two function

For x≤1 and x>1

As we can see x≤1, graph is linear and x>1 graph is parabolic.

Equation of linear graph, x≤1

Take two point of graph (0,6) and (-6,0)

Equation of line:

y-y1/y2-y1 = x-x1/x2-x1

y = x+1

f(x)=x+6 , x≤1

Equation of parabolic graph, x>1

f(x) = x^2 + 3

Piece-wise function

f(x)=x+6 , x≤1

f(x) = x^2 + 3 , x>1

Please see the attached figure.

Hence, The option C is correct.

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Answer:

7/4≤x ≤-1

Step-by-step explanation:

Given the set of inequalities

−5x−3≥2 and 4x−2≥5

We are to write the solution in interval notation. We need to solve them individually first as shown;

For −5x−3≥2

add 3 to both sides

−5x−3+3≥2+3

-5x ≥5

divide both sides by -5 (note that dividing by a negative value will change the sense of the inequality sign)

-5x/-5 ≤5/-5

x ≤ -1

For the inequality 4x−2≥5;

add 2 to both sides

4x−2+2≥5+2

4x≥7

divide both sides by 4;

4x/4 ≥ 7/4

x≥7/4 or 7/4≤x

Combining 7/4≤x and x ≤ -1, the solution in interval notation is expressed as 7/4≤x ≤-1

Answer: PNM and MNP

Step-by-step explanation:

I'm going to assume that the marked angle is the one with the red triangle. We name angles using 3 letters, for example angle ABC. The middle letter should always be the vertex or tip of the angle, but the order of the first and third letter can be switched. For example, angle ABC is the same as angle CBA, but angle ABC and angle ACB are not the same angle.

In this case, our vertex is N, and our angle ends are P and M. As previously stated, the vertex must be in the middle, so our angle will be named _N_. However, P and M can be switched and it is still the same angle. This means that 2 ways to name the angle are angle PNM and angle MNP.

The snowstorm resumes at a consistent rate of 2 inches per hour after 5 hours. Draw a second diagonal line with a slope of 2 as a result. Points 7 and 10 should be the beginning and finish of this line, respectively (14,18).

The resulting graph should include a horizontal line at y=10 from (0,4) to (2,10), a diagonal line with a slope of 2 from (7,10) to (0,4), and a horizontal line at y=3 from (0,4) to (0,10). (14,18).

Graphs are visual representations of data that show how any two variables relate to one another. Without requiring a lot of words, they are frequently used to communicate complex and large amounts of data. A specific amount of data must be gathered through surveys or experiments before a graph may be created.

To create the graph of the snow on the ground over time, we can follow these steps:

Start with a point at (0,4) since at the beginning of the storm there were 4 inches of snow on the ground.

From this starting point, draw a diagonal line with a slope of 3, representing the constant rate of snowfall of 3 inches per hour. This line should have a y-intercept of 4 and an x-intercept of 2 (since 6 inches of snow fell in 2 hours).

After the 6 inches of snow have fallen, the snowstorm stops for 5 hours. During this time, the snow on the ground remains the same. So, draw a horizontal line at the y-value of 10 (since there are 10 inches of snow on the ground after the first 6 inches fall).

After 5 hours, the snowstorm starts again at a constant rate of 2 inches per hour. So, draw another diagonal line with a slope of 2. This line should start at the point (7,10) and end at the point (14,18).

The resulting graph should have a diagonal line with a slope of 3 from (0,4) to (2,10), a horizontal line at y=10 from (2,10) to (7,10), and a diagonal line with a slope of 2 from (7,10) to (14,18).

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Answer:  (54 x 18) x (1/10 x 1/100)

Step-by-step explanation: Multiply (54 x 18) x (1/10 x 1/100) , Reduce The Numbers (972 x 1/100) , Calculate (243 x 1/250)= 243/250=Alternatnative Form: 0.972

Answer:

B.concurrency.

Step-by-step explanation:

Three or more lines when met at a single point are said to be concurrent and the point of intersection is point of concurrency.

Answer:

1 hr = $60.20

2 hrs. = $120.40

3 hrs. = $180.40

4 hrs. = $240.80

5 hrs. = $301.00

Step-by-step explanation:

Multiply 60.20 by the number of hours to get your answers.

Ex: $60.20 (amount every hour) x 2 (number of hours) = $120.40

The set is 11, 15, 19, 12, 11, 16, 11, 17

Mean = 14

Median = 13.5

Range = 8

Midrange = 15

It is the average value of the set given.

It is calculated as:

Mean = Sum of all the values of the set given / Number of values in the set

We have,

The set:

11 15 19 12 11 16 11 17

The sum of the set:

= 11 + 15 + 19 + 12 +11 +16 + 11 + 17

= 112

Mean:

= 112 / 8

= 14

Median:

Arrange the set in ascending order.

11, 11, 11, 12, 15, 16, 17, 19

The Median is the mid-value of the set.

Median = (12 + 15) / 2 = 27/2 = 13.5

Range:

Highest value in the set = 19

Lowest value in the set = 11

Range = Highest value - Lowest value

= 19 - 11

= 8

Midrange:

= (Highest value + Lowest value) / 2

= (19 + 11) / 2

= 30/2

= 15

Thus,

If the set is 1, 15, 19, 12, 11, 16, 11, 17.

Mean = 14

Median = 13.5

Range = 8

Midrange = 15

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Step-by-step explanation:

(a) The lower limit of the 90% confidence interval can be calculated using the formula:

lower limit = sample mean - margin of error

Plugging in the given values, we have:

lower limit = 7.43 - 1.32

lower limit = 6.11 (rounded to 2 decimal places)

Therefore, the lower limit of the 90% confidence interval is approximately 6.11 hours per night.

(b) If 500 random samples like this were selected, and a 90% confidence interval was constructed using each sample, the expected number of intervals that would contain the population mean can be approximated using the margin of error as a guide.

Since the margin of error is 1.32 hours, we can expect roughly 90% of the confidence intervals to contain the true population mean. Therefore, out of 500 samples, we would expect approximately:

500 * 0.9 = 450

So, approximately 450 of these confidence intervals would contain the population mean.

9514 1404 393

Answer:

  A) 80°

Step-by-step explanation:

The sum of the angle measures in this hexagon is ...

  (6 -2)×180° = 720°

Then the value of x (in degrees) can be found from ...

  x + 2x = 720 -78 -134 -136 -132 = 240

  x = 240/3 = 80

The value of x is 80 degrees.

Answer:

A. 80°

Step-by-step explanation:

As we know that the sum of measures of angles of hexagon is 720 ° .

78° + 134 ° + 136 ° + 132 ° + 2x + x = 720°

combine like terms

480° + 3 x = 720°

subtract 480° from both side

480 ° - 480° + 3 x = 720° - 480°

3 x = 240°

Divide each side by 3

3x / 3 = 240°/3

x = 80 °.

Hence, value of x = 80°

Verification :-

if x = 80°

then ,

2x = 2 × 80° = 160°

Now, Sum of all angles of hexagon is

78° + 134 ° + 136 ° + 132 ° + 160° + 80° = 720°

Answer:

Step-by-step explanation: