I think is is D={1, 2, 3, 4}
Answer:
287/2π
Step-by-step explanation:
We know that the equation for the circumference is πd, so with πd=287, we can divide both sides by π to get d, the diameter, equal to 287/π. Then, we can divide both sides by 2 to get d/2, or the radius, equivalent to 287/2π
17 is C, 18 is J,and 19 is B.We just and a math test in this and I got an A+
Answer:
2
Step-by-step explanation:
Given: a² +a +1= 0
Bringing a terms to the right-hand side:
1= -a² -a
-a² -a= 1
-a -a²= 1
1 -a -a²
= (-a -a²) +1
= 1 +1
= 2
