Factor each expression: 28 - 7x

Answer:

Any number that can be written as a fraction with integers is called a rational number . For example, 17 and −34 are rational numbers. (Note that there is more than one way to write the same rational number as a ratio of integers. For example, 17 and 214 represent the same rational number.)

Answer:

29$

Step-by-step explanation:

191-17=174

174/6=29

Answer:

$29

Step-by-step explanation:

Answer:

g(x) = x+3.

Step-by-step explanation:

i hope this helps :D

When a function is shrunk vertically, the function has undergone a form of transformation.

The resulting function when [tex]f(x) = 2x + 6[/tex] vertically shrink by 1/2 is [tex]f'(x) = x + 3[/tex]

Given that:

[tex]f(x) = 2x + 6[/tex]

[tex]k = \frac 12[/tex] --- shrink factor

When a function is shrunk vertically, the rule of transformation is:

[tex](x,y) \to (x,ky)[/tex]

So, we have:

[tex]f'(x) = k f(x)[/tex]

The new function becomes

[tex]f'(x) = \frac 12 \times (2x + 6)[/tex]

[tex]f'(x) = x + 3[/tex]

Hence, when [tex]f(x) = 2x + 6[/tex] is vertically shrunk by 1/2, the new function is [tex]f'(x) = x + 3[/tex]

Read more about transformations at:

https://brainly.com/question/11709244

History of algebra

Algebra can essentially be considered as doing computations similar to those of arithmetic but with non-numerical mathematical objects. However, until the 19th century, algebra consisted essentially of the theory of equations. For example, the fundamental theorem of algebra belongs to the theory of equations and is not, nowadays, considered as belonging to algebra (in fact, every proof must use the completeness of the real numbers, which is not an algebraic property).

This article describes the history of the theory of equations, called here "algebra", from the origins to the emergence of algebra as a separate area of mathematics.

Answer:

Rearrange: y=-2x+3

if x=6 then y = -9

if y=-1 then x = 2

Step-by-step explanation:

Algebra

to rearrange here are the steps

26x+13y=39

First move x to other side by subtraction

13y= -26x+39

to get y as just y divide everything by 13. Since 13/13=1 or 13y/13= y

y=-2x+3

Answer:

H. 0.6

Step-by-step explanation:

Answer:

5t-4n+2

Step-by-step explanation:

n-5n=-4n

5t-4n+2

Given:

The point is B(2,5) and its image is B'(1,2.5).

To find:

The scale factor.

Solution:

If a figure is dilated by the scale factor k and (0,0) is the center of then the scale factor is defined as

[tex]k=\dfrac{\text{x-coordinate of the point on image}}{\text{x-coordinate of the corresponding point on the original figure}}[/tex]

x-coordinate of point B' is 1 and the x-coordinate of point B is 2. So, the scale factor is

[tex]k=\dfrac{1}{2}[/tex]

Therefore, the scale factor is  [tex]\dfrac{1}{2}[/tex] and the correct option is D.

Answer:

-3/7

Step-by-step explanation:

Slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\[/tex]

        [tex]=\frac{8-11}{10-3}\\\\=\frac{-3}{7}\\[/tex]

Answer:

Option B

Step-by-step explanation:

Option A, C and D have x- values that repeat and you cannot have that.

Y values can repeat but not x-values.

Option B has all x values with different y-values

Answer:

B.

Step-by-step explanation:

an output can have more than one input but an input can only have one output

basically only one arrow can go from the input to the output and b is the only one who's graph thing is like that

hope this helps <3

Answer:

Y=X

Step-by-step explanation:

It depends on the context. No number besides 0 is given, so it can't really be the other ones with numbers.

Answer:

The scale factor is 2.5

Step-by-step explanation:

took k-12 test

When a shape is dilated, the size of the shape changes

The true statement is (d) The scale factor is 2.5.

Dilation involves changing the size of a shape or figure

In figure A, we have:

Length = 0.6

In figure B, we have:

Length =1.5

The scale factor is then calculated as:

[tex]k = \frac{1.5}{0.6}[/tex]

Divide

[tex]k = 2.5[/tex]

Hence, the true statement is (d) The scale factor is 2.5.

Read more about dilation at:

https://brainly.com/question/3457976

Answer:

so first do the top one so that would be 7*2 which is 14

and then the bottom which is 5*12 so that would be 60.

60+14 is 74!! 74sq in!

Step-by-step explanation:

Answer:

it may be A log x ........

Answer:

5/14 is the probablity

byeeeeeeeeeeee

Answer:

I do

Step-by-step explanation

I like the manga

Answer:

mmeeee ‍♀️

Step-by-step explanation:

omg thats a rlly good drawing too

Answer:

12 to 15 ratio of girls to boys

Answer:

That would be 3.0

Step-by-step explanation:

Hope this helps!

Have a nice day :)

Answer:

3.3333...

Step-by-step explanation:

Hope this helps :)

Answer:

x=-4     y=-7

Step-by-step explanation:

-4x+y=9     get y alone

add 4x both sides

y=4x+9

insert into y=2x+1

2x+1=4x+9

subtract 1 both sides

2x=4x+8

subtract 4x both sides

-2x=8

divide by -2

x=-4

y=2x+1

y=2(-4)+1

y=-8+1

y=-7

check

-4(-4)+(-7)=9

-16+(-7)=9

9=9

x=-4

y=-7

gl

Answer:

1500

Step-by-step explanation:

Total cost would be 60%+40%

Since we have 60% amount already

0.60* total cost=900

total cost=90000/60

=1500

Answer:

z ≥ −15

Step-by-step explanation:

5z ≥ −75

Divide each side by 5

5z/5 ≥ −75/5

z ≥ −15

Answer:

The answer to this question is A

The new coordinates will be C( 3 ,0),  D( 7,1) , E(2,4) , Option A is the correct answer.

When a object or a figure is reflected , it means an mirror image if the object is being created , the shape and size of the object remains same , Only the coordinates change on the basis of the axis used for Reflection.

The figure is given in the question.

The coordinates of the figure is

C( -3 ,0)

D( -7,1)

E(-2,4)

When reflection is done along any axis , the coordinates of the other axis change sign.

so in this case ( x,y ) -----> ( -x,y)

The new coordinates will be

C( 3 ,0)

D( 7,1)

E(2,4)

Therefore Option A is the correct answer.

To know more about Reflection

https://brainly.com/question/15487308

#SPJ2

Answer: -1/8 OR -0.125, -2^-3

Step-by-step explanation:

Answer:

b because I am close to being done it's completely correct

Answer:

32 times as many bacteria after 5 days