BE is the perpendicular bisector of AD. Find the value of each variable.
14. AC = 5x - 7 and DC = 8x - 28
15. m/ACB = (7y - 8)°

Answer:

Step-by-step explanation:

its ratio

We need to know the concept of mean and standard deviation to solve the problem.The standard deviation of the data set is 18.36

The given dataset is 1,2,3,3,4,4,4,4,5,5,6,70, inorder to find the standard deviation of the data set we need to first find the mean of the dataset. Mean of a dataset means the average of the set of numbers. We divide the sum of all the numbers in the data set by the size of the set. We represent mean by μ.

μ=[tex]\frac{1+2+3+3+4+4+4+4+5+5+6+70}{12} =\frac{111}{12} =9.25[/tex]

Standard deviation measures the dispersion of a dataset relative to it's mean, the square of standard deviation is variance.

The formula for standard deviation is :

σ=[tex]\sqrt{\frac{(1-9.25)^{2}+(2-9.25)^{2} +...+(70-9.25)^{2} }{12} } =\sqrt{\frac{68.0625+52.5625+78.125+110.25+36.125+10.5625+3690.5625}{12} } \\=\sqrt{\frac{4046.25}{12} } =\sqrt{337.1875} =18.36[/tex]

Thus we found the standard deviation of the data set to be 18.36

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Answer: + or - in between the 3x and 6? Can be either 7 or 3

Step-by-step explanation:

3x+6=15.

Subtract '6' on both sides.

3x=9.

Divide by '3'.

x=3

3x-6=15.

Add '-6' on both sides.

3x=21

Divide by '3'.

x=7

Again, it solely depends on your sign in between the first two numbers.

Answer:

1/5 = slope of line

Step-by-step explanation:

Here, slope = rise/run = (larger y value) - (smaller y-value)/(larger x -smaller x)

Here we get slope = rise/run = (3 - 2) (4 - [-1]) = 1/5 = slope of line

The percentage decrease is 9.83%.

The previous year Springfield middle school students were 620. This year it is 559 students.

Here we have to find the decrease in the percentage of students from the previous year.

The decrease in the students = 620- 559

                                                 = 61

Percentage decrease = (decrease/number of students last year)× 100

                                    = (61/ 620 )× 100

                                    = 0.09838 ×100

                                    = 9.83%

Therefore the percentage decrease in the number of students from the previous year is 9.83%

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By using the trigonometric function of cosine, we conclude that the length of the hypotenuse is approximately equal to 7.2 units.

Right triangles are triangles such that one of its internal angles is a right triangle. Fundamentally, trigonometric functions are relationships between two distinct sides of a right triangle.

The picture show that the length of one leg and the measure of the angle between that leg and the hypotenuse are known, but the length of the hypotenuse does not. By using concepts of trigonometric functions, we can find the length of the hypotenuse by using the cosine function:

cos θ = s / x

cos 33° = 6 / x

x = 6 / cos 33°

x = 6 / 0.839

x ≈ 7.154

The length of the hypotenuse is approximately equal to 7.2 units.

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Answer:

a=11, b=10, c=32, and d=14.

Step-by-step explanation:

Answer:

67 units

Step-by-step explanation:

Perimeter  of a shape is the sum of all sides.

Perimeter = a + b + c + d

                = x +7  + 2x + 2 + 8x + x +10

                = x + 2x + 8x + x  +7 + 2 + 10

Combine like terms,

                 = 12x + 19

Now, substitute x = 4 in the above expression,

                  = 12*4 + 19

                  = 48 + 19

                  = 67

Answer:

183/100

Step-by-step explanation:

hope this works :)

Answer:

183/100 as a fraction of 1.83

profit is 20000 and profit percent is 5.79

Total charge by company A for 80 sq.feet = 250+10(80)= $1050

Total charge by company B for 80 sq.feet = 90+12(90)=$1170

Let x be the no.of square feet for landscaping

Company A

Monthly consulting fee = $250

Cost of landscaping of 1 sq.feet = $10

Cost of landscaping of x sq.feet = $10x

So, Total charge by company A = 250+10x  ---1

Company B

Monthly consulting fee = $90

Cost of landscaping of 1 sq.feet = $12

Cost of landscaping of x sq.feet = $12x

So, Total charge by company B = 90+12x   ---2

Now we are supposed to find  how many square feet of landscaping will the two companies charge the same amount

So, Equate 1 and 2

250+10x = 90+12x

160=2x

80=x

So, the two companies charge the same amount for 80 sq.feet

Total charge by company A for 80 sq.feet = 250+10(80)= $1050

Total charge by company B for 80 sq.feet = 90+12(90)=$1170

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Answer:

70 m / 40 seconds = 7/4 m/s or 1.75 m/s

Step-by-step explanation:

the line stops at 0.7 time = 40 seconds

70 m / 40 seconds = 7/4 m/s or 1.75 m/s

We're given:

[tex](3f-4g)(t)[/tex] is the same as [tex]3f(t)-4g(t)[/tex]. Now, we can just plug in the functions as if they're variables in an equation.

[tex]3f(t)-4g(t)[/tex]

[tex]= 3(4t-2)-4(2t+2)\\= 12t-6-8t-8\\= 4t-14[/tex]

[tex](3f-4g)(t)= 4t-14[/tex]

The answer would be D. 4

because you would multiply the numerator and denominator by the conjugate.

Answer -2|3d| = 4

Step-by-step explanation:

no solution

"The spaces are usually stocked with standard office [26] equipment,

such as photocopiers, printers, and fax machines." Option A: No Change, i.e., no sentence correction is needed.

Sentence correction or sentence improvement is a type of grammatical practice where a sentence is given with a word or a phrase that requires grammatical changes or improvement.

Now,

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A . 3 pounds of potatoes

B . 2 pounds of potatoes

A . Janice will purchase potatoes until the value of potatoes is less than the cost of potatoes. Janice has $5.00 to spend on potatoes and the cost of potatoes is $1.00.

By assuming that the First pounce of potatoes is worth $1.50. which is greater than $1.00. If the second pound is worth $1.14, then Janice will purchase these as well, since the value is more than $1.00. If the remaining pounds are worth $0.30 then Janice will not purchase these because the value is less than the cost.

Thus Janice will purchase 3 pounds of potatoes for the Total cost of $3.00

B. Now assume Janica has only $2.00 to spend on potatoes. She will purchase the first pound which is $1.50 and the second pound which is $1.14. She now spends her entire amount of money on potatoes. If she want to purchase she could not do that.

Thus Janice will purchase 2 pounds of potatoes at a total cost of $2.00

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The complete question is:

Potatoes cost Janice $1 per pound, and she has $5.00 that she could possibly spend on potatoes or other items. If she feels that the first pound of potatoes is worth $1.50, the second pound is worth $1.14, the third pound is worth $1.05, and all subsequent pounds are worth $0.30 per pound, how many pounds of potatoes will she purchase? How many pounds will she purchase if she has only $2 to spend?

The following weights are listed below:

The sum of the weights of a red circle, a yellow rhombus and a green trapezoid is equal to 35 units.

In this question we find a case of abstract thinking, in which we find a weight system at equilibrium. There are the following variables below:

x - Weight of a red circle.

y - Weight of a purple cross.

r - Weight of an orange star.

u - Weight of a dark blue square.

v - Weight of a yellow rhombus.

w - Weight of a green trapezoid.

z - Weight of a light blue triangle.

And the resulting system of linear equations is:

x + y = 24                                 (1)

y + v = 12                                 (2)

u = 6                                        (3)

2 · r = 6                                    (4)

1.5 · v + 2 · u = 24                    (5)

0.5 · v + w + r + 2 · z = 24       (6)

u = z + 1                                    (7)

By (3):

u = 6

By (4):

r = 3

By (7):

z = 5

And the reduced system of linear equations is:

x + y = 24                                   (1)

y + v = 12                                   (2)

1.5 · v = 12                                  (5)

0.5 · v + w = 11                           (6)

By (5):

v = 8

By (6):

w = 11 - 0.5 · v

w = 11 - 4

w = 7

By (2):

y = 12 - v

y = 12 - 8

y = 4

By (1):

x = 24 - y

x = 24 - 4

x = 20

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The value of x is -1 and the values on both sides are the same, hence the equation has infinite number of solution

Linear equations are equation that has a leading degree os 1. Given the equations below:

-x +4 = x + 6

Collect the like terms

-x - x = 6 - 4

-2x =2

Divide both sides by -2

-2x/-2 = 2/2

x = -1

For the expression

5n + 7 =. 7(n+1) - 2n

5n + 7 = 7n + 7 - 2n

simplify

5n - 5n = 7 - 7

0n = 0

Since the values on both sides are the same, hence the equation has infinite number of solution

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The hourly rate will be $21.6

Taxes are money charged from the good bought or sold. Given the following parameters

Amount received = $826.60

Tax paid = $91.40

Balance = 826 - $91.40

Balance = $734.6

This shows that the man collected $734.6 for a 34 hours work. The hourly rate will be;

Hourly rate= $734.6/34

Hourly rate= $21.6

Hence the hourly rate will be $21.6

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Each participant selects 'a' with a probability of (1/2)^a;

the lowest particular wonderful integer (LUPI) recreation is a recreation that, relying on who you ask and while 12 months you ask it, has either been pretty thoroughly studied or no longer studied in any respect. There seem to be a few wonderful solutions; for instance, one symmetric mixed method is as follows if all integers are approved:

What is probability explain?

probability is a measure of the chance of an event to arise. Many activities can't be expected with total fact. we will predict handiest the chance of an event to occur i.e. how possibly they are to happen, using it

probability is the department of mathematics regarding numerical descriptions of ways probably an event is to occur, or how in all likelihood it is that a proposition is genuine. The opportunity of an occasion is various among zero and 1, where, more or less speakme, zero indicates impossibility of the event and 1 suggests truth

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The total Commission Buehrer earns is 1404.3.

Given, Commission on first 3000 sales is 5% and commission on next 6000 sales is 8% and the commission she get when done a sales over 12000 is 10%.

She did a total sales of 19743.

Total Commission = (5% of 3000 )+ (8% of 6000)+(10% of (total sale - 12000))

Total commission = (150)+(480)+(10% of (19743-12000))

Total commission = (150)+(480)+(10% of (7743))

Total commission = (150)+(480)+(774.3)

Total commission =1404.3

Hence Total commission she earns for the sales in the month is 1404.3.

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Answer:

10 1/2

Step-by-step explanation:

The side of the smaller triangle has a length of 7, the larger triangle will be:

= (7 × 3)/2

= 10 1/2

Answer:

TU = 27

Step-by-step explanation:

ST + TU = SU

(8x - 11) + (14x - 15) = 19x - 17

8x - 11 + 14x - 15 = 19x - 17

22x - 26 = 19x - 17

22x - 19x = 26 - 17

3x = 9

x = 3

TU = 14x - 15 = 14(3) - 15 = 27

Percentage decrease = Difference/Original price*100

[tex] = \frac{18 - 12}{18} \times 100 = \frac{600}{18} = 33.33\%[/tex]

Hope this helps :)

A) The rearranged formula is:

r = d/t

B) Using the above formula we can see that the rate is 25,000 m/h.

C) Here we have the linear equation:

d = (25,000 m/h)*t

Here we need to use the formula:

distance = rate*time.

To solve this formula for the rate, we need to divide both sides by the time, so we will get:

rate = distance/time.

Writing this with the given variables:

r = d/t.

b) Now we know that the distance is 800,000 meters and the time is 4 hours, then the rate will be:

r = 100,000m/4h = 25,000 m/h

The rate is 25,000 meters per hour.

c) Now we wil get the linear equation:

d = r*t

d = (25,000 m/h)*t

This linear equation gives the distance traveled in a time t.

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Part A:

Rearrange the distance formula, d = rt, to solve for rate. The distance formula is given by d = rt, where d is the distance traveled, r is the rate at which the distance is being traveled, and t is the time taken to travel the distance.
To solve for rate, we can rearrange the formula as follows: d = rt d/t = r [dividing both sides by t] r = d/t

Therefore, the formula for rate is r = d/t.

Part B: Find the falcon's rate in meters per hour. Given that the falcon flies 800,000 meters in 4 hours, we can use the formula for rate to find its speed. r = d/t r = 800,000/4 r = 200,000 meters per hour.

Therefore, the falcon's rate is 200,000 meters per hour.

Part C: Rearrange the distance formula, d = rt, to solve for time. To solve for time, we can rearrange the formula as follows: d = rt t = d/r [dividing both sides by r]

Therefore, the formula for time is t = d/r.

Using the bisection concept, we have that the measure of angle AXB is of 160º.

A bisection of an angle is the formation of a ray that divides the angle into two equal parts.

For this problem, we have that:

Hence the measure of angle AXB is of 160º.

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Answer:

270 9764

359

548

69

80

554

331

594

850

667

216

8674

213

253

5

3

64

7

45

692

213

649

8574

6646

549

837

849

From the given graph, the slope of the given line is [tex]m=\frac{-4}{3}[/tex]

Given,

The points

[tex](x_{1},y_{1})=(-2,3)[/tex]

[tex](x_{2},y_{2})=(1,-1)[/tex]

The slope of the line m= [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

Substitute the values in the equation

[tex]m=\frac{(-1)-(3)}{1-(-2)} \\m=\frac{-1-3}{1+2}\\ m=\frac{-4}{3}[/tex]

Hence, the slope of the given line is [tex]m=\frac{-4}{3}[/tex]

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