PLSS HELP I DO NOT UNDERSTAND THIS PLSSS bc

Answer:

y=2x+5, y=4x, y=-3+9/2x

Step-by-step explanation:

8x+4y=20 turns into:

y=2x+5

3y-12x=0 turns into:

y=4x

9x-2y=6 turns into:

y=-3+9/2x

Explanation

Step 1

get the slope-intercep form_

we need to use the function to graph the line,so let's convert the given equation in the slope-intercept form,to do that, isolate y

so

so, the equation of the line is

Step 2

now, let's use the equation to find 2 coordiantes of the line

a) for x =0

b) for x= 3

Step 3

finally, draw a line that passes through the points (0,0) and (3,2)

I hope this helps you

Answer:[tex]\left(x^2+1\right)\left(5x^6-5x^4+5x^2-6\right)[/tex]

Step-by-step explanation:

We will have that the lateral area will be the following:

*First, we can see that if we were to cut a straight vertical line and unfold the label, we would get a rectangle, thus the surface area of the label will be given by:

Here h is the height of the label and C is the circumference of the base, that is:

Now, we determine the radius of the base, that is:

Now, we replace the values and solve for the surface area:

So, the surface area of the label on the can is approximately 32.7 squared inches.

If m || n and line t cuts them, the value of x is 17 degree

Given that, the line m || line n. and we need to find the value of x

If two lines are parallel and a transversal cuts them then the corresponding alternate interior angles are equal.

Here, line m and line are parallel anf the transversal t cuts them, so the alternate interior angles will be same

2x - 5 = 3x - 22

2x - 3x = - 22 + 5

- x = - 17

x = 17

Therefore, if m || n and line t cuts them,  the value of x is 17 degree

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A triangle prima has six vertices. A triangular prism has five faces, three rectangular and two triangular, nine vertices, and six edges.

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Recall the definition of the cosecant function in terms of the sine function:

Draw the angle -210º in the unit circle to find a reference triangle for that angle:

Notice that a 30-60-90 triangle is formed:

Since the side opposite to the 30º angle has a length of 1/2, then:

On the other hand, notice that since the angle of -210º lies in the second quadrant, then the value of sin(-210º) is positive:

Use the definition of the cosecant function to find csc(-210º):

Therefore, the value of csc(-210º) is equal to 2.

The lengths of the major and minor axis of the ellipse, [tex] \displaystyle{ \frac{ {(x - 3)}^{2} }{12} +\frac{ {(y + 4)}^{2} }{24} = 1}[/tex] are;

An ellipse describes the locus of a point on a curve, such that the sum of the distance from two focal points from the points on the curve is a constant.

The given given function of the ellipse can be presented as follows;

[tex] \displaystyle{ \frac{ {(x - 3)}^{2} }{12} +\frac{ {(y + 4)}^{2} }{24} = 1}[/tex]

The above equation can be compared to the standard equation of an ellipse as follows;

[tex] \displaystyle{ \frac{ {(x - h)}^{2} }{ {b}^{2} } +\frac{ {(y - k)}^{2} }{ {a}^{2} } = 1}[/tex]

Where;

(h, k) = The coordinates of the center of the ellipse

a = The length of the semi major axis

b = The length of the semi minor axis

By comparison, we have;

(h, k) = (3, -4)

a = √(24) = 2•√6

b = √(12) = 2•√3

The length of the major axis = 2•a

The length of the minor axis = 2•b

The length of the major axis is therefore;

2•a = 2 × 2•√6 = 4•√6

The length of the minor axis is therefore;

2•b = 2 × 2•√3 = 4•√3

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Answer:

your answer is in the screenshot

Step-by-step explanation:

Answer: 26.25%  basketball practice

Step-by-step explanation: At basketball practice I made 21 out of 80 shots.

Therefore the percentage of shots I made is = 21/80×100%

                                                                          =26.25%

For this problem we use the arcs and chords theorem we know that

Solving for x we get:

Finally, we substitute x for mDH=(11x+7) degrees=(11*15+7) degrees=172 degrees.

mDH=172 degrees.

In the given scenario, in order to calculate an 88% confidence interval, the z statistics that fall at each line marking the middle 88% of scores in the distribution would be +/- 1.555 (from the table).

Hence the z score = 1.5550

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Answer: Congruent angles are the angles that have equal measure. So all the angles that have equal measure will be called congruent angles. They are seen everywhere, for example, in equilateral triangles, isosceles triangles, or when a transversal intersects two parallel lines.

Step-by-step explanation:

A sale price for the bicycles that would allow this company to achieve a profit of $189,800 is: B. $230.

In order to determine the sale price for the bicycles that would make it possible for this company to achieve a profit of $189,800, we would simply evaluate the profit function by substituting the value of the profit as follows:

P(x) = −2x² + 920x + 84,000

189,800 = −2x² + 920x + 84,000

Re-arranging the profit function by collecting like terms, we have:

2x² + 920x + 189,800 - 84, 000 = 0

2x² - 920x + 105,800 = 0

Dividing both sides by 2, we have:

x² - 460x + 52,900 = 0

Next, we would solve the quadratic equation by using factorization method:

x² - 230x  -230x + 52,900 = 0

x(x - 230) + 230(x - 230) = 0

(x - 230)(x + 230) = 0

x = 230 or -230

Since the price cannot be negative, the required sale price for this company is equal to $230.

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Complete Question:

A bicycle company has designed and built a new model of sports bicycle. They have determined that the profit for the sale of the bicycles can be modeled by the function P(x) = −2x² + 920x + 84,000, where x is the price of each bicycle. Which of the following is a sale price for the bicycles that will allow the company to achieve a profit of $189,800?

A. $210

B. $230

C. $250

D. $270

EXPLANATION

Given the equation:

2(x+7) = 6x + 9 -4x

Applying distributive property:

2x + 14 = 6x + 9 -4x

Adding similar terms:

2x + 14 = 2x + 9

Subtracting -2x to both sides:

14 ≠ 9

--->The equation hasn't got solution.

Answer:

(if am not wrong)

The main disadvantage of using a check cashier is that, 'You pay a higher fee to cash checks at a check casher than at a bank'

Check casher;

A check casher is someone who works in the check-cashing industry, with the exception of someone who doesn't cash checks for others on any one day that total more than $1,000 in cash, money, or other assets.

Disadvantage of Check cashers;

Fees for cash checking services can be as low as $1 or as much as 2% of the check amount depending on where you are. These costs reduce one's capacity to make ends meet or have extra money available. Always be aware of the prices and fees before using a check cashing service.

That is,

The main disadvantage of using a check cashier is that, 'You pay a higher fee to cash checks at a check casher than at a bank'

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An average speed can be calculated from a distance time graph through the division is change in distance and change in its corresponding time.

A distance time graph is a type of graph that show the distance covered by an object with respect to time.

When plotting a distance time graph, the distance is plotted in the y-axis while time is plotted of the X -axis and a suitable scale of used to fill in the observed figures.

Speed is the product of distance travelled by an object with respect to its time. Therefore, an average speed can be calculated through the division is change in distance and change in its corresponding time.

That is ; average speed= ∆speed/∆ time

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GIVEN:

We are given a frequency distribution table showing different classes of hours of study and the frequency of each class of data.

Required;

To determine the relative frequency for the third class

Step-by-step solution;

For a relative frequyency, we need to find the number of times an event occurs and express it as a fraction of the total events that occured in the survey/experiment.

The events in this case are hours of study and the occurrence is the total frequency for all classes of hours of study.

The total frequency is;

The relative frequency for the third class therefore would be;

ANSWER:

The relative frequency of the third class therefore is

The area of the rectangle is, 128 square inches.

What is perimeter, area?

The area of a shape or figure is the area it occupies, whereas the perimeter of a shape is the distance it encircles on all sides. 

The square unit or unit2 is used as the unit of area, and the unit is also used for the perimeter.

Given: A rectangle has a length that is twice the size of its width. The perimeter of the rectangle is 48 inches.

Suppose the width of the rectangle is x.

So, the length is 2x.

As perimeter is 48 inches.

So, x + x + 2x + 2x = 48

6x = 48

x = 8 inch.

The width of the rectangle is 8 inches.

Therefore, the length of the rectangle is 2x = 2(8) = 16 inches.

Now to find area of the rectangle,

Since,

Area of rectangle =  length x width

                             =  16 x 8

Area of rectangle = 128 inch^2.

Therefore, the area of the rectangle is 128 square inches.

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Answers:

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Explanation:

Question 1

27x^6 = (3x^2)^3 which is one cube and y^3 is another cube

Therefore 27x^6+y^3 is a sum of two cubes.

It might help to think of it like A^3+B^3 where in this case A = 3x^2 and B = y.

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Question 2

81 isn't a perfect cube since 81^(1/3) = 4.3267 approximately, which isn't a whole number. We need 81^(1/3) to be a whole number if we wanted 81 to be a perfect cube.

We don't even need to check b^15 since 81 being a non-perfect cube means the entire expression cannot be a sum of two cubes, nor a difference of cubes.

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Question 3

64x^3 = (4x)^3 is a perfect cube

but 9z^9 is not a perfect cube

We can see this if we computed 9^(1/3) and the result is a non-whole number.

The answer here is the same as the previous question.

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Question 4

36^(1/3) is not a whole number, so 36 isn't a perfect cube. By extension  36m^12 isn't a perfect cube either. The answer is the same as questions 2 and 3.

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Question 5

1 is a perfect cube since 1 = 1^3

d^12 is a perfect cube because d^12 = (d^4)^3

Therefore, we have a difference of two cubes.

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Question 6

729^(1/3) = 9 which rearranges to 9^3 = 729, showing 729 is a perfect cube.

However y^29 is not a perfect cube since the exponent 29 is not a multiple of 3.

The overall expression is "neither".

----------------------------------------

Question 7

343^(1/3) = 7 rearranges to 7^3 = 343, showing 343 is a perfect cube

y^6 is a perfect cube since (y^2)^3, i.e. the exponent 6 is a multiple of 3.

We have a difference of cubes.

----------------------------------------

Question 8

4 isn't a perfect cube since 4^(1/3) results in some decimal value that isn't a whole number. The entire expression is neither a sum nor difference of cubes.

----------------------------------------

Question 9

144^(1/3) isn't a whole number, so we get a similar result to problem 8.

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Question 10

64j^6 = (4j^3)^3 is one cube

k^9 = (k^3)^3 is another cube

We have a difference of cubes

Answer:

answer of 1st picture

second is not under standing much

Given the following data set:

[13,13,13,15,15,16,16,17,17]​

Let's determine the median.

Step 1: Arrange the data points from smallest to largest.

The set is already arranged in ascending order.

[13,13,13,15,15,16,16,17,17]​

Step 2:

a.) If the number of data points is odd, the median is the middle data point in the list.

b.) If the number of data points is even, the median is the average of the two middle data points in the list.

There are 9 data in the set, it is odd. The middle data is the 5th data.

[13,13,13,15,15,16,16,17,17]​

The 5th data is 15.

Therefore, the median of the given set of data is 15.

The equation of a line through the origin and (-5,6) is y =  -1.2x

It is important to note that the equation of a line is expressed as;

y = mx + c

Where;

From the information given, we have the points;

(0, 0) and ( -5, 6)

The formula for slope is given as;

slope, m = y₂ - y₁/ x₂ -x₁

slope, m = 6 - 0/ -5 - 0

slope, m = 6/ -5

slope, m = - 1. 2

To determine the intercept, we have;

6 = -1. 2(-5) + c

expand the bracket

c = 6 - 6

c = 0

The equation is given as;

y = -1.2x

Hence, the equation is y = -1.2x

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Answer: She can make 72 cupcakes.

Step-by-step explanation:

Using mathematical operations, we can say that the extra pink sand avaliable to each girl is 1/16.

So, more pink sand is available to each girl:

Sand available to each girl:

Pink sand more to each girl:

Therefore, using mathematical operations, we can say that the extra pink sand avaliable to each girl is 1/16.

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