This has an domain of all real numbers
Answer:
BXF = 75
Step-by-step explanation:
We know that CXE is a straight line
A straight line is 180 degrees
CXE = CXG + GXD +DXE
Substituting what we know
180 = 85+ GXD + 20
Combine like terms
180 = 105+GXD
Subtract 105 from each side
180-105 = 105-105 +GXD
75 = GXD
GXD and BXF are vertical angles
GXD = 75 which means BXF = 75
Step-by-step explanation:
- First, the radical needs to be alone on one side of the equation, if there is - 4, - 3 next to it then you'll have to transfer it to the opposite side like that:
5. (y+7)^0.5 - 4=4
(y+7)^0.5=8......
- Second, you need to square the two sides of the equation :
5.((y+7)^0.5) ^2=8^2
Y+7=64
Y+7-7=64-7
Y=57
Note: if the radical's index is (2) then you'll square the two sides of the equation, but if the index is (3) you'll have to cube the two sides of the equation, "look at the exercises 9,10"
From my knowledge, I think it is 9