To find invers
1. solve for y
2. replace y with xinverse
so
x=4-4y+y^2
reorder right side
x=y^2-4y+4
factor right side
x=(y-2)^2
squaer root both sides
+/-√x=y-2
add 2 to both sides
2+/-√x=y
switch x and y
2+/-√y=xinverse
xinverse=2+√y or 2-√y
subtract 4 from both sides
Answer:
Jamar is correct.
Step-by-step explanation:
The scores are as follows :
−3, 2, 0, −1, 2, −4.
These numbers include negative, positive and 0 as well. These numbers cannot written in a fractional form. It means they are integers.
Here, amar says these numbers can all be described as integers, while Sophia says they are whole numbers.
It would mean that Amar is correct. Sophia is incorrect because she told that the are whole numbers. Whole numbers are simply number like 0,1,2,3,4....
(1,35)(2,60)(3,92)(4,120)(5,175)
Option B:
Solution:
In the given figure 
.
If two triangles are similar, then their corresponding sides and angles are equal.
By CPCTC, in 
,
– – – – (1)
– – – – (2)
– – – – (3)
– – – – (4)
– – – – (5)
– – – – (6)
Option A: 
By CPCTC proved in equation (2) .
Therefore 
. Option A is false.
Option B:
By CPCTC proved in equation (1) .
Therefore Option B is true.
Option C: 
By CPCTC proved in equation (4) .
Therefore 
. Option C is false.
Option D: 
By CPCTC proved in equation (5) .
Therefore 
. Option D is false.
Hence Option B is the correct answer.
Milena was 9 years and 3 months old
