Determine whether the dilation from Figure ABC to Figure A'B'C' is a reduction or enlargement Then find its scale factor. ​

Answer:

20.8 cm

Step-by-step explanation:

Perimeter of square = 4a

Dimension of the thumb print = 1 cm by 1cm

Perimeter of the size of the square (thumb print) = 4 × 1

= 4 cm

We are told in the question that:

The cellphone unlocks when the perimeter reaches 32 centimeters, taking a total of 2.5 seconds.

Hence,

32cm - 4cm = 28cm

What is the perimeter of the square after 1.5 seconds?

We set up a proportion

Time / perimeter

= 1.5/x = 2.5/ 28

Cross Multiply

= 2.5x = 1.5 × 28

x = 1.5 × 28/2.5

x = 16.8.

Therefore, the perimeter of the square after 1.5 seconds

= 16.8cm + perimeter of the square before expansion.

=16.8 cm + 4 cm

= 20.8 cm

Answer:

C:  20.8 centimeters

Step-by-step explanation:

Answer:

Few things are missing, they are volume of the box is 180 feet cube. Length is 9 feet greater than its height, and weight is 4 feet less than its height.

Step-by-step explanation:

Given, the volume of the box, V = 180 feet cube

Let the height of the box, h = x feet

Therefore, length is, l = ( 9+x ) feet

And width is, b = ( x-4) feet

so volume of the box is

V = l x b x h

[tex]$ 180= (x+9) \times (x-4) \times (x)$[/tex]

[tex]$ x^3 +5x^2-36x -180 =0$[/tex]

Factorizing we get

(x+5)(x-6)(x+6)=0

Therefore,

x = -5, -6, 6

Now since the height of the box cannot be negative, so taking the positive value of x, we get

Height of the box, h = x = 6 feet

Length , l = ( 9+x ) = 9+6 = 15 feet

Width , b = ( x-4) = 6-4 = 2 feet

Answer:

p=7

Step-by-step explanation:

2 (5p-4)=3p-7

(10p-8)=3p-7

10p=3p+1

7p=1

p=7

Answer:

  mantissa

Step-by-step explanation:

The word "mantissa" is used to describe the portion of the number that represents the significant digits in scientific notation.

__

The term also refers to the fractional portion of a logarithm. Of course, that fractional portion also represents the significant digits of the number. The integer portion of the logarithm is the power of 10 that multiplies the significant digits.

Answer:

-2.83~

Step-by-step explanation:

google :)

Answer:

15%

Step-by-step explanation:

Since a percent is out of 100 we can make 75/500 to have the denominator of 100.

To do that you divide

500/5 = 100

and for the numerator

75/5 = 15

whatever you do to one side you must do to the other that's why I divided both sides by 5. The ending fraction would be 15/100 which is the same as 15%

Hope that helps and have a great day!

Answer:

The correct options are;

B. AC and AD have the same length

D. Triangle BCE is isosceles

Step-by-step explanation:

From the diagram we have;

B. Segment AC and segment CD are the radii of the same circle with center C and radius AC, therefore, given that the radius of a circle is constant round a circle, we have;

The length of AC = The length of AD

D. In triangle BCE, we have the length of segment CB is equal to the length of segment CE which are both radii of the circle with center C and radius CE, therefore, the triangle BCE has two sides equal which gives triangle BCE is an isosceles, from the definition of isosceles.

when you divide 6/13 by 6/12 you should be getting 12/13

step by step :

take the reciprocal ( flipping the numerator and denominator ) of the second fraction and changing the division sign to multiplication :

6/13 × 12/6

the next step is to multiply the numerator and denominator

6 × 12 / 13 × 6 = 72/78

the fraction can be reduced by dividing numerator and denominator by greatest common factor of 72 and 78

here the greatest common factor will be 6

72 ÷ 6 / 78 ÷ 6

you should get 12 / 13 as an answer

so that's it :)

hope this helped !

Answer:

D

Step-by-step explanation:

The solution to a system of equations is where the two equations intersect on a graph.

So, the solution to the system of polynomials graphed below would be where they intersect.

We can see that they intersect at (2,20)

Therefore, their solution is (2,20)

Our answer is D

Answer:

A

Step-by-step explanation:

Do 5-3=2 and then you have your answer if I got it wrong sorry

Answer: A

Step-by-step explanation:

solve the equation

5+3 =8

plug in each problem.

8-2= 6

Answer:

Xmin = –π  Xmax = 3π

Step-by-step explanation:

Domain window settings Xmin = 0 & Xmax = 720° would be appropriate if you want to graph the function for exactly two periods.

The distance between the repetition of any function is called the period of the function.

For example, for the cosine function, the distance between the repetition of the function is [tex]2\pi[/tex]. So the period of the cosine function is [tex]2\pi[/tex].

If you want to graph the function for exactly two periods the difference between the first and last element of the domain should be two times the period of the function.

i.e. If the domain is [a, b] the value of [tex]b-a = 4\pi[/tex].

Option(1) b-a =720° [tex]=4\pi[/tex]

Option(2) b-a =[tex]2\pi[/tex] [tex]\neq 4\pi[/tex]

Option(3) b-a =360 [tex]\neq 4\pi[/tex]

Option(4) b-a =[tex]3\pi[/tex][tex]\neq 4\pi[/tex]

So, correct option is option(1) i.e. Xmin = 0 & Xmax = 720°

Hence, domain window settings Xmin = 0 & Xmax = 720° would be appropriate if you want to graph the function for exactly two periods.

To get more about the period of a function visit:

https://brainly.com/question/3511040

Answer:

9>a

Step-by-step explanation:

The greater than symbol is >

The less than symbol is <

It can be helpful to imagine the signs as little crocodile mouths. They will turn their heads to the biggest catch, or in this case, the greater number. So the open end of the sign will be towards the greater number.

Answer:

9>a

Step-by-step explanation:

the side with the bigger opening means that side of the inequality has a greater value  so since 9 is greater than a the bigger opening will go to 9.

Answer:

d = r * t

r = 50 mph

this will be very easy.

d = r * t

r = 50 mph

t = 5 hours

d = 250 miles

In five hours at a constant speed of 50 miles per hour, you would have traveled 250 miles.t = 5 hours

d = 250 miles

In five hours at a constant speed of 50 miles per hour, you would have traveled 250 miles.

Answer:

250

Step-by-step explanation:

Answer:

150 vouchers to wash trucks were sold

250 vouchers to wash compact cars were sold

Step-by-step explanation:

Here, we are interested in calculating the number of each type of vouchers sold.

Let the number of vouchers to wash trucks be x while the number of vouchers to wash compact trucks be y.

Firstly, we know that both sums up to be 400.

Mathematically;

x + y = 400 •••••••••(i)

Secondly,

since a voucher to wash trucks sell $4, and we sold a total of x, the amount generated from selling is 4 * x = $4x

Same way for the vouchers to wash compact cars, we have a total of $3 * y = $3y

The sum of both gives $1350, which is the total sales.

Mathematically;

4x + 3y = 1350 ••••••(ii)

So we have two equations to solve simultaneously;

x + y = 400

4x + 3y = 1350

Multiply equation i by 4 , we have;

4x + 4y = 1600

4x + 3y = 1350

Subtract equation ii from i, we have 4y-3y = 1600-1350

y = 250

From equation 1, we know that

x + y = 400

This means that;

x = 400 -y

x = 400 -250

x = 150

Answer:

The correct answer is D. 2

Step-by-step explanation:

i think answer is D.2

Answer:

(4, 5 )

Step-by-step explanation:

Under a rotation about the origin of 180°

a point (x, y ) → (- x, - y ), thus

B(- 4, - 5 ) → (4, 5 )

Answer:

58

Step-by-step explanation:

Use a number line.

-4 + 4 = 0.

So, you already have 4 Fahrenheit.

Then, add the distance of 54 from 0 to 54.

4 + 54 = 58.

That is your answer, here to help!

Answer:

sorry dont know the answer im new to this website

Step-by-step explanation:

Answer:

1.x=11

2.x=+5=+2.2362

3.x=+3.750=+1.93649

Answer:

area = 2x² - 17x - 21

Step-by-step explanation:

Area of the rectangle is:

area = (width*length)

area = (x+7)*(2x-3)

        = x*2x + x*-3 + 7*2x + 7*-3

        = 2x² - 3x - 14x - 21

        = 2x² - 17x - 21

The area of the rectangle in terms of x should be [tex]2x^2 + 11x - 21[/tex]

Given that,

We need to determine the area of the rectangle

As we know that

The area of the rectangle be

[tex]= length \times breadth\\\\= (2x - 3) (x + 7)\\\\= 2x^2 +14x - 3x - 21\\\\= 2x^2 + 11x - 21[/tex]

Therefore we can conclude that The area of the rectangle in terms of x should be [tex]2x^2 + 11x - 21[/tex]

Learn more about the rectangle here: brainly.com/question/16939594

Answer:

3d(5-4cd)

Step-by-step explanation:

15d - 12cd²  (we see that the highest common factor of 15 and 12 is 3, hence we can factor 3 out)

= 3 (5d - 4cd²)      (we also notice that d appears in both terms in the parantheses. hence we can also factor d out)

= 3d(5-4cd)

Answer:

1: 2 and $3.072

Step-by-step explanation:

According to the question, the data provided is as follows

10 half gallons

For this she paid $15.36

Based on the above information,

The ratio in fractional form is

= 1 ÷ 2

= 1 : 2

And, the cost of gasoline per gallon is

Since  half of 10 gallons is 5

And, the amount paid is $15.36

So, the cost of gasoline per gallon is

= $15.36 ÷ 5

= $3.072

Step-by-step explanation:

what is your name what is 1000 divided by 1000

Step-by-step explanation:

you can see the steps above

Step-by-step explanation:

Hey there!!!

see explanation in picture.

Hope it helps...

Answer:

12 = x

Step-by-step explanation:

Symmetry here would involve subtracting the same quantity from both sides of the equation.

Starting with 2x + 5 = 3x -7,

subtract 2x from both sides.  This yields

                            5        = x - 7

Adding 7 to both sides yields

                   12 = x

Answer:

y=38.75x

Step-by-step explanation:

Divide 310 by 8 which will give 38.75 and put it into linear relationship.