Answer:
Step-by-step explanation:
The measure of the entire area swept out by the minute hand is
A = πr², which in this particular case is:
A = π(4.7 cm)² = 22.09π cm²
The sector in question has the area (25/60)(22.09π cm²), or 9.204π cm², or 28.92 cm² approximately.
Answer: a(n) = 5 - 3n
the sequence has:
a1 = 2
a2 = -1
a3 = -7
.........
we can see that: a2 - a1 = a3 - a2 = -3
=> the sequence is a arithmetic sequence
=> the distance between the numbers is d = -3
because this sequence is a arithmetic sequence
=> a(n) = a1 + (n - 1)d = 2 + (n - 1).(-3) = 5 - 3n
Step-by-step explanation:
if we take 80 as the 100%, what is 60 off of it in percentage?
Answer:
(x²+x+1) + 2/(x-1)
Step-by-step explanation:
(x³ - x² + x² - x + x - 1 + 1 + 1)/(x - 1)
[x²(x-1) + x(x-1) + 1(x-1) + 2]/(x-1)
(x²+x+1) + 2/(x-1)
$4.27
You subtract 17-3 = 14
Then multiple 14 by 0.13
Then add it by 2.45
Giving you 4.27
