Answer:
an = 3n - 3
Step-by-step explanation:
The nth term of an arithmetic progression is expressed as;
an = a + (n-1)d
a is the first term
n is the number of terms
d is the common difference
a8 = a + (8-1)d
a8 = a + 7d = 21 ....1
a10 = a+9d = 27 ....2
Subtract 1 from 2
7d - 9d = 21 - 27
-2d = -6
d = -6/-2
d = 3
Since a + 7d = 21
a + 7(3) = 31
a + 21 = 21
a = 21 - 21
a = 0
Get the nth term
Recall that an = a + (n-1)d
an = 0 + (n-1)*3
an = 3n - 3
Hence the nth term of the sequence is 3n - 3
Answer:
904.78 cm^3
Step-by-step explanation:
volume of a sphere equation:
volume = 4/3πr^3
plug n chug:
volume = 4/3 × π × 6^3
volume = 4/3 × π × 216
volume ≈ 904.78 cm^3
Answer:14
Step-by-step explanation:
7*2=14
$31,045.50, or C if this is for algebra nation
Answer:
A
Step-by-step explanation:
