We must graph y=x^3-9x^2+11x+21. Please, see the attached file.
Then we see were the graph cuts the x-axis, and these values of x are the real solutions of the given equation:
The real solutions of the given equation are:x = -1, 3, and 7
Okay. Let’s see... In total, the time would be 5 hours and 15 minutes. We can turn everything to minutes first. It’ll be 315 minutes. Divide that by miles, 4.05... so if we round it, 4.05 miles/per minute
Answer:
C)√
72
Step-by-step explanation:
We will Simplify the radical by breaking the radicand up into a product of known factors.
When we do this, we figure out that...
A.√
49 = 7
B.√
64 = 8
D.√
121 = 11
BUT C) is different.
√
72 can not be divided into any whole number an exact amount of times.
So instead, this can be solved by writing it as shown:
Exact Form:
6
√
2
Decimal Form:
8.48528137
Thanks for letting me help!!
Answer:
35,25,20,5
Step-by-step explanation:
X.......Y
-2.....35 ( Assuming he has been spending 5$ a week we can backtrack)
0........25 ( given)
1.........20 ( he has spent 5)
4..........5 ( 5*4=20-25=5)
