Answer:
a₂ = - 28.5
Step-by-step explanation:
the nth term of an arithmetic sequence is
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
here a₁ = - 45 and given a₃ = - 12 , then
a₁ + 2d = - 12 , that is
- 45 + 2d = - 12 ( add 45 to both sides )
2d = 33 ( divide both sides by 2 )
d = 16.5
Then
a₂ = a₁ + d = - 45 + 16.5 = - 28.5
Hello from MrBillDoesMath!
Answer:
Choice C, 14
Discussion:
The question is a bit obtuse bust as I understand it if we take x = 14 (Choice C). determined by trial and error, then
sqrt(91x) =
sqrt ( 91 * 14) =
sqrt (1274 ) =
sqrt (49 *26) = => as sqrt(49) = 7 we can simplify the expression
= 7 sqrt(26)
Thank you,
MrB
3/20 = x/400,
cross multiply
so 20x = 3(400)
20x = 1200
x = 60
The answer is 1360 cubic meters
Answer:
Step-by-step explanation:
You will compose the functions (that is, plug x into one function, plug that function into the inverse function, and then simplify) and verify that you end up with just "x". Here's what it looks like: Determine algebraically whether f (x) = 3x – 2 and g(x) = (x + 2)/3 are inverses of each other.
