Sarah is making a scale drawing of a painting that is 48in. Wide by 120 in. High. Her paper is 12in. Wide and 24in. Tall. She decides to use the scale 1in. =4 in. Is this a reasonable scale?

Yes

Step-by-step explanation:

This answer is reasonable, because 48 divide by 12 = 4. 120 divided by 24 = 5 Five is close to four so the scale 1 in. = 4 IS reasonable! Good Luck With Your Math!

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional