Today, the price of a new cell phone is $129. In 2000, the price of a similar cell phone was $240. What is the percent of change in the price of a cell phone from 2000 to today? Since it wen from $240 in the year 2000 to $129 today, this would indicate a percent decrease. Round to the nearest percent.

Answer:

X

Step-by-step explanation:

The greatest common factor is x because x^2 doesn't have a 5 or a negative, and 5x only has one x. X is the only shared factor.

According to the given information, the equation represents a line that is tangent to the circle and goes through the point W is given by:

y = -x + 6.

The equation of a circle of center [tex](x_0,y_0)[/tex] and radius r is given by:

[tex](x - x_0)^2 + (y - y_0)^2 = r^2[/tex]

In this problem, we have that the center is at point (0,2), hence:

[tex]x^2 + (y - 2)^2 = r^2[/tex]

It goes through point (3,3), hence:

[tex]3^2 + (3 - 2)^2 = r^2[/tex]

[tex]r^2 = 10[/tex]

Hence, the equation is:

[tex]x^2 + (y - 2)^2 = 10[/tex]

It is given by:

[tex]y - y(0) = \frac{dy}{dx}|_{W}(x - x(0))[/tex]

Applying implicit differentiation, we have that:

[tex]2x + 2y\frac{dy}{dy} = 0[/tex]

[tex]\frac{dy}{dx} = -\frac{x}{y}[/tex]

Point W(3,3), hence:

[tex](x_0, y_0) = (3,3)[/tex]

[tex]\frac{dy}{dx} = -\frac{3}{3} = -1[/tex]

Hence the equation is:

y - 3 = -(x - 3).

y = -x + 6.

More can be learned about the equation of a tangent line at https://brainly.com/question/8174665

Answer:

441

Step-by-step explanation:

63 multiplied by 7 gives us 41

Answer:

40N

Step-by-step explanation:

F=ma

1st case:  72N = m(9m/s^2)

m = 72N/(9m/s^2)

2nd case:  F = m(5m/s^2)

m = F/(5m/s^2)

Since the mass is the same:

72N/(9m/s^2) = F/(5m/s^2)

F = 72N/(9m/s^2)/(5m/s^2)

F = (5/9)(72N)

F = 40N

Answer:

number of boys = 320

number of girls = 240

Step-by-step explanation:

Total students in school = 560

Ratio of boys to girls = 4 : 3

Add the ratios together:  4 + 3 = 7

Divide the total by this number:  560 ÷ 7 = 80

Now multiply the original ratio numbers by 80 to find the numbers of boys and girls:

⇒ number of boys = 4 x 80 = 320

⇒ number of girls = 3 x 80 = 240

Total students are 560.

[tex]\\ \rm\hookrightarrow 4x+3x=560[/tex]

[tex]\\ \rm\hookrightarrow 7x=560[/tex]

[tex]\\ \rm\hookrightarrow x=80[/tex]

The missing values of a and b in the table of Miguel, wrote the predicted and residual values is 1.16 and 0.12 respectively.

Table is a way to represent the data of the two or more variable.To read the data from the table look for the value of one variable, and get the resultant value of other variable from the corresponding block.

Miguel wrote the predicted and residual values for a data set using the line of best fit with the following equation,

[tex]y = 1. 82x - 4. 3[/tex].

The image of the table for the data of Miguel is attached below. In this table he left out two of the values a and b

The table keeps the data,

The residue value is the difference of the value given and the value predicted.

The value of a is in the third column. Here, the given value is 1.1 and predicted value is -0.06. Thus, the residue value is,

[tex]a=1.1-(-0.06)\\a=1.16[/tex]

The value of b is in the third column. Here, the given value is 3.1 and the predicted value is 2.98. Thus, the residue value is,

[tex]b=3.1-2.98\\b=0.12[/tex]

Hence, the missing values of a and b in the table of Miguel, wrote the predicted and residual values is 1.16 and 0.12 respectively.

Learn more about the data table here;

https://brainly.com/question/15602982

Answer:

D) T

Step-by-step explanation:

A table that does not represent has two or more of the same x-values that map to different y-values (i.e. (3,4), (3,5), (3,6)).  

Thus, given the information above, we can conclude that option D is the correct answer because Table T has (3,4), (3,-4) and (4,5), (4,-5), which are coordinates with same x-values but different y-values.

Answer:

0.25

Step-by-step explanation:

(0.5) * (0.5) = 0.25

50% of 50% is 25% converted to decimal is 0.25.

Answer:

0.25

Step-by-step explanation:

Hi Squaring a number simply means multiplying the number by itself by once.

[tex]0.5^{2} =0.5 * 0.5\\= 0.25[/tex]

Thus the value of z = 0.25

There you go,

Mark me as brainliest pls

Dan here.

Answer:

mas pra vc mandar

[tex]7385[/tex]

The requried number of cups of walnut still need for the recipe is 5/12 cups.

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,

Here,
A recipe calls for 2/3 cup of chopped walnuts. You chop 4 walnuts and get 1/4 of the amount you need, how much more of a cup of chopped walnuts do you need is to be determined.

Cup os chopped walnut still need = 2 / 3 - 1 / 4 = 5 / 12

Thus, the requried number of cups of walnut still need for the recipe is 5/12 cups.

Learn more about arithmetic here:

https://brainly.com/question/11424589

#SPJ2

Step-by-step explanation:

we pay taxes of the income without the exemptions.

so, the tax-interresting amount is

38,900 - 4826 = $34,074

2% of the first $1000 = $20

$34,074 - 1000 = $33,074

3% of the next $3000 = $90

$33,074 - 3000 = $30,074

3.5% of the next $3000 = $105

$30,074 - 3000 = $27,074

4% of $27,074 = $1,082.96

so, in total he pays state taxes over a year

20+90+105+1082.96 = $1,297.96

now, he gets paid semimonthly, that means twice a month.

his salary but also his deductions (incl. tax deductions) are all split across these 24 paychecks per year.

so, each state income tax deduction is then

$1,297.96 / 24 = $54.08 on every paycheck.

[tex][Hello,BrainlyUser][/tex]

Answer:

9/10

Step-by-step explanation:

7/10 + 2/10 When add we need to have same denominator. Thus, this question have same denominator so we don't have to worry about that.

Now we have to add the numerator.

If you don't know what are numerator and denominator then let me tell you.

Numerator is the Top Number on the fraction

Denominator is the Bottom Number on the fraction.

In this question, Numerator = 2 ,Denominator = 10 and Numerator = 7 and Denominator = 10 .

Now Adding the numerator:

2 + 7 = 9

We don't add the denominator [ Stay the same]

9/10 is the Answer.

9/10 is already in simplest form.

[CloudBreeze]

Answer:

2 (3+1)

Step-by-step explanation:

The 2 is distributed to both the 3 and 1, making the expression equivalent to 6+2. Don't know if this was what was being asked, so it may or may not be right.

Answer:

It could be these

Step-by-step explanation:

• means times/multiplied, number right by parenthesis means multiply that by the answer of what is in the parenthesis

(6+8) • 4

4(6+8)

4 + (6•8)

Answer:

Three solutions were found :

x = 3/2 = 1.500

x = 2

x = -1

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

80 + 40 = 120

120 represents the total students for all 4 classes. And since there is an even amount in each class...

120 / 4 = 30

So 30 would be your answer.

Answer:

-11

Step-by-step explanation:

See the picture for your understanding.

Since a and b are oppoiste angles of 80° and 60° respectively

a = 80°

b = 60°

Since sum of three angles in a triangle is 180°

x + 51 + 60° + 80° = 180°

x = -11

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

o because it has a higher percentage out of them all

Answer:

12.57 units

Step-by-step explanation:

i put the explanation in the picture because i didnt know how to put it in here

The length of arc EG is 12.56 units.

The arc length of a circle is the distance between two points on the curve of the circle.

We have,

Arc length = (angle/360) x (2πr)

Now,

From the circle,

EF = r = 15 units

m∠EFG = angle = 48

Substituting.

Arc length

= (angle/360) x (2πr)

= 48/360 x 2π x 15

= 12.56

Thus,

The length of arc EG is 12.56 units.

Learn more about arc lengths here:

https://brainly.com/question/16403495

#SPJ2

Answer:

9 fruit slushies; 6 cones

Step-by-step explanation:

Let f = number of fruit slushies.

Let c = number of cones.

c + f = 15

c + 0.75f = 12.75

0.25f = 2.25

f = 9

c + f = 15

c = 6

Answer: 9 fruit slushies; 6 cones

Answer:

It is less than a km

Step-by-step explanation:

A km is 1,000 meters, while a meter is 100cm, meaning that a km is 100,000 cm, making 52.800cm less than a km

Answer

Find out the  m∠p .

To prove

As in ΔDAB is a right triangle

Apply pythagorean theorem

Hypotenuse ² = Perpendicular ² + Base²

DB² = AB² + AD²

AB = 5 units

AD = 6 units

Put in the above formula

DB² = 5² + 6²

     = 25 + 36

    = 61

          = 7.8 units (approx)

Now in  ΔDCB is a right triangle .

By using the trignometric identity .

As DC = 4 units

DB = 7.8 units  (approx)

Put all the values in the trignometric identity .

∠p = 59.15 ° (approx)

Answer:

60%

Step-by-step explanation:

The total area is 136ft^2

We know this because the length of Hal's Backyard is 8+9 ft. This is a total of 17 ft in length. The width is 5+3 ft. This is a total of 8ft. Multiplying the length by the width gets us: 17ft*8ft = 136ft^2.

Now we need to find the ft^2 taken up by the padio, walkway, and garden. - We can see the image the patio is 5ft by 8ft. This is a total of 40ft^2.

- We can see the image of the garden is 3ft by 6ft. This is a total of 18ft^2

- We can see the image of the walkway is 3ft by 8ft. This is a total of 24ft^2

This adds up to a total of 82ft^2: 40ft^2+18ft^2+24ft^2 = 82ft^2

Now, to find the percentage, we divide the area of the patio, walkway, and garden by the total area:

[tex]\frac{82ft^2}{136ft^2}[/tex]

 =

60%

So Hal's patio, walkway, and garden make up 60% of the total area of his backyard.

Hope this helps! :3

The program is an illustration of loops

Loops are program statements that are used to perform repetition

The program written in Python, where comments are used to explain each line is as follows:

#This initializes sum to 0

summ = 0

#This gets input for the first number

num = int(input())

#This is repeated while num is not -1

while num!= -1:

   #This calculates the sum

   summ+=num

   #This gets input for the num

   num = int(input())

#This prints the sum

print(summ)

Read more about loops at:

https://brainly.com/question/16397886