Answer:
x = 8 or x = -8
Step-by-step explanation:
x^4 - 256 = 0
<=>x^4 - 4^4 = 0
<=>(x - 8)(x + 8)(x^2 + 64) = 0
Case 1 :
x - 8 = 0
<=>x = 8 (choose)
Case 2:
x + 8 = 0
<=>x = -8 (choose)
Case 3:
x^2 + 64 = 0
<=>x^2 = -64 (nonsense)
so x = 8 or x = -8
Done :))
So if you wanna know how long Marsha did you should multiply 1/10 by 5 so you will have: 5/10 which is equal to 1/2 mile :)))
i hope this is helpful
have a nice day
Answer:
d=14.5
r=14.5/2=7.25
area=4πr^2=3.14×7.25×7.25=165.04 inches sq
Example (not a very likely example, however):
At 11 pm the temperature is -15 degrees F, and it continues to drop by 10 degrees F every hour.
It’s A. Have a good day. HALVES:/