Answer:
All real numbers.
Step-by-step explanation:
Since this is a quadratic function, that means the domain is all real numbers.
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Answer:
8
Step-by-step explanation:
Answer:
x+3 = 5
x-7 = -5
Step-by-step explanation:
x+3 = 5 2+3 = 5 true solution
x+2 = 8 2+2 =4 not a solution
x+1 =1 2+1 =3 not a solution
x-2 = 4 2-2 = 0 not a solution
x-7 = -5 2-7 = -5 true solution
The scale factor of DEF : RST is 3/4.
X = 12
Answer:
Step-by-step explanation:
if the triangles are similar then their sides are in proportion ( or you can think that they make equivalent fractions like 2/3 = 4/6 )
44/ (x+2) = 20/7 = 3x+1 /5 ( all of those are equivalent fractions)
use that
is the same as a*d = b*c
is the same as 20(x+2) = 7*44
20x +40 = 308; subtract 40 from both sides
20x = 268; divide by 20 both sides
x= 13.4