Answer:
31/1488 --> 1/48
Step-by-step explanation:
1. let 31/1488=x^-1
2. 31*x^-1=1488
3. 31*48=1488
Answer:

Step-by-step explanation:
The area of a circle varies directly as the square of its radius.

If r₁ = 2in, A₁ = 12.568 in₂, r₂ = 6.4 in, A₂ = ?
ATQ,

So, the new area of the circle is
.
It's been awhile since I've worked with infinite series and partial sums, but here are my thoughts:
A. the first 4 terms: -4,

,

,

B. In examining the partial sums of the series, it appears that the sequence produced has a limit and therefore the series would be convergent.
C. the limit or sum of the series looks to be -5 Below look at the sequence of partial sums:
-4,

,

,

So you can see we're getting closer and closer to -5
Answer:
A
Step-by-step explanation:
HAD QUESTON
Step-by-step explanation:
(-4)^11,13^9,9^7,(-24)^4