Answer:
73
Step-by-step explanation:
let the number = X
If 139 is added, it becomes= X +139
the result becomes 44less than four time the number
= 4(39)-44 = 156-44 =112
the set up equation becomes
X +39 = 112
solving for the value of X
X = 112-39
X = 73
Answer: -6P - 10
Step-by-step explanation:
STEP 1. -12 - 6P + 2
STEP 2. -6P + ( -12 + 2 )
STEP 3. -6P - 10
We know that
Rigid transformation:
A rigid transformation (also called an isometry) is a transformation of the plane that preserves length.
Reflections, translations, rotations, and combinations of these three transformations are "rigid transformations"
so, it's length must be preserved
now, we will check each option
option-A:
we have (x,3y)
y-value changes but x-value will remain same
It changes length
so, this is not rigid transformation
option-B:
we have (3x,y)
x-value changes but y-value will remain same
It changes length
so, this is not rigid transformation
option-C:
(2x, y+2)
It changes length of x-value
but it is only shifting y-value
so, it changes length
so, this is not rigid transformation
option-D:
Both shifts values
but it's length will always be same
so, this is rigid transformation..............Answer
