7th grade scale factors coloring sheet anwser key

Answer:

1. -29/156 2. 38/45 3. 29/45 4. 113/24 or about 4.7 5. 457/1,  914/2,  1371/3

Step-by-step explanation:

3/13 - 5/12 can be simplified to 36/156 - 65/156. Subtract this and you get -29/156  

4/9 + 2/5 can be simplified to 20/45 + 18/45. Add this and you get

38/45

5/8 - 2/9  can be simplified to 45/72 - 16/72. Subtract this and you get

29/45

3 1/2 + 2 5/12 can be first made irrational to 7/2 + 29/24. This can be simplified to 84/24 + 29/24

113/24 or about 4.7

Not sure about the 457, but to convert it, you multiply it by whatever denominator you have. For example

1x457 = 457/1

2x457 = 914/2

And finally 3x457 = 1371/3

9514 1404 393

Answer:

  n(B) = 4

Step-by-step explanation:

There are four (4) elements in set B.

  n(B) = 4

9514 1404 393

Answer:

  (b)  domain: all reals; range: y ≤ 6

Step-by-step explanation:

The domain of any polynomial function is always "all real numbers." There are no values of the variable for which a polynomial is undefined.

The range of a polynomial will depend on its degree and the sign of the leading coefficient. Here, the degree is even, so the range has a limit. The leading coefficient is negative, so that limit is a maximum.

Only one answer choice has these characteristics:

  domain: all real numbers; range: y ≤ 6

__

The graph confirms this choice of range.

Answer:

100 inch

Step-by-step explanation:

1 cm=0.394 inch

254 cm×0.394=100 inch

1in = 2.54cm

So you would divide 254cm by 2.54cm to see how many inches it would be equal to, and since 2.54 goes int 254 a hundred time 254cm equals 100in

The measure of side BC is 30 units.

Given:

Points A, B, and C are collinear and B lies between A and C.

[tex]AC=48[/tex]

[tex]AB=2x+2[/tex]

[tex]BC=3x+6[/tex]

To find:

The value of BC.

Solution:

Points A, B, and C are collinear and B lies between A and C. So,

[tex]AB+BC=AC[/tex]              [Segment addition postulate]

[tex](2x+2)+(3x+6)=48[/tex]

[tex]5x+8=48[/tex]

Subtract 8 from both sides.

[tex]5x=48-8[/tex]

[tex]5x=40[/tex]

Divide both sides by 5.

[tex]\dfrac{5x}{5}=\dfrac{40}{5}[/tex]

[tex]x=8[/tex]

Now,

[tex]BC=3(8)+6[/tex]

[tex]BC=24+6[/tex]

[tex]BC=30[/tex]

Therefore, the value of BC is 30.

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The possible coordinates for G are -11 and 5.

Given:

On a number line, suppose point E has a coordinate of [tex]-3[/tex], and [tex]EG=8[/tex].

To find:

The possible coordinates of point G.

Solution:

Either point G lies 8 units left of point E or 8 units right of point E.

[tex]G=-3-8[/tex]

[tex]G=-11[/tex]

And

[tex]G=-3+8[/tex]

[tex]G=5[/tex]

Therefore, the possible coordinates for G are -11 and 5.

Learn more:

https://brainly.com/question/13071707

Answer:

0.4583

Hope it helps you!!

Answer:

you would write it as -3.25 as a whole number

Answer:

Cuando rechazamos la hipótesis nula, esperaríamos que la razón de varianza, a largo plazo, sea: mayor al valor crítico.

Step-by-step explanation:

Answer:

Answer:

The least possible amount of saving they could each have is 36$

Step-by-step explanation:

12+12+12 = 36

9+9+9+9=36

Answer:

$399

Step-by-step explanation:

If he earns $14.25 an hour and works 28 hours, we can find out how much he's earned by multiplying the rate per hour by the number of hours,

14.25 × 28 =

399

He earned $399 last week.

Answer:

42 and 22 are the numbers

Step-by-step explanation:

Let the numbers be x and y

[tex]x + y = 64[/tex]

[tex]x - y = 20[/tex]

On adding both

[tex]x + y + x - y = 64 + 20[/tex]

[tex]2x = 84[/tex]

[tex]x = \dfrac{84}{2} [/tex]

[tex]x = 42[/tex]

Using 1

[tex]42 + y = 64[/tex]

[tex]y = 64 - 42[/tex]

[tex]y = 22[/tex]

Answer:

$21 the minimum Bob has to may will be the amount payed regardless of the number of passengers in the taxi

Answer:

5383 4983

i dont know

Step-by-step explanation:

Answer:

1000

Step-by-step explanation:

Answer:

-4

Step-by-step explanation:

solve expression using pemdas

(shown in image)

Answer:

1/16

Step-by-step explanation:

one half raised to the power of to eight = one sixteen

Answer:

X=4-9

Step-by-step explanation:

Answer:

{4,5,6,7,8,9}

Step-by-step explanation:

if we talk about math ,then x is a set which contains integers from 4 to 9.

(-3, 2)

Step-by-step explanation:

when the point is rotated through 90∘ about the origin in the counterclockwise direction then the point M(h,k) takes the image M′(−k,h)

so the point (2,3) will be (-3 ,2 )

Answer:

the fraction of 6/7 divided by 2 is 3/7

Answer:

600,000+80,000+700+5

The equivalent expression of the given value is 4.1 m/s in two significant figures

Your question is incomplete, i believe the following is the intended question.

[tex]\frac{450 \ m}{ 110 \ s}[/tex] equals which of the following values to the correct number of significant figures ?

The express the given value in the correct significant figures we will simplify it as follows:

450 m has 2 significant figures ( 4 and 5)

110 s has 2 significant figures (1 and 1)

Thus, the resultant ratio of the two numbers will be expressed in two significant figures.

[tex]\frac{450 \ m}{110 \ s} = 4.0909 \ m/s\\\\in \ two \ significant \ figures = 4.1 \ m/s[/tex]

Therefore, the equivalent expression of the given value is 4.1 m/s

Learn more here: https://brainly.com/question/23396760

Answer:

[tex]x^2-6x+9[/tex]

Step-by-step explanation:

Say you have a function [tex]f(x)=x+1[/tex]. If you wanted to find f(3), you would replace the number in the parentheses, in this case 3, with x, to get [tex]f(3)=3+1=4.[/tex] When combining functions, you should do the same thing.

Here, we have [tex]f(x)=x^2.[/tex] We want to find f(g(x)). So, you should replace x in the function f(x) with the function g(x). [tex]g(x)=x-3.[/tex] So, f(g(x)) would equal [tex](x-3)^2[/tex], which equals [tex]x^2-6x+9[/tex].

Hope this helps!

Answer:

13.752km/h

Step-by-step explanation:

Just convert them and devide them

3.82m/s, i can also write it as

3.82m

-----------

1s

Therefore just change the units to your liking

(3.82 ÷1000)km

-----------

( 1 ÷60÷60) hour

Answer:

10.152kmph

Step-by-step explanation:

3.82:1000/1:3600

Step-by-step explanation:

Set the equation

[tex](x - 4) {}^{2} [/tex]

swap y and x

[tex](y - 4) {}^{2} = x[/tex]

[tex]y - 4 = {x}^{2} [/tex]

[tex]y = {x}^{2} + 4[/tex]

So the inverse is

[tex] {x}^{2} + 4[/tex]

The domain is [4, infinity)

The range is [0,infinity)

The domain of the inverse is [0, infinity)

The range is [4, infinity)

Answer:

see below

Step-by-step explanation:

We can use the distance formula

11. d =sqrt( (y2-y1)^2 + (x2-x1) ^2)

  = sqrt( (-3 --5)^2+(-6 - -1)^2)

  = sqrt( (-3+5)^2 + (-6+1)^2)

  = sqrt( 2^2 + (-5)^2)

  = sqrt (4+25)

  = sqrt(29)

12. Using the points ( 1,3) and (4,-1)

d =sqrt( (y2-y1)^2 + (x2-x1) ^2)

  = sqrt( (-1-3)^2+(4-1)^2)

  = sqrt( (-4)^2+(3)^2)

 = sqrt(16+9)

 =sqrt(25)

 =5

Answer:

11. d =sqrt( (y2-y1)^2 + (x2-x1) ^2)

 = sqrt( (-3 --5)^2+(-6 - -1)^2)

 = sqrt( (-3+5)^2 + (-6+1)^2)

 = sqrt( 2^2 + (-5)^2)

 = sqrt (4+25)

 = sqrt(29)

12. Using the points ( 1,3) and (4,-1)

d =sqrt( (y2-y1)^2 + (x2-x1) ^2)

 = sqrt( (-1-3)^2+(4-1)^2)

 = sqrt( (-4)^2+(3)^2)

= sqrt(16+9)

=sqrt(25)

=5

Step-by-step explanation:

Answer:

1980

Step-by-step explanation: