When taking square roots, you can't take square roots of negative roots of negative numbers. So, what will work for the domain of u(x) is what makes u(x) zero or more. We can make an inequality for that.
u(x) ≥ 0.
9x + 27 ≥ 0 by squaring both sides
9x ≥ -27
x ≥ -3
So the domain of the function is when x ≥ -3 is true.
Answer:
1/10
Step-by-step explanation:
1/2 divided by 5 = 1/10
D is days
m is miles
0.16m + 64d (this is rate 1)
0.08m + 128d ( this is rate 2)
since you plan to rent for one day, input d as 1.
0.16m + 64(1)
0.08m + 128(1)
i hope i gave you enough hints
Х - 15 = 32
х = 32 + 15
x = 47 (answer)
-----------------------
47 - 15 = 32
32 = 32
х - 7.2 = 23,1
х = 23,1 + 7.2
х = 30,3 (answer)
---------------------------
30,3 - 7,2 = 23,1
23,1 = 23,1
Answer:
20
Step-by-step explanation:
the lowest number they can all muliply to is 20
20 x 1 = 20
5 x 4 = 20
2 x 10 = 20
