Please help me!!

20points!!

Answer:

  9x -4y = -44

Step-by-step explanation:

You want the equation of the line through (-4, 2) and perpendicular to the line through (-4, 6) and (5, 2).

The equation of a line through (h, k) and perpendicular to the line through (x1, y1) and (x2, y2) can be written as ...

  (x2 -x1)(x -h) +(y2 -y1)(y -k) = 0

Using the given points, this becomes ...

  (5 -(-4))(x -(-4)) +(2 -6)(y -2) = 0

  9(x +4) -4(y -2) = 0

Expanding this gives the general form equation:

  9x -4y +44 = 0

Subtracting the constant gives the standard form equation:

  9x -4y = -44

Answer:

280

Step-by-step explanation:

All you have to do is 7x4 and look for how many 0's there are in the equation and add them on.

ANSWER

x = 9

EXPLANATION

From the question, we see that DE is the midsegment of the triangle ABC.

According to the Midsegment Theorem:

DE = 1/2 * AC

=> AC = 2DE

Therefore, we have that:

3x - 15 = 2 * 6

3x - 15 = 12

Collect like terms:

3x = 15 + 12

3x = 27

Divide through by 3:

x = 27 / 3

x = 9

That is the value of x.

Answer:

65/100 that is the answer to this question

The correct option regarding the mean of X + Y is given as follows:

a. MX+MY.

The mean of a data-set is obtained as the sum of all observations in the data-set divided by the number of observations.

Hence, when two variables are added, we can add their means, as we add all the observations and divide by the number of observations, considering the two variables.

This means that the correct option is given by option A.

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Answer:

75=100%

Step-by-step explanation:

15=20%

30=50%

75=100%

The Expected Value for the player is -$2.40, which is negative. This means that on average, the player can expect to lose $\(2.40\) for each game played.

To calculate the Expected Value for the player, we can multiply the probability of winning by the amount won, and subtract the probability of losing by the amount paid.

Expected Value = (Probability of Winning * Amount Won) - (Probability of Losing * Amount Paid)

Given the following information:

Probability of winning \(= 0.13\)

Amount won = $15

Probability of losing \(= 0.87\)

Amount paid = $5

Plugging these values into the formula:

Expected Value \(= (0.13 \times $15) - (0.87 times $5)\)

Expected Value \(= $1.95 - $4.35\)

Expected Value = \(-$2.40\)

If a person plays this game a very large number of times over the years, we expect them to come out financially behind, as the Expected Value is negative. This indicates that, on average, the player will lose money over time by playing this game repeatedly.

Therefore, The Expected Value for the player is -$2.40, which is negative. This means that on average, the player can expect to lose $2.40 for each game played.

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10^12 in standard number is 1000000000000

The number is given as:

\(10^{12\)

Expand the expression

\(10^{12} = 10 * 10 * 10 * 10 *10 * 10 * 10 * 10*10 * 10 * 10 * 10\)

Evaluate the product

\(10^{12} = 1000000000000\)

Hence, 10^12 in standard number is 1000000000000

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Answer:

x=45  y=137.5

Step-by-step explanation:

2x=90

x=45

One angle is 45. Another angle is 90.

The total angle sum would be 360

So

45+90+y+(y-50)=360

135+y+y-50=360

85+2y=360

2y=275

y=137.5

Since the two lines with red arrows are parallel, that means the two angles on the left are both 90º angles.  

2x = 90

or x = 45

Now, 2x + 90 + y + (y-50) = 360, since this is a quadrilateral and we know 2x=90.

So 90 + 90 + y + y-50 = 360

or 2y + 130 = 360

or 2y = 230

or y = 115

To check, add up the angles to make sure it adds to 360:

90 + 90 + 115 + 65 = 360.

Answer:

4 cookies

Step-by-step explanation:

The remainder of (7x12)/5 is your answer.

Answer:

65

Step-by-step explanation:

just took the quiz.com

A scatter plot of the data is shown in the image attached below.

An equation for the least squares regression line (trend line) is y = -3.49x + 93.14

In order to determine a linear equation for the least squares regression line (trend line) that models the data points contained in the table (see attachment), we would have to use a scatter plot.

In this scenario, the number of absences would be plotted on the x-axis of the scatter plot while the algebra grade would be plotted on the y-axis of the scatter plot.

On the Excel worksheet, you should right click on any data point on the scatter plot, select format trend line, and then tick the box to display an equation for the trend line on the scatter plot.

From the scatter plot (see attachment) which models the relationship between the number of absences and algebra grade in the table, a linear equation for the least squares regression line (trend line) in terms of the problem is given by:

y = -3.49x + 93.14

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The figure labelled JKLM is a kite and the length ML is equal to 11.

A kite is a quadrilateral that have two pairs of equal length of sides and these sides are adjacent to each other. It can be viewed as a pair of congruent triangles with a common base.

The line JM bisects the kite into two congruent triangles, and thus;

the lengths ML and MK are equal.

ML = 5x - 4 and MK = 2x + 5 so;

5x - 4 = 2x + 5 {collect like terms}

5x - 2x = 5 + 4

3x = 9

x = 9/3 {divide through by 3}

x = 3

we substitute 3 for x;

ML = 5(3) - 4

ML = 15 - 4

ML = 11

Therefore, the value of length ML for the kite is equal to 11.

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Answer:

1) B

2) B

Step-by-step explanation:

1) funtion 1 slope is 4

function 2 we use y2-y1/x2-x1

10-6/3-1

4/2

2 is the slope of function 2

so function 1 is bigger

1) only b is correct because it lands on the same line of y=x

hopes this helps please mark brainliest

Answer:

Step-by-step explanation:

3.6*

It is very easy to find the perimeter of a square when its area is given in the question. For that, you only ned to know one fomula. That formula is: Area = side^2

For this particular question, the given value for the area of the square is 36 sq.cm. So, we can solve for the side(s) by substituting the given value in the above mentioned formula.

We get

36 = s^2

Now, we need to get the square root of both sides, which gives us

s = √36 s = 6 cm

Since all the sides of a square are equal in length, the side length is 6 cm. Now to determine the perimeter, we must multiply the side length by 4 (because there are 4 equal sides in a square). That gives us Perimeter = 4 x side length Perimeter = 4 x 6 cm.

Therefore, the perimeter of the square is 24 cm.

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Answer:

y =4 and x=6 hope it may help u

Answer:1200

Step-by-step explanation:1200

Answer: If I did it correctly it should be 150.8

Step-by-step explanation:

The formula for the volume of a cylinder is height x π x (diameter / 2)2, where (diameter / 2) is the radius of the base (d = 2 x r), so another way to write it is height x π x radius2.

Hope this helps!

Solution

Step-by-step explanation:

Given

There are 7 bulbs out of which 1 is Yellow and 1 is Pink and 1 is white

If a gardener randomly select 6 bulbs

Then the Probability of selecting yellow = 1/7

probability of selecting white = 1/7

and the probability of selecting pink = 1

Therefore the correct answer is 0.0238

First, we transform the mixed fraction into an improper fraction:

Now, we divide 32 and 20 and get:

Answer: 1.6

Answer:

n/a

Step-by-step explanation:

The value of the expression is -7.

We have,

-2 (3y + 7) = 28

(given)

-6y - 14 = 28

(distributive property)

-6 - 14 + 14 = 28 + 14

(addition property of equality)

-6y = 42

(simplifying)

-6y/-6 = 42/-6

(Division property of equality)

y = -7

Thus,

The value of the expression is -7.

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The volume of the cylinder is 150.72 cm³ ⇒ last answer

The volume of the cone is 314 cm³ ⇒ 1st answer

The volume of the pyramid is 160 cm³ ⇒ 2nd answer

The volume of the pyramid is 48 cm³ ⇒ 3rd answer

Step-by-step explanation:

* Let's revise the volumes of some shapes

- The volume of the cylinder of radius r and height h is:

V = π r² h

- The volume of the cone of radius r and height h is:

V = 1/3 π r² h

- The volume of the pyramid is:

V = 1/3 × its base area × its height

* Lets solve the problem

# A cylinder with radius 4 cm and height 3 cm

∵ V = π r² h

∵ π = 3.14

∵ r = 4 cm , h = 3 cm

∴ v = 3.14 (4)² (3) = 150.72 cm³

* The volume of the cylinder is 150.72 cm³

# A cone with radius 5 cm and height 12 cm

∵ V = 1/3 π r² h

∵ π = 3.14

∵ r = 5 cm , h = 12 cm

∴ V = 1/3 (3.14) (5)² (12) = 314 cm³

* The volume of the cone is 314 cm³

# A pyramid with base area 16 cm² and height 30 cm

∵  V = 1/3 × its base area × its height

∵ The area of the base is 16 cm²

∵ The height = 30 cm

∴ V = 1/3 (16) (30) = 160 cm³

* The volume of the pyramid is 160 cm³

# A pyramid with square base of length 3 cm and height 16 cm

∵  V = 1/3 × its base area × its height

∵ The area of the square = s²

∵ The area of the base = 3² = 9 cm²

∵ The height = 16 cm

∴ V = 1/3 (9) (16) = 48 cm³

* The volume of the pyramid is 48 cm³.

Step-by-step explanation:

(2xy + 5y)2 = 4xy + 10y

Topic: algebraic manipulation

If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!

Answer:

4xy+10y

Step-by-step explanation:

(2xy+5y)2

4xy+10y

The time it takes is 12 hours to travel 5,160 Miles.

The time is take can be calculated as follows?

The first is calculate the speed of jet plane in miles/hour (mph)

= 1,290 / 3

= 430 mph

Next is to calculate the time is take to travel 5,160 by dividing the distance by the speed

= 5,160 / 430

= 12 hours

Thus, the time it takes is 12 hours.

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Answer:

47 hours

Step-by-step explanation:

[606 -(12×40)]/(1½×12) =

(606-480)/(18) =

126/18 = 7

the total working hours = 40+7 = 47 hours

Answer:

47 hours

Step-by-step explanation:

First, we do 12 times 40, the answer we get is 480 dollars.

Then, we do 606 minus 480, the answer we get is 126.

Next, we do 126 divided by 18, and we get 7

Therefore, the total hours is 47 hours.