Answer:
Step-by-step explanation:
Original equation
√x+6-4 = x
Isolate
√x+6 = 4+x
Raise both sides to the second power
(√x+6)2 = (4+x)2
After squaring
x+6 = x2+8x+16
Rearranged equation
x2 + 7x + 10 = 0
This equation has two rational roots:
{x1, x2}={-2, -5}
Original equation, root isolated
√x+6 = 4+x
Plug in -2 for x
√(-2)+6 = 4+(-2)
Simplify
√4 = 2
Solution checks !!
Solution is:
x = -2
Original equation, root isolated
√x+6 = 4+x
Plug in -5 for x
√(-5)+6 = 4+(-5)
Simplify
√1 = -1
Solution does not check
1 ≠ -1
2-2n=3n+17
2= 5n+17
0= 5n+15
-15= 5n
-3= n
It's approximately 0.0032
Answer:
100 feet squared: can u plz give me the brainliest answer!!!!!!!!! plz!!!!!!!!!!!
Step-by-step explanation:
Area of triangle: base x height divided by 2.
25 x 8 = 200
200/2 = 100
Have a nice day!!!!!!!!!! :-)
<u>KA</u>
Since the scale factor is smaller than one (the original), the resulting image is smaller than the original.
Hope this helped, and feel free to ask more questions if needed(:
